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<mods:title id="A364C41AD3B2F28D154894043BEE8978">Plastid phylogenomics of the Eriostemon group (Rutaceae; Zanthoxyloideae): support for major clades and investigation of a backbone polytomy</mods:title>
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<mods:namePart id="E74FB97A76290DB7F7B705187521F58C">Orel, Harvey K.</mods:namePart>
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<mods:namePart id="84C85FCDAC561B027023E0CF991411CF">McLay, Todd G. B.</mods:namePart>
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<mods:namePart id="3B27F0C6C1DEB48CA681787B9203632B">Neal, Will C.</mods:namePart>
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<mods:namePart id="C65C4FECE875E680559E13D67CBDDFE0">Forster, Paul I.</mods:namePart>
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<mods:date id="5FD3F17B3EC9579D690B7C03F297F396">2023</mods:date>
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<paragraph id="6B5336FCE220FF90678FF931E9B0F92D" blockId="19.[98,770,1681,1933]" box="[130,756,1681,1711]" pageId="19" pageNumber="374">
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<emphasis id="5998EAEEE220FF90678FF931E9B0F92D" bold="true" box="[130,756,1681,1711]" pageId="19" pageNumber="374">
Relationships of
<taxonomicName id="ACEC4D7FE220FF906657F931EA97F92D" ID-CoL="63CCX" authority="Engl." box="[346,467,1681,1709]" class="Magnoliopsida" family="Rutaceae" genus="Myrtopsis" kingdom="Plantae" order="Sapindales" pageId="19" pageNumber="374" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE220FF906657F931EA97F92D" bold="true" box="[346,467,1681,1709]" italics="true" pageId="19" pageNumber="374">Myrtopsis</emphasis>
</taxonomicName>
,
<taxonomicName id="ACEC4D7FE220FF9066E9F933E97DF92F" authority="Andrews" box="[484,569,1683,1711]" class="Magnoliopsida" family="Rutaceae" genus="Correa" kingdom="Plantae" order="Sapindales" pageId="19" pageNumber="374" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE220FF9066E9F933E97DF92F" bold="true" box="[484,569,1683,1711]" italics="true" pageId="19" pageNumber="374">Correa</emphasis>
</taxonomicName>
and
<taxonomicName id="ACEC4D7FE220FF906571F931E9B0F92D" authority="(F.Muell.) Paul G.Wilson" box="[636,756,1681,1709]" class="Magnoliopsida" family="Rutaceae" genus="Leionema" kingdom="Plantae" order="Sapindales" pageId="19" pageNumber="374" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE220FF906571F931E9B0F92D" bold="true" box="[636,756,1681,1709]" italics="true" pageId="19" pageNumber="374">Leionema</emphasis>
</taxonomicName>
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We provide high support for a clade of
<taxonomicName id="ACEC4D7FE220FF906532F914E9CDF94C" box="[575,649,1716,1740]" class="Magnoliopsida" family="Rutaceae" genus="Correa" kingdom="Plantae" order="Sapindales" pageId="19" pageNumber="374" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE220FF906532F914E9CDF94C" bold="true" box="[575,649,1716,1740]" italics="true" pageId="19" pageNumber="374">Correa</emphasis>
</taxonomicName>
,
<taxonomicName id="ACEC4D7FE220FF906594F914E846F94C" box="[665,770,1716,1740]" class="Magnoliopsida" family="Rutaceae" genus="Leionema" kingdom="Plantae" order="Sapindales" pageId="19" pageNumber="374" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE220FF906594F914E846F94C" bold="true" box="[665,770,1716,1740]" italics="true" pageId="19" pageNumber="374">Leionema</emphasis>
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and
<taxonomicName id="ACEC4D7FE220FF90679FF974EBB8F96C" box="[146,252,1748,1772]" class="Magnoliopsida" family="Rutaceae" genus="Myrtopsis" kingdom="Plantae" order="Sapindales" pageId="19" pageNumber="374" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE220FF90679FF974EBB8F96C" bold="true" box="[146,252,1748,1772]" italics="true" pageId="19" pageNumber="374">Myrtopsis</emphasis>
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, three genera that previous studies have been unable to confidently place (
<bibRefCitation id="0F7D4B0DE220FF9066BFF954E93EF88C" author="Bayly MJ &amp; Holmes GD &amp; Forster PI &amp; Cantrill DJ &amp; Ladiges PY" box="[434,634,1780,1804]" pageId="19" pageNumber="374" pagination="72493" refId="ref19397" refString="Bayly MJ, Holmes GD, Forster PI, Cantrill DJ, Ladiges PY (2013) Major clades of Australasian Rutoideae (Rutaceae) based on rbcL and atpB sequences. PLoS One 8, e 72493. doi: 10.1371 / journal. pone. 0072493" type="journal article" year="2013">
Bayly
<emphasis id="5998EAEEE220FF9066F1F954E972F88C" bold="true" box="[508,566,1780,1804]" italics="true" pageId="19" pageNumber="374">et al.</emphasis>
2013
</bibRefCitation>
;
<bibRefCitation id="0F7D4B0DE220FF906581F954EBA5F8AC" author="Appelhans MS &amp; Bayly MJ &amp; Heslewood MM &amp; Groppo M &amp; Verboom GA &amp; Forster PI &amp; Kallunki JA &amp; Duretto MF" pageId="19" pageNumber="374" pagination="1035 - 1061" refId="ref18956" refString="Appelhans MS, Bayly MJ, Heslewood MM, Groppo M, Verboom GA, Forster PI, Kallunki JA, Duretto MF (2021) A new subfamily classification of the Citrus family (Rutaceae) based on six nuclear and plastid markers. Taxon 70, 1035 - 1061. doi: 10.1002 / tax. 12543" type="journal article" year="2021">
Appelhans
<emphasis id="5998EAEEE220FF90676FF8B4EBD8F8AC" bold="true" box="[98,156,1812,1836]" italics="true" pageId="19" pageNumber="374">et al.</emphasis>
2021
</bibRefCitation>
); this group was recovered as an unsupported clade by
<bibRefCitation id="0F7D4B0DE220FF9067CAF894EAF4F8CC" author="Duretto MF &amp; Heslewood MM &amp; Bayly MJ" box="[199,432,1843,1868]" pageId="19" pageNumber="374" pagination="107 - 142" refId="ref19961" refString="Duretto MF, Heslewood MM, Bayly MJ (2023) Generic and infrageneric limits of Phebalium and its allies (Rutaceae: Zanthoxyloideae). Australian Systematic Botany 36, 107 - 142. doi: 10.1071 / SB 22018" type="journal article" year="2023">
Duretto
<emphasis id="5998EAEEE220FF906629F894EA1FF8CB" bold="true" box="[292,347,1843,1867]" italics="true" pageId="19" pageNumber="374">et al.</emphasis>
(2023)
</bibRefCitation>
. This clade contains probably the most varied morphological characters in the
<taxonomicName id="ACEC4D7FE220FF906585F8F4E846F8EC" box="[648,770,1876,1900]" class="Magnoliopsida" family="Rutaceae" genus="Eriostemon" kingdom="Plantae" order="Sapindales" pageId="19" pageNumber="374" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE220FF906585F8F4E846F8EC" bold="true" box="[648,770,1876,1900]" italics="true" pageId="19" pageNumber="374">Eriostemon</emphasis>
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group. The recovery of a sister relationship between
<taxonomicName id="ACEC4D7FE220FF90643FFAD4E8DFFA0C" box="[818,923,1396,1420]" class="Magnoliopsida" family="Rutaceae" genus="Leionema" kingdom="Plantae" order="Sapindales" pageId="19" pageNumber="374" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE220FF90643FFAD4E8DFFA0C" bold="true" box="[818,923,1396,1420]" italics="true" pageId="19" pageNumber="374">Leionema</emphasis>
</taxonomicName>
and
<taxonomicName id="ACEC4D7FE220FF9064DFFAD4EF58FA0C" box="[978,1052,1396,1420]" class="Magnoliopsida" family="Rutaceae" genus="Correa" kingdom="Plantae" order="Sapindales" pageId="19" pageNumber="374" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE220FF9064DFFAD4EF58FA0C" bold="true" box="[978,1052,1396,1420]" italics="true" pageId="19" pageNumber="374">Correa</emphasis>
</taxonomicName>
is congruent with the plastid sequence phylogeny of
<bibRefCitation id="0F7D4B0DE220FF9064C4FA35EFEAFA2C" author="Duretto MF &amp; Heslewood MM &amp; Bayly MJ" box="[969,1198,1428,1452]" pageId="19" pageNumber="374" pagination="107 - 142" refId="ref19961" refString="Duretto MF, Heslewood MM, Bayly MJ (2023) Generic and infrageneric limits of Phebalium and its allies (Rutaceae: Zanthoxyloideae). Australian Systematic Botany 36, 107 - 142. doi: 10.1071 / SB 22018" type="journal article" year="2023">
Duretto
<emphasis id="5998EAEEE220FF906328FA34EF1EFA2C" bold="true" box="[1061,1114,1428,1452]" italics="true" pageId="19" pageNumber="374">et al.</emphasis>
(2023)
</bibRefCitation>
and is of note because the two genera differ vastly morphologically.
<taxonomicName id="ACEC4D7FE220FF906219FA14EE1AFA4C" box="[1300,1374,1460,1484]" class="Magnoliopsida" family="Rutaceae" genus="Correa" kingdom="Plantae" order="Sapindales" pageId="19" pageNumber="374" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE220FF906219FA14EE1AFA4C" bold="true" box="[1300,1374,1460,1484]" italics="true" pageId="19" pageNumber="374">Correa</emphasis>
</taxonomicName>
is unique in the
<taxonomicName id="ACEC4D7FE220FF906477FA74E8B0FA6C" box="[890,1012,1492,1516]" class="Magnoliopsida" family="Rutaceae" genus="Eriostemon" kingdom="Plantae" order="Sapindales" pageId="19" pageNumber="374" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE220FF906477FA74E8B0FA6C" bold="true" box="[890,1012,1492,1516]" italics="true" pageId="19" pageNumber="374">Eriostemon</emphasis>
</taxonomicName>
group in possessing consistently 4-merous flowers that are mostly tubular and bird-pollinated (except for
<taxonomicName id="ACEC4D7FE220FF906454F9B4EF51F9AC" authority="Andrews" authorityName="Andrews" box="[857,1045,1555,1580]" class="Magnoliopsida" family="Rutaceae" genus="Correa" kingdom="Plantae" order="Sapindales" pageId="19" pageNumber="374" phylum="Tracheophyta" rank="species" species="alba">
<emphasis id="5998EAEEE220FF906454F9B4E8ECF9AB" bold="true" box="[857,936,1555,1580]" italics="true" pageId="19" pageNumber="374">C. alba</emphasis>
Andrews
</taxonomicName>
, which is nested among bird-pollinated species) (
<bibRefCitation id="0F7D4B0DE220FF9064ADF994EF18F9CC" author="Armstrong JA" box="[928,1116,1588,1612]" pageId="19" pageNumber="374" pagination="467 - 508" refId="ref19015" refString="Armstrong JA (1979) Biotic pollination mechanisms in the Australian flora - a review. New Zealand Journal of Botany 17, 467 - 508. doi: 10.1080 / 0028825 X. 1979.10432565" type="journal article" year="1979">Armstrong 1979</bibRefCitation>
;
<bibRefCitation id="0F7D4B0DE220FF90637DF994EE08F9CC" author="French PA &amp; Brown GK &amp; Bayly MJ" box="[1136,1356,1588,1612]" pageId="19" pageNumber="374" pagination="447 - 468" refId="ref20208" refString="French PA, Brown GK, Bayly MJ (2016) Incongruent patterns of nuclear and chloroplast variation in Correa (Rutaceae): introgression and biogeography in south-eastern Australia. Plant Systematics and Evolution 302, 447 - 468. doi: 10.1007 / s 00606 - 016 - 1277 - 7" type="journal article" year="2016">
French
<emphasis id="5998EAEEE220FF9063C7F994EE42F9CC" bold="true" box="[1226,1286,1588,1612]" italics="true" pageId="19" pageNumber="374">et al.</emphasis>
2016
</bibRefCitation>
). Although bird pollination occurs in other taxa (e.g. some
<taxonomicName id="ACEC4D7FE220FF90626FF9F4EE8FF9EC" box="[1378,1483,1620,1644]" class="Magnoliopsida" family="Rutaceae" genus="Leionema" kingdom="Plantae" order="Sapindales" pageId="19" pageNumber="374" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE220FF90626FF9F4EE8FF9EC" bold="true" box="[1378,1483,1620,1644]" italics="true" pageId="19" pageNumber="374">Leionema</emphasis>
</taxonomicName>
,
<taxonomicName id="ACEC4D7FE220FF90643FF9D3E8FCF90B" box="[818,952,1651,1675]" class="Magnoliopsida" family="Rutaceae" genus="Nematolepis" kingdom="Plantae" order="Sapindales" pageId="19" pageNumber="374" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE220FF90643FF9D3E8FCF90B" bold="true" box="[818,952,1651,1675]" italics="true" pageId="19" pageNumber="374">Nematolepis</emphasis>
</taxonomicName>
and
<taxonomicName id="ACEC4D7FE220FF9064FCF9D3EF20F90B" authorityName="sensu Wilson" authorityYear="1971" box="[1009,1124,1651,1675]" class="Magnoliopsida" family="Rutaceae" genus="Philotheca" kingdom="Plantae" order="Sapindales" pageId="19" pageNumber="374" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE220FF9064FCF9D3EF20F90B" bold="true" box="[1009,1124,1651,1675]" italics="true" pageId="19" pageNumber="374">Philotheca</emphasis>
</taxonomicName>
), the flowers of all other genera in the group are 5-merous (with the exception of
<taxonomicName id="ACEC4D7FE220FF906252F934EFE4F94C" authority="(Hook. f.) Paul G. Wilson" baseAuthorityName="Hook. f." class="Magnoliopsida" family="Rutaceae" genus="Philotheca" kingdom="Plantae" order="Sapindales" pageId="19" pageNumber="374" phylum="Tracheophyta" rank="species" species="virgata">
<emphasis id="5998EAEEE220FF906252F934E83AF94C" bold="true" italics="true" pageId="19" pageNumber="374">Philotheca virgata</emphasis>
(Hook.f.) Paul G.Wilson
</taxonomicName>
).
<taxonomicName id="ACEC4D7FE220FF9063BBF914EE44F94C" box="[1206,1280,1716,1740]" class="Magnoliopsida" family="Rutaceae" genus="Correa" kingdom="Plantae" order="Sapindales" pageId="19" pageNumber="374" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE220FF9063BBF914EE44F94C" bold="true" box="[1206,1280,1716,1740]" italics="true" pageId="19" pageNumber="374">Correa</emphasis>
</taxonomicName>
is also distinct in possessing leaves that are oppositely arranged, although this feature also occurs in
<taxonomicName id="ACEC4D7FE220FF90633EF954EFD9F88C" box="[1075,1181,1780,1804]" class="Magnoliopsida" family="Rutaceae" genus="Myrtopsis" kingdom="Plantae" order="Sapindales" pageId="19" pageNumber="374" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE220FF90633EF954EFD9F88C" bold="true" box="[1075,1181,1780,1804]" italics="true" pageId="19" pageNumber="374">Myrtopsis</emphasis>
</taxonomicName>
. All other members of the
<taxonomicName id="ACEC4D7FE220FF90643FF8B4E8E8F8AC" box="[818,940,1812,1836]" class="Magnoliopsida" family="Rutaceae" genus="Eriostemon" kingdom="Plantae" order="Sapindales" pageId="19" pageNumber="374" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE220FF90643FF8B4E8E8F8AC" bold="true" box="[818,940,1812,1836]" italics="true" pageId="19" pageNumber="374">Eriostemon</emphasis>
</taxonomicName>
group have alternate leaves. Consequently, the order of relationships among
<taxonomicName id="ACEC4D7FE220FF9063C2F894EE5DF8CC" box="[1231,1305,1844,1868]" class="Magnoliopsida" family="Rutaceae" genus="Correa" kingdom="Plantae" order="Sapindales" pageId="19" pageNumber="374" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE220FF9063C2F894EE5DF8CC" bold="true" box="[1231,1305,1844,1868]" italics="true" pageId="19" pageNumber="374">Correa</emphasis>
</taxonomicName>
,
<taxonomicName id="ACEC4D7FE220FF90623DF894EEDDF8CC" box="[1328,1433,1844,1868]" class="Magnoliopsida" family="Rutaceae" genus="Leionema" kingdom="Plantae" order="Sapindales" pageId="19" pageNumber="374" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE220FF90623DF894EEDDF8CC" bold="true" box="[1328,1433,1844,1868]" italics="true" pageId="19" pageNumber="374">Leionema</emphasis>
</taxonomicName>
and
<taxonomicName id="ACEC4D7FE220FF90643FF8F4E8D8F8EC" box="[818,924,1876,1900]" class="Magnoliopsida" family="Rutaceae" genus="Myrtopsis" kingdom="Plantae" order="Sapindales" pageId="19" pageNumber="374" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE220FF90643FF8F4E8D8F8EC" bold="true" box="[818,924,1876,1900]" italics="true" pageId="19" pageNumber="374">Myrtopsis</emphasis>
</taxonomicName>
that we have recovered, (
<taxonomicName id="ACEC4D7FE220FF9063F4F8F4EE27F8EC" box="[1273,1379,1876,1900]" class="Magnoliopsida" family="Rutaceae" genus="Myrtopsis" kingdom="Plantae" order="Sapindales" pageId="19" pageNumber="374" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE220FF9063F4F8F4EE27F8EC" bold="true" box="[1273,1379,1876,1900]" italics="true" pageId="19" pageNumber="374">Myrtopsis</emphasis>
</taxonomicName>
(
<taxonomicName id="ACEC4D7FE220FF90628DF8F4EE8EF8EC" box="[1408,1482,1876,1900]" class="Magnoliopsida" family="Rutaceae" genus="Correa" kingdom="Plantae" order="Sapindales" pageId="19" pageNumber="374" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE220FF90628DF8F4EE8EF8EC" bold="true" box="[1408,1482,1876,1900]" italics="true" pageId="19" pageNumber="374">Correa</emphasis>
</taxonomicName>
,
<taxonomicName id="ACEC4D7FE220FF90643FF8D4E8DFF80C" box="[818,923,1908,1932]" class="Magnoliopsida" family="Rutaceae" genus="Leionema" kingdom="Plantae" order="Sapindales" pageId="19" pageNumber="374" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE220FF90643FF8D4E8DFF80C" bold="true" box="[818,923,1908,1932]" italics="true" pageId="19" pageNumber="374">Leionema</emphasis>
</taxonomicName>
)), implies either a single transition to opposite leaves at the stem of the clade and a subsequent reversal to alternate leaves in
<taxonomicName id="ACEC4D7FE227FF976634FF74EAE6FF6C" box="[313,418,212,236]" class="Magnoliopsida" family="Rutaceae" genus="Leionema" kingdom="Plantae" order="Sapindales" pageId="20" pageNumber="375" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE227FF976634FF74EAE6FF6C" bold="true" box="[313,418,212,236]" italics="true" pageId="20" pageNumber="375">Leionema</emphasis>
</taxonomicName>
, or separate independent transitions to opposite leaves in
<taxonomicName id="ACEC4D7FE227FF9766C9FF54E96AFE8C" box="[452,558,244,268]" class="Magnoliopsida" family="Rutaceae" genus="Myrtopsis" kingdom="Plantae" order="Sapindales" pageId="20" pageNumber="375" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE227FF9766C9FF54E96AFE8C" bold="true" box="[452,558,244,268]" italics="true" pageId="20" pageNumber="375">Myrtopsis</emphasis>
</taxonomicName>
and
<taxonomicName id="ACEC4D7FE227FF97657AFF54E985FE8C" box="[631,705,244,268]" class="Magnoliopsida" family="Rutaceae" genus="Correa" kingdom="Plantae" order="Sapindales" pageId="20" pageNumber="375" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE227FF97657AFF54E985FE8C" bold="true" box="[631,705,244,268]" italics="true" pageId="20" pageNumber="375">Correa</emphasis>
</taxonomicName>
. The placement of the New Caledonian endemic
<taxonomicName id="ACEC4D7FE227FF976546FEB4E9F1FEAC" box="[587,693,276,300]" class="Magnoliopsida" family="Rutaceae" genus="Myrtopsis" kingdom="Plantae" order="Sapindales" pageId="20" pageNumber="375" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE227FF976546FEB4E9F1FEAC" bold="true" box="[587,693,276,300]" italics="true" pageId="20" pageNumber="375">Myrtopsis</emphasis>
</taxonomicName>
firmly within the
<taxonomicName id="ACEC4D7FE227FF9767EDFE94EA1EFECC" box="[224,346,308,332]" class="Magnoliopsida" family="Rutaceae" genus="Eriostemon" kingdom="Plantae" order="Sapindales" pageId="20" pageNumber="375" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE227FF9767EDFE94EA1EFECC" bold="true" box="[224,346,308,332]" italics="true" pageId="20" pageNumber="375">Eriostemon</emphasis>
</taxonomicName>
group is consistent with several previous studies (
<bibRefCitation id="0F7D4B0DE227FF976602FEF4EA9BFEEC" author="Bayly MJ &amp; Holmes GD &amp; Forster PI &amp; Cantrill DJ &amp; Ladiges PY" box="[271,479,340,364]" pageId="20" pageNumber="375" pagination="72493" refId="ref19397" refString="Bayly MJ, Holmes GD, Forster PI, Cantrill DJ, Ladiges PY (2013) Major clades of Australasian Rutoideae (Rutaceae) based on rbcL and atpB sequences. PLoS One 8, e 72493. doi: 10.1371 / journal. pone. 0072493" type="journal article" year="2013">
Bayly
<emphasis id="5998EAEEE227FF976656FEF4EADCFEEC" bold="true" box="[347,408,340,364]" italics="true" pageId="20" pageNumber="375">et al.</emphasis>
2013
</bibRefCitation>
;
<bibRefCitation id="0F7D4B0DE227FF9766F9FEF4E9BEFEEC" author="Appelhans MS &amp; Bayly MJ &amp; Heslewood MM &amp; Groppo M &amp; Verboom GA &amp; Forster PI &amp; Kallunki JA &amp; Duretto MF" box="[500,762,340,364]" pageId="20" pageNumber="375" pagination="1035 - 1061" refId="ref18956" refString="Appelhans MS, Bayly MJ, Heslewood MM, Groppo M, Verboom GA, Forster PI, Kallunki JA, Duretto MF (2021) A new subfamily classification of the Citrus family (Rutaceae) based on six nuclear and plastid markers. Taxon 70, 1035 - 1061. doi: 10.1002 / tax. 12543" type="journal article" year="2021">
Appelhans
<emphasis id="5998EAEEE227FF97657BFEF4E9F7FEEC" bold="true" box="[630,691,340,364]" italics="true" pageId="20" pageNumber="375">et al.</emphasis>
2021
</bibRefCitation>
;
<bibRefCitation id="0F7D4B0DE227FF97676FFED4EA60FE0C" author="Baker WJ &amp; Bailey P &amp; Barber V &amp; Barker A &amp; Bellot S &amp; Bishop D &amp; Botigue LR &amp; Brewer G &amp; Carruthers T &amp; Clarkson JJ &amp; Cook J" box="[98,292,372,396]" pageId="20" pageNumber="375" pagination="301 - 319" refId="ref19116" refString="Baker WJ, Bailey P, Barber V, Barker A, Bellot S, Bishop D, Botigue LR, Brewer G, Carruthers T, Clarkson JJ, Cook J (2022) A comprehensive phylogenomic platform for exploring the angiosperm tree of life. Systematic Biology 71, 301 - 319. doi: 10.1093 / sysbio / syab 035" type="journal article" year="2022">
Baker
<emphasis id="5998EAEEE227FF9767A7FED4EBA6FE0C" bold="true" box="[170,226,372,396]" italics="true" pageId="20" pageNumber="375">et al.</emphasis>
2022
</bibRefCitation>
;
<bibRefCitation id="0F7D4B0DE227FF976639FED5E948FE0C" author="Duretto MF &amp; Heslewood MM &amp; Bayly MJ" box="[308,524,372,396]" pageId="20" pageNumber="375" pagination="107 - 142" refId="ref19961" refString="Duretto MF, Heslewood MM, Bayly MJ (2023) Generic and infrageneric limits of Phebalium and its allies (Rutaceae: Zanthoxyloideae). Australian Systematic Botany 36, 107 - 142. doi: 10.1071 / SB 22018" type="journal article" year="2023">
Duretto
<emphasis id="5998EAEEE227FF97669FFED4EA8DFE0C" bold="true" box="[402,457,372,396]" italics="true" pageId="20" pageNumber="375">et al.</emphasis>
2023
</bibRefCitation>
).
</paragraph>
<paragraph id="6B5336FCE227FF97678FFE34E9B3FC0B" blockId="20.[98,770,180,1708]" pageId="20" pageNumber="375">
Historically, the relationship of
<taxonomicName id="ACEC4D7FE227FF9766DEFE34E979FE2C" box="[467,573,404,428]" class="Magnoliopsida" family="Rutaceae" genus="Myrtopsis" kingdom="Plantae" order="Sapindales" pageId="20" pageNumber="375" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE227FF9766DEFE34E979FE2C" bold="true" box="[467,573,404,428]" italics="true" pageId="20" pageNumber="375">Myrtopsis</emphasis>
</taxonomicName>
with other genera of Austral-Pacific
<taxonomicName id="ACEC4D7FE227FF97662BFE14EACCFE4B" box="[294,392,436,459]" class="Magnoliopsida" family="Rutaceae" kingdom="Plantae" order="Sapindales" pageId="20" pageNumber="375" phylum="Tracheophyta" rank="family">Rutaceae</taxonomicName>
has been difficult to deduce from morphology. On the basis of morphological cladistic analyses,
<bibRefCitation id="0F7D4B0DE227FF97676FFE54EA76FD8C" author="Armstrong JA" box="[98,306,500,524]" pageId="20" pageNumber="375" refId="ref19072" refString="Armstrong JA (1991) Studies on pollination and systematics in the Australian Rutaceae. PhD thesis, University of New South Wales, Sydney, NSW, Australia. Available at http: // hdl. handle. net / 1959.4 / 59714" type="url" year="1991">Armstrong (1991)</bibRefCitation>
resolved the genus as sister to the
<taxonomicName id="ACEC4D7FE227FF97676FFDB4EB98FDAC" box="[98,220,532,556]" class="Magnoliopsida" family="Rutaceae" genus="Eriostemon" kingdom="Plantae" order="Sapindales" pageId="20" pageNumber="375" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE227FF97676FFDB4EB98FDAC" bold="true" box="[98,220,532,556]" italics="true" pageId="20" pageNumber="375">Eriostemon</emphasis>
</taxonomicName>
group (minus
<taxonomicName id="ACEC4D7FE227FF976687FDB4EA90FDAC" box="[394,468,532,556]" class="Magnoliopsida" family="Rutaceae" genus="Correa" kingdom="Plantae" order="Sapindales" pageId="20" pageNumber="375" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE227FF976687FDB4EA90FDAC" bold="true" box="[394,468,532,556]" italics="true" pageId="20" pageNumber="375">Correa</emphasis>
</taxonomicName>
, which was placed in the
<taxonomicName id="ACEC4D7FE227FF97676FFD94EBFDFDCC" box="[98,185,564,588]" class="Magnoliopsida" family="Rutaceae" genus="Boronia" kingdom="Plantae" order="Sapindales" pageId="20" pageNumber="375" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE227FF97676FFD94EBFDFDCC" bold="true" box="[98,185,564,588]" italics="true" pageId="20" pageNumber="375">Boronia</emphasis>
</taxonomicName>
clade), although this placement was equivocal owing to limited availability of plant material. This contrasted with
<bibRefCitation id="0F7D4B0DE227FF97676FFDD4EA45FD0C" author="Hartley TG" box="[98,257,628,652]" pageId="20" pageNumber="375" pagination="107 - 111" refId="ref20599" refString="Hartley TG (1995) A new combination in Boronella (Rutaceae) and a view on relationships of the genus. Adansonia 17, 107 - 111." type="journal article" year="1995">Hartley (1995)</bibRefCitation>
, who considered
<taxonomicName id="ACEC4D7FE227FF9766B1FDD4E962FD0C" box="[444,550,628,652]" class="Magnoliopsida" family="Rutaceae" genus="Myrtopsis" kingdom="Plantae" order="Sapindales" pageId="20" pageNumber="375" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE227FF9766B1FDD4E962FD0C" bold="true" box="[444,550,628,652]" italics="true" pageId="20" pageNumber="375">Myrtopsis</emphasis>
</taxonomicName>
most closely related to
<taxonomicName id="ACEC4D7FE227FF976789FD34EA77FD2C" authority="Baill." authorityName="Baill." box="[132,307,660,684]" class="Magnoliopsida" family="Rutaceae" genus="Boronella" kingdom="Plantae" order="Sapindales" pageId="20" pageNumber="375" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE227FF976789FD34EBAAFD2C" bold="true" box="[132,238,660,684]" italics="true" pageId="20" pageNumber="375">Boronella</emphasis>
Baill.
</taxonomicName>
(=
<taxonomicName id="ACEC4D7FE227FF97666DFD34EAB5FD2C" authority="Sm." authorityName="Sm." box="[352,497,660,684]" class="Magnoliopsida" family="Rutaceae" genus="Boronia" kingdom="Plantae" order="Sapindales" pageId="20" pageNumber="375" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE227FF97666DFD34EAF3FD2C" bold="true" box="[352,439,660,684]" italics="true" pageId="20" pageNumber="375">Boronia</emphasis>
Sm.
</taxonomicName>
),
<taxonomicName id="ACEC4D7FE227FF976504FD34E911FD2C" box="[521,597,660,684]" class="Magnoliopsida" family="Rutaceae" genus="Euodia" kingdom="Plantae" order="Sapindales" pageId="20" pageNumber="375" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE227FF976504FD34E911FD2C" bold="true" box="[521,597,660,684]" italics="true" pageId="20" pageNumber="375">Euodia</emphasis>
</taxonomicName>
,
<taxonomicName id="ACEC4D7FE227FF976564FD34E988FD2C" box="[617,716,660,684]" class="Magnoliopsida" family="Rutaceae" genus="Brombya" kingdom="Plantae" order="Sapindales" pageId="20" pageNumber="375" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE227FF976564FD34E988FD2C" bold="true" box="[617,716,660,684]" italics="true" pageId="20" pageNumber="375">Brombya</emphasis>
</taxonomicName>
and
<taxonomicName id="ACEC4D7FE227FF97676FFD13EB99FD4B" box="[98,221,691,715]" class="Magnoliopsida" family="Rutaceae" genus="Medicosma" kingdom="Plantae" order="Sapindales" pageId="20" pageNumber="375" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE227FF97676FFD13EB99FD4B" bold="true" box="[98,221,691,715]" italics="true" pageId="20" pageNumber="375">Medicosma</emphasis>
</taxonomicName>
, and separated the genus from the rest of tribe
<taxonomicName id="ACEC4D7FE227FF97676FFD74EB8BFD6C" box="[98,207,724,748]" class="Magnoliopsida" family="Rutaceae" kingdom="Plantae" order="Sapindales" pageId="20" pageNumber="375" phylum="Tracheophyta" rank="tribe" tribe="Boronieae">Boronieae</taxonomicName>
on the basis of embryo shape and cotyledon width. Certain elements of the distinct morphology of
<taxonomicName id="ACEC4D7FE227FF976558FD54E9FBFC8C" box="[597,703,756,780]" class="Magnoliopsida" family="Rutaceae" genus="Myrtopsis" kingdom="Plantae" order="Sapindales" pageId="20" pageNumber="375" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE227FF976558FD54E9FBFC8C" bold="true" box="[597,703,756,780]" italics="true" pageId="20" pageNumber="375">Myrtopsis</emphasis>
</taxonomicName>
could be related to adaptation to New Caledonian habitats with nutrient-poor, ultramafic soils and comparatively higher temperatures and humidity than in the southern half of
<collectingCountry id="13FB766CE227FF976597FCF4E9BAFCEC" box="[666,766,852,876]" name="Australia" pageId="20" pageNumber="375">Australia</collectingCountry>
, where the majority of species in the
<taxonomicName id="ACEC4D7FE227FF9766E1FCD4E922FC0C" box="[492,614,884,908]" class="Magnoliopsida" family="Rutaceae" genus="Eriostemon" kingdom="Plantae" order="Sapindales" pageId="20" pageNumber="375" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE227FF9766E1FCD4E922FC0C" bold="true" box="[492,614,884,908]" italics="true" pageId="20" pageNumber="375">Eriostemon</emphasis>
</taxonomicName>
group occur.
</paragraph>
<paragraph id="6B5336FCE227FF97678FFC34E90EF92C" blockId="20.[98,770,180,1708]" pageId="20" pageNumber="375">
The presence of
<taxonomicName id="ACEC4D7FE227FF97663AFC34EAE5FC2C" box="[311,417,916,940]" class="Magnoliopsida" family="Rutaceae" genus="Myrtopsis" kingdom="Plantae" order="Sapindales" pageId="20" pageNumber="375" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE227FF97663AFC34EAE5FC2C" bold="true" box="[311,417,916,940]" italics="true" pageId="20" pageNumber="375">Myrtopsis</emphasis>
</taxonomicName>
only in
<collectingCountry id="13FB766CE227FF9766F3FC34E9E2FC2C" box="[510,678,916,940]" name="New Caledonia" pageId="20" pageNumber="375">New Caledonia</collectingCountry>
is interesting biogeographically. Evidence exists for possible land connections between
<collectingCountry id="13FB766CE227FF976658FC74EAFDFC6C" box="[341,441,980,1004]" name="Australia" pageId="20" pageNumber="375">Australia</collectingCountry>
and
<collectingCountry id="13FB766CE227FF9766F8FC74E9E4FC6C" box="[501,672,980,1004]" name="New Caledonia" pageId="20" pageNumber="375">New Caledonia</collectingCountry>
into the Paleocene and Eocene ~6035 million years ago (
<bibRefCitation id="0F7D4B0DE227FF9765A3FC54EA69FBAC" author="Ladiges PY &amp; Cantrill D" pageId="20" pageNumber="375" pagination="383 - 389" refId="ref21298" refString="Ladiges PY, Cantrill D (2007) New Caledonia-Australian connections: biogeographic patterns and geology. Australian Systematic Botany 20, 383 - 389. doi: 10.1071 / SB 07018" type="journal article" year="2007">Ladiges and Cantrill 2007</bibRefCitation>
), meaning that a vicariance explanation cannot be ruled out should the divergence of
<taxonomicName id="ACEC4D7FE227FF97659AFB94E845FBCC" box="[663,769,1076,1100]" class="Magnoliopsida" family="Rutaceae" genus="Myrtopsis" kingdom="Plantae" order="Sapindales" pageId="20" pageNumber="375" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE227FF97659AFB94E845FBCC" bold="true" box="[663,769,1076,1100]" italics="true" pageId="20" pageNumber="375">Myrtopsis</emphasis>
</taxonomicName>
pre-date this. Time-calibrated phylogenies have tentatively estimated the divergence of
<taxonomicName id="ACEC4D7FE227FF976691FBD4E942FB0C" box="[412,518,1140,1164]" class="Magnoliopsida" family="Rutaceae" genus="Myrtopsis" kingdom="Plantae" order="Sapindales" pageId="20" pageNumber="375" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE227FF976691FBD4E942FB0C" bold="true" box="[412,518,1140,1164]" italics="true" pageId="20" pageNumber="375">Myrtopsis</emphasis>
</taxonomicName>
from the Oligocene to the mid-Miocene ~3015 million years ago (
<bibRefCitation id="0F7D4B0DE227FF97657AFB34EBDFFB4C" author="Bayly MJ &amp; Holmes GD &amp; Forster PI &amp; Cantrill DJ &amp; Ladiges PY" pageId="20" pageNumber="375" pagination="72493" refId="ref19397" refString="Bayly MJ, Holmes GD, Forster PI, Cantrill DJ, Ladiges PY (2013) Major clades of Australasian Rutoideae (Rutaceae) based on rbcL and atpB sequences. PLoS One 8, e 72493. doi: 10.1371 / journal. pone. 0072493" type="journal article" year="2013">
Bayly
<emphasis id="5998EAEEE227FF9765C9FB34E845FB2B" bold="true" box="[708,769,1171,1195]" italics="true" pageId="20" pageNumber="375">et al.</emphasis>
2013
</bibRefCitation>
;
<bibRefCitation id="0F7D4B0DE227FF9767A4FB14EA2CFB4C" author="Joyce EM &amp; Appelhans MS &amp; Buerki S" box="[169,360,1204,1228]" pageId="20" pageNumber="375" pagination="1063174" refId="ref20987" refString="Joyce EM, Appelhans MS, Buerki S, et al. (2023) Phylogenomic analyses of Sapindales support new family relationships, rapid Mid-Cretaceous Hothouse diversification, and heterogeneous histories of gene duplication. Frontiers in Plant Science 14, 1063174. doi: 10.3389 / fpls. 2023.1063174" type="journal article" year="2023">
Joyce
<emphasis id="5998EAEEE227FF9767E2FB14EA62FB4C" bold="true" box="[239,294,1204,1228]" italics="true" pageId="20" pageNumber="375">et al.</emphasis>
2023
</bibRefCitation>
), implicating long-distance dispersal to
<collectingCountry id="13FB766CE227FF97678FFB75EA68FB6C" box="[130,300,1236,1260]" name="New Caledonia" pageId="20" pageNumber="375">New Caledonia</collectingCountry>
from
<collectingCountry id="13FB766CE227FF976678FB74EA9DFB6C" box="[373,473,1236,1260]" name="Australia" pageId="20" pageNumber="375">Australia</collectingCountry>
after re-emergence of the main island during the PaleoceneEocene (37 ± 3 million years ago;
<bibRefCitation id="0F7D4B0DE227FF9767D1FAB4EADEFAAC" author="Grandcolas P" box="[220,410,1300,1324]" pageId="20" pageNumber="375" pagination="481 - 487" refId="ref20355" refString="Grandcolas P (2017) Ten false ideas about New Caledonia biogeography. Cladistics 33, 481 - 487. doi: 10.1111 / cla. 12176" type="journal article" year="2017">Grandcolas 2017</bibRefCitation>
). This is in line with the crown ages of most New Caledonian clades across the tree of life (
<bibRefCitation id="0F7D4B0DE227FF976766FAF4EA70FAEC" author="Nattier R &amp; Pellens R &amp; Robillard T &amp; Jourdan H &amp; Legendre F &amp; Caesar M &amp; Nel A &amp; Grandcolas P" box="[107,308,1363,1388]" pageId="20" pageNumber="375" pagination="3705" refId="ref21680" refString="Nattier R, Pellens R, Robillard T, Jourdan H, Legendre F, Caesar M, Nel A, Grandcolas P (2017) Updating the phylogenetic dating of New Caledonian biodiversity with a meta-analysis of the available evidence. Scientific Reports 7, 3705. doi: 10.1038 / s 41598 - 017 - 02964 - x" type="journal article" year="2017">
Nattier
<emphasis id="5998EAEEE227FF9767B2FAF4EBB0FAEB" bold="true" box="[191,244,1363,1387]" italics="true" pageId="20" pageNumber="375">et al.</emphasis>
2017
</bibRefCitation>
). However,
<bibRefCitation id="0F7D4B0DE227FF9766B6FAF4E9C3FAEC" author="Bayly MJ &amp; Holmes GD &amp; Forster PI &amp; Cantrill DJ &amp; Ladiges PY" box="[443,647,1363,1388]" pageId="20" pageNumber="375" pagination="72493" refId="ref19397" refString="Bayly MJ, Holmes GD, Forster PI, Cantrill DJ, Ladiges PY (2013) Major clades of Australasian Rutoideae (Rutaceae) based on rbcL and atpB sequences. PLoS One 8, e 72493. doi: 10.1371 / journal. pone. 0072493" type="journal article" year="2013">
Bayly
<emphasis id="5998EAEEE227FF9766F2FAF4E971FAEB" bold="true" box="[511,565,1363,1387]" italics="true" pageId="20" pageNumber="375">et al.</emphasis>
(2013)
</bibRefCitation>
stated that their divergence-date estimates should be treated with caution because of a limited availability of fossils within
<taxonomicName id="ACEC4D7FE227FF97676FFA14EB83FA4B" box="[98,199,1460,1483]" class="Magnoliopsida" family="Rutaceae" kingdom="Plantae" order="Sapindales" pageId="20" pageNumber="375" phylum="Tracheophyta" rank="family">Rutaceae</taxonomicName>
for calibration; they highlighted that trial analyses conducted with fewer fossil calibrations had the effect of producing much younger age estimates. Hence, the divergence of
<taxonomicName id="ACEC4D7FE227FF9767C1F9B4EA72F9AC" box="[204,310,1556,1580]" class="Magnoliopsida" family="Rutaceae" genus="Myrtopsis" kingdom="Plantae" order="Sapindales" pageId="20" pageNumber="375" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE227FF9767C1F9B4EA72F9AC" bold="true" box="[204,310,1556,1580]" italics="true" pageId="20" pageNumber="375">Myrtopsis</emphasis>
</taxonomicName>
in that estimation may appear younger than it should, and a vicariance explanation for the split should not yet be discounted on the basis of the current understanding of phylogenetic relationships and lack of consensus from divergence-dating analyses.
</paragraph>
</subSubSection>
</treatment>
</document>

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<mods:title id="A9E4E27FFB265A7C0D082EBDE2B3F496">Plastid phylogenomics of the Eriostemon group (Rutaceae; Zanthoxyloideae): support for major clades and investigation of a backbone polytomy</mods:title>
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Investigation of the
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<emphasis id="5998EAEEE223FF93667AFDB1E94CFDAD" bold="true" box="[375,520,529,557]" italics="true" pageId="16" pageNumber="371">Eriostemon</emphasis>
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group polytomy
</emphasis>
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<paragraph id="6B5336FCE223FF93678FFDE1EAE5FDDD" blockId="16.[98,770,577,1308]" box="[130,417,577,605]" pageId="16" pageNumber="371">
<heading id="301B8190E223FF93678FFDE1EAE5FDDD" bold="true" box="[130,417,577,605]" fontSize="11" level="3" pageId="16" pageNumber="371" reason="9">
<emphasis id="5998EAEEE223FF93678FFDE1EAE5FDDD" bold="true" box="[130,417,577,605]" pageId="16" pageNumber="371">Analysis of tree space</emphasis>
</heading>
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Our approach identified the optimal number of gene tree clusters in our data as three. Cluster 1 contained 72 loci (33 protein-coding, 39 non-coding) with a mean length of 955 bp, and a mean number of parsimony-informative sites of 141. Cluster 2 contained 50 loci (21 protein-coding, 29 non-coding) with a mean length of 276 bp, and a mean number of parsimony-informative sites of 44. Cluster 3 contained 26 loci (17 protein-coding, 9 non-coding) with a mean length of 378 bp, and a mean number of parsimony-informative sites of 66. Re-estimating the phylogeny for each of the three clusters produced trees with no supported incongruence between, for both IQ-TREE (Supplementary
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) and ASTRAL phylogenies (see files under Data availability). RAxML gene trees from Clusters 1 and 2 were significantly longer than those in Cluster 3 (Dunns test; Bonferroni adjusted
<emphasis id="5998EAEEE223FF93664AFBE4EA11FBDB" bold="true" box="[327,341,1092,1115]" italics="true" pageId="16" pageNumber="371">
<collectionCode id="0DFDAE39E223FF93664AFBE4EA11FBDB" box="[327,341,1092,1115]" country="France" lsid="urn:lsid:biocol.org:col:15763" name="Museum National d' Histoire Naturelle, Paris (MNHN) - Vascular Plants" pageId="16" pageNumber="371" type="Herbarium">P</collectionCode>
</emphasis>
= 8.99 × 10
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and
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<collectionCode id="0DFDAE39E223FF93654CFBE4E90BFBDB" box="[577,591,1092,1115]" country="France" lsid="urn:lsid:biocol.org:col:15763" name="Museum National d' Histoire Naturelle, Paris (MNHN) - Vascular Plants" pageId="16" pageNumber="371" type="Herbarium">P</collectionCode>
</emphasis>
= 5.52 × 10
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respectively; Supplementary
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). Bootstrap support was significantly different among all clusters, with support values in Cluster 1 being markedly higher than those in Clusters 2 and 3 (Dunns test; Bonferroni adjusted
<emphasis id="5998EAEEE223FF93653BFB64E900FB5B" bold="true" box="[566,580,1220,1243]" italics="true" pageId="16" pageNumber="371">
<collectionCode id="0DFDAE39E223FF93653BFB64E900FB5B" box="[566,580,1220,1243]" country="France" lsid="urn:lsid:biocol.org:col:15763" name="Museum National d' Histoire Naturelle, Paris (MNHN) - Vascular Plants" pageId="16" pageNumber="371" type="Herbarium">P</collectionCode>
</emphasis>
= 2.97 × 10
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for
<collectionCode id="0DFDAE39E223FF936781FB44EBDBFB7C" box="[140,159,1252,1276]" country="Denmark" name="University of Copenhagen" pageId="16" pageNumber="371" type="Herbarium">C</collectionCode>
1
<collectionCode id="0DFDAE39E223FF9367BAFB44EB8EFB7C" box="[183,202,1252,1276]" country="Denmark" name="University of Copenhagen" pageId="16" pageNumber="371" type="Herbarium">C</collectionCode>
2,
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<collectionCode id="0DFDAE39E223FF9367EBFB44EBB0FB7B" box="[230,244,1252,1275]" country="France" lsid="urn:lsid:biocol.org:col:15763" name="Museum National d' Histoire Naturelle, Paris (MNHN) - Vascular Plants" pageId="16" pageNumber="371" type="Herbarium">P</collectionCode>
</emphasis>
= 2.31 × 10
<superScript id="9C999BB4E223FF936684FB40EAF5FB6E" attach="left" box="[393,433,1248,1262]" fontSize="6" pageId="16" pageNumber="371">21</superScript>
for
<collectionCode id="0DFDAE39E223FF9366EAFB44EABEFB7C" box="[487,506,1252,1276]" country="Denmark" name="University of Copenhagen" pageId="16" pageNumber="371" type="Herbarium">C</collectionCode>
1
<collectionCode id="0DFDAE39E223FF93651EFB44E962FB7C" box="[531,550,1252,1276]" country="Denmark" name="University of Copenhagen" pageId="16" pageNumber="371" type="Herbarium">C</collectionCode>
3,
<emphasis id="5998EAEEE223FF93654CFB44E90BFB7B" bold="true" box="[577,591,1252,1275]" italics="true" pageId="16" pageNumber="371">
<collectionCode id="0DFDAE39E223FF93654CFB44E90BFB7B" box="[577,591,1252,1275]" country="France" lsid="urn:lsid:biocol.org:col:15763" name="Museum National d' Histoire Naturelle, Paris (MNHN) - Vascular Plants" pageId="16" pageNumber="371" type="Herbarium">P</collectionCode>
</emphasis>
= 1.87 × 10
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for
<collectionCode id="0DFDAE39E223FF936787FAA4EBD8FA9C" box="[138,156,1284,1308]" country="Denmark" name="University of Copenhagen" pageId="16" pageNumber="371" type="Herbarium">C</collectionCode>
2
<collectionCode id="0DFDAE39E223FF9367BAFAA4EB8DFA9C" box="[183,201,1284,1308]" country="Denmark" name="University of Copenhagen" pageId="16" pageNumber="371" type="Herbarium">C</collectionCode>
3;
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).
</paragraph>
<paragraph id="6B5336FCE223FF93678FFAF1EAB6FAED" blockId="16.[98,770,1361,1932]" box="[130,498,1361,1389]" pageId="16" pageNumber="371">
<heading id="301B8190E223FF93678FFAF1EAB6FAED" bold="true" box="[130,498,1361,1389]" fontSize="11" level="3" pageId="16" pageNumber="371" reason="9">
<emphasis id="5998EAEEE223FF93678FFAF1EAB6FAED" bold="true" box="[130,498,1361,1389]" pageId="16" pageNumber="371">Likelihood-mapping analysis</emphasis>
</heading>
</paragraph>
<paragraph id="6B5336FCE223FF93678FFAD4EBA8F8AC" blockId="16.[98,770,1361,1932]" pageId="16" pageNumber="371">Across all loci, the mean percentage of fully resolved quartets (i.e. quartets falling into Regions 1, 2 and 3 of the likelihood-mapping plot) was 53%. The means for partly resolved quartets (Regions 4, 5 and 6) and unresolved quartets (Region 7) were 4 and 43% respectively. The subset of loci with&gt;50% fully resolved quartets contained 102 loci with a mean length of 851 bp, and a mean number of parsimony-informative sites of 140. The subset of loci with&gt;60% fully resolved quartets contained 63 loci with a mean length of 1056 bp, and a mean number of parsimony-informative sites of 178. The subset of loci with&gt;70% fully resolved quartets contained 22 loci with a mean length of 1490 bp, and a mean number of parsimony-informative sites of 302.</paragraph>
<paragraph id="6B5336FCE223FF93678FF894EE77FB4C" blockId="16.[98,770,1361,1932]" lastBlockId="16.[818,1490,532,1228]" pageId="16" pageNumber="371">
Phylogenetic analysis of each of the subsets resulted in trees with identical topologies that were congruent with the phylogeny produced in the analysis of the unpartitioned full dataset (i.e.
<figureCitation id="F3D72A79E223FF9364B2FDB4E8BBFDAC" box="[959,1023,532,556]" captionStart="Fig" captionStartId="15.[164,201,1832,1855]" captionTargetBox="[98,1490,140,1802]" captionTargetId="graphics-2@15.[164,1280,193,1718]" captionTargetPageId="15" captionText="Fig. 3. (Caption on next page)" pageId="16" pageNumber="371">Fig. 3</figureCitation>
). In general, all subset trees had slightly lower branch support than the full-dataset tree. Among subset trees, the&gt;70% tree had the lowest branch support, with exception to the placement of
<taxonomicName id="ACEC4D7FE223FF9363D9FDD4EE96FD0C" box="[1236,1490,628,652]" class="Magnoliopsida" family="Rutaceae" genus="Philotheca" kingdom="Plantae" order="Sapindales" pageId="16" pageNumber="371" phylum="Tracheophyta" rank="species" species="angustifolia">
<emphasis id="5998EAEEE223FF9363D9FDD4EE96FD0C" bold="true" box="[1236,1490,628,652]" italics="true" pageId="16" pageNumber="371">Philotheca angustifolia</emphasis>
</taxonomicName>
sister to
<taxonomicName id="ACEC4D7FE223FF93649CFD34EF64FD2C" authorityName="M. J. Bayly" authorityYear="1913" box="[913,1056,660,684]" class="Magnoliopsida" family="Rutaceae" genus="Philotheca" kingdom="Plantae" order="Sapindales" pageId="16" pageNumber="371" phylum="Tracheophyta" rank="species" species="tomentella">
<emphasis id="5998EAEEE223FF93649CFD34EF64FD2C" bold="true" box="[913,1056,660,684]" italics="true" pageId="16" pageNumber="371">P. tomentella</emphasis>
</taxonomicName>
and
<taxonomicName id="ACEC4D7FE223FF936355FD34EF93FD2C" box="[1112,1239,660,684]" class="Magnoliopsida" family="Rutaceae" genus="Philotheca" kingdom="Plantae" order="Sapindales" pageId="16" pageNumber="371" phylum="Tracheophyta" rank="species" species="difformis">
<emphasis id="5998EAEEE223FF936355FD34EF93FD2C" bold="true" box="[1112,1239,660,684]" italics="true" pageId="16" pageNumber="371">P. difformis</emphasis>
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with low-to-moderate support (UFBoot: 91; SH-aLRT: 82.9). The&gt;50 and&gt;60% trees did not resolve the position of this species. Despite the removal of potentially noisy or discordant loci, none of the subset trees contained a supported resolution for the backbone polytomy; the&gt;60% subset tree displayed the highest support for short branches of the polytomy, but these branches were still unsupported and resulted in star-like resolution of the polytomy in our network analysis (
<figureCitation id="F3D72A79E223FF936436FC14E8CDFC4C" box="[827,905,948,972]" captionStart="Fig" captionStartId="18.[203,240,1180,1203]" captionTargetBox="[130,1485,510,1165]" captionTargetId="graphics-1812@18.[586,1617,337,1258]" captionTargetPageId="18" captionText="Fig. 5. Results of the likelihood-mapping analysis of loci. (a) Plot of phylogenetic informativeness of individual loci, where a higher percentage of fully resolved quartets for a locus indicates greater support for tree-like evolution. Dashed lines on the plot indicate the three cut-off values that were tested for potentially improving phylogenetic resolution of the polytomy (i.e. 50, 60 and 70%). Bars along the x-axis denote the cluster that each locus was placed in during the analysis of tree space; some loci were excluded from the tree-space analysis, owing to incomplete representation of samples. (b) Phylogenetic network (NeighborNet) showing splits of the backbone polytomy; constructed from a concatenated alignment of all loci with&gt;60% of quartets fully resolved. For Crowea, EA, eastern Australia; WA, western Australia." pageId="16" pageNumber="371">
Fig. 5
<emphasis id="5998EAEEE223FF936470FC14E8CDFC4C" bold="true" box="[893,905,948,972]" italics="true" pageId="16" pageNumber="371">b</emphasis>
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). We found a significant difference in the number of resolved quartets between the three gene tree clusters from the tree space analysis (one-way
<collectionCode id="0DFDAE39E223FF93623BFC54EECAFB8C" box="[1334,1422,1012,1036]" pageId="16" pageNumber="371">ANOVA</collectionCode>
test;
<emphasis id="5998EAEEE223FF93643FFBB4E87BFBAB" bold="true" box="[818,831,1044,1067]" italics="true" pageId="16" pageNumber="371">
<collectionCode id="0DFDAE39E223FF93643FFBB4E87BFBAB" box="[818,831,1044,1067]" country="USA" lsid="urn:lsid:biocol.org:col:15707" name="Field Museum of Natural History, Botany Department" pageId="16" pageNumber="371" type="Herbarium">F</collectionCode>
</emphasis>
(2,145) = 18.82,
<emphasis id="5998EAEEE223FF936303FBB4EF58FBAB" bold="true" box="[1038,1052,1044,1067]" italics="true" pageId="16" pageNumber="371">
<collectionCode id="0DFDAE39E223FF936303FBB4EF58FBAB" box="[1038,1052,1044,1067]" country="France" lsid="urn:lsid:biocol.org:col:15763" name="Museum National d' Histoire Naturelle, Paris (MNHN) - Vascular Plants" pageId="16" pageNumber="371" type="Herbarium">P</collectionCode>
</emphasis>
= 5.39 × 10
<superScript id="9C999BB4E223FF9363BFFBB0EF94FB9E" attach="none" box="[1202,1232,1040,1054]" fontSize="6" pageId="16" pageNumber="371">8</superScript>
; Kruskal
<collectingCountry id="13FB766CE223FF936247FBB4EECAFBAC" box="[1354,1422,1044,1068]" name="United Kingdom" pageId="16" pageNumber="371">Wallis</collectingCountry>
rank sum test;
<emphasis id="5998EAEEE223FF9364A3FB94E884FBCB" bold="true" box="[942,960,1076,1099]" italics="true" pageId="16" pageNumber="371">
<collectionCode id="0DFDAE39E223FF9364A3FB94E884FBCB" box="[942,960,1076,1099]" country="Finland" lsid="urn:lsid:biocol.org:col:15618" name="University of Helsinki" pageId="16" pageNumber="371" type="Herbarium">H</collectionCode>
</emphasis>
= 40.437, d.f. = 2,
<emphasis id="5998EAEEE223FF9363BAFB94EF81FBCB" bold="true" box="[1207,1221,1076,1099]" italics="true" pageId="16" pageNumber="371">
<collectionCode id="0DFDAE39E223FF9363BAFB94EF81FBCB" box="[1207,1221,1076,1099]" country="France" lsid="urn:lsid:biocol.org:col:15763" name="Museum National d' Histoire Naturelle, Paris (MNHN) - Vascular Plants" pageId="16" pageNumber="371" type="Herbarium">P</collectionCode>
</emphasis>
= 1.657 × 10
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). The mean number of resolved quartets for Clusters 1, 2 and 3 was 3019 (
<emphasis id="5998EAEEE223FF9364BCFBD4E8FAFB0B" bold="true" box="[945,958,1140,1163]" italics="true" pageId="16" pageNumber="371">σ</emphasis>
= 586), 2434 (
<emphasis id="5998EAEEE223FF93637FFBD4EF3BFB0B" bold="true" box="[1138,1151,1140,1163]" italics="true" pageId="16" pageNumber="371">σ</emphasis>
= 541) and 2213 (
<emphasis id="5998EAEEE223FF936253FBD4EE2FFB0B" bold="true" box="[1374,1387,1140,1163]" italics="true" pageId="16" pageNumber="371">σ</emphasis>
= 1030) respectively, indicating that Cluster 1 contained the most phylogenetically informative loci on average.
</paragraph>
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<emphasis id="5998EAEEE223FF93645FFB51EF10FA8D" bold="true" box="[850,1108,1265,1293]" pageId="16" pageNumber="371">Tree topology tests</emphasis>
</heading>
</paragraph>
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Owing to high UFBoot and posterior probability support for four clades forming the backbone polytomy, our tree-topology testing investigated support for the 15 possible relationships among these clades (
<figureCitation id="F3D72A79E223FF9363C9FAD4EE50FA0B" box="[1220,1300,1396,1420]" captionStart="Fig" captionStartId="19.[311,348,1213,1236]" captionTargetBox="[198,1367,167,1182]" captionTargetId="graphics-304@19.[324,1275,284,732]" captionTargetPageId="19" captionText="Fig. 6. Results of topology tests for the backbone polytomy in the Eriostemon group. (a) The 15 possible resolutions of the polytomy (for the four supported clades) that testing was conducted on, ordered by most likely to least likely from left to right, top to bottom (note: the hard polytomy resolution is not depicted). (b) Plot of log likelihoods for each possible topology. The topology matching the most likely tree is denoted by a star, and the hard polytomy topology is denoted by a triangle." pageId="16" pageNumber="371">
Fig. 6
<emphasis id="5998EAEEE223FF93620AFAD4EE50FA0B" bold="true" box="[1287,1300,1396,1419]" italics="true" pageId="16" pageNumber="371">a</emphasis>
</figureCitation>
). Log-likelihood values for each topology ranged from 494 970.83 to 494 975.48. Expectedly, the topology of the most likely tree used as input was found to have the highest log-likelihood (494 970.83); this topology was identical to the 15th possible resolution of the polytomy (
<figureCitation id="F3D72A79E223FF93627DF9B4EE84F9AB" box="[1392,1472,1556,1580]" captionStart="Fig" captionStartId="19.[311,348,1213,1236]" captionTargetBox="[198,1367,167,1182]" captionTargetId="graphics-304@19.[324,1275,284,732]" captionTargetPageId="19" captionText="Fig. 6. Results of topology tests for the backbone polytomy in the Eriostemon group. (a) The 15 possible resolutions of the polytomy (for the four supported clades) that testing was conducted on, ordered by most likely to least likely from left to right, top to bottom (note: the hard polytomy resolution is not depicted). (b) Plot of log likelihoods for each possible topology. The topology matching the most likely tree is denoted by a star, and the hard polytomy topology is denoted by a triangle." pageId="16" pageNumber="371">
Fig. 6
<emphasis id="5998EAEEE223FF9362BEF9B4EE84F9AB" bold="true" box="[1459,1472,1556,1579]" italics="true" pageId="16" pageNumber="371">a</emphasis>
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). Five topologies were found to have slightly higher log-likelihoods than the others (
<figureCitation id="F3D72A79E223FF936376F9F4EF8DF9EC" box="[1147,1225,1620,1644]" captionStart="Fig" captionStartId="19.[311,348,1213,1236]" captionTargetBox="[198,1367,167,1182]" captionTargetId="graphics-304@19.[324,1275,284,732]" captionTargetPageId="19" captionText="Fig. 6. Results of topology tests for the backbone polytomy in the Eriostemon group. (a) The 15 possible resolutions of the polytomy (for the four supported clades) that testing was conducted on, ordered by most likely to least likely from left to right, top to bottom (note: the hard polytomy resolution is not depicted). (b) Plot of log likelihoods for each possible topology. The topology matching the most likely tree is denoted by a star, and the hard polytomy topology is denoted by a triangle." pageId="16" pageNumber="371">
Fig. 6
<emphasis id="5998EAEEE223FF9363B0F9F4EF8DF9EC" bold="true" box="[1213,1225,1620,1644]" italics="true" pageId="16" pageNumber="371">b</emphasis>
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: Topologies 15, 5, 10, 13, 14). The three most likely topologies (15, 5, 10) were the only topologies to resolve the Clade 1 sister to the rest of the group. Clades 1 and 2 were grouped sister to Clades 3 and
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Topology 13, and in Topology 14 Clade 2 was sister to the rest of the group, with Clade 1 being sister to Clades 3 and 4. The
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test rejected four topologies (
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</emphasis>
&lt;0.05): 7, 9, 12 and the hard polytomy. The hard polytomy was found to be one of the least likely topologies, having a low log-likelihood score (494 975.27) and being statistically supported by
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only the unweighted and weighted
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tests (
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</emphasis>
= 0.225 and
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<collectionCode id="0DFDAE39E221FF91676FFA14EB34FA4B" box="[98,112,1460,1483]" country="France" lsid="urn:lsid:biocol.org:col:15763" name="Museum National d' Histoire Naturelle, Paris (MNHN) - Vascular Plants" pageId="18" pageNumber="373" type="Herbarium">P</collectionCode>
</emphasis>
= 0.648), which did not reject any topologies (
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</emphasis>
-values greater than 0.05 for all topologies). The bootstrap proportion and equal likely weights test did not place the hard polytomy topology in the 95% confidence set of trees. Summary statistics from topology testing are provided as Supplementary Table
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.
</paragraph>
</subSubSection>
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<paragraph id="6B5336FCE222FF926794F8B4EA8FF8AB" blockId="17.[153,459,1811,1835]" box="[153,459,1811,1835]" pageId="17" pageNumber="372">
Fig. 4. (
<emphasis id="5998EAEEE222FF9267F0F8B3EA80F8AB" bold="true" box="[253,452,1811,1835]" italics="true" pageId="17" pageNumber="372">Caption on next page</emphasis>
)
</paragraph>
</caption>
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<paragraph id="6B5336FCE221FF91676FFF15E9AEFE1A" blockId="18.[98,1491,181,410]" pageId="18" pageNumber="373">
Fig. 4. Phylogenetic relationships in Clade 1. Maximum-likelihood phylogeny produced from IQ-TREE analysis of the supermatrix alignment of combined full plastome and Sanger sequences. UFboot support for branches is positioned above posterior probabilities from the MrBayes 50% majority-rule consensus tree of the same dataset. Relationships in other clades are identical to those in Fig. 3. Unsupported short branches in the backbone of the
<taxonomicName id="ACEC4D7FE221FF916641FEADEAF5FEA4" box="[332,433,269,292]" class="Magnoliopsida" family="Rutaceae" genus="Eriostemon" kingdom="Plantae" order="Sapindales" pageId="18" pageNumber="373" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE221FF916641FEADEAF5FEA4" bold="true" box="[332,433,269,292]" italics="true" pageId="18" pageNumber="373">Eriostemon</emphasis>
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group have been manually collapsed to a polytomy. Asterisks denote samples represented only by Sanger sequence data. The MrBayes and IQ-TREE phylogenies differed in the placement of
<taxonomicName id="ACEC4D7FE221FF9164CCFE8BEFC8FEC2" box="[961,1164,299,322]" class="Magnoliopsida" family="Rutaceae" genus="Philotheca" kingdom="Plantae" order="Sapindales" pageId="18" pageNumber="373" phylum="Tracheophyta" rank="species" species="angustifolia">
<emphasis id="5998EAEEE221FF9164CCFE8BEFC8FEC2" bold="true" box="[961,1164,299,322]" italics="true" pageId="18" pageNumber="373">Philotheca angustifolia</emphasis>
</taxonomicName>
; this incongruence is shown by red-dashed branches that indicate the topology recovered by MrBayes (posterior probability value relevant to this is in red). Black triangle,
<taxonomicName id="ACEC4D7FE221FF91676FFEC5EBF9FEFC" baseAuthorityName="Wilson" baseAuthorityYear="2013" box="[98,189,357,380]" class="Magnoliopsida" family="Rutaceae" genus="Philotheca" kingdom="Plantae" order="Sapindales" pageId="18" pageNumber="373" phylum="Tracheophyta" rank="genus" sensu="stricto">
<emphasis id="5998EAEEE221FF91676FFEC5EBF9FEFC" bold="true" box="[98,189,357,380]" italics="true" pageId="18" pageNumber="373">Philotheca</emphasis>
</taxonomicName>
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(largely equivalent to
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<emphasis id="5998EAEEE221FF9166D6FEC5E936FEFC" bold="true" box="[475,626,357,380]" italics="true" pageId="18" pageNumber="373">Philotheca sensu</emphasis>
<bibRefCitation id="0F7D4B0DE221FF916572FEC5E9BBFEFC" author="Wilson PG" box="[639,767,357,380]" pageId="18" pageNumber="373" pagination="197 - 207" refId="ref23086" refString="Wilson PG (1971) Taxonomic notes on the family Rutaceae, principally of Western Australia. Nuytsia 1, 197 - 207. doi: 10.58828 / nuy 00004" type="journal article" year="1971">Wilson 1971</bibRefCitation>
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); black square,
<emphasis id="5998EAEEE221FF9164AFFEC5EFC3FEFC" bold="true" box="[930,1159,357,380]" italics="true" pageId="18" pageNumber="373">
<taxonomicName id="ACEC4D7FE221FF9164AFFEC5E8B9FEFC" authorityName="sensu Wilson" authorityYear="1971" box="[930,1021,357,380]" class="Magnoliopsida" family="Rutaceae" genus="Philotheca" kingdom="Plantae" order="Sapindales" pageId="18" pageNumber="373" phylum="Tracheophyta" rank="genus">Philotheca</taxonomicName>
Nigrostipulae
</emphasis>
(largely equivalent to
<taxonomicName id="ACEC4D7FE221FF916260FEC5EAACFE1A" authority="sensu Wilson 1970" authorityName="sensu Wilson" authorityYear="1970" class="Magnoliopsida" family="Rutaceae" genus="Eriostemon" kingdom="Plantae" order="Sapindales" pageId="18" pageNumber="373" phylum="Tracheophyta" rank="section" section="Nigrostipulae">
<emphasis id="5998EAEEE221FF916260FEC5EE96FEFC" bold="true" box="[1389,1490,357,380]" italics="true" pageId="18" pageNumber="373">Eriostemon</emphasis>
section
<emphasis id="5998EAEEE221FF9167A2FE23EA24FE1A" bold="true" box="[175,352,387,410]" italics="true" pageId="18" pageNumber="373">Nigrostipulae sensu</emphasis>
<bibRefCitation id="0F7D4B0DE221FF916667FE23EAACFE1A" author="Wilson PG" box="[362,488,387,410]" pageId="18" pageNumber="373" pagination="3 - 155" refId="ref23053" refString="Wilson PG (1970) A taxonomic revision of the genera Crowea, Eriostemon and Phebalium (Rutaceae). Nuytsia 1, 3 - 155. doi: 10.58828 / nuy 00001" type="journal article" year="1970">Wilson 1970</bibRefCitation>
</taxonomicName>
), as discussed in the text.
</paragraph>
</caption>
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<paragraph id="6B5336FCE221FF9167C6FB3CEE03FAE3" blockId="18.[203,1385,1180,1379]" pageId="18" pageNumber="373">
Fig. 5. Results of the likelihood-mapping analysis of loci. (
<emphasis id="5998EAEEE221FF916405FB3CE857FB33" bold="true" box="[776,787,1180,1203]" italics="true" pageId="18" pageNumber="373">a</emphasis>
) Plot of phylogenetic informativeness of individual loci, where a higher percentage of fully resolved quartets for a locus indicates greater support for tree-like evolution. Dashed lines on the plot indicate the three cut-off values that were tested for potentially improving phylogenetic resolution of the polytomy (i.e. 50, 60 and 70%). Bars along the
<emphasis id="5998EAEEE221FF916586FB54E9D1FA8B" bold="true" box="[651,661,1268,1291]" italics="true" pageId="18" pageNumber="373">x</emphasis>
-axis denote the cluster that each locus was placed in during the analysis of tree space; some loci were excluded from the tree-space analysis, owing to incomplete representation of samples. (
<emphasis id="5998EAEEE221FF9167DEFA8FEB9AFAC6" bold="true" box="[211,222,1327,1350]" italics="true" pageId="18" pageNumber="373">b</emphasis>
) Phylogenetic network (NeighborNet) showing splits of the backbone polytomy; constructed from a concatenated alignment of all loci with&gt;60% of quartets fully resolved. For
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<emphasis id="5998EAEEE221FF91643DFAECE830FAE3" bold="true" box="[816,884,1356,1379]" italics="true" pageId="18" pageNumber="373">Crowea</emphasis>
, EA
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, eastern Australia; WA, western Australia.
</paragraph>
</caption>
<subSubSection id="23F66577E221FF90676FF91FE929F9EB" lastPageId="19" lastPageNumber="374" pageId="18" pageNumber="373" type="discussion">
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<emphasis id="5998EAEEE221FF91676FF91FEBBAF95D" bold="true" box="[98,254,1727,1757]" pageId="18" pageNumber="373">Discussion</emphasis>
</heading>
</paragraph>
<paragraph id="6B5336FCE221FF91676FF8A0E993F89D" blockId="18.[98,727,1792,1821]" box="[98,727,1792,1821]" pageId="18" pageNumber="373">
<heading id="301B8190E221FF91676FF8A0E993F89D" bold="true" box="[98,727,1792,1821]" fontSize="11" level="3" pageId="18" pageNumber="373" reason="9">
<emphasis id="5998EAEEE221FF91676FF8A0E993F89D" bold="true" box="[98,727,1792,1821]" pageId="18" pageNumber="373">
Generic relationships in the
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<emphasis id="5998EAEEE221FF9166E6F8A1E938F89D" bold="true" box="[491,636,1793,1821]" italics="true" pageId="18" pageNumber="373">Eriostemon</emphasis>
</taxonomicName>
group
</emphasis>
</heading>
</paragraph>
<paragraph id="6B5336FCE221FF90676FF894E929F9EB" blockId="18.[98,770,1844,1932]" lastBlockId="19.[98,770,1396,1644]" lastPageId="19" lastPageNumber="374" pageId="18" pageNumber="373">
The current study was conducted concurrently with a similar study by
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Duretto
<emphasis id="5998EAEEE221FF916653F8F4EADDF8EC" bold="true" box="[350,409,1876,1900]" italics="true" pageId="18" pageNumber="373">et al.</emphasis>
(2023)
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, who also investigated relationships in the
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<emphasis id="5998EAEEE221FF916649F8D4EAFAF80C" bold="true" box="[324,446,1908,1932]" italics="true" pageId="18" pageNumber="373">Eriostemon</emphasis>
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group.
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Duretto
<emphasis id="5998EAEEE221FF916578F8D4E9E8F80B" bold="true" box="[629,684,1907,1931]" italics="true" pageId="18" pageNumber="373">et al.</emphasis>
(2023)
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focussed primarily on relationships in the
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<emphasis id="5998EAEEE221FF916219FA34EEC3FA2C" bold="true" box="[1300,1415,1428,1452]" italics="true" pageId="18" pageNumber="373">Phebalium</emphasis>
</taxonomicName>
group (Clade 4
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in our analyses) and
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<emphasis id="5998EAEEE221FF91639CFA14EFBEFA4C" bold="true" box="[1169,1274,1460,1484]" italics="true" pageId="18" pageNumber="373">Leionema</emphasis>
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, sampling comprehensively across those genera by using five markers (5145 bp in total; plastid markers
<emphasis id="5998EAEEE221FF9163DAFA53EFBEF98B" bold="true" box="[1239,1274,1523,1547]" italics="true" pageId="18" pageNumber="373">psb</emphasis>
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<emphasis id="5998EAEEE221FF916201FA54EE7DF98B" bold="true" box="[1292,1337,1524,1547]" italics="true" pageId="18" pageNumber="373">trn</emphasis>
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,
<emphasis id="5998EAEEE221FF91626FFA54EEC6F98B" bold="true" box="[1378,1410,1524,1547]" italics="true" pageId="18" pageNumber="373">trn</emphasis>
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,
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; nrDNA markers
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). With their smaller genetic dataset but more thorough taxon sampling of the group, they confirmed the monophyly of
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<emphasis id="5998EAEEE221FF9163CAF9F3EE05F9EB" bold="true" box="[1223,1345,1619,1643]" italics="true" pageId="18" pageNumber="373">Asterolasia</emphasis>
</taxonomicName>
,
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<emphasis id="5998EAEEE221FF916259F9F3EE8EF9EB" bold="true" box="[1364,1482,1619,1643]" italics="true" pageId="18" pageNumber="373">Diplolaena</emphasis>
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,
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<emphasis id="5998EAEEE221FF91643FF9D4E8DFF90C" bold="true" box="[818,923,1652,1676]" italics="true" pageId="18" pageNumber="373">Leionema</emphasis>
</taxonomicName>
,
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<emphasis id="5998EAEEE221FF9164A4F9D3EF6BF90B" bold="true" box="[937,1071,1651,1675]" italics="true" pageId="18" pageNumber="373">Nematolepis</emphasis>
</taxonomicName>
and
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<emphasis id="5998EAEEE221FF916365F9D3EF9FF90B" bold="true" box="[1128,1243,1651,1675]" italics="true" pageId="18" pageNumber="373">Phebalium</emphasis>
(
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Duretto
<emphasis id="5998EAEEE221FF916244F9D4EEC4F90B" bold="true" box="[1353,1408,1651,1675]" italics="true" pageId="18" pageNumber="373">et al.</emphasis>
2023
</bibRefCitation>
)
</taxonomicName>
. This is congruent with our results, although our sampling of these genera is not appropriate for commenting on their monophyly. The results of our analyses are mostly congruent with those of
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Duretto
<emphasis id="5998EAEEE221FF91637CF954EFE9F88C" bold="true" box="[1137,1197,1780,1804]" italics="true" pageId="18" pageNumber="373">et al.</emphasis>
(2023)
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and support the taxonomic changes made by those authors, namely, the transfer of
<taxonomicName id="ACEC4D7FE221FF9164BDF893EF2DF8CB" box="[944,1129,1843,1867]" class="Magnoliopsida" family="Rutaceae" genus="Rhadinothamnus" kingdom="Plantae" order="Sapindales" pageId="18" pageNumber="373" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE221FF9164BDF893EF2DF8CB" bold="true" box="[944,1129,1843,1867]" italics="true" pageId="18" pageNumber="373">Rhadinothamnus</emphasis>
</taxonomicName>
(=
<taxonomicName id="ACEC4D7FE221FF91639BF894EE44F8CB" box="[1174,1280,1844,1868]" class="Magnoliopsida" family="Rutaceae" genus="Chorilaena" kingdom="Plantae" order="Sapindales" pageId="18" pageNumber="373" phylum="Tracheophyta" rank="species" species="anceps">
<emphasis id="5998EAEEE221FF91639BF894EE44F8CB" bold="true" box="[1174,1280,1844,1868]" italics="true" pageId="18" pageNumber="373">C. anceps</emphasis>
</taxonomicName>
and
<taxonomicName id="ACEC4D7FE221FF916230F894EE96F8CB" box="[1341,1490,1843,1868]" class="Magnoliopsida" family="Rutaceae" genus="Chorilaena" kingdom="Plantae" order="Sapindales" pageId="18" pageNumber="373" phylum="Tracheophyta" rank="species" species="euphemiae">
<emphasis id="5998EAEEE221FF916230F894EE96F8CB" bold="true" box="[1341,1490,1843,1868]" italics="true" pageId="18" pageNumber="373">C. euphemiae</emphasis>
</taxonomicName>
in our analyses) to
<taxonomicName id="ACEC4D7FE221FF916319F8F4EFC8F8EC" box="[1044,1164,1876,1900]" class="Magnoliopsida" family="Rutaceae" genus="Chorilaena" kingdom="Plantae" order="Sapindales" pageId="18" pageNumber="373" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE221FF916319F8F4EFC8F8EC" bold="true" box="[1044,1164,1876,1900]" italics="true" pageId="18" pageNumber="373">Chorilaena</emphasis>
</taxonomicName>
, and
<taxonomicName id="ACEC4D7FE221FF9163DFF8F4EE07F8EC" box="[1234,1347,1876,1900]" class="Magnoliopsida" family="Rutaceae" genus="Microcybe" kingdom="Plantae" order="Sapindales" pageId="18" pageNumber="373" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE221FF9163DFF8F4EE07F8EC" bold="true" box="[1234,1347,1876,1900]" italics="true" pageId="18" pageNumber="373">Microcybe</emphasis>
</taxonomicName>
(=
<taxonomicName id="ACEC4D7FE221FF91627DF8F4E83EF80B" authorityName="R. Butcher" authorityYear="1280" class="Magnoliopsida" family="Rutaceae" genus="Phebalium" kingdom="Plantae" order="Sapindales" pageId="18" pageNumber="373" phylum="Tracheophyta" rank="species" species="multiflorum">
<emphasis id="5998EAEEE221FF91627DF8F4E83EF80B" bold="true" italics="true" pageId="18" pageNumber="373">P. multiflorum</emphasis>
</taxonomicName>
in our analyses) to
<taxonomicName id="ACEC4D7FE221FF916379F8D3EFA3F80B" box="[1140,1255,1907,1931]" class="Magnoliopsida" family="Rutaceae" genus="Phebalium" kingdom="Plantae" order="Sapindales" pageId="18" pageNumber="373" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE221FF916379F8D3EFA3F80B" bold="true" box="[1140,1255,1907,1931]" italics="true" pageId="18" pageNumber="373">Phebalium</emphasis>
</taxonomicName>
. Our larger genetic dataset has further clarified relationships among some genera by providing maximal support for branches previously unresolved (&lt;0.95 PP in the ptDNA phylogeny of
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Duretto
<emphasis id="5998EAEEE220FF9067C8FA74EA45FA6C" bold="true" box="[197,257,1492,1516]" italics="true" pageId="19" pageNumber="374">et al.</emphasis>
2023
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; indicated on
<figureCitation id="F3D72A79E220FF9066F1FA74E906FA6C" box="[508,578,1492,1516]" captionStart="Fig" captionStartId="15.[164,201,1832,1855]" captionTargetBox="[98,1490,140,1802]" captionTargetId="graphics-2@15.[164,1280,193,1718]" captionTargetPageId="15" captionText="Fig. 3. (Caption on next page)" pageId="19" pageNumber="374">Fig. 3</figureCitation>
). The following sections discuss some relationships, supported here, that are noteworthy; relationships in the
<taxonomicName id="ACEC4D7FE220FF906534F9B3E9E8F9AB" box="[569,684,1555,1579]" class="Magnoliopsida" family="Rutaceae" genus="Phebalium" kingdom="Plantae" order="Sapindales" pageId="19" pageNumber="374" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE220FF906534F9B3E9E8F9AB" bold="true" box="[569,684,1555,1579]" italics="true" pageId="19" pageNumber="374">Phebalium</emphasis>
</taxonomicName>
group are not discussed here because they have already been thoroughly discussed by
<bibRefCitation id="0F7D4B0DE220FF906676F9F4E922F9EC" author="Duretto MF &amp; Heslewood MM &amp; Bayly MJ" box="[379,614,1619,1644]" pageId="19" pageNumber="374" pagination="107 - 142" refId="ref19961" refString="Duretto MF, Heslewood MM, Bayly MJ (2023) Generic and infrageneric limits of Phebalium and its allies (Rutaceae: Zanthoxyloideae). Australian Systematic Botany 36, 107 - 142. doi: 10.1071 / SB 22018" type="journal article" year="2023">
Duretto
<emphasis id="5998EAEEE220FF9066D4F9F4E955F9EB" bold="true" box="[473,529,1619,1643]" italics="true" pageId="19" pageNumber="374">et al.</emphasis>
(2023)
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.
</paragraph>
</subSubSection>
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@ -0,0 +1,399 @@
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Relationships of
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<emphasis id="5998EAEEE226FF966657FCCEEA99FC0A" bold="true" box="[346,477,878,906]" italics="true" pageId="21" pageNumber="376">Philotheca</emphasis>
section
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and
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The placement of
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section
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sister to
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in Clade 2 is consistent with the findings of
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Duretto
<emphasis id="5998EAEEE226FF9667B0FC54EBB7FB8C" bold="true" box="[189,243,1012,1036]" italics="true" pageId="21" pageNumber="376">et al.</emphasis>
(2023)
</bibRefCitation>
. These taxa are quite distinct from each other morphologically, and were speculatively thought to be allied to
<taxonomicName id="ACEC4D7FE226FF9667C6FB93EA7AFBCB" authorityName="sensu Wilson" authorityYear="1971" box="[203,318,1075,1099]" class="Magnoliopsida" family="Rutaceae" genus="Philotheca" kingdom="Plantae" order="Sapindales" pageId="21" pageNumber="376" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE226FF9667C6FB93EA7AFBCB" bold="true" box="[203,318,1075,1099]" italics="true" pageId="21" pageNumber="376">Philotheca</emphasis>
</taxonomicName>
(for
<emphasis id="5998EAEEE226FF966671FB94EAD6FBCB" bold="true" box="[380,402,1076,1099]" italics="true" pageId="21" pageNumber="376">
<collectionCode id="0DFDAE39E226FF966671FB94EACAFBCB" box="[380,398,1076,1099]" country="France" lsid="urn:lsid:biocol.org:col:15763" name="Museum National d' Histoire Naturelle, Paris (MNHN) - Vascular Plants" pageId="21" pageNumber="376" type="Herbarium">P</collectionCode>
.
</emphasis>
section
<taxonomicName id="ACEC4D7FE226FF9666FBFB93E9D1FBCB" baseAuthorityName="Bayly" baseAuthorityYear="2001" box="[502,661,1075,1099]" pageId="21" pageNumber="376" rank="section" section="Cyanochlamys">
<emphasis id="5998EAEEE226FF9666FBFB93E9D1FBCB" bold="true" box="[502,661,1075,1099]" italics="true" pageId="21" pageNumber="376">Cyanochlamys</emphasis>
</taxonomicName>
) and the
<taxonomicName id="ACEC4D7FE226FF96676FFBF4EB91FBEC" box="[98,213,1108,1132]" class="Magnoliopsida" family="Rutaceae" genus="Phebalium" kingdom="Plantae" order="Sapindales" pageId="21" pageNumber="376" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE226FF96676FFBF4EB91FBEC" bold="true" box="[98,213,1108,1132]" italics="true" pageId="21" pageNumber="376">Phebalium</emphasis>
</taxonomicName>
group (for
<taxonomicName id="ACEC4D7FE226FF96665FFBF4EA89FBEC" box="[338,461,1108,1132]" class="Magnoliopsida" family="Rutaceae" genus="Muiriantha" kingdom="Plantae" order="Sapindales" pageId="21" pageNumber="376" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE226FF96665FFBF4EA89FBEC" bold="true" box="[338,461,1108,1132]" italics="true" pageId="21" pageNumber="376">Muiriantha</emphasis>
</taxonomicName>
) on morphological grounds (
<bibRefCitation id="0F7D4B0DE226FF966766FBD4EBBEFB0C" author="Wilson PG" box="[107,250,1140,1164]" pageId="21" pageNumber="376" pagination="3 - 155" refId="ref23053" refString="Wilson PG (1970) A taxonomic revision of the genera Crowea, Eriostemon and Phebalium (Rutaceae). Nuytsia 1, 3 - 155. doi: 10.58828 / nuy 00001" type="journal article" year="1970">Wilson 1970</bibRefCitation>
). The only species of
<taxonomicName id="ACEC4D7FE226FF9666F5FBD4E937FB0C" box="[504,627,1140,1164]" class="Magnoliopsida" family="Rutaceae" genus="Muiriantha" kingdom="Plantae" order="Sapindales" pageId="21" pageNumber="376" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE226FF9666F5FBD4E937FB0C" bold="true" box="[504,627,1140,1164]" italics="true" pageId="21" pageNumber="376">Muiriantha</emphasis>
</taxonomicName>
,
<taxonomicName id="ACEC4D7FE226FF966589FBD4EA2BFB2C" authority="(F. Muell.) C. A. Gardner" authorityName="C. A. Gardner" baseAuthorityName="F. Muell." class="Magnoliopsida" family="Rutaceae" genus="Muiriantha" kingdom="Plantae" order="Sapindales" pageId="21" pageNumber="376" phylum="Tracheophyta" rank="species" species="hassellii">
<emphasis id="5998EAEEE226FF966589FBD4E845FB0C" bold="true" box="[644,769,1140,1164]" italics="true" pageId="21" pageNumber="376">M. hassellii</emphasis>
(F.Muell.) C.A.Gardner
</taxonomicName>
, and both species of
<emphasis id="5998EAEEE226FF966581FB34E9DEFB2B" bold="true" box="[652,666,1172,1195]" italics="true" pageId="21" pageNumber="376">
<collectionCode id="0DFDAE39E226FF966581FB34E9DEFB2B" box="[652,666,1172,1195]" country="France" lsid="urn:lsid:biocol.org:col:15763" name="Museum National d' Histoire Naturelle, Paris (MNHN) - Vascular Plants" pageId="21" pageNumber="376" type="Herbarium">P</collectionCode>
</emphasis>
. section
<taxonomicName id="ACEC4D7FE226FF96676FFB14EA45FB4C" baseAuthorityName="Bayly" baseAuthorityYear="2001" box="[98,257,1204,1228]" pageId="21" pageNumber="376" rank="section" section="Cyanochlamys">
<emphasis id="5998EAEEE226FF96676FFB14EA45FB4C" bold="true" box="[98,257,1204,1228]" italics="true" pageId="21" pageNumber="376">Cyanochlamys</emphasis>
</taxonomicName>
,
<taxonomicName id="ACEC4D7FE226FF966616FB14E981FB4C" authority="(A. Rich.) Paul G. Wilson" baseAuthorityName="A. Rich." box="[283,709,1204,1228]" class="Magnoliopsida" family="Rutaceae" genus="Philotheca" kingdom="Plantae" order="Sapindales" pageId="21" pageNumber="376" phylum="Tracheophyta" rank="species" species="spicata">
<emphasis id="5998EAEEE226FF966616FB14EAD5FB4C" bold="true" box="[283,401,1204,1228]" italics="true" pageId="21" pageNumber="376">P. spicata</emphasis>
(A.Rich.) Paul G.Wilson
</taxonomicName>
and
<taxonomicName id="ACEC4D7FE226FF96676FFB74EAB1FB6C" authority="(Lindl.) Paul G. Wilson" baseAuthorityName="Lindl." box="[98,501,1236,1260]" class="Magnoliopsida" family="Rutaceae" genus="Philotheca" kingdom="Plantae" order="Sapindales" pageId="21" pageNumber="376" phylum="Tracheophyta" rank="species" species="nodiflora">
<emphasis id="5998EAEEE226FF96676FFB74EBA3FB6C" bold="true" box="[98,231,1236,1260]" italics="true" pageId="21" pageNumber="376">P. nodiflora</emphasis>
(Lindl.) Paul G.Wilson
</taxonomicName>
, are endemic to south-western
<collectingCountry id="13FB766CE226FF9667C4FB54EA75FA8C" box="[201,305,1268,1292]" name="Australia" pageId="21" pageNumber="376">Australia</collectingCountry>
, so this relationship is geographically sensible.
<taxonomicName id="ACEC4D7FE226FF9667C2FAB4EAEBFAAC" box="[207,431,1300,1324]" class="Magnoliopsida" family="Rutaceae" genus="Muiriantha" kingdom="Plantae" order="Sapindales" pageId="21" pageNumber="376" phylum="Tracheophyta" rank="species" species="hassellii">
<emphasis id="5998EAEEE226FF9667C2FAB4EAEBFAAC" bold="true" box="[207,431,1300,1324]" italics="true" pageId="21" pageNumber="376">Muiriantha hassellii</emphasis>
</taxonomicName>
has pendulous flowers with imbricate yellowish-green petals that form an elongated tube (
<figureCitation id="F3D72A79E226FF9667A4FAF4EBBFFAEB" box="[169,251,1364,1388]" captionStart="Fig" captionStartId="22.[170,207,1649,1672]" captionTargetBox="[170,1418,185,1619]" captionTargetId="figure-66@22.[170,1418,185,1620]" captionTargetPageId="22" captionText="Fig. 7. Flowers, carpels (with pitted surfaces), and fasciculate stem hairs of Muiriantha and Philotheca section Cyanochlamys (voucher numbers indicated in brackets): (a, d, f) Muiriantha hassellii [MJB 2574, MELUD155083a], (b, e, h) Philotheca nodiflora subsp. lasiocalyx [b, e, MJB 108, MELU; h, MJB 1962, MELUD105840a], (c, f, i) Philotheca spicata [c, f, MJB 9, MELU; i, MJB 10, MELU]. Scale bars: 500 μm, in micrographs of carpels (inset close-up images of pits are not to scale), and 100 μm, in micrographs of hairs (arrows indicate fasciculate hairs in h, i that are obscured by other hairs)." pageId="21" pageNumber="376">
Fig. 7
<emphasis id="5998EAEEE226FF9667E3FAF4EBBFFAEB" bold="true" box="[238,251,1364,1387]" italics="true" pageId="21" pageNumber="376">a</emphasis>
</figureCitation>
), whereas the flowers of
<taxonomicName id="ACEC4D7FE226FF96653EFAF3EA45FA0C" class="Magnoliopsida" family="Rutaceae" genus="Philotheca" kingdom="Plantae" order="Sapindales" pageId="21" pageNumber="376" phylum="Tracheophyta" rank="section" section="Cyanochlamys">
<emphasis id="5998EAEEE226FF96653EFAF3E9E2FAEB" bold="true" box="[563,678,1363,1387]" italics="true" pageId="21" pageNumber="376">Philotheca</emphasis>
section
<emphasis id="5998EAEEE226FF96676FFAD4EA45FA0C" bold="true" box="[98,257,1396,1420]" italics="true" pageId="21" pageNumber="376">Cyanochlamys</emphasis>
</taxonomicName>
are borne erectly, with petals spreading and ranging from pink to blue in colour (
<figureCitation id="F3D72A79E226FF96650AFA34E92BFA2B" box="[519,623,1428,1452]" captionStart="Fig" captionStartId="22.[170,207,1649,1672]" captionTargetBox="[170,1418,185,1619]" captionTargetId="figure-66@22.[170,1418,185,1620]" captionTargetPageId="22" captionText="Fig. 7. Flowers, carpels (with pitted surfaces), and fasciculate stem hairs of Muiriantha and Philotheca section Cyanochlamys (voucher numbers indicated in brackets): (a, d, f) Muiriantha hassellii [MJB 2574, MELUD155083a], (b, e, h) Philotheca nodiflora subsp. lasiocalyx [b, e, MJB 108, MELU; h, MJB 1962, MELUD105840a], (c, f, i) Philotheca spicata [c, f, MJB 9, MELU; i, MJB 10, MELU]. Scale bars: 500 μm, in micrographs of carpels (inset close-up images of pits are not to scale), and 100 μm, in micrographs of hairs (arrows indicate fasciculate hairs in h, i that are obscured by other hairs)." pageId="21" pageNumber="376">
Fig. 7
<emphasis id="5998EAEEE226FF966545FA34E910FA2C" bold="true" box="[584,596,1428,1452]" italics="true" pageId="21" pageNumber="376">b</emphasis>
,
<emphasis id="5998EAEEE226FF966569FA34E92BFA2B" bold="true" box="[612,623,1428,1451]" italics="true" pageId="21" pageNumber="376">c</emphasis>
</figureCitation>
).
</paragraph>
<paragraph id="6B5336FCE226FF96678FFA14E9C6F8AC" blockId="21.[98,770,878,1932]" pageId="21" pageNumber="376">
On the basis of
<bibRefCitation id="0F7D4B0DE226FF96664BFA14E97AFA4C" author="Duretto MF &amp; Heslewood MM &amp; Bayly MJ" box="[326,574,1459,1484]" pageId="21" pageNumber="376" pagination="107 - 142" refId="ref19961" refString="Duretto MF, Heslewood MM, Bayly MJ (2023) Generic and infrageneric limits of Phebalium and its allies (Rutaceae: Zanthoxyloideae). Australian Systematic Botany 36, 107 - 142. doi: 10.1071 / SB 22018" type="journal article" year="2023">
Duretto
<emphasis id="5998EAEEE226FF9666A5FA14EAA1FA4B" bold="true" box="[424,485,1459,1483]" italics="true" pageId="21" pageNumber="376">et al.</emphasis>
(2023)
</bibRefCitation>
and our nrDNA analyses (see the Supplementary Methods and results section), it is apparent that the close relationship of
<taxonomicName id="ACEC4D7FE226FF96676FF9B3EA97F9AB" box="[98,467,1555,1580]" class="Magnoliopsida" family="Rutaceae" genus="Philotheca" kingdom="Plantae" order="Sapindales" pageId="21" pageNumber="376" phylum="Tracheophyta" rank="section" section="Cyanochlamys">
<emphasis id="5998EAEEE226FF96676FF9B3EB91F9AB" bold="true" box="[98,213,1555,1579]" italics="true" pageId="21" pageNumber="376">Philotheca</emphasis>
section
<emphasis id="5998EAEEE226FF966639F9B3EA97F9AB" bold="true" box="[308,467,1555,1579]" italics="true" pageId="21" pageNumber="376">Cyanochlamys</emphasis>
</taxonomicName>
and
<taxonomicName id="ACEC4D7FE226FF966502F9B3E9CEF9AB" box="[527,650,1555,1579]" class="Magnoliopsida" family="Rutaceae" genus="Muiriantha" kingdom="Plantae" order="Sapindales" pageId="21" pageNumber="376" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE226FF966502F9B3E9CEF9AB" bold="true" box="[527,650,1555,1579]" italics="true" pageId="21" pageNumber="376">Muiriantha</emphasis>
</taxonomicName>
is consistent across nrDNA and ptDNA. However, in contrast to our ptDNA results, our analyses of nrDNA resolved
<taxonomicName id="ACEC4D7FE226FF96658BF9F4E845F9EC" box="[646,769,1620,1644]" class="Magnoliopsida" family="Rutaceae" genus="Muiriantha" kingdom="Plantae" order="Sapindales" pageId="21" pageNumber="376" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE226FF96658BF9F4E845F9EC" bold="true" box="[646,769,1620,1644]" italics="true" pageId="21" pageNumber="376">Muiriantha</emphasis>
</taxonomicName>
nested inside
<emphasis id="5998EAEEE226FF9667F0F9D4EA57F90B" bold="true" box="[253,275,1652,1675]" italics="true" pageId="21" pageNumber="376">
<collectionCode id="0DFDAE39E226FF9667F0F9D4EA4BF90B" box="[253,271,1652,1675]" country="France" lsid="urn:lsid:biocol.org:col:15763" name="Museum National d' Histoire Naturelle, Paris (MNHN) - Vascular Plants" pageId="21" pageNumber="376" type="Herbarium">P</collectionCode>
.
</emphasis>
section
<taxonomicName id="ACEC4D7FE226FF966679F9D3E957F90B" baseAuthorityName="Bayly" baseAuthorityYear="2001" box="[372,531,1651,1675]" pageId="21" pageNumber="376" rank="section" section="Cyanochlamys">
<emphasis id="5998EAEEE226FF966679F9D3E957F90B" bold="true" box="[372,531,1651,1675]" italics="true" pageId="21" pageNumber="376">Cyanochlamys</emphasis>
</taxonomicName>
, with very high support (see the Supplementary Methods and results section).
<bibRefCitation id="0F7D4B0DE226FF96676FF915EA1DF94C" author="Duretto MF &amp; Heslewood MM &amp; Bayly MJ" box="[98,345,1716,1740]" pageId="21" pageNumber="376" pagination="107 - 142" refId="ref19961" refString="Duretto MF, Heslewood MM, Bayly MJ (2023) Generic and infrageneric limits of Phebalium and its allies (Rutaceae: Zanthoxyloideae). Australian Systematic Botany 36, 107 - 142. doi: 10.1071 / SB 22018" type="journal article" year="2023">
Duretto
<emphasis id="5998EAEEE226FF9667C9F914EA44F94C" bold="true" box="[196,256,1716,1740]" italics="true" pageId="21" pageNumber="376">et al.</emphasis>
(2023)
</bibRefCitation>
found the same discrepancy in the position of
<taxonomicName id="ACEC4D7FE226FF9667EDF973EA1FF96B" box="[224,347,1747,1771]" class="Magnoliopsida" family="Rutaceae" genus="Muiriantha" kingdom="Plantae" order="Sapindales" pageId="21" pageNumber="376" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE226FF9667EDF973EA1FF96B" bold="true" box="[224,347,1747,1771]" italics="true" pageId="21" pageNumber="376">Muiriantha</emphasis>
</taxonomicName>
between ptDNA and nrDNA datasets, but the nesting of
<taxonomicName id="ACEC4D7FE226FF966622F954EAEEF88C" box="[303,426,1780,1804]" class="Magnoliopsida" family="Rutaceae" genus="Muiriantha" kingdom="Plantae" order="Sapindales" pageId="21" pageNumber="376" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE226FF966622F954EAEEF88C" bold="true" box="[303,426,1780,1804]" italics="true" pageId="21" pageNumber="376">Muiriantha</emphasis>
</taxonomicName>
in
<emphasis id="5998EAEEE226FF9666DDF954EAA2F88B" bold="true" box="[464,486,1780,1803]" italics="true" pageId="21" pageNumber="376">
<collectionCode id="0DFDAE39E226FF9666DDF954EAA6F88B" box="[464,482,1780,1803]" country="France" lsid="urn:lsid:biocol.org:col:15763" name="Museum National d' Histoire Naturelle, Paris (MNHN) - Vascular Plants" pageId="21" pageNumber="376" type="Herbarium">P</collectionCode>
.
</emphasis>
section
<taxonomicName id="ACEC4D7FE226FF966549F954E9A7F88C" baseAuthorityName="Bayly" baseAuthorityYear="2001" box="[580,739,1780,1804]" pageId="21" pageNumber="376" rank="section" section="Cyanochlamys">
<emphasis id="5998EAEEE226FF966549F954E9A7F88C" bold="true" box="[580,739,1780,1804]" italics="true" pageId="21" pageNumber="376">Cyanochlamys</emphasis>
</taxonomicName>
in their nrDNA phylogeny was not well supported.
</paragraph>
<paragraph id="6B5336FCE226FF96678FF894EE50FE8C" blockId="21.[98,770,878,1932]" lastBlockId="21.[818,1490,180,1452]" pageId="21" pageNumber="376">
Despite obvious morphological differences between
<taxonomicName id="ACEC4D7FE226FF96676FF8F4EA93F8EC" box="[98,471,1876,1900]" class="Magnoliopsida" family="Rutaceae" genus="Philotheca" kingdom="Plantae" order="Sapindales" pageId="21" pageNumber="376" phylum="Tracheophyta" rank="section" section="Cyanochlamys">
<emphasis id="5998EAEEE226FF96676FF8F4EB91F8EC" bold="true" box="[98,213,1876,1900]" italics="true" pageId="21" pageNumber="376">Philotheca</emphasis>
section
<emphasis id="5998EAEEE226FF966635F8F4EA93F8EC" bold="true" box="[312,471,1876,1900]" italics="true" pageId="21" pageNumber="376">Cyanochlamys</emphasis>
</taxonomicName>
and
<taxonomicName id="ACEC4D7FE226FF96651BF8F4E9D5F8EC" box="[534,657,1876,1900]" class="Magnoliopsida" family="Rutaceae" genus="Muiriantha" kingdom="Plantae" order="Sapindales" pageId="21" pageNumber="376" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE226FF96651BF8F4E9D5F8EC" bold="true" box="[534,657,1876,1900]" italics="true" pageId="21" pageNumber="376">Muiriantha</emphasis>
</taxonomicName>
, they are broadly similar in having a subshrub habit and leaves with a somewhat papery texture. Further morphological examination by the authors has also shown similarities in carpel surfaces and branchlet indumenta (
<figureCitation id="F3D72A79E226FF9663CEFF54EE47FE8B" box="[1219,1283,244,268]" captionStart="Fig" captionStartId="22.[170,207,1649,1672]" captionTargetBox="[170,1418,185,1619]" captionTargetId="figure-66@22.[170,1418,185,1620]" captionTargetPageId="22" captionText="Fig. 7. Flowers, carpels (with pitted surfaces), and fasciculate stem hairs of Muiriantha and Philotheca section Cyanochlamys (voucher numbers indicated in brackets): (a, d, f) Muiriantha hassellii [MJB 2574, MELUD155083a], (b, e, h) Philotheca nodiflora subsp. lasiocalyx [b, e, MJB 108, MELU; h, MJB 1962, MELUD105840a], (c, f, i) Philotheca spicata [c, f, MJB 9, MELU; i, MJB 10, MELU]. Scale bars: 500 μm, in micrographs of carpels (inset close-up images of pits are not to scale), and 100 μm, in micrographs of hairs (arrows indicate fasciculate hairs in h, i that are obscured by other hairs)." pageId="21" pageNumber="376">Fig. 7</figureCitation>
).
</paragraph>
<paragraph id="6B5336FCE226FF96645FFEB5EF9BFE6D" blockId="21.[818,1490,180,1452]" pageId="21" pageNumber="376">
In
<taxonomicName id="ACEC4D7FE226FF96647FFEB4E8A9FEAC" ID-CoL="5VLR" box="[882,1005,276,300]" class="Magnoliopsida" family="Rutaceae" genus="Muiriantha" kingdom="Plantae" order="Sapindales" pageId="21" pageNumber="376" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE226FF96647FFEB4E8A9FEAC" bold="true" box="[882,1005,276,300]" italics="true" pageId="21" pageNumber="376">Muiriantha</emphasis>
</taxonomicName>
and
<emphasis id="5998EAEEE226FF966326FEB4EF04FEAB" bold="true" box="[1067,1088,276,299]" italics="true" pageId="21" pageNumber="376">
<collectionCode id="0DFDAE39E226FF966326FEB4EF79FEAB" box="[1067,1085,276,299]" country="France" lsid="urn:lsid:biocol.org:col:15763" name="Museum National d' Histoire Naturelle, Paris (MNHN) - Vascular Plants" pageId="21" pageNumber="376" type="Herbarium">P</collectionCode>
.
</emphasis>
section
<taxonomicName id="ACEC4D7FE226FF9663AEFEB4EE06FEAC" baseAuthorityName="Bayly" baseAuthorityYear="2001" box="[1187,1346,276,300]" pageId="21" pageNumber="376" rank="section" section="Cyanochlamys">
<emphasis id="5998EAEEE226FF9663AEFEB4EE06FEAC" bold="true" box="[1187,1346,276,300]" italics="true" pageId="21" pageNumber="376">Cyanochlamys</emphasis>
</taxonomicName>
, the abaxial surface of the carpels is conspicuously pitted with small glands (
<bibRefCitation id="0F7D4B0DE226FF96649DFEF4EF51FEEC" author="Bayly MJ" box="[912,1045,340,364]" pageId="21" pageNumber="376" refId="ref19349" refString="Bayly MJ (2001) A cladistic and biogeographic analysis of Philotheca (Rutaceae) and allied genera. PhD thesis, The University of Melbourne, Melbourne, Vic., Australia. Available at http: // hdl. handle. net / 11343 / 37369" type="url" year="2001">Bayly 2001</bibRefCitation>
;
<figureCitation id="F3D72A79E226FF966324FEF4EFD4FEEC" box="[1065,1168,340,364]" captionStart="Fig" captionStartId="22.[170,207,1649,1672]" captionTargetBox="[170,1418,185,1619]" captionTargetId="figure-66@22.[170,1418,185,1620]" captionTargetPageId="22" captionText="Fig. 7. Flowers, carpels (with pitted surfaces), and fasciculate stem hairs of Muiriantha and Philotheca section Cyanochlamys (voucher numbers indicated in brackets): (a, d, f) Muiriantha hassellii [MJB 2574, MELUD155083a], (b, e, h) Philotheca nodiflora subsp. lasiocalyx [b, e, MJB 108, MELU; h, MJB 1962, MELUD105840a], (c, f, i) Philotheca spicata [c, f, MJB 9, MELU; i, MJB 10, MELU]. Scale bars: 500 μm, in micrographs of carpels (inset close-up images of pits are not to scale), and 100 μm, in micrographs of hairs (arrows indicate fasciculate hairs in h, i that are obscured by other hairs)." pageId="21" pageNumber="376">
Fig. 7
<emphasis id="5998EAEEE226FF966360FEF4EFD4FEEC" bold="true" box="[1133,1168,340,364]" italics="true" pageId="21" pageNumber="376">df</emphasis>
</figureCitation>
). This feature is otherwise known only in
<taxonomicName id="ACEC4D7FE226FF9664E3FED4EF8CFE0C" ID-CoL="4GDDP" box="[1006,1224,372,396]" class="Magnoliopsida" family="Rutaceae" genus="Philotheca" kingdom="Plantae" order="Sapindales" pageId="21" pageNumber="376" phylum="Tracheophyta" rank="species" species="pinoides">
<emphasis id="5998EAEEE226FF9664E3FED4EF8CFE0C" bold="true" box="[1006,1224,372,396]" italics="true" pageId="21" pageNumber="376">Philotheca pinoides</emphasis>
</taxonomicName>
(section
<taxonomicName id="ACEC4D7FE226FF966230FED4EE8CFE0C" box="[1341,1480,372,396]" pageId="21" pageNumber="376" rank="section" section="Corynonema">
<emphasis id="5998EAEEE226FF966230FED4EE8CFE0C" bold="true" box="[1341,1480,372,396]" italics="true" pageId="21" pageNumber="376">Corynonema</emphasis>
</taxonomicName>
) (
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) and is, therefore, considered apomorphic for
<taxonomicName id="ACEC4D7FE226FF96643FFE14E8E9FE4C" ID-CoL="5VLR" box="[818,941,436,460]" class="Magnoliopsida" family="Rutaceae" genus="Muiriantha" kingdom="Plantae" order="Sapindales" pageId="21" pageNumber="376" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE226FF96643FFE14E8E9FE4C" bold="true" box="[818,941,436,460]" italics="true" pageId="21" pageNumber="376">Muiriantha</emphasis>
</taxonomicName>
and section
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<emphasis id="5998EAEEE226FF96635EFE14EFB6FE4C" bold="true" box="[1107,1266,436,460]" italics="true" pageId="21" pageNumber="376">Cyanochlamys</emphasis>
</taxonomicName>
in the context of major clades of the
<taxonomicName id="ACEC4D7FE226FF966319FE74EFCAFE6C" ID-CoL="633NG" box="[1044,1166,468,492]" class="Magnoliopsida" family="Rutaceae" genus="Eriostemon" kingdom="Plantae" order="Sapindales" pageId="21" pageNumber="376" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE226FF966319FE74EFCAFE6C" bold="true" box="[1044,1166,468,492]" italics="true" pageId="21" pageNumber="376">Eriostemon</emphasis>
</taxonomicName>
group.
</paragraph>
<paragraph id="6B5336FCE226FF96645FFE54EFBEFB8C" blockId="21.[818,1490,180,1452]" pageId="21" pageNumber="376">
In
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<emphasis id="5998EAEEE226FF966462FE53E8A6FD8B" bold="true" box="[879,994,499,523]" italics="true" pageId="21" pageNumber="376">Philotheca</emphasis>
section
<emphasis id="5998EAEEE226FF966332FE53EF9AFD8B" bold="true" box="[1087,1246,499,523]" italics="true" pageId="21" pageNumber="376">Cyanochlamys</emphasis>
</taxonomicName>
,
<specimenCount id="7DEAFD75E226FF9663E1FE54EE1DFD8C" box="[1260,1369,500,524]" count="2" pageId="21" pageNumber="376" type="generic" typeStatus="types">two types</specimenCount>
of branchlet hairs are found (
<bibRefCitation id="0F7D4B0DE226FF966321FDB4EFF4FDAC" author="Bayly MJ" box="[1068,1200,532,556]" pageId="21" pageNumber="376" refId="ref19349" refString="Bayly MJ (2001) A cladistic and biogeographic analysis of Philotheca (Rutaceae) and allied genera. PhD thesis, The University of Melbourne, Melbourne, Vic., Australia. Available at http: // hdl. handle. net / 11343 / 37369" type="url" year="2001">Bayly 2001</bibRefCitation>
). The first
<typeStatus id="B457885EE226FF96624EFDB4EE36FDAC" box="[1347,1394,532,556]" pageId="21" pageNumber="376">type</typeStatus>
is long (~
<quantity id="AC149B19E226FF966447FD94E8E2FDCC" box="[842,934,564,588]" metricMagnitude="-4" metricUnit="m" metricValue="6.0" pageId="21" pageNumber="376" unit="mm" value="0.6">0.6 mm</quantity>
), silky, distally ascending and somewhat appressed, and is fasciculate (having multiple hairs arising from a single base) but not spreading; these hairs are always present in
<taxonomicName id="ACEC4D7FE226FF96643FFD34E8FDFD2C" ID-CoL="4GDDH" box="[818,953,660,684]" class="Magnoliopsida" family="Rutaceae" genus="Philotheca" kingdom="Plantae" order="Sapindales" pageId="21" pageNumber="376" phylum="Tracheophyta" rank="species" species="nodiflora">
<emphasis id="5998EAEEE226FF96643FFD34E8FDFD2C" bold="true" box="[818,953,660,684]" italics="true" pageId="21" pageNumber="376">P. nodiflora</emphasis>
</taxonomicName>
, and are sometimes absent in
<taxonomicName id="ACEC4D7FE226FF966228FD34EED1FD2C" ID-CoL="4GDDZ" box="[1317,1429,660,684]" class="Magnoliopsida" family="Rutaceae" genus="Philotheca" kingdom="Plantae" order="Sapindales" pageId="21" pageNumber="376" phylum="Tracheophyta" rank="species" species="spicata">
<emphasis id="5998EAEEE226FF966228FD34EED1FD2C" bold="true" box="[1317,1429,660,684]" italics="true" pageId="21" pageNumber="376">P. spicata</emphasis>
</taxonomicName>
. The second
<typeStatus id="B457885EE226FF966489FD14E8F7FD4C" box="[900,947,692,716]" pageId="21" pageNumber="376">type</typeStatus>
is fasciculatestellate, with multiple hairs arising from a single base that spread out in a stellate manner, and occurs in both species of
<emphasis id="5998EAEEE226FF96636DFD54EF32FC8B" bold="true" box="[1120,1142,756,779]" italics="true" pageId="21" pageNumber="376">
<collectionCode id="0DFDAE39E226FF96636DFD54EF36FC8B" box="[1120,1138,756,779]" country="France" lsid="urn:lsid:biocol.org:col:15763" name="Museum National d' Histoire Naturelle, Paris (MNHN) - Vascular Plants" pageId="21" pageNumber="376" type="Herbarium">P</collectionCode>
.
</emphasis>
section
<taxonomicName id="ACEC4D7FE226FF9663D3FD54E833FCAC" authority="(Bayly 2001)" baseAuthorityName="Bayly" baseAuthorityYear="2001" pageId="21" pageNumber="376" rank="section" section="Cyanochlamys">
<emphasis id="5998EAEEE226FF9663D3FD54EE39FC8C" bold="true" box="[1246,1405,756,780]" italics="true" pageId="21" pageNumber="376">Cyanochlamys</emphasis>
(
<bibRefCitation id="0F7D4B0DE226FF96629EFD54E82FFCAC" author="Bayly MJ" pageId="21" pageNumber="376" refId="ref19349" refString="Bayly MJ (2001) A cladistic and biogeographic analysis of Philotheca (Rutaceae) and allied genera. PhD thesis, The University of Melbourne, Melbourne, Vic., Australia. Available at http: // hdl. handle. net / 11343 / 37369" type="url" year="2001">Bayly 2001</bibRefCitation>
)
</taxonomicName>
.
<taxonomicName id="ACEC4D7FE226FF96648FFCB3E8B9FCAB" ID-CoL="5VLR" box="[898,1021,787,811]" class="Magnoliopsida" family="Rutaceae" genus="Muiriantha" kingdom="Plantae" order="Sapindales" pageId="21" pageNumber="376" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE226FF96648FFCB3E8B9FCAB" bold="true" box="[898,1021,787,811]" italics="true" pageId="21" pageNumber="376">Muiriantha</emphasis>
</taxonomicName>
also possesses
<specimenCount id="7DEAFD75E226FF9663ABFCB4EE56FCAC" box="[1190,1298,788,812]" count="2" pageId="21" pageNumber="376" type="generic" typeStatus="types">two types</specimenCount>
of hairs; the first is similar to the long, silky, appressed hairs of
<emphasis id="5998EAEEE226FF96626CFC94EE33FCCB" bold="true" box="[1377,1399,820,843]" italics="true" pageId="21" pageNumber="376">
<collectionCode id="0DFDAE39E226FF96626CFC94EE37FCCB" box="[1377,1395,820,843]" country="France" lsid="urn:lsid:biocol.org:col:15763" name="Museum National d' Histoire Naturelle, Paris (MNHN) - Vascular Plants" pageId="21" pageNumber="376" type="Herbarium">P</collectionCode>
.
</emphasis>
section
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<emphasis id="5998EAEEE226FF96643FFCF4E895FCEC" bold="true" box="[818,977,852,876]" italics="true" pageId="21" pageNumber="376">Cyanochlamys</emphasis>
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, but differs in being singular (i.e. one hair, not multiple from a single base), the second is fasciculate hairs that are the same as those of
<emphasis id="5998EAEEE226FF9663BAFC34EF89FC2B" bold="true" box="[1207,1229,916,939]" italics="true" pageId="21" pageNumber="376">
<collectionCode id="0DFDAE39E226FF9663BAFC34EF8DFC2B" box="[1207,1225,916,939]" country="France" lsid="urn:lsid:biocol.org:col:15763" name="Museum National d' Histoire Naturelle, Paris (MNHN) - Vascular Plants" pageId="21" pageNumber="376" type="Herbarium">P</collectionCode>
.
</emphasis>
section
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<emphasis id="5998EAEEE226FF966226FC34EE8EFC2C" bold="true" box="[1323,1482,916,940]" italics="true" pageId="21" pageNumber="376">Cyanochlamys</emphasis>
</taxonomicName>
. Fasciculate hairs of this
<typeStatus id="B457885EE226FF96635BFC15EFC3FC4D" box="[1110,1159,949,973]" pageId="21" pageNumber="376">type</typeStatus>
(
<figureCitation id="F3D72A79E226FF966391FC14EE44FC4C" box="[1180,1280,948,972]" captionStart="Fig" captionStartId="22.[170,207,1649,1672]" captionTargetBox="[170,1418,185,1619]" captionTargetId="figure-66@22.[170,1418,185,1620]" captionTargetPageId="22" captionText="Fig. 7. Flowers, carpels (with pitted surfaces), and fasciculate stem hairs of Muiriantha and Philotheca section Cyanochlamys (voucher numbers indicated in brackets): (a, d, f) Muiriantha hassellii [MJB 2574, MELUD155083a], (b, e, h) Philotheca nodiflora subsp. lasiocalyx [b, e, MJB 108, MELU; h, MJB 1962, MELUD105840a], (c, f, i) Philotheca spicata [c, f, MJB 9, MELU; i, MJB 10, MELU]. Scale bars: 500 μm, in micrographs of carpels (inset close-up images of pits are not to scale), and 100 μm, in micrographs of hairs (arrows indicate fasciculate hairs in h, i that are obscured by other hairs)." pageId="21" pageNumber="376">
Fig.
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7
<emphasis id="5998EAEEE226FF9663ECFC14EE44FC4C" bold="true" box="[1249,1280,948,972]" italics="true" pageId="21" pageNumber="376">gi</emphasis>
</quantity>
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) are an apparent synapomorphy for Clade 2, as they do not occur in any other members of the
<taxonomicName id="ACEC4D7FE226FF966323FC54EFECFB8C" ID-CoL="633NG" box="[1070,1192,1012,1036]" class="Magnoliopsida" family="Rutaceae" genus="Eriostemon" kingdom="Plantae" order="Sapindales" pageId="21" pageNumber="376" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE226FF966323FC54EFECFB8C" bold="true" box="[1070,1192,1012,1036]" italics="true" pageId="21" pageNumber="376">Eriostemon</emphasis>
</taxonomicName>
group.
</paragraph>
<paragraph id="6B5336FCE226FF96645FFBB4E89CFA2C" blockId="21.[818,1490,180,1452]" pageId="21" pageNumber="376">
Finally, from comparing descriptions of
<taxonomicName id="ACEC4D7FE226FF966224FBB4EED8FBAC" ID-CoL="6NL2" authorityName="sensu Wilson" authorityYear="1971" box="[1321,1436,1044,1068]" class="Magnoliopsida" family="Rutaceae" genus="Philotheca" kingdom="Plantae" order="Sapindales" pageId="21" pageNumber="376" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE226FF966224FBB4EED8FBAC" bold="true" box="[1321,1436,1044,1068]" italics="true" pageId="21" pageNumber="376">Philotheca</emphasis>
</taxonomicName>
sections
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<emphasis id="5998EAEEE226FF96647EFB93EF56FBCB" bold="true" box="[883,1042,1075,1099]" italics="true" pageId="21" pageNumber="376">Cyanochlamys</emphasis>
</taxonomicName>
and
<taxonomicName id="ACEC4D7FE226FF96635CFB93EF88FBCB" ID-CoL="5VLR" box="[1105,1228,1075,1099]" class="Magnoliopsida" family="Rutaceae" genus="Muiriantha" kingdom="Plantae" order="Sapindales" pageId="21" pageNumber="376" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE226FF96635CFB93EF88FBCB" bold="true" box="[1105,1228,1075,1099]" italics="true" pageId="21" pageNumber="376">Muiriantha</emphasis>
</taxonomicName>
(
<bibRefCitation id="0F7D4B0DE226FF9663ECFB94EE36FBCC" author="Wilson PG" box="[1249,1394,1076,1100]" pageId="21" pageNumber="376" pagination="3 - 155" refId="ref23053" refString="Wilson PG (1970) A taxonomic revision of the genera Crowea, Eriostemon and Phebalium (Rutaceae). Nuytsia 1, 3 - 155. doi: 10.58828 / nuy 00001" type="journal article" year="1970">Wilson 1970</bibRefCitation>
,
<bibRefCitation id="0F7D4B0DE226FF966289FB94EE8EFBCB" author="Wilson PG" box="[1412,1482,1076,1100]" pageId="21" pageNumber="376" pagination="336 - 415" refId="ref23171" refString="Wilson PG (2013 a) Philotheca. In ' Flora of Australia. Vol. 26, Meliaceae, Rutaceae, Zygophyllaceae'. (Ed. A Wilson) pp. 336 - 415. (ABRS: Canberra, ACT, Australia; and CSIRO Australia: Melbourne, Vic., Australia)" type="book chapter" year="2013">
2013
<emphasis id="5998EAEEE226FF9662B0FB94EE8EFBCB" bold="true" box="[1469,1482,1076,1099]" italics="true" pageId="21" pageNumber="376">a</emphasis>
</bibRefCitation>
,
<bibRefCitation id="0F7D4B0DE226FF96643FFBF4E833FBEC" author="Wilson PG" box="[818,887,1108,1132]" pageId="21" pageNumber="376" pagination="447" refId="ref23227" refString="Wilson PG (2013 b) Muiriantha. In ' Flora of Australia. Vol. 26, Meliaceae, Rutaceae, Zygophyllaceae'. (Ed. A Wilson) p. 447. (ABRS: Canberra, ACT, Australia; and CSIRO Australia: Melbourne, Vic., Australia)" type="book chapter" year="2013">
2013
<emphasis id="5998EAEEE226FF966466FBF4E833FBEC" bold="true" box="[875,887,1108,1132]" italics="true" pageId="21" pageNumber="376">b</emphasis>
</bibRefCitation>
), it is apparent that seed features between these taxa are superficially similar. Preliminary investigations of seeds in these taxa by the authors has confirmed that they share a subreniform shape, linear hilum and sub-basal raphe, but it remains unclear whether these characteristics are synapomorphic or plesiomorphic. More detailed investigations of seed morphology may clarify whether or not these similar features should be treated as synapomorphic, and provide further characters that could be used to assign these taxa to a morphologically diagnosable taxonomic group (e.g. subtribe).
</paragraph>
</subSubSection>
</treatment>
</document>

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@ -0,0 +1,684 @@
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Relationships of
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<emphasis id="5998EAEEE226FF966327FA6EEFE9FA6A" bold="true" box="[1066,1197,1486,1514]" italics="true" pageId="21" pageNumber="376">Philotheca</emphasis>
section
<emphasis id="5998EAEEE226FF966210FA6EEED7FA6A" bold="true" box="[1309,1427,1486,1514]" italics="true" pageId="21" pageNumber="376">Erionema</emphasis>
</taxonomicName>
,
<emphasis id="5998EAEEE226FF96643FFA51E80DF98D" bold="true" box="[818,841,1521,1549]" italics="true" pageId="21" pageNumber="376">
<collectionCode id="0DFDAE39E226FF96643FFA51E801F98D" box="[818,837,1521,1549]" country="France" lsid="urn:lsid:biocol.org:col:15763" name="Museum National d' Histoire Naturelle, Paris (MNHN) - Vascular Plants" pageId="21" pageNumber="376" type="Herbarium">P</collectionCode>
.
</emphasis>
section
<taxonomicName id="ACEC4D7FE226FF9664B4FA51EF78F98D" box="[953,1084,1521,1549]" pageId="21" pageNumber="376" rank="section" section="Philotheca">
<emphasis id="5998EAEEE226FF9664B4FA51EF78F98D" bold="true" box="[953,1084,1521,1549]" italics="true" pageId="21" pageNumber="376">Philotheca</emphasis>
</taxonomicName>
,
<taxonomicName id="ACEC4D7FE226FF966340FA51EFBDF98D" box="[1101,1273,1521,1549]" class="Magnoliopsida" family="Rutaceae" genus="Drummondita" kingdom="Plantae" order="Sapindales" pageId="21" pageNumber="376" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE226FF966340FA51EFBDF98D" bold="true" box="[1101,1273,1521,1549]" italics="true" pageId="21" pageNumber="376">Drummondita</emphasis>
</taxonomicName>
and
<taxonomicName id="ACEC4D7FE226FF966236FA53EE8FF98F" box="[1339,1483,1523,1551]" class="Magnoliopsida" family="Rutaceae" genus="Geleznowia" kingdom="Plantae" order="Sapindales" pageId="21" pageNumber="376" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE226FF966236FA53EE8FF98F" bold="true" box="[1339,1483,1523,1551]" italics="true" pageId="21" pageNumber="376">Geleznowia</emphasis>
</taxonomicName>
</emphasis>
</heading>
</paragraph>
</subSubSection>
<subSubSection id="23F66577E226FF9B645FF9B4E96CFA2C" lastPageId="24" lastPageNumber="379" pageId="21" pageNumber="376" type="description">
<paragraph id="6B5336FCE226FF94645FF9B4E938F9EC" blockId="21.[818,1490,1486,1932]" lastBlockId="23.[98,770,1588,1932]" lastPageId="23" lastPageNumber="378" pageId="21" pageNumber="376">
Our well-supported recovery of Clade 1, containing
<taxonomicName id="ACEC4D7FE226FF96643FF994EFD1F9CC" box="[818,1173,1588,1612]" class="Magnoliopsida" family="Rutaceae" genus="Philotheca" kingdom="Plantae" order="Sapindales" pageId="21" pageNumber="376" phylum="Tracheophyta" rank="section" section="Erionema">
<emphasis id="5998EAEEE226FF96643FF994E8E1F9CC" bold="true" box="[818,933,1588,1612]" italics="true" pageId="21" pageNumber="376">Philotheca</emphasis>
section
<emphasis id="5998EAEEE226FF966320F994EFD1F9CC" bold="true" box="[1069,1173,1588,1612]" italics="true" pageId="21" pageNumber="376">Erionema</emphasis>
</taxonomicName>
,
<emphasis id="5998EAEEE226FF9663B4F994EF8BF9CB" bold="true" box="[1209,1231,1588,1611]" italics="true" pageId="21" pageNumber="376">
<collectionCode id="0DFDAE39E226FF9663B4F994EF8FF9CB" box="[1209,1227,1588,1611]" country="France" lsid="urn:lsid:biocol.org:col:15763" name="Museum National d' Histoire Naturelle, Paris (MNHN) - Vascular Plants" pageId="21" pageNumber="376" type="Herbarium">P</collectionCode>
.
</emphasis>
section
<taxonomicName id="ACEC4D7FE226FF96625AF994EE8EF9CC" box="[1367,1482,1588,1612]" pageId="21" pageNumber="376" rank="section" section="Philotheca">
<emphasis id="5998EAEEE226FF96625AF994EE8EF9CC" bold="true" box="[1367,1482,1588,1612]" italics="true" pageId="21" pageNumber="376">Philotheca</emphasis>
</taxonomicName>
,
<taxonomicName id="ACEC4D7FE226FF96643FF9F4E88DF9EC" box="[818,969,1620,1644]" class="Magnoliopsida" family="Rutaceae" genus="Drummondita" kingdom="Plantae" order="Sapindales" pageId="21" pageNumber="376" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE226FF96643FF9F4E88DF9EC" bold="true" box="[818,969,1620,1644]" italics="true" pageId="21" pageNumber="376">Drummondita</emphasis>
</taxonomicName>
and
<taxonomicName id="ACEC4D7FE226FF96630AF9F4EFC1F9EC" box="[1031,1157,1620,1644]" class="Magnoliopsida" family="Rutaceae" genus="Geleznowia" kingdom="Plantae" order="Sapindales" pageId="21" pageNumber="376" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE226FF96630AF9F4EFC1F9EC" bold="true" box="[1031,1157,1620,1644]" italics="true" pageId="21" pageNumber="376">Geleznowia</emphasis>
</taxonomicName>
, is consistent with results of
<bibRefCitation id="0F7D4B0DE226FF96643FF9D4EF69F90C" author="Duretto MF &amp; Heslewood MM &amp; Bayly MJ" box="[818,1069,1651,1676]" pageId="21" pageNumber="376" pagination="107 - 142" refId="ref19961" refString="Duretto MF, Heslewood MM, Bayly MJ (2023) Generic and infrageneric limits of Phebalium and its allies (Rutaceae: Zanthoxyloideae). Australian Systematic Botany 36, 107 - 142. doi: 10.1071 / SB 22018" type="journal article" year="2023">
Duretto
<emphasis id="5998EAEEE226FF966498F9D4E896F90B" bold="true" box="[917,978,1651,1675]" italics="true" pageId="21" pageNumber="376">et al.</emphasis>
(2023)
</bibRefCitation>
, and was also recovered with low support by
<bibRefCitation id="0F7D4B0DE226FF9664BAF934EF82F92C" author="Appelhans MS &amp; Bayly MJ &amp; Heslewood MM &amp; Groppo M &amp; Verboom GA &amp; Forster PI &amp; Kallunki JA &amp; Duretto MF" box="[951,1222,1684,1708]" pageId="21" pageNumber="376" pagination="1035 - 1061" refId="ref18956" refString="Appelhans MS, Bayly MJ, Heslewood MM, Groppo M, Verboom GA, Forster PI, Kallunki JA, Duretto MF (2021) A new subfamily classification of the Citrus family (Rutaceae) based on six nuclear and plastid markers. Taxon 70, 1035 - 1061. doi: 10.1002 / tax. 12543" type="journal article" year="2021">
Appelhans
<emphasis id="5998EAEEE226FF96633BF934EF34F92C" bold="true" box="[1078,1136,1684,1708]" italics="true" pageId="21" pageNumber="376">et al.</emphasis>
(2021)
</bibRefCitation>
. Within this clade, the monophyly and divergence of
<taxonomicName id="ACEC4D7FE226FF966383F914EE8EF94C" box="[1166,1482,1716,1740]" class="Magnoliopsida" family="Rutaceae" genus="Philotheca" kingdom="Plantae" order="Sapindales" pageId="21" pageNumber="376" phylum="Tracheophyta" rank="section" section="Erionema">
<emphasis id="5998EAEEE226FF966383F914EE45F94C" bold="true" box="[1166,1281,1716,1740]" italics="true" pageId="21" pageNumber="376">Philotheca</emphasis>
section
<emphasis id="5998EAEEE226FF96626FF914EE8EF94C" bold="true" box="[1378,1482,1716,1740]" italics="true" pageId="21" pageNumber="376">Erionema</emphasis>
</taxonomicName>
, placed as sister to the other taxa, is supported by several morphological synapomorphies (
<bibRefCitation id="0F7D4B0DE226FF9663BDF954EE72F88C" author="Bayly MJ" box="[1200,1334,1780,1804]" pageId="21" pageNumber="376" refId="ref19349" refString="Bayly MJ (2001) A cladistic and biogeographic analysis of Philotheca (Rutaceae) and allied genera. PhD thesis, The University of Melbourne, Melbourne, Vic., Australia. Available at http: // hdl. handle. net / 11343 / 37369" type="url" year="2001">Bayly 2001</bibRefCitation>
;
<bibRefCitation id="0F7D4B0DE226FF966246F954E82FF8AC" author="Batty EL &amp; Holmes GD &amp; Murphy DJ &amp; Forster PI &amp; Neal WC &amp; Bayly MJ" pageId="21" pageNumber="376" pagination="326 - 338" refId="ref19296" refString="Batty EL, Holmes GD, Murphy DJ, Forster PI, Neal WC, Bayly MJ (2022) Phylogeny, classification and biogeography of Philotheca sect. Erionema (Rutaceae) based on nrDNA sequences. Australian Systematic Botany 35, 326 - 338. doi: 10.1071 / SB 22003" type="journal article" year="2022">
Batty
<emphasis id="5998EAEEE226FF966299F954EE95F88C" bold="true" box="[1428,1489,1780,1804]" italics="true" pageId="21" pageNumber="376">et al.</emphasis>
2022
</bibRefCitation>
), including anther and seed characters. In particular, the seeds of
<emphasis id="5998EAEEE226FF9664EFF894E8B4F8CB" bold="true" box="[994,1008,1844,1867]" italics="true" pageId="21" pageNumber="376">
<collectionCode id="0DFDAE39E226FF9664EFF894E8B4F8CB" box="[994,1008,1844,1867]" country="France" lsid="urn:lsid:biocol.org:col:15763" name="Museum National d' Histoire Naturelle, Paris (MNHN) - Vascular Plants" pageId="21" pageNumber="376" type="Herbarium">P</collectionCode>
</emphasis>
. section
<taxonomicName id="ACEC4D7FE226FF966362F894EF93F8CC" box="[1135,1239,1844,1868]" pageId="21" pageNumber="376" rank="section" section="Erionema">
<emphasis id="5998EAEEE226FF966362F894EF93F8CC" bold="true" box="[1135,1239,1844,1868]" italics="true" pageId="21" pageNumber="376">Erionema</emphasis>
</taxonomicName>
are unique in the
<taxonomicName id="ACEC4D7FE226FF96643FF8F4E8E8F8EC" box="[818,940,1876,1900]" class="Magnoliopsida" family="Rutaceae" genus="Eriostemon" kingdom="Plantae" order="Sapindales" pageId="21" pageNumber="376" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE226FF96643FF8F4E8E8F8EC" bold="true" box="[818,940,1876,1900]" italics="true" pageId="21" pageNumber="376">Eriostemon</emphasis>
</taxonomicName>
group and readily recognisable in being ellipsoid and laterally flattened with a linear hilum on the adaxial face and having a basal raphe and chalazal region (
<figureCitation id="F3D72A79E225FF9565B4F894E9BEF8CC" box="[697,762,1844,1868]" captionStart="Fig" captionStartId="23.[1097,1134,912,935]" captionTargetBox="[98,1077,155,1517]" captionTargetId="figure-203@23.[98,976,225,1516]" captionTargetPageId="23" captionText="Fig. 8. Seed morphology in Clade 1, showing the adaxially central raphe in Philotheca section Philotheca, Drummondita and Geleznowia, and the basal raphe in Philotheca section Erionema. (ac) Seeds typical of P. section Philotheca [P. linearis; G.J. White s.n., NE 52727]. (df) Seeds typical of Drummondita [D. longifolia; H. Demarz 10361, PERTH 959707]. (gi) Seeds typical of Geleznowia [G. verru- cosa; L. Broadhurst 14, PERTH 5547822]. (jl) Seeds typical of P. section Erionema [P. verrucosa; MJB 249, HO523410]. (a, d, g, j) Lateral views. (b, e, h, k) Adaxial views. (c, f, i, l) Longitudinal sec- tions through the raphe. (a, g) Drawn with the placental portion of endocarp still attached to the seed; for all other draw- ings the placental endocarp was removed. Drawings are modified from Bayly (2001) and are not to scale." pageId="22" pageNumber="377">Fig. 8</figureCitation>
;
<bibRefCitation id="0F7D4B0DE225FF95676FF8F4EBB9F8EB" author="Wilson PG" box="[98,253,1876,1900]" pageId="22" pageNumber="377" pagination="239 - 265" refId="ref23116" refString="Wilson PG (1998 a) A taxonomic review of the genera Eriostemon and Philotheca (Rutaceae: Boronieae). Nuytsia 12, 239 - 265." type="journal article" year="1998">
Wilson 1998
<emphasis id="5998EAEEE225FF9567FDF8F4EBB9F8EB" bold="true" box="[240,253,1876,1899]" italics="true" pageId="22" pageNumber="377">a</emphasis>
</bibRefCitation>
;
<bibRefCitation id="0F7D4B0DE225FF956600F8F4EAC9F8EC" author="Bayly MJ" box="[269,397,1876,1900]" pageId="22" pageNumber="377" refId="ref19349" refString="Bayly MJ (2001) A cladistic and biogeographic analysis of Philotheca (Rutaceae) and allied genera. PhD thesis, The University of Melbourne, Melbourne, Vic., Australia. Available at http: // hdl. handle. net / 11343 / 37369" type="url" year="2001">Bayly 2001</bibRefCitation>
). In contrast, seeds of
<taxonomicName id="ACEC4D7FE225FF956582F8F4EA6BF80B" authority="section Philotheca" class="Magnoliopsida" family="Rutaceae" genus="Philotheca" kingdom="Plantae" order="Sapindales" pageId="22" pageNumber="377" phylum="Tracheophyta" rank="section" section="Philotheca">
<emphasis id="5998EAEEE225FF956582F8F4E846F8EC" bold="true" box="[655,770,1876,1900]" italics="true" pageId="22" pageNumber="377">Philotheca</emphasis>
section
<emphasis id="5998EAEEE225FF9567B1F8D3EA6BF80B" bold="true" box="[188,303,1907,1931]" italics="true" pageId="22" pageNumber="377">Philotheca</emphasis>
</taxonomicName>
,
<taxonomicName id="ACEC4D7FE225FF95664FF8D3EA9DF80B" box="[322,473,1907,1931]" class="Magnoliopsida" family="Rutaceae" genus="Drummondita" kingdom="Plantae" order="Sapindales" pageId="22" pageNumber="377" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE225FF95664FF8D3EA9DF80B" bold="true" box="[322,473,1907,1931]" italics="true" pageId="22" pageNumber="377">Drummondita</emphasis>
</taxonomicName>
and
<taxonomicName id="ACEC4D7FE225FF956517F8D3E9DCF80B" box="[538,664,1907,1931]" class="Magnoliopsida" family="Rutaceae" genus="Geleznowia" kingdom="Plantae" order="Sapindales" pageId="22" pageNumber="377" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE225FF956517F8D3E9DCF80B" bold="true" box="[538,664,1907,1931]" italics="true" pageId="22" pageNumber="377">Geleznowia</emphasis>
</taxonomicName>
(
<figureCitation id="F3D72A79E225FF9565A0F8D4E9B5F80C" box="[685,753,1908,1932]" captionStart="Fig" captionStartId="23.[1097,1134,912,935]" captionTargetBox="[98,1077,155,1517]" captionTargetId="figure-203@23.[98,976,225,1516]" captionTargetPageId="23" captionText="Fig. 8. Seed morphology in Clade 1, showing the adaxially central raphe in Philotheca section Philotheca, Drummondita and Geleznowia, and the basal raphe in Philotheca section Erionema. (ac) Seeds typical of P. section Philotheca [P. linearis; G.J. White s.n., NE 52727]. (df) Seeds typical of Drummondita [D. longifolia; H. Demarz 10361, PERTH 959707]. (gi) Seeds typical of Geleznowia [G. verru- cosa; L. Broadhurst 14, PERTH 5547822]. (jl) Seeds typical of P. section Erionema [P. verrucosa; MJB 249, HO523410]. (a, d, g, j) Lateral views. (b, e, h, k) Adaxial views. (c, f, i, l) Longitudinal sec- tions through the raphe. (a, g) Drawn with the placental portion of endocarp still attached to the seed; for all other draw- ings the placental endocarp was removed. Drawings are modified from Bayly (2001) and are not to scale." pageId="22" pageNumber="377">Fig. 8</figureCitation>
), which share a strong morphological resemblance in comparison to other members of the
<taxonomicName id="ACEC4D7FE225FF956370F8F4EFB3F8EC" box="[1149,1271,1876,1900]" class="Magnoliopsida" family="Rutaceae" genus="Eriostemon" kingdom="Plantae" order="Sapindales" pageId="22" pageNumber="377" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE225FF956370F8F4EFB3F8EC" bold="true" box="[1149,1271,1876,1900]" italics="true" pageId="22" pageNumber="377">Eriostemon</emphasis>
</taxonomicName>
group, are more or less reniform, substantially thicker than their length, have a smaller hilum that is round to deltoid and located, together with the raphe, on the adaxial face of the seed.
</paragraph>
<caption id="3F936674E225FF9567A7F9D1E897F97E" pageId="22" pageNumber="377" startId="22.[170,207,1649,1672]" targetBox="[170,1418,185,1619]" targetPageId="22" targetType="figure">
<paragraph id="6B5336FCE225FF9567A7F9D1E897F97E" blockId="22.[170,1418,1649,1790]" pageId="22" pageNumber="377">
Fig. 7. Flowers, carpels (with pitted surfaces), and fasciculate stem hairs of
<taxonomicName id="ACEC4D7FE225FF9564B0F9D1EF64F908" box="[957,1056,1649,1672]" class="Magnoliopsida" family="Rutaceae" genus="Muiriantha" kingdom="Plantae" order="Sapindales" pageId="22" pageNumber="377" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE225FF9564B0F9D1EF64F908" bold="true" box="[957,1056,1649,1672]" italics="true" pageId="22" pageNumber="377">Muiriantha</emphasis>
</taxonomicName>
and
<taxonomicName id="ACEC4D7FE225FF95635BF9D1EECEF908" box="[1110,1418,1649,1672]" class="Magnoliopsida" family="Rutaceae" genus="Philotheca" kingdom="Plantae" order="Sapindales" pageId="22" pageNumber="377" phylum="Tracheophyta" rank="section" section="Cyanochlamys">
<emphasis id="5998EAEEE225FF95635BF9D1EFF5F908" bold="true" box="[1110,1201,1649,1672]" italics="true" pageId="22" pageNumber="377">Philotheca</emphasis>
section
<emphasis id="5998EAEEE225FF956206F9D1EECEF908" bold="true" box="[1291,1418,1649,1672]" italics="true" pageId="22" pageNumber="377">Cyanochlamys</emphasis>
</taxonomicName>
(voucher numbers indicated in brackets): (
<emphasis id="5998EAEEE225FF95655FF92FE919F926" bold="true" box="[594,605,1679,1702]" italics="true" pageId="22" pageNumber="377">a</emphasis>
,
<emphasis id="5998EAEEE225FF956566F92FE932F926" bold="true" box="[619,630,1679,1702]" italics="true" pageId="22" pageNumber="377">d</emphasis>
,
<emphasis id="5998EAEEE225FF956588F92FE9C8F926" bold="true" box="[645,652,1679,1702]" italics="true" pageId="22" pageNumber="377">f</emphasis>
)
<taxonomicName id="ACEC4D7FE225FF956591F92FE808F926" box="[668,844,1679,1702]" class="Magnoliopsida" family="Rutaceae" genus="Muiriantha" kingdom="Plantae" order="Sapindales" pageId="22" pageNumber="377" phylum="Tracheophyta" rank="species" species="hassellii">
<emphasis id="5998EAEEE225FF956591F92FE808F926" bold="true" box="[668,844,1679,1702]" italics="true" pageId="22" pageNumber="377">Muiriantha hassellii</emphasis>
</taxonomicName>
[
<emphasis id="5998EAEEE225FF956450F92FE8F9F926" bold="true" box="[861,957,1679,1702]" italics="true" pageId="22" pageNumber="377">MJB 2574</emphasis>
, MELUD155083a], (
<emphasis id="5998EAEEE225FF956384F92FEFD0F926" bold="true" box="[1161,1172,1679,1702]" italics="true" pageId="22" pageNumber="377">b</emphasis>
,
<emphasis id="5998EAEEE225FF9563AFF92FEFE9F926" bold="true" box="[1186,1197,1679,1702]" italics="true" pageId="22" pageNumber="377">e</emphasis>
,
<emphasis id="5998EAEEE225FF9563B6F92FEF82F926" bold="true" box="[1211,1222,1679,1702]" italics="true" pageId="22" pageNumber="377">h</emphasis>
)
<taxonomicName id="ACEC4D7FE225FF9563DAF92FEA06F943" authorityName="M. J. Bayly" authorityYear="1962" class="Magnoliopsida" family="Rutaceae" genus="Philotheca" kingdom="Plantae" order="Sapindales" pageId="22" pageNumber="377" phylum="Tracheophyta" rank="subSpecies" species="nodiflora" subSpecies="lasiocalyx">
<emphasis id="5998EAEEE225FF9563DAF92FEECEF926" bold="true" box="[1239,1418,1679,1702]" italics="true" pageId="22" pageNumber="377">Philotheca nodiflora</emphasis>
subsp.
<emphasis id="5998EAEEE225FF9567E3F90CEA06F943" bold="true" box="[238,322,1708,1731]" italics="true" pageId="22" pageNumber="377">lasiocalyx</emphasis>
</taxonomicName>
[
<emphasis id="5998EAEEE225FF95665EF90CEA1AF943" bold="true" box="[339,350,1708,1731]" italics="true" pageId="22" pageNumber="377">b</emphasis>
,
<emphasis id="5998EAEEE225FF956661F90CEA33F943" bold="true" box="[364,375,1708,1731]" italics="true" pageId="22" pageNumber="377">e</emphasis>
,
<emphasis id="5998EAEEE225FF956688F90CEA9DF943" bold="true" box="[389,473,1708,1731]" italics="true" pageId="22" pageNumber="377">MJB 108</emphasis>
, MELU;
<emphasis id="5998EAEEE225FF95653CF90CE978F943" bold="true" box="[561,572,1708,1731]" italics="true" pageId="22" pageNumber="377">h</emphasis>
,
<emphasis id="5998EAEEE225FF956547F90CE9EFF943" bold="true" box="[586,683,1708,1731]" italics="true" pageId="22" pageNumber="377">MJB 1962</emphasis>
, MELUD105840a], (
<emphasis id="5998EAEEE225FF95647BF90CE83BF943" bold="true" box="[886,895,1708,1731]" italics="true" pageId="22" pageNumber="377">c</emphasis>
,
<emphasis id="5998EAEEE225FF956483F90CE8D1F943" bold="true" box="[910,917,1708,1731]" italics="true" pageId="22" pageNumber="377">f</emphasis>
,
<emphasis id="5998EAEEE225FF9564AEF90CE8ECF943" bold="true" box="[931,936,1708,1731]" italics="true" pageId="22" pageNumber="377">i</emphasis>
)
<taxonomicName id="ACEC4D7FE225FF9564B5F90CEF1EF943" box="[952,1114,1708,1731]" class="Magnoliopsida" family="Rutaceae" genus="Philotheca" kingdom="Plantae" order="Sapindales" pageId="22" pageNumber="377" phylum="Tracheophyta" rank="species" species="spicata">
<emphasis id="5998EAEEE225FF9564B5F90CEF1EF943" bold="true" box="[952,1114,1708,1731]" italics="true" pageId="22" pageNumber="377">Philotheca spicata</emphasis>
</taxonomicName>
[
<emphasis id="5998EAEEE225FF956366F90CEF30F943" bold="true" box="[1131,1140,1708,1731]" italics="true" pageId="22" pageNumber="377">c</emphasis>
,
<emphasis id="5998EAEEE225FF95638EF90CEFCEF943" bold="true" box="[1155,1162,1708,1731]" italics="true" pageId="22" pageNumber="377">f</emphasis>
,
<emphasis id="5998EAEEE225FF956395F90CEF97F943" bold="true" box="[1176,1235,1708,1731]" italics="true" pageId="22" pageNumber="377">MJB 9</emphasis>
, MELU;
<emphasis id="5998EAEEE225FF956227F90CEE6BF943" bold="true" box="[1322,1327,1708,1731]" italics="true" pageId="22" pageNumber="377">i</emphasis>
,
<emphasis id="5998EAEEE225FF956230F90CEEC0F943" bold="true" box="[1341,1412,1708,1731]" italics="true" pageId="22" pageNumber="377">MJB 10</emphasis>
, MELU]. Scale bars: 500 μm, in micrographs of carpels (inset close-up images of pits are not to scale), and 100 μm, in micrographs of hairs (arrows indicate fasciculate hairs in
<emphasis id="5998EAEEE225FF956550F947E92CF97E" bold="true" box="[605,616,1767,1790]" italics="true" pageId="22" pageNumber="377">h</emphasis>
,
<emphasis id="5998EAEEE225FF95657BF947E93FF97E" bold="true" box="[630,635,1767,1790]" italics="true" pageId="22" pageNumber="377">i</emphasis>
that are obscured by other hairs).
</paragraph>
</caption>
<caption id="3F936674E224FF946344FC30EE4AFA72" pageId="23" pageNumber="378" startId="23.[1097,1134,912,935]" targetBox="[98,1077,155,1517]" targetPageId="23" targetType="figure">
<paragraph id="6B5336FCE224FF946344FC30EE4AFA72" blockId="23.[1097,1490,912,1522]" pageId="23" pageNumber="378">
Fig. 8. Seed morphology in Clade 1, showing the adaxially central raphe in
<taxonomicName id="ACEC4D7FE224FF946344FC6BEE0EFC62" authority="section Philotheca" box="[1097,1354,971,994]" class="Magnoliopsida" family="Rutaceae" genus="Philotheca" kingdom="Plantae" order="Sapindales" pageId="23" pageNumber="378" phylum="Tracheophyta" rank="section" section="Philotheca">
<emphasis id="5998EAEEE224FF946344FC6BEFE5FC62" bold="true" box="[1097,1185,971,994]" italics="true" pageId="23" pageNumber="378">Philotheca</emphasis>
section
<emphasis id="5998EAEEE224FF9463FEFC6BEE0EFC62" bold="true" box="[1267,1354,971,994]" italics="true" pageId="23" pageNumber="378">Philotheca</emphasis>
</taxonomicName>
,
<taxonomicName id="ACEC4D7FE224FF94625AFC6BEE95FC62" box="[1367,1489,971,994]" class="Magnoliopsida" family="Rutaceae" genus="Drummondita" kingdom="Plantae" order="Sapindales" pageId="23" pageNumber="378" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE224FF94625AFC6BEE95FC62" bold="true" box="[1367,1489,971,994]" italics="true" pageId="23" pageNumber="378">Drummondita</emphasis>
</taxonomicName>
and
<taxonomicName id="ACEC4D7FE224FF94637AFC48EF9FFC7F" box="[1143,1243,1000,1023]" class="Magnoliopsida" family="Rutaceae" genus="Geleznowia" kingdom="Plantae" order="Sapindales" pageId="23" pageNumber="378" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE224FF94637AFC48EF9FFC7F" bold="true" box="[1143,1243,1000,1023]" italics="true" pageId="23" pageNumber="378">Geleznowia</emphasis>
</taxonomicName>
, and the basal raphe in
<taxonomicName id="ACEC4D7FE224FF946344FBA6EE0BFB9D" box="[1097,1359,1030,1053]" class="Magnoliopsida" family="Rutaceae" genus="Philotheca" kingdom="Plantae" order="Sapindales" pageId="23" pageNumber="378" phylum="Tracheophyta" rank="section" section="Erionema">
<emphasis id="5998EAEEE224FF946344FBA6EFE5FB9D" bold="true" box="[1097,1185,1030,1053]" italics="true" pageId="23" pageNumber="378">Philotheca</emphasis>
section
<emphasis id="5998EAEEE224FF9463F1FBA6EE0BFB9D" bold="true" box="[1276,1359,1030,1053]" italics="true" pageId="23" pageNumber="378">Erionema</emphasis>
</taxonomicName>
. (
<emphasis id="5998EAEEE224FF946265FBA6EECCFB9D" bold="true" box="[1384,1416,1030,1053]" italics="true" pageId="23" pageNumber="378">ac</emphasis>
) Seeds typical of
<emphasis id="5998EAEEE224FF9463A7FB83EFF0FBBA" bold="true" box="[1194,1204,1059,1082]" italics="true" pageId="23" pageNumber="378">P</emphasis>
. section
<taxonomicName id="ACEC4D7FE224FF94621DFB83EE2CFBBA" box="[1296,1384,1059,1082]" pageId="23" pageNumber="378" rank="section" section="Philotheca">
<emphasis id="5998EAEEE224FF94621DFB83EE2CFBBA" bold="true" box="[1296,1384,1059,1082]" italics="true" pageId="23" pageNumber="378">Philotheca</emphasis>
</taxonomicName>
[
<taxonomicName id="ACEC4D7FE224FF946275FB83EE89FBBA" box="[1400,1485,1059,1082]" class="Magnoliopsida" family="Rutaceae" genus="Philotheca" kingdom="Plantae" order="Sapindales" pageId="23" pageNumber="378" phylum="Tracheophyta" rank="species" species="linearis">
<emphasis id="5998EAEEE224FF946275FB83EE89FBBA" bold="true" box="[1400,1485,1059,1082]" italics="true" pageId="23" pageNumber="378">P. linearis</emphasis>
</taxonomicName>
;
<emphasis id="5998EAEEE224FF946344FBE0EF96FBD7" bold="true" box="[1097,1234,1088,1111]" italics="true" pageId="23" pageNumber="378">G.J. White s.n.</emphasis>
, NE 52727]. (
<emphasis id="5998EAEEE224FF946267FBE0EEC3FBD7" bold="true" box="[1386,1415,1088,1111]" italics="true" pageId="23" pageNumber="378">df</emphasis>
) Seeds typical of
<taxonomicName id="ACEC4D7FE224FF9463CCFBFEEE7FFBF5" box="[1217,1339,1118,1141]" class="Magnoliopsida" family="Rutaceae" genus="Drummondita" kingdom="Plantae" order="Sapindales" pageId="23" pageNumber="378" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE224FF9463CCFBFEEE7FFBF5" bold="true" box="[1217,1339,1118,1141]" italics="true" pageId="23" pageNumber="378">Drummondita</emphasis>
</taxonomicName>
[
<taxonomicName id="ACEC4D7FE224FF946255FBFEEE88FBF5" box="[1368,1484,1118,1141]" class="Magnoliopsida" family="Rutaceae" genus="Drummondita" kingdom="Plantae" order="Sapindales" pageId="23" pageNumber="378" phylum="Tracheophyta" rank="species" species="longifolia">
<emphasis id="5998EAEEE224FF946255FBFEEE88FBF5" bold="true" box="[1368,1484,1118,1141]" italics="true" pageId="23" pageNumber="378">D. longifolia</emphasis>
</taxonomicName>
;
<emphasis id="5998EAEEE224FF946344FBDBEE48FB12" bold="true" box="[1097,1292,1147,1170]" italics="true" pageId="23" pageNumber="378">H. Demarz 10361</emphasis>
, PERTH 959707]. (
<emphasis id="5998EAEEE224FF94635DFB38EF2EFB2F" bold="true" box="[1104,1130,1176,1199]" italics="true" pageId="23" pageNumber="378">gi</emphasis>
) Seeds typical of
<taxonomicName id="ACEC4D7FE224FF94621FFB38EE32FB2F" box="[1298,1398,1176,1199]" class="Magnoliopsida" family="Rutaceae" genus="Geleznowia" kingdom="Plantae" order="Sapindales" pageId="23" pageNumber="378" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE224FF94621FFB38EE32FB2F" bold="true" box="[1298,1398,1176,1199]" italics="true" pageId="23" pageNumber="378">Geleznowia</emphasis>
</taxonomicName>
[
<emphasis id="5998EAEEE224FF94628BFB38EF2BFB4D" bold="true" italics="true" pageId="23" pageNumber="378">G. verrucosa</emphasis>
;
<emphasis id="5998EAEEE224FF946373FB16EE52FB4D" bold="true" box="[1150,1302,1206,1229]" italics="true" pageId="23" pageNumber="378">L. Broadhurst 14</emphasis>
, PERTH 5547822]. (
<emphasis id="5998EAEEE224FF94635DFB73EF20FB6A" bold="true" box="[1104,1124,1235,1258]" italics="true" pageId="23" pageNumber="378">jl</emphasis>
) Seeds typical of
<emphasis id="5998EAEEE224FF946215FB73EE6CFB6A" bold="true" box="[1304,1320,1235,1258]" italics="true" pageId="23" pageNumber="378">P.</emphasis>
section
<taxonomicName id="ACEC4D7FE224FF946273FB73EE95FB6A" box="[1406,1489,1235,1258]" pageId="23" pageNumber="378" rank="section" section="Erionema">
<emphasis id="5998EAEEE224FF946273FB73EE95FB6A" bold="true" box="[1406,1489,1235,1258]" italics="true" pageId="23" pageNumber="378">Erionema</emphasis>
</taxonomicName>
[
<taxonomicName id="ACEC4D7FE224FF94635DFB50EF83FA87" authorityName="M. J. Bayly" authorityYear="2199" box="[1104,1223,1264,1287]" class="Magnoliopsida" family="Rutaceae" genus="Philotheca" kingdom="Plantae" order="Sapindales" pageId="23" pageNumber="378" phylum="Tracheophyta" rank="species" species="verrucosa">
<emphasis id="5998EAEEE224FF94635DFB50EF83FA87" bold="true" box="[1104,1223,1264,1287]" italics="true" pageId="23" pageNumber="378">P. verrucosa</emphasis>
</taxonomicName>
;
<emphasis id="5998EAEEE224FF9463ECFB50EE7BFA87" bold="true" box="[1249,1343,1264,1287]" italics="true" pageId="23" pageNumber="378">MJB 249</emphasis>
, HO523410]. (
<emphasis id="5998EAEEE224FF94635DFAAEEF1FFAA5" bold="true" box="[1104,1115,1294,1317]" italics="true" pageId="23" pageNumber="378">a</emphasis>
,
<emphasis id="5998EAEEE224FF946362FAAEEF3EFAA5" bold="true" box="[1135,1146,1294,1317]" italics="true" pageId="23" pageNumber="378">d</emphasis>
,
<emphasis id="5998EAEEE224FF946383FAAEEFDCFAA5" bold="true" box="[1166,1176,1294,1317]" italics="true" pageId="23" pageNumber="378">g</emphasis>
,
<emphasis id="5998EAEEE224FF9463A1FAAEEFF4FAA5" bold="true" box="[1196,1200,1294,1317]" italics="true" pageId="23" pageNumber="378">j</emphasis>
) Lateral views. (
<emphasis id="5998EAEEE224FF94626EFAAEEE2AFAA5" bold="true" box="[1379,1390,1294,1317]" italics="true" pageId="23" pageNumber="378">b</emphasis>
,
<emphasis id="5998EAEEE224FF94628FFAAEEEC8FAA5" bold="true" box="[1410,1420,1294,1317]" italics="true" pageId="23" pageNumber="378">e</emphasis>
,
<emphasis id="5998EAEEE224FF9462ADFAAEEEEFFAA5" bold="true" box="[1440,1451,1294,1317]" italics="true" pageId="23" pageNumber="378">h</emphasis>
,
<emphasis id="5998EAEEE224FF9462B2FAAEEE8EFAA5" bold="true" box="[1471,1482,1294,1317]" italics="true" pageId="23" pageNumber="378">k</emphasis>
) Adaxial views. (
<emphasis id="5998EAEEE224FF9463D2FA8BEFACFAC2" bold="true" box="[1247,1256,1323,1346]" italics="true" pageId="23" pageNumber="378">c</emphasis>
,
<emphasis id="5998EAEEE224FF9463FAFA8BEFB9FAC2" bold="true" box="[1271,1277,1323,1346]" italics="true" pageId="23" pageNumber="378">f</emphasis>
,
<emphasis id="5998EAEEE224FF946206FA8BEE4BFAC2" bold="true" box="[1291,1295,1323,1346]" italics="true" pageId="23" pageNumber="378">i</emphasis>
,
<emphasis id="5998EAEEE224FF946213FA8BEE66FAC2" bold="true" box="[1310,1314,1323,1346]" italics="true" pageId="23" pageNumber="378">l</emphasis>
) Longitudinal sections through the raphe. (
<emphasis id="5998EAEEE224FF94623BFAE8EE05FADF" bold="true" box="[1334,1345,1352,1375]" italics="true" pageId="23" pageNumber="378">a</emphasis>
,
<emphasis id="5998EAEEE224FF946246FAE8EE11FADF" bold="true" box="[1355,1365,1352,1375]" italics="true" pageId="23" pageNumber="378">g</emphasis>
) Drawn with the placental portion of endocarp still attached to the seed; for all other drawings the placental endocarp was removed. Drawings are modified from
<bibRefCitation id="0F7D4B0DE224FF946250FA1EEE95FA55" author="Bayly MJ" box="[1373,1489,1470,1493]" pageId="23" pageNumber="378" refId="ref19349" refString="Bayly MJ (2001) A cladistic and biogeographic analysis of Philotheca (Rutaceae) and allied genera. PhD thesis, The University of Melbourne, Melbourne, Vic., Australia. Available at http: // hdl. handle. net / 11343 / 37369" type="url" year="2001">Bayly (2001)</bibRefCitation>
and are not to scale.
</paragraph>
</caption>
<paragraph id="6B5336FCE224FF94678FF9D4E9ECF8AC" blockId="23.[98,770,1588,1932]" pageId="23" pageNumber="378">
Our supermatrix approach expands on the results of previous molecular studies with more comprehensive sampling from
<taxonomicName id="ACEC4D7FE224FF9467A1F913E948F94B" authority="section Philotheca" box="[172,524,1715,1740]" class="Magnoliopsida" family="Rutaceae" genus="Philotheca" kingdom="Plantae" order="Sapindales" pageId="23" pageNumber="378" phylum="Tracheophyta" rank="section" section="Philotheca">
<emphasis id="5998EAEEE224FF9467A1F913EA5BF94B" bold="true" box="[172,287,1715,1739]" italics="true" pageId="23" pageNumber="378">Philotheca</emphasis>
section
<emphasis id="5998EAEEE224FF946694F913E948F94B" bold="true" box="[409,524,1715,1739]" italics="true" pageId="23" pageNumber="378">Philotheca</emphasis>
</taxonomicName>
. Our results show
<taxonomicName id="ACEC4D7FE224FF94676FF973EAE0F96B" authority="section Philotheca" box="[98,420,1747,1772]" class="Magnoliopsida" family="Rutaceae" genus="Philotheca" kingdom="Plantae" order="Sapindales" pageId="23" pageNumber="378" phylum="Tracheophyta" rank="section" section="Philotheca">
<emphasis id="5998EAEEE224FF94676FF973EB91F96B" bold="true" box="[98,213,1747,1771]" italics="true" pageId="23" pageNumber="378">Philotheca</emphasis>
section
<emphasis id="5998EAEEE224FF94663CF973EAE0F96B" bold="true" box="[305,420,1747,1771]" italics="true" pageId="23" pageNumber="378">Philotheca</emphasis>
</taxonomicName>
as polyphyletic, with members of this section falling into two separate clades, one including
<taxonomicName id="ACEC4D7FE224FF94676FF8B3EBBDF8AB" box="[98,249,1811,1835]" class="Magnoliopsida" family="Rutaceae" genus="Drummondita" kingdom="Plantae" order="Sapindales" pageId="23" pageNumber="378" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE224FF94676FF8B3EBBDF8AB" bold="true" box="[98,249,1811,1835]" italics="true" pageId="23" pageNumber="378">Drummondita</emphasis>
</taxonomicName>
and one sister to
<taxonomicName id="ACEC4D7FE224FF9466CAF8B3E901F8AB" box="[455,581,1811,1835]" class="Magnoliopsida" family="Rutaceae" genus="Geleznowia" kingdom="Plantae" order="Sapindales" pageId="23" pageNumber="378" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE224FF9466CAF8B3E901F8AB" bold="true" box="[455,581,1811,1835]" italics="true" pageId="23" pageNumber="378">Geleznowia</emphasis>
</taxonomicName>
(
<figureCitation id="F3D72A79E224FF94655AF8B4E9D3F8AC" box="[599,663,1812,1836]" captionStart="Fig" captionStartId="17.[153,190,1812,1835]" captionTargetBox="[153,1434,185,1781]" captionTargetId="graphics-2@17.[153,1397,185,1755]" captionTargetPageId="17" captionText="Fig. 4. (Caption on next page)" pageId="23" pageNumber="378">Fig. 4</figureCitation>
).
</paragraph>
<paragraph id="6B5336FCE224FF9B678FF894EBBEFE0C" blockId="23.[98,770,1588,1932]" lastBlockId="24.[98,770,180,1452]" lastPageId="24" lastPageNumber="379" pageId="23" pageNumber="378">
The species of section
<taxonomicName id="ACEC4D7FE224FF9466BCF893E960F8CB" box="[433,548,1843,1867]" pageId="23" pageNumber="378" rank="section" section="Philotheca">
<emphasis id="5998EAEEE224FF9466BCF893E960F8CB" bold="true" box="[433,548,1843,1867]" italics="true" pageId="23" pageNumber="378">Philotheca</emphasis>
</taxonomicName>
that group with
<taxonomicName id="ACEC4D7FE224FF94676FF8F4EBBDF8EC" box="[98,249,1876,1900]" class="Magnoliopsida" family="Rutaceae" genus="Drummondita" kingdom="Plantae" order="Sapindales" pageId="23" pageNumber="378" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE224FF94676FF8F4EBBDF8EC" bold="true" box="[98,249,1876,1900]" italics="true" pageId="23" pageNumber="378">Drummondita</emphasis>
</taxonomicName>
constitute (with the exception of
<taxonomicName id="ACEC4D7FE224FF94657AF8F4E9BCF8EB" box="[631,760,1876,1899]" class="Magnoliopsida" family="Rutaceae" genus="Philotheca" kingdom="Plantae" order="Sapindales" pageId="23" pageNumber="378" phylum="Tracheophyta" rank="species" species="coateana">
<emphasis id="5998EAEEE224FF94657AF8F4E9BCF8EB" bold="true" box="[631,760,1876,1899]" italics="true" pageId="23" pageNumber="378">P. coateana</emphasis>
</taxonomicName>
) an assemblage that, prior to the revision of
<bibRefCitation id="0F7D4B0DE224FF946541F8D4E9BFF80C" author="Wilson PG" box="[588,763,1908,1932]" pageId="23" pageNumber="378" pagination="239 - 265" refId="ref23116" refString="Wilson PG (1998 a) A taxonomic review of the genera Eriostemon and Philotheca (Rutaceae: Boronieae). Nuytsia 12, 239 - 265." type="journal article" year="1998">
Wilson (1998
<emphasis id="5998EAEEE224FF9465EEF8D4E9B4F80B" bold="true" box="[739,752,1908,1931]" italics="true" pageId="23" pageNumber="378">a</emphasis>
)
</bibRefCitation>
, was considered the entirety of
<taxonomicName id="ACEC4D7FE224FF946382F994EE46F9CC" authorityName="sensu Wilson" authorityYear="1971" box="[1167,1282,1588,1612]" class="Magnoliopsida" family="Rutaceae" genus="Philotheca" kingdom="Plantae" order="Sapindales" pageId="23" pageNumber="378" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE224FF946382F994EE46F9CC" bold="true" box="[1167,1282,1588,1612]" italics="true" pageId="23" pageNumber="378">Philotheca</emphasis>
</taxonomicName>
. This narrow concept of
<taxonomicName id="ACEC4D7FE224FF946484F9F3E8B8F9EB" authorityName="sensu Wilson" authorityYear="1971" box="[905,1020,1619,1643]" class="Magnoliopsida" family="Rutaceae" genus="Philotheca" kingdom="Plantae" order="Sapindales" pageId="23" pageNumber="378" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE224FF946484F9F3E8B8F9EB" bold="true" box="[905,1020,1619,1643]" italics="true" pageId="23" pageNumber="378">Philotheca</emphasis>
</taxonomicName>
(referred to hereafter as
<taxonomicName id="ACEC4D7FE224FF946216F9F3EECAF9EB" authorityName="sensu Wilson" authorityYear="1971" box="[1307,1422,1619,1643]" class="Magnoliopsida" family="Rutaceae" genus="Philotheca" kingdom="Plantae" order="Sapindales" pageId="23" pageNumber="378" phylum="Tracheophyta" rank="genus" sensu="stricto">
<emphasis id="5998EAEEE224FF946216F9F3EECAF9EB" bold="true" box="[1307,1422,1619,1643]" italics="true" pageId="23" pageNumber="378">Philotheca</emphasis>
</taxonomicName>
<taxonomicNameLabel id="42AB5795E224FF946294F9F4EE89F9EB" box="[1433,1485,1620,1643]" pageId="23" pageNumber="378" sensu="stricto">s.str.</taxonomicNameLabel>
;
<figureCitation id="F3D72A79E224FF94643FF9D4E82BF90C" box="[818,879,1652,1676]" captionStart="Fig" captionStartId="17.[153,190,1812,1835]" captionTargetBox="[153,1434,185,1781]" captionTargetId="graphics-2@17.[153,1397,185,1755]" captionTargetPageId="17" captionText="Fig. 4. (Caption on next page)" pageId="23" pageNumber="378">Fig. 4</figureCitation>
, black triangle), first circumscribed by
<bibRefCitation id="0F7D4B0DE224FF946217F9D4EE8EF90C" author="Bentham G" box="[1306,1482,1652,1676]" pageId="23" pageNumber="378" refId="ref19503" refString="Bentham G (1863) ' Flora australiensis. Vol. 1. ' (Lovell Reeve: London, UK)" type="book" year="1863">Bentham (1863)</bibRefCitation>
, included only species with 10 fertile, monadelphous stamens and a spreading corolla.
<taxonomicName id="ACEC4D7FE224FF946334F913EF94F94B" box="[1081,1232,1715,1739]" class="Magnoliopsida" family="Rutaceae" genus="Drummondita" kingdom="Plantae" order="Sapindales" pageId="23" pageNumber="378" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE224FF946334F913EF94F94B" bold="true" box="[1081,1232,1715,1739]" italics="true" pageId="23" pageNumber="378">Drummondita</emphasis>
</taxonomicName>
also has monadelphous stamens, and this feature presumably led
<bibRefCitation id="0F7D4B0DE224FF946207F974EEF5F96C" author="Mueller F" box="[1290,1457,1748,1772]" pageId="23" pageNumber="378" refId="ref21636" refString="Mueller F (1869) ' Fragmenta phytographiae Australiae. Vol. 7. ' (Auctoritate Guberni Coloniae Victoriae, Ex Officina Joannis Ferres: Melbourne, Australia) Available at https: // www. biodiversitylibrary. org / item / 7224" type="url" year="1869">Mueller (1869)</bibRefCitation>
to include that genus in
<taxonomicName id="ACEC4D7FE224FF946336F954EFEAF88C" authorityName="sensu Wilson" authorityYear="1971" box="[1083,1198,1780,1804]" class="Magnoliopsida" family="Rutaceae" genus="Philotheca" kingdom="Plantae" order="Sapindales" pageId="23" pageNumber="378" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE224FF946336F954EFEAF88C" bold="true" box="[1083,1198,1780,1804]" italics="true" pageId="23" pageNumber="378">Philotheca</emphasis>
</taxonomicName>
. However,
<taxonomicName id="ACEC4D7FE224FF946237F954EE95F88C" box="[1338,1489,1780,1804]" class="Magnoliopsida" family="Rutaceae" genus="Drummondita" kingdom="Plantae" order="Sapindales" pageId="23" pageNumber="378" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE224FF946237F954EE95F88C" bold="true" box="[1338,1489,1780,1804]" italics="true" pageId="23" pageNumber="378">Drummondita</emphasis>
</taxonomicName>
was reinstated at generic rank by
<bibRefCitation id="0F7D4B0DE224FF9463DCF8B4EE33F8AC" author="Wilson PG" box="[1233,1399,1812,1836]" pageId="23" pageNumber="378" pagination="197 - 207" refId="ref23086" refString="Wilson PG (1971) Taxonomic notes on the family Rutaceae, principally of Western Australia. Nuytsia 1, 197 - 207. doi: 10.58828 / nuy 00004" type="journal article" year="1971">Wilson (1971)</bibRefCitation>
on the basis of key differences including stamen fertility (only five fertile in
<taxonomicName id="ACEC4D7FE224FF9464C2F8F4EF22F8EC" box="[975,1126,1876,1900]" class="Magnoliopsida" family="Rutaceae" genus="Drummondita" kingdom="Plantae" order="Sapindales" pageId="23" pageNumber="378" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE224FF9464C2F8F4EF22F8EC" bold="true" box="[975,1126,1876,1900]" italics="true" pageId="23" pageNumber="378">Drummondita</emphasis>
</taxonomicName>
), anther attachment (dorsifixed in
<taxonomicName id="ACEC4D7FE224FF946457F8D3E8B5F80B" box="[858,1009,1907,1931]" class="Magnoliopsida" family="Rutaceae" genus="Drummondita" kingdom="Plantae" order="Sapindales" pageId="23" pageNumber="378" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE224FF946457F8D3E8B5F80B" bold="true" box="[858,1009,1907,1931]" italics="true" pageId="23" pageNumber="378">Drummondita</emphasis>
</taxonomicName>
, versatile in
<taxonomicName id="ACEC4D7FE224FF9463AEF8D3EE52F80B" authorityName="sensu Wilson" authorityYear="1971" box="[1187,1302,1907,1931]" class="Magnoliopsida" family="Rutaceae" genus="Philotheca" kingdom="Plantae" order="Sapindales" pageId="23" pageNumber="378" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE224FF9463AEF8D3EE52F80B" bold="true" box="[1187,1302,1907,1931]" italics="true" pageId="23" pageNumber="378">Philotheca</emphasis>
</taxonomicName>
), petal texture (glumaceous in
<taxonomicName id="ACEC4D7FE22BFF9B6619FF14EAEFFF4C" box="[276,427,180,204]" class="Magnoliopsida" family="Rutaceae" genus="Drummondita" kingdom="Plantae" order="Sapindales" pageId="24" pageNumber="379" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE22BFF9B6619FF14EAEFFF4C" bold="true" box="[276,427,180,204]" italics="true" pageId="24" pageNumber="379">Drummondita</emphasis>
</taxonomicName>
, soft in
<taxonomicName id="ACEC4D7FE22BFF9B6505FF14E93FFF4C" authorityName="sensu Wilson" authorityYear="1971" box="[520,635,180,204]" class="Magnoliopsida" family="Rutaceae" genus="Philotheca" kingdom="Plantae" order="Sapindales" pageId="24" pageNumber="379" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE22BFF9B6505FF14E93FFF4C" bold="true" box="[520,635,180,204]" italics="true" pageId="24" pageNumber="379">Philotheca</emphasis>
</taxonomicName>
) and carpel apex (unbeaked in
<taxonomicName id="ACEC4D7FE22BFF9B6634FF73EA94FF6B" box="[313,464,211,235]" class="Magnoliopsida" family="Rutaceae" genus="Drummondita" kingdom="Plantae" order="Sapindales" pageId="24" pageNumber="379" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE22BFF9B6634FF73EA94FF6B" bold="true" box="[313,464,211,235]" italics="true" pageId="24" pageNumber="379">Drummondita</emphasis>
</taxonomicName>
and beaked in
<taxonomicName id="ACEC4D7FE22BFF9B6573FF73E9B5FF6B" authorityName="sensu Wilson" authorityYear="1971" box="[638,753,211,235]" class="Magnoliopsida" family="Rutaceae" genus="Philotheca" kingdom="Plantae" order="Sapindales" pageId="24" pageNumber="379" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE22BFF9B6573FF73E9B5FF6B" bold="true" box="[638,753,211,235]" italics="true" pageId="24" pageNumber="379">Philotheca</emphasis>
</taxonomicName>
); as a result,
<taxonomicName id="ACEC4D7FE22BFF9B67E6FF54E916FE8C" authority="(sensu Wilson 1971)" baseAuthorityName="sensu Wilson" baseAuthorityYear="1971" box="[235,594,244,268]" class="Magnoliopsida" family="Rutaceae" genus="Philotheca" kingdom="Plantae" order="Sapindales" pageId="24" pageNumber="379" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE22BFF9B67E6FF54EA1AFE8C" bold="true" box="[235,350,244,268]" italics="true" pageId="24" pageNumber="379">Philotheca</emphasis>
(
<emphasis id="5998EAEEE22BFF9B667FFF54EAE9FE8B" bold="true" box="[370,429,244,267]" italics="true" pageId="24" pageNumber="379">sensu</emphasis>
<bibRefCitation id="0F7D4B0DE22BFF9B66BAFF54E90CFE8C" author="Wilson PG" box="[439,584,244,268]" pageId="24" pageNumber="379" pagination="197 - 207" refId="ref23086" refString="Wilson PG (1971) Taxonomic notes on the family Rutaceae, principally of Western Australia. Nuytsia 1, 197 - 207. doi: 10.58828 / nuy 00004" type="journal article" year="1971">Wilson 1971</bibRefCitation>
)
</taxonomicName>
returned to its original, narrow circumscription.
<bibRefCitation id="0F7D4B0DE22BFF9B66D2FEB4E9CAFEAC" author="Wilson PG" box="[479,654,276,300]" pageId="24" pageNumber="379" pagination="239 - 265" refId="ref23116" refString="Wilson PG (1998 a) A taxonomic review of the genera Eriostemon and Philotheca (Rutaceae: Boronieae). Nuytsia 12, 239 - 265." type="journal article" year="1998">
Wilson (1998
<emphasis id="5998EAEEE22BFF9B657AFEB4E9C0FEAB" bold="true" box="[631,644,276,299]" italics="true" pageId="24" pageNumber="379">a</emphasis>
)
</bibRefCitation>
expanded
<taxonomicName id="ACEC4D7FE22BFF9B676FFE93EB91FECB" baseAuthorityName="sensu Wilson" baseAuthorityYear="1971" box="[98,213,307,331]" class="Magnoliopsida" family="Rutaceae" genus="Philotheca" kingdom="Plantae" order="Sapindales" pageId="24" pageNumber="379" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE22BFF9B676FFE93EB91FECB" bold="true" box="[98,213,307,331]" italics="true" pageId="24" pageNumber="379">Philotheca</emphasis>
</taxonomicName>
to include
<taxonomicName id="ACEC4D7FE22BFF9B667EFE93EAA2FECB" baseAuthorityName="sensu Wilson" baseAuthorityYear="1971" box="[371,486,307,331]" class="Magnoliopsida" family="Rutaceae" genus="Philotheca" kingdom="Plantae" order="Sapindales" pageId="24" pageNumber="379" phylum="Tracheophyta" rank="genus" sensu="stricto">
<emphasis id="5998EAEEE22BFF9B667EFE93EAA2FECB" bold="true" box="[371,486,307,331]" italics="true" pageId="24" pageNumber="379">Philotheca</emphasis>
</taxonomicName>
<taxonomicNameLabel id="42AB5795E22BFF9B66F5FE94E96AFECB" box="[504,558,308,331]" pageId="24" pageNumber="379" sensu="stricto">s.str.</taxonomicNameLabel>
, plus all species previously included by
<bibRefCitation id="0F7D4B0DE22BFF9B6667FEF4E94FFEEC" author="Wilson PG" box="[362,523,340,364]" pageId="24" pageNumber="379" pagination="3 - 155" refId="ref23053" refString="Wilson PG (1970) A taxonomic revision of the genera Crowea, Eriostemon and Phebalium (Rutaceae). Nuytsia 1, 3 - 155. doi: 10.58828 / nuy 00001" type="journal article" year="1970">Wilson (1970)</bibRefCitation>
in
<taxonomicName id="ACEC4D7FE22BFF9B653CFEF4EBB7FE0C" class="Magnoliopsida" family="Rutaceae" genus="Eriostemon" kingdom="Plantae" order="Sapindales" pageId="24" pageNumber="379" phylum="Tracheophyta" rank="section" section="Nigrostipulae">
<emphasis id="5998EAEEE22BFF9B653CFEF4E9EFFEEC" bold="true" box="[561,683,340,364]" italics="true" pageId="24" pageNumber="379">Eriostemon</emphasis>
section
<emphasis id="5998EAEEE22BFF9B676FFED4EBB7FE0C" bold="true" box="[98,243,372,396]" italics="true" pageId="24" pageNumber="379">Nigrostipulae</emphasis>
</taxonomicName>
.
</paragraph>
<paragraph id="6B5336FCE22BFF9B678FFE34EAE2FC8C" blockId="24.[98,770,180,1452]" pageId="24" pageNumber="379">
Among members of
<taxonomicName id="ACEC4D7FE22BFF9B6664FE33EA98FE2B" baseAuthorityName="sensu Wilson" baseAuthorityYear="1971" box="[361,476,403,427]" class="Magnoliopsida" family="Rutaceae" genus="Philotheca" kingdom="Plantae" order="Sapindales" pageId="24" pageNumber="379" phylum="Tracheophyta" rank="genus" sensu="stricto">
<emphasis id="5998EAEEE22BFF9B6664FE33EA98FE2B" bold="true" box="[361,476,403,427]" italics="true" pageId="24" pageNumber="379">Philotheca</emphasis>
</taxonomicName>
<taxonomicNameLabel id="42AB5795E22BFF9B66E8FE34E958FE2B" box="[485,540,404,427]" pageId="24" pageNumber="379" sensu="stricto">s.str.</taxonomicNameLabel>
, fusion of the staminal filaments is present in
<taxonomicName id="ACEC4D7FE22BFF9B669BFE14E9C3FE4C" box="[406,647,436,460]" class="Magnoliopsida" family="Rutaceae" genus="Philotheca" kingdom="Plantae" order="Sapindales" pageId="24" pageNumber="379" phylum="Tracheophyta" rank="species" species="salsolifolia">
<emphasis id="5998EAEEE22BFF9B669BFE14E9C3FE4C" bold="true" box="[406,647,436,460]" italics="true" pageId="24" pageNumber="379">Philotheca salsolifolia</emphasis>
</taxonomicName>
,
<taxonomicName id="ACEC4D7FE22BFF9B659AFE14E9BEFE4C" box="[663,762,436,460]" class="Magnoliopsida" family="Rutaceae" genus="Philotheca" kingdom="Plantae" order="Sapindales" pageId="24" pageNumber="379" phylum="Tracheophyta" rank="species" species="ciliata">
<emphasis id="5998EAEEE22BFF9B659AFE14E9BEFE4C" bold="true" box="[663,762,436,460]" italics="true" pageId="24" pageNumber="379">P. ciliata</emphasis>
</taxonomicName>
,
<taxonomicName id="ACEC4D7FE22BFF9B676FFE74EBA4FE6C" box="[98,224,468,492]" class="Magnoliopsida" family="Rutaceae" genus="Philotheca" kingdom="Plantae" order="Sapindales" pageId="24" pageNumber="379" phylum="Tracheophyta" rank="species" species="basistyla">
<emphasis id="5998EAEEE22BFF9B676FFE74EBA4FE6C" bold="true" box="[98,224,468,492]" italics="true" pageId="24" pageNumber="379">P. basistyla</emphasis>
</taxonomicName>
,
<taxonomicName id="ACEC4D7FE22BFF9B67FCFE74EA2AFE6C" box="[241,366,468,492]" class="Magnoliopsida" family="Rutaceae" genus="Philotheca" kingdom="Plantae" order="Sapindales" pageId="24" pageNumber="379" phylum="Tracheophyta" rank="species" species="tubiflora">
<emphasis id="5998EAEEE22BFF9B67FCFE74EA2AFE6C" bold="true" box="[241,366,468,492]" italics="true" pageId="24" pageNumber="379">P. tubiflora</emphasis>
</taxonomicName>
,
<taxonomicName id="ACEC4D7FE22BFF9B6673FE74E94EFE6C" box="[382,522,468,492]" class="Magnoliopsida" family="Rutaceae" genus="Philotheca" kingdom="Plantae" order="Sapindales" pageId="24" pageNumber="379" phylum="Tracheophyta" rank="species" species="acrolopha">
<emphasis id="5998EAEEE22BFF9B6673FE74E94EFE6C" bold="true" box="[382,522,468,492]" italics="true" pageId="24" pageNumber="379">P. acrolopha</emphasis>
</taxonomicName>
and
<taxonomicName id="ACEC4D7FE22BFF9B654BFE74EBE2FD8C" authority="(Bayly 2001)" baseAuthorityName="Bayly" baseAuthorityYear="2001" class="Magnoliopsida" family="Rutaceae" genus="Philotheca" kingdom="Plantae" order="Sapindales" pageId="24" pageNumber="379" phylum="Tracheophyta" rank="species" species="sericea">
<emphasis id="5998EAEEE22BFF9B654BFE74E9F4FE6C" bold="true" box="[582,688,468,492]" italics="true" pageId="24" pageNumber="379">P. sericea</emphasis>
(
<bibRefCitation id="0F7D4B0DE22BFF9B65CEFE74EBDFFD8C" author="Bayly MJ" pageId="24" pageNumber="379" refId="ref19349" refString="Bayly MJ (2001) A cladistic and biogeographic analysis of Philotheca (Rutaceae) and allied genera. PhD thesis, The University of Melbourne, Melbourne, Vic., Australia. Available at http: // hdl. handle. net / 11343 / 37369" type="url" year="2001">Bayly 2001</bibRefCitation>
)
</taxonomicName>
, but the degree of fusion varies among these species. In particular, the filaments of
<taxonomicName id="ACEC4D7FE22BFF9B66A2FDB4E97DFDAC" box="[431,569,532,556]" class="Magnoliopsida" family="Rutaceae" genus="Philotheca" kingdom="Plantae" order="Sapindales" pageId="24" pageNumber="379" phylum="Tracheophyta" rank="species" species="acrolopha">
<emphasis id="5998EAEEE22BFF9B66A2FDB4E97DFDAC" bold="true" box="[431,569,532,556]" italics="true" pageId="24" pageNumber="379">P. acrolopha</emphasis>
</taxonomicName>
and
<taxonomicName id="ACEC4D7FE22BFF9B657DFDB4E993FDAC" baseAuthorityName="Bayly" baseAuthorityYear="2001" box="[624,727,532,556]" class="Magnoliopsida" family="Rutaceae" genus="Philotheca" kingdom="Plantae" order="Sapindales" pageId="24" pageNumber="379" phylum="Tracheophyta" rank="species" species="sericea">
<emphasis id="5998EAEEE22BFF9B657DFDB4E993FDAC" bold="true" box="[624,727,532,556]" italics="true" pageId="24" pageNumber="379">P. sericea</emphasis>
</taxonomicName>
are fused only very minutely at the base (
<bibRefCitation id="0F7D4B0DE22BFF9B6513FD94E9E4FDCC" author="Bayly MJ" box="[542,672,564,588]" pageId="24" pageNumber="379" refId="ref19349" refString="Bayly MJ (2001) A cladistic and biogeographic analysis of Philotheca (Rutaceae) and allied genera. PhD thesis, The University of Melbourne, Melbourne, Vic., Australia. Available at http: // hdl. handle. net / 11343 / 37369" type="url" year="2001">Bayly 2001</bibRefCitation>
). In our analyses, the only species to be placed in this clade that does not have fused filaments is
<taxonomicName id="ACEC4D7FE22BFF9B6696FDD4E93EFD0B" box="[411,634,628,652]" class="Magnoliopsida" family="Rutaceae" genus="Philotheca" kingdom="Plantae" order="Sapindales" pageId="24" pageNumber="379" phylum="Tracheophyta" rank="species" species="coateana">
<emphasis id="5998EAEEE22BFF9B6696FDD4E93EFD0B" bold="true" box="[411,634,628,652]" italics="true" pageId="24" pageNumber="379">Philotheca coateana</emphasis>
</taxonomicName>
, which was not considered part of
<taxonomicName id="ACEC4D7FE22BFF9B6675FD34EAAFFD2C" baseAuthorityName="sensu Wilson" baseAuthorityYear="1971" box="[376,491,660,684]" class="Magnoliopsida" family="Rutaceae" genus="Philotheca" kingdom="Plantae" order="Sapindales" pageId="24" pageNumber="379" phylum="Tracheophyta" rank="genus" sensu="stricto">
<emphasis id="5998EAEEE22BFF9B6675FD34EAAFFD2C" bold="true" box="[376,491,660,684]" italics="true" pageId="24" pageNumber="379">Philotheca</emphasis>
</taxonomicName>
<taxonomicNameLabel id="42AB5795E22BFF9B66F5FD35E969FD2C" box="[504,557,661,684]" pageId="24" pageNumber="379" sensu="stricto">s.str.</taxonomicNameLabel>
by
<bibRefCitation id="0F7D4B0DE22BFF9B656EFD34E9BEFD2C" author="Bayly MJ" box="[611,762,660,684]" pageId="24" pageNumber="379" refId="ref19349" refString="Bayly MJ (2001) A cladistic and biogeographic analysis of Philotheca (Rutaceae) and allied genera. PhD thesis, The University of Melbourne, Melbourne, Vic., Australia. Available at http: // hdl. handle. net / 11343 / 37369" type="url" year="2001">Bayly (2001)</bibRefCitation>
; the free nature of filaments in this species was verified in the current study by using scanning electron microscopy (see Supplementary
<figureCitation id="F3D72A79E22BFF9B6645FD54EADDFC8C" box="[328,409,756,780]" captionStart="Fig" captionStartId="18.[203,240,1180,1203]" captionTargetBox="[130,1485,510,1165]" captionTargetId="graphics-1812@18.[586,1617,337,1258]" captionTargetPageId="18" captionText="Fig. 5. Results of the likelihood-mapping analysis of loci. (a) Plot of phylogenetic informativeness of individual loci, where a higher percentage of fully resolved quartets for a locus indicates greater support for tree-like evolution. Dashed lines on the plot indicate the three cut-off values that were tested for potentially improving phylogenetic resolution of the polytomy (i.e. 50, 60 and 70%). Bars along the x-axis denote the cluster that each locus was placed in during the analysis of tree space; some loci were excluded from the tree-space analysis, owing to incomplete representation of samples. (b) Phylogenetic network (NeighborNet) showing splits of the backbone polytomy; constructed from a concatenated alignment of all loci with&gt;60% of quartets fully resolved. For Crowea, EA, eastern Australia; WA, western Australia." pageId="24" pageNumber="379">Fig. S5</figureCitation>
).
</paragraph>
<paragraph id="6B5336FCE22BFF9B678FFCB4E96CFA2C" blockId="24.[98,770,180,1452]" pageId="24" pageNumber="379">
The remaining members of
<taxonomicName id="ACEC4D7FE22BFF9B66B1FCB3E846FCAB" authority="section Philotheca" box="[444,770,787,812]" class="Magnoliopsida" family="Rutaceae" genus="Philotheca" kingdom="Plantae" order="Sapindales" pageId="24" pageNumber="379" phylum="Tracheophyta" rank="section" section="Philotheca">
<emphasis id="5998EAEEE22BFF9B66B1FCB3E96BFCAB" bold="true" box="[444,559,787,811]" italics="true" pageId="24" pageNumber="379">Philotheca</emphasis>
section
<emphasis id="5998EAEEE22BFF9B6582FCB3E846FCAB" bold="true" box="[655,770,787,811]" italics="true" pageId="24" pageNumber="379">Philotheca</emphasis>
</taxonomicName>
that are not part of
<taxonomicName id="ACEC4D7FE22BFF9B6667FC94EA99FCCC" baseAuthorityName="sensu Wilson" baseAuthorityYear="1971" box="[362,477,820,844]" class="Magnoliopsida" family="Rutaceae" genus="Philotheca" kingdom="Plantae" order="Sapindales" pageId="24" pageNumber="379" phylum="Tracheophyta" rank="genus" sensu="stricto">
<emphasis id="5998EAEEE22BFF9B6667FC94EA99FCCC" bold="true" box="[362,477,820,844]" italics="true" pageId="24" pageNumber="379">Philotheca</emphasis>
</taxonomicName>
<taxonomicNameLabel id="42AB5795E22BFF9B66E0FC94E966FCCB" box="[493,546,820,843]" pageId="24" pageNumber="379" sensu="stricto">s.str.</taxonomicNameLabel>
are equivalent to
<taxonomicName id="ACEC4D7FE22BFF9B676FFCF4E845FCEC" authority="sensu Wilson (1970)" authorityName="sensu Wilson" authorityYear="1970" box="[98,769,852,876]" class="Magnoliopsida" family="Rutaceae" genus="Eriostemon" kingdom="Plantae" order="Sapindales" pageId="24" pageNumber="379" phylum="Tracheophyta" rank="section" section="Nigrostipulae">
<emphasis id="5998EAEEE22BFF9B676FFCF4EB98FCEC" bold="true" box="[98,220,852,876]" italics="true" pageId="24" pageNumber="379">Eriostemon</emphasis>
section
<emphasis id="5998EAEEE22BFF9B6655FCF4E97FFCEB" bold="true" box="[344,571,852,876]" italics="true" pageId="24" pageNumber="379">Nigrostipulae sensu</emphasis>
<bibRefCitation id="0F7D4B0DE22BFF9B655FFCF4E845FCEC" author="Wilson PG" box="[594,769,852,876]" pageId="24" pageNumber="379" pagination="3 - 155" refId="ref23053" refString="Wilson PG (1970) A taxonomic revision of the genera Crowea, Eriostemon and Phebalium (Rutaceae). Nuytsia 1, 3 - 155. doi: 10.58828 / nuy 00001" type="journal article" year="1970">Wilson (1970)</bibRefCitation>
</taxonomicName>
(referred to herein as
<emphasis id="5998EAEEE22BFF9B6674FCD3E9DFFC0B" bold="true" box="[377,667,883,907]" italics="true" pageId="24" pageNumber="379">
<taxonomicName id="ACEC4D7FE22BFF9B6674FCD3EAA8FC0B" baseAuthorityName="sensu Wilson" baseAuthorityYear="1971" box="[377,492,883,907]" class="Magnoliopsida" family="Rutaceae" genus="Philotheca" kingdom="Plantae" order="Sapindales" pageId="24" pageNumber="379" phylum="Tracheophyta" rank="genus">Philotheca</taxonomicName>
Nigrostipulae
</emphasis>
;
<figureCitation id="F3D72A79E22BFF9B65BFFCD4E9BEFC0C" box="[690,762,884,908]" captionStart="Fig" captionStartId="17.[153,190,1812,1835]" captionTargetBox="[153,1434,185,1781]" captionTargetId="graphics-2@17.[153,1397,185,1755]" captionTargetPageId="17" captionText="Fig. 4. (Caption on next page)" pageId="24" pageNumber="379">Fig. 4</figureCitation>
, black square). In his revision of
<taxonomicName id="ACEC4D7FE22BFF9B6513FC34EBF8FC4C" authority=", Wilson (1998 a)" authorityName=", Wilson" authorityYear="1998" class="Magnoliopsida" family="Rutaceae" genus="Eriostemon" kingdom="Plantae" order="Sapindales" pageId="24" pageNumber="379" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE22BFF9B6513FC34E9DCFC2C" bold="true" box="[542,664,916,940]" italics="true" pageId="24" pageNumber="379">Eriostemon</emphasis>
,
<bibRefCitation id="0F7D4B0DE22BFF9B65B8FC34EBF8FC4C" author="Wilson PG" pageId="24" pageNumber="379" pagination="239 - 265" refId="ref23116" refString="Wilson PG (1998 a) A taxonomic review of the genera Eriostemon and Philotheca (Rutaceae: Boronieae). Nuytsia 12, 239 - 265." type="journal article" year="1998">
Wilson (1998
<emphasis id="5998EAEEE22BFF9B67A9FC14EBF5FC4B" bold="true" box="[164,177,948,971]" italics="true" pageId="24" pageNumber="379">a</emphasis>
)
</bibRefCitation>
</taxonomicName>
recognised the similarity of
<taxonomicName id="ACEC4D7FE22BFF9B6526FC14E9EDFC4C" box="[555,681,948,972]" class="Magnoliopsida" family="Rutaceae" genus="Geleznowia" kingdom="Plantae" order="Sapindales" pageId="24" pageNumber="379" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE22BFF9B6526FC14E9EDFC4C" bold="true" box="[555,681,948,972]" italics="true" pageId="24" pageNumber="379">Geleznowia</emphasis>
</taxonomicName>
to his newly circumscribed
<taxonomicName id="ACEC4D7FE22BFF9B6664FC73E981FC6B" authority="section Philotheca" box="[361,709,979,1004]" class="Magnoliopsida" family="Rutaceae" genus="Philotheca" kingdom="Plantae" order="Sapindales" pageId="24" pageNumber="379" phylum="Tracheophyta" rank="section" section="Philotheca">
<emphasis id="5998EAEEE22BFF9B6664FC73EA98FC6B" bold="true" box="[361,476,979,1003]" italics="true" pageId="24" pageNumber="379">Philotheca</emphasis>
section
<emphasis id="5998EAEEE22BFF9B655FFC73E981FC6B" bold="true" box="[594,709,979,1003]" italics="true" pageId="24" pageNumber="379">Philotheca</emphasis>
</taxonomicName>
and contemplated that the arrangement he presented may render
<taxonomicName id="ACEC4D7FE22BFF9B67B9FBB4EA63FBAC" baseAuthorityName="sensu Wilson" baseAuthorityYear="1971" box="[180,295,1044,1068]" class="Magnoliopsida" family="Rutaceae" genus="Philotheca" kingdom="Plantae" order="Sapindales" pageId="24" pageNumber="379" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE22BFF9B67B9FBB4EA63FBAC" bold="true" box="[180,295,1044,1068]" italics="true" pageId="24" pageNumber="379">Philotheca</emphasis>
</taxonomicName>
paraphyletic with regards to
<taxonomicName id="ACEC4D7FE22BFF9B6571FBB4E9BEFBAC" box="[636,762,1044,1068]" class="Magnoliopsida" family="Rutaceae" genus="Geleznowia" kingdom="Plantae" order="Sapindales" pageId="24" pageNumber="379" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE22BFF9B6571FBB4E9BEFBAC" bold="true" box="[636,762,1044,1068]" italics="true" pageId="24" pageNumber="379">Geleznowia</emphasis>
</taxonomicName>
. In particular,
<bibRefCitation id="0F7D4B0DE22BFF9B67F0FB94EAE5FBCB" author="Wilson PG" box="[253,417,1076,1100]" pageId="24" pageNumber="379" pagination="239 - 265" refId="ref23116" refString="Wilson PG (1998 a) A taxonomic review of the genera Eriostemon and Philotheca (Rutaceae: Boronieae). Nuytsia 12, 239 - 265." type="journal article" year="1998">
Wilson (1998
<emphasis id="5998EAEEE22BFF9B6699FB94EAE5FBCB" bold="true" box="[404,417,1076,1099]" italics="true" pageId="24" pageNumber="379">a</emphasis>
</bibRefCitation>
,
<bibRefCitation id="0F7D4B0DE22BFF9B66BDFB94EAB2FBCB" author="Wilson PG" box="[432,502,1076,1100]" pageId="24" pageNumber="379" pagination="336 - 415" refId="ref23171" refString="Wilson PG (2013 a) Philotheca. In ' Flora of Australia. Vol. 26, Meliaceae, Rutaceae, Zygophyllaceae'. (Ed. A Wilson) pp. 336 - 415. (ABRS: Canberra, ACT, Australia; and CSIRO Australia: Melbourne, Vic., Australia)" type="book chapter" year="2013">
2013
<emphasis id="5998EAEEE22BFF9B66E4FB94EAB2FBCB" bold="true" box="[489,502,1076,1099]" italics="true" pageId="24" pageNumber="379">a</emphasis>
</bibRefCitation>
) noted that
<taxonomicName id="ACEC4D7FE22BFF9B6589FB93E846FBCB" box="[644,770,1075,1099]" class="Magnoliopsida" family="Rutaceae" genus="Geleznowia" kingdom="Plantae" order="Sapindales" pageId="24" pageNumber="379" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE22BFF9B6589FB93E846FBCB" bold="true" box="[644,770,1075,1099]" italics="true" pageId="24" pageNumber="379">Geleznowia</emphasis>
</taxonomicName>
and some members of
<taxonomicName id="ACEC4D7FE22BFF9B6652FBF4E9E7FBEC" authority="section Philotheca" box="[351,675,1108,1132]" class="Magnoliopsida" family="Rutaceae" genus="Philotheca" kingdom="Plantae" order="Sapindales" pageId="24" pageNumber="379" phylum="Tracheophyta" rank="section" section="Philotheca">
<emphasis id="5998EAEEE22BFF9B6652FBF4EA96FBEC" bold="true" box="[351,466,1108,1132]" italics="true" pageId="24" pageNumber="379">Philotheca</emphasis>
section
<emphasis id="5998EAEEE22BFF9B653DFBF4E9E7FBEC" bold="true" box="[560,675,1108,1132]" italics="true" pageId="24" pageNumber="379">Philotheca</emphasis>
</taxonomicName>
(including
<taxonomicName id="ACEC4D7FE22BFF9B6782FBD4EA46FB0C" baseAuthorityName="sensu Wilson" baseAuthorityYear="1971" box="[143,258,1140,1164]" class="Magnoliopsida" family="Rutaceae" genus="Philotheca" kingdom="Plantae" order="Sapindales" pageId="24" pageNumber="379" phylum="Tracheophyta" rank="genus" sensu="stricto">
<emphasis id="5998EAEEE22BFF9B6782FBD4EA46FB0C" bold="true" box="[143,258,1140,1164]" italics="true" pageId="24" pageNumber="379">Philotheca</emphasis>
</taxonomicName>
<taxonomicNameLabel id="42AB5795E22BFF9B6600FBD5EA06FB0C" box="[269,322,1141,1164]" pageId="24" pageNumber="379" sensu="stricto">s.str.</taxonomicNameLabel>
and
<emphasis id="5998EAEEE22BFF9B668DFBD4E9D8FB0C" bold="true" box="[384,668,1140,1164]" italics="true" pageId="24" pageNumber="379">
<taxonomicName id="ACEC4D7FE22BFF9B668DFBD4EAB7FB0C" baseAuthorityName="sensu Wilson" baseAuthorityYear="1971" box="[384,499,1140,1164]" class="Magnoliopsida" family="Rutaceae" genus="Philotheca" kingdom="Plantae" order="Sapindales" pageId="24" pageNumber="379" phylum="Tracheophyta" rank="genus">Philotheca</taxonomicName>
Nigrostipulae
</emphasis>
) possess filiform sclereids, similar seeds and the same chromosome number. Although
<taxonomicName id="ACEC4D7FE22BFF9B6633FB14EAF8FB4C" box="[318,444,1204,1228]" class="Magnoliopsida" family="Rutaceae" genus="Geleznowia" kingdom="Plantae" order="Sapindales" pageId="24" pageNumber="379" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE22BFF9B6633FB14EAF8FB4C" bold="true" box="[318,444,1204,1228]" italics="true" pageId="24" pageNumber="379">Geleznowia</emphasis>
</taxonomicName>
shares these morphological features with
<taxonomicName id="ACEC4D7FE22BFF9B6628FB74E9D5FB6C" authority="section Philotheca" box="[293,657,1236,1260]" class="Magnoliopsida" family="Rutaceae" genus="Philotheca" kingdom="Plantae" order="Sapindales" pageId="24" pageNumber="379" phylum="Tracheophyta" rank="section" section="Philotheca">
<emphasis id="5998EAEEE22BFF9B6628FB74EADCFB6C" bold="true" box="[293,408,1236,1260]" italics="true" pageId="24" pageNumber="379">Philotheca</emphasis>
section
<emphasis id="5998EAEEE22BFF9B6513FB74E9D5FB6C" bold="true" box="[542,657,1236,1260]" italics="true" pageId="24" pageNumber="379">Philotheca</emphasis>
</taxonomicName>
in the broad sense (
<taxonomicName id="ACEC4D7FE22BFF9B67F6FB54EA98FA8B" authority="Wilson 1998 a" authorityName="Wilson" authorityYear="1998" box="[251,476,1268,1292]" pageId="24" pageNumber="379" rank="species" species="sensu">
<emphasis id="5998EAEEE22BFF9B67F6FB54EA72FA8B" bold="true" box="[251,310,1268,1291]" italics="true" pageId="24" pageNumber="379">sensu</emphasis>
<bibRefCitation id="0F7D4B0DE22BFF9B6632FB54EA98FA8B" author="Wilson PG" box="[319,476,1268,1292]" pageId="24" pageNumber="379" pagination="239 - 265" refId="ref23116" refString="Wilson PG (1998 a) A taxonomic review of the genera Eriostemon and Philotheca (Rutaceae: Boronieae). Nuytsia 12, 239 - 265." type="journal article" year="1998">
Wilson 1998
<emphasis id="5998EAEEE22BFF9B66C2FB54EA98FA8B" bold="true" box="[463,476,1268,1291]" italics="true" pageId="24" pageNumber="379">a</emphasis>
</bibRefCitation>
</taxonomicName>
), our recovery of a sister relationship specifically between
<taxonomicName id="ACEC4D7FE22BFF9B66D4FAB4E913FAAC" box="[473,599,1300,1324]" class="Magnoliopsida" family="Rutaceae" genus="Geleznowia" kingdom="Plantae" order="Sapindales" pageId="24" pageNumber="379" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE22BFF9B66D4FAB4E913FAAC" bold="true" box="[473,599,1300,1324]" italics="true" pageId="24" pageNumber="379">Geleznowia</emphasis>
</taxonomicName>
and
<emphasis id="5998EAEEE22BFF9B6582FAB4EA44FACC" bold="true" italics="true" pageId="24" pageNumber="379">
<taxonomicName id="ACEC4D7FE22BFF9B6582FAB4E846FAAC" baseAuthorityName="sensu Wilson" baseAuthorityYear="1971" box="[655,770,1300,1324]" class="Magnoliopsida" family="Rutaceae" genus="Philotheca" kingdom="Plantae" order="Sapindales" pageId="24" pageNumber="379" phylum="Tracheophyta" rank="genus">Philotheca</taxonomicName>
Nigrostipulae
</emphasis>
is not supported by any morphological synapomorphies that we can identify, probably because of the highly derived morphology of
<taxonomicName id="ACEC4D7FE22BFF9B66B8FAD4E977FA0C" box="[437,563,1396,1420]" class="Magnoliopsida" family="Rutaceae" genus="Geleznowia" kingdom="Plantae" order="Sapindales" pageId="24" pageNumber="379" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE22BFF9B66B8FAD4E977FA0C" bold="true" box="[437,563,1396,1420]" italics="true" pageId="24" pageNumber="379">Geleznowia</emphasis>
</taxonomicName>
and a high degree of morphological homoplasy in Clade 1.
</paragraph>
</subSubSection>
</treatment>
</document>

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@ -0,0 +1,406 @@
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Relationships of
<taxonomicName id="ACEC4D7FE227FF976657F970EAFDF96C" ID-CoL="3W8Q" authority="Sm." box="[346,441,1744,1772]" class="Magnoliopsida" family="Rutaceae" genus="Crowea" kingdom="Plantae" order="Sapindales" pageId="20" pageNumber="375" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE227FF976657F970EAFDF96C" bold="true" box="[346,441,1744,1772]" italics="true" pageId="20" pageNumber="375">Crowea</emphasis>
</taxonomicName>
,
<taxonomicName id="ACEC4D7FE227FF9766C6F96EE912F96A" authority="Sm." box="[459,598,1742,1770]" class="Magnoliopsida" family="Rutaceae" genus="Eriostemon" kingdom="Plantae" order="Sapindales" pageId="20" pageNumber="375" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE227FF9766C6F96EE912F96A" bold="true" box="[459,598,1742,1770]" italics="true" pageId="20" pageNumber="375">Eriostemon</emphasis>
</taxonomicName>
and
<taxonomicName id="ACEC4D7FE227FF97676FF951EAB6F88F" box="[98,498,1777,1807]" class="Magnoliopsida" family="Rutaceae" genus="Philotheca" kingdom="Plantae" order="Sapindales" pageId="20" pageNumber="375" phylum="Tracheophyta" rank="section" section="Corynonema">
<emphasis id="5998EAEEE227FF97676FF951EBA1F88D" bold="true" box="[98,229,1777,1805]" italics="true" pageId="20" pageNumber="375">Philotheca</emphasis>
section
<emphasis id="5998EAEEE227FF976659F953EAB6F88F" bold="true" box="[340,498,1779,1807]" italics="true" pageId="20" pageNumber="375">Corynonema</emphasis>
</taxonomicName>
</emphasis>
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The placement of
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<emphasis id="5998EAEEE227FF97666EF8B4EAF2F8AC" bold="true" box="[355,438,1812,1836]" italics="true" pageId="20" pageNumber="375">Crowea</emphasis>
</taxonomicName>
,
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<emphasis id="5998EAEEE227FF9766C0F8B4E903F8AC" bold="true" box="[461,583,1812,1836]" italics="true" pageId="20" pageNumber="375">Eriostemon</emphasis>
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and
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<emphasis id="5998EAEEE227FF976582F8B4E846F8AC" bold="true" box="[655,770,1812,1836]" italics="true" pageId="20" pageNumber="375">Philotheca</emphasis>
section
<emphasis id="5998EAEEE227FF9767B2F894EA0EF8CC" bold="true" box="[191,330,1844,1868]" italics="true" pageId="20" pageNumber="375">Corynonema</emphasis>
</taxonomicName>
in a highly supported clade (Clade 4
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), together with strong support for relationships in that clade, improved on previous understanding of the ptDNA relationships of these taxa.
<bibRefCitation id="0F7D4B0DE227FF976383FF15EED0FF4C" author="Duretto MF &amp; Heslewood MM &amp; Bayly MJ" box="[1166,1428,180,204]" pageId="20" pageNumber="375" pagination="107 - 142" refId="ref19961" refString="Duretto MF, Heslewood MM, Bayly MJ (2023) Generic and infrageneric limits of Phebalium and its allies (Rutaceae: Zanthoxyloideae). Australian Systematic Botany 36, 107 - 142. doi: 10.1071 / SB 22018" type="journal article" year="2023">
Duretto
<emphasis id="5998EAEEE227FF9763F8FF14EE71FF4C" bold="true" box="[1269,1333,180,204]" italics="true" pageId="20" pageNumber="375">et al.</emphasis>
(2023)
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also resolved these three taxa in a well-supported clade in two of their analyses, but found somewhat conflicting relationships between the taxa according to different datasets; they found weak support for a sister relationship between
<taxonomicName id="ACEC4D7FE227FF97643FFEF4E8E8FEEC" box="[818,940,340,364]" class="Magnoliopsida" family="Rutaceae" genus="Eriostemon" kingdom="Plantae" order="Sapindales" pageId="20" pageNumber="375" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE227FF97643FFEF4E8E8FEEC" bold="true" box="[818,940,340,364]" italics="true" pageId="20" pageNumber="375">Eriostemon</emphasis>
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and
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<emphasis id="5998EAEEE227FF9764E3FEF4EF05FEEC" bold="true" box="[1006,1089,340,364]" italics="true" pageId="20" pageNumber="375">Crowea</emphasis>
</taxonomicName>
in their combined nrDNAptDNA phylogeny, weak support for a sister relationship between
<taxonomicName id="ACEC4D7FE227FF97643FFE33EFD4FE2C" box="[818,1168,403,428]" class="Magnoliopsida" family="Rutaceae" genus="Philotheca" kingdom="Plantae" order="Sapindales" pageId="20" pageNumber="375" phylum="Tracheophyta" rank="section" section="Corynonema">
<emphasis id="5998EAEEE227FF97643FFE33E8E1FE2B" bold="true" box="[818,933,403,427]" italics="true" pageId="20" pageNumber="375">Philotheca</emphasis>
section
<emphasis id="5998EAEEE227FF976308FE34EFD4FE2C" bold="true" box="[1029,1168,404,428]" italics="true" pageId="20" pageNumber="375">Corynonema</emphasis>
</taxonomicName>
and
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<emphasis id="5998EAEEE227FF9763C1FE34EE5BFE2C" bold="true" box="[1228,1311,404,428]" italics="true" pageId="20" pageNumber="375">Crowea</emphasis>
</taxonomicName>
in their ptDNA phylogeny, and the taxa were not resolved in a clade in their nrDNA phylogeny. We have not identified obvious morphological synapomorphies that unite all three groups, but several morphological studies have proposed a sister relationship between
<taxonomicName id="ACEC4D7FE227FF976332FD94EFD6FDCC" box="[1087,1170,564,588]" class="Magnoliopsida" family="Rutaceae" genus="Crowea" kingdom="Plantae" order="Sapindales" pageId="20" pageNumber="375" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE227FF976332FD94EFD6FDCC" bold="true" box="[1087,1170,564,588]" italics="true" pageId="20" pageNumber="375">Crowea</emphasis>
</taxonomicName>
and
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<emphasis id="5998EAEEE227FF9763E6FD94EE21FDCC" bold="true" box="[1259,1381,564,588]" italics="true" pageId="20" pageNumber="375">Eriostemon</emphasis>
</taxonomicName>
that is incongruent with our placement of
<taxonomicName id="ACEC4D7FE227FF976200FDF4EEC3FDEC" box="[1293,1415,596,620]" class="Magnoliopsida" family="Rutaceae" genus="Eriostemon" kingdom="Plantae" order="Sapindales" pageId="20" pageNumber="375" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE227FF976200FDF4EEC3FDEC" bold="true" box="[1293,1415,596,620]" italics="true" pageId="20" pageNumber="375">Eriostemon</emphasis>
</taxonomicName>
(and
<taxonomicName id="ACEC4D7FE227FF97643FFDD4EF0CFD0C" authority="Sm." authorityName="Sm." box="[818,1096,628,652]" class="Magnoliopsida" family="Rutaceae" genus="Crowea" kingdom="Plantae" order="Sapindales" pageId="20" pageNumber="375" phylum="Tracheophyta" rank="species" species="angustifolia">
<emphasis id="5998EAEEE227FF97643FFDD4EF54FD0C" bold="true" box="[818,1040,628,652]" italics="true" pageId="20" pageNumber="375">Crowea angustifolia</emphasis>
Sm.
</taxonomicName>
; see next paragraph for discussion of that species) as sister to
<taxonomicName id="ACEC4D7FE227FF97637CFD34EE96FD2C" box="[1137,1490,660,684]" class="Magnoliopsida" family="Rutaceae" genus="Philotheca" kingdom="Plantae" order="Sapindales" pageId="20" pageNumber="375" phylum="Tracheophyta" rank="section" section="Corynonema">
<emphasis id="5998EAEEE227FF97637CFD34EFA0FD2C" bold="true" box="[1137,1252,660,684]" italics="true" pageId="20" pageNumber="375">Philotheca</emphasis>
section
<emphasis id="5998EAEEE227FF97624AFD34EE96FD2C" bold="true" box="[1351,1490,660,684]" italics="true" pageId="20" pageNumber="375">Corynonema</emphasis>
</taxonomicName>
(
<bibRefCitation id="0F7D4B0DE227FF976436FD14E8A9FD4C" author="Armstrong JA" box="[827,1005,692,716]" pageId="20" pageNumber="375" refId="ref19072" refString="Armstrong JA (1991) Studies on pollination and systematics in the Australian Rutaceae. PhD thesis, University of New South Wales, Sydney, NSW, Australia. Available at http: // hdl. handle. net / 1959.4 / 59714" type="url" year="1991">Armstrong 1991</bibRefCitation>
;
<bibRefCitation id="0F7D4B0DE227FF9764F7FD14EF31FD4C" author="Bayly MJ" box="[1018,1141,692,716]" pageId="20" pageNumber="375" refId="ref19349" refString="Bayly MJ (2001) A cladistic and biogeographic analysis of Philotheca (Rutaceae) and allied genera. PhD thesis, The University of Melbourne, Melbourne, Vic., Australia. Available at http: // hdl. handle. net / 11343 / 37369" type="url" year="2001">Bayly 2001</bibRefCitation>
).
<taxonomicName id="ACEC4D7FE227FF976381FD14EF9BFD4C" box="[1164,1247,692,716]" class="Magnoliopsida" family="Rutaceae" genus="Crowea" kingdom="Plantae" order="Sapindales" pageId="20" pageNumber="375" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE227FF976381FD14EF9BFD4C" bold="true" box="[1164,1247,692,716]" italics="true" pageId="20" pageNumber="375">Crowea</emphasis>
</taxonomicName>
and
<taxonomicName id="ACEC4D7FE227FF976218FD14EECBFD4C" box="[1301,1423,692,716]" class="Magnoliopsida" family="Rutaceae" genus="Eriostemon" kingdom="Plantae" order="Sapindales" pageId="20" pageNumber="375" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE227FF976218FD14EECBFD4C" bold="true" box="[1301,1423,692,716]" italics="true" pageId="20" pageNumber="375">Eriostemon</emphasis>
</taxonomicName>
differ from the rest of the
<taxonomicName id="ACEC4D7FE227FF976307FD74EFC0FD6C" box="[1034,1156,724,748]" class="Magnoliopsida" family="Rutaceae" genus="Eriostemon" kingdom="Plantae" order="Sapindales" pageId="20" pageNumber="375" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE227FF976307FD74EFC0FD6C" bold="true" box="[1034,1156,724,748]" italics="true" pageId="20" pageNumber="375">Eriostemon</emphasis>
</taxonomicName>
group in having petals with at least three main veins (rather than one main vein) originating from their base (
<bibRefCitation id="0F7D4B0DE227FF9764D0FCB4EF12FCAC" author="Bayly MJ" box="[989,1110,788,812]" pageId="20" pageNumber="375" refId="ref19349" refString="Bayly MJ (2001) A cladistic and biogeographic analysis of Philotheca (Rutaceae) and allied genera. PhD thesis, The University of Melbourne, Melbourne, Vic., Australia. Available at http: // hdl. handle. net / 11343 / 37369" type="url" year="2001">Bayly 2001</bibRefCitation>
).
<bibRefCitation id="0F7D4B0DE227FF976364FCB4EE6EFCAC" author="Armstrong JA" box="[1129,1322,788,812]" pageId="20" pageNumber="375" refId="ref19072" refString="Armstrong JA (1991) Studies on pollination and systematics in the Australian Rutaceae. PhD thesis, University of New South Wales, Sydney, NSW, Australia. Available at http: // hdl. handle. net / 1959.4 / 59714" type="url" year="1991">Armstrong (1991)</bibRefCitation>
also considered
<taxonomicName id="ACEC4D7FE227FF97643FFC94E8C1FCCC" box="[818,901,820,844]" class="Magnoliopsida" family="Rutaceae" genus="Crowea" kingdom="Plantae" order="Sapindales" pageId="20" pageNumber="375" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE227FF97643FFC94E8C1FCCC" bold="true" box="[818,901,820,844]" italics="true" pageId="20" pageNumber="375">Crowea</emphasis>
</taxonomicName>
and
<taxonomicName id="ACEC4D7FE227FF9764B1FC94EF72FCCC" box="[956,1078,820,844]" class="Magnoliopsida" family="Rutaceae" genus="Eriostemon" kingdom="Plantae" order="Sapindales" pageId="20" pageNumber="375" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE227FF9764B1FC94EF72FCCC" bold="true" box="[956,1078,820,844]" italics="true" pageId="20" pageNumber="375">Eriostemon</emphasis>
</taxonomicName>
united by staminal filaments that are arranged pyramidally over the ovary at anthesis, although this was questioned by
<bibRefCitation id="0F7D4B0DE227FF9764F1FCD4EFC3FC0C" author="Bayly MJ" box="[1020,1159,884,908]" pageId="20" pageNumber="375" refId="ref19349" refString="Bayly MJ (2001) A cladistic and biogeographic analysis of Philotheca (Rutaceae) and allied genera. PhD thesis, The University of Melbourne, Melbourne, Vic., Australia. Available at http: // hdl. handle. net / 11343 / 37369" type="url" year="2001">Bayly (2001)</bibRefCitation>
, who argued that the feature is not as striking in
<taxonomicName id="ACEC4D7FE227FF9764E5FC34EF26FC2C" box="[1000,1122,916,940]" class="Magnoliopsida" family="Rutaceae" genus="Eriostemon" kingdom="Plantae" order="Sapindales" pageId="20" pageNumber="375" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE227FF9764E5FC34EF26FC2C" bold="true" box="[1000,1122,916,940]" italics="true" pageId="20" pageNumber="375">Eriostemon</emphasis>
</taxonomicName>
, and that staminal arrangement in
<taxonomicName id="ACEC4D7FE227FF97643FFC14E8E8FC4C" box="[818,940,948,972]" class="Magnoliopsida" family="Rutaceae" genus="Eriostemon" kingdom="Plantae" order="Sapindales" pageId="20" pageNumber="375" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE227FF97643FFC14E8E8FC4C" bold="true" box="[818,940,948,972]" italics="true" pageId="20" pageNumber="375">Eriostemon</emphasis>
</taxonomicName>
is not dissimilar to some species of
<taxonomicName id="ACEC4D7FE227FF976252FC14EE96FC4C" authorityName="sensu Wilson" authorityYear="1971" box="[1375,1490,948,972]" class="Magnoliopsida" family="Rutaceae" genus="Philotheca" kingdom="Plantae" order="Sapindales" pageId="20" pageNumber="375" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE227FF976252FC14EE96FC4C" bold="true" box="[1375,1490,948,972]" italics="true" pageId="20" pageNumber="375">Philotheca</emphasis>
</taxonomicName>
(=
<taxonomicName id="ACEC4D7FE227FF976459FC74EE2CFC6C" authority="Paul G. Wilson" box="[852,1384,979,1004]" class="Magnoliopsida" family="Rutaceae" genus="Eriostemon" kingdom="Plantae" order="Sapindales" pageId="20" pageNumber="375" phylum="Tracheophyta" rank="section" section="Nigrostipulae">
<emphasis id="5998EAEEE227FF976459FC74E88AFC6C" bold="true" box="[852,974,980,1004]" italics="true" pageId="20" pageNumber="375">Eriostemon</emphasis>
section
<emphasis id="5998EAEEE227FF976321FC73EFF9FC6B" bold="true" box="[1068,1213,979,1003]" italics="true" pageId="20" pageNumber="375">Nigrostipulae</emphasis>
Paul G.Wilson
</taxonomicName>
). In addition, chromosome numbers for
<taxonomicName id="ACEC4D7FE227FF9763C7FC54EE59FB8C" box="[1226,1309,1012,1036]" class="Magnoliopsida" family="Rutaceae" genus="Crowea" kingdom="Plantae" order="Sapindales" pageId="20" pageNumber="375" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE227FF9763C7FC54EE59FB8C" bold="true" box="[1226,1309,1012,1036]" italics="true" pageId="20" pageNumber="375">Crowea</emphasis>
</taxonomicName>
(
<emphasis id="5998EAEEE227FF976231FC54EE0DFB8B" bold="true" box="[1340,1353,1012,1035]" italics="true" pageId="20" pageNumber="375">n</emphasis>
= 19) and
<taxonomicName id="ACEC4D7FE227FF97643FFBB4E8E8FBAC" box="[818,940,1044,1068]" class="Magnoliopsida" family="Rutaceae" genus="Eriostemon" kingdom="Plantae" order="Sapindales" pageId="20" pageNumber="375" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE227FF97643FFBB4E8E8FBAC" bold="true" box="[818,940,1044,1068]" italics="true" pageId="20" pageNumber="375">Eriostemon</emphasis>
</taxonomicName>
(
<emphasis id="5998EAEEE227FF9764CFFBB4E88BFBAB" bold="true" box="[962,975,1044,1067]" italics="true" pageId="20" pageNumber="375">n</emphasis>
= 17) are unique in the
<taxonomicName id="ACEC4D7FE227FF97620FFBB4EE38FBAC" box="[1282,1404,1044,1068]" class="Magnoliopsida" family="Rutaceae" genus="Eriostemon" kingdom="Plantae" order="Sapindales" pageId="20" pageNumber="375" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE227FF97620FFBB4EE38FBAC" bold="true" box="[1282,1404,1044,1068]" italics="true" pageId="20" pageNumber="375">Eriostemon</emphasis>
</taxonomicName>
group, where
<emphasis id="5998EAEEE227FF976488FB94E8D6FBCB" bold="true" box="[901,914,1076,1099]" italics="true" pageId="20" pageNumber="375">n</emphasis>
is most commonly 14 (
<taxonomicName id="ACEC4D7FE227FF9763B0FB93EE73FBCB" box="[1213,1335,1075,1099]" class="Magnoliopsida" family="Rutaceae" genus="Asterolasia" kingdom="Plantae" order="Sapindales" pageId="20" pageNumber="375" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE227FF9763B0FB93EE73FBCB" bold="true" box="[1213,1335,1075,1099]" italics="true" pageId="20" pageNumber="375">Asterolasia</emphasis>
</taxonomicName>
,
<taxonomicName id="ACEC4D7FE227FF976241FB93EE8EFBCB" box="[1356,1482,1075,1099]" class="Magnoliopsida" family="Rutaceae" genus="Geleznowia" kingdom="Plantae" order="Sapindales" pageId="20" pageNumber="375" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE227FF976241FB93EE8EFBCB" bold="true" box="[1356,1482,1075,1099]" italics="true" pageId="20" pageNumber="375">Geleznowia</emphasis>
</taxonomicName>
,
<taxonomicName id="ACEC4D7FE227FF97643FFBF4E88DFBEC" box="[818,969,1108,1132]" class="Magnoliopsida" family="Rutaceae" genus="Drummondita" kingdom="Plantae" order="Sapindales" pageId="20" pageNumber="375" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE227FF97643FFBF4E88DFBEC" bold="true" box="[818,969,1108,1132]" italics="true" pageId="20" pageNumber="375">Drummondita</emphasis>
</taxonomicName>
,
<taxonomicName id="ACEC4D7FE227FF9764E9FBF4EF1BFBEC" box="[996,1119,1108,1132]" class="Magnoliopsida" family="Rutaceae" genus="Muiriantha" kingdom="Plantae" order="Sapindales" pageId="20" pageNumber="375" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE227FF9764E9FBF4EF1BFBEC" bold="true" box="[996,1119,1108,1132]" italics="true" pageId="20" pageNumber="375">Muiriantha</emphasis>
</taxonomicName>
,
<taxonomicName id="ACEC4D7FE227FF976376FBF4EFAAFBEC" authorityName="sensu Wilson" authorityYear="1971" box="[1147,1262,1108,1132]" class="Magnoliopsida" family="Rutaceae" genus="Philotheca" kingdom="Plantae" order="Sapindales" pageId="20" pageNumber="375" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE227FF976376FBF4EFAAFBEC" bold="true" box="[1147,1262,1108,1132]" italics="true" pageId="20" pageNumber="375">Philotheca</emphasis>
</taxonomicName>
sectin
<taxonomicName id="ACEC4D7FE227FF97625AFBF4EE8EFBEC" authorityName="sensu Wilson" authorityYear="1971" box="[1367,1482,1108,1132]" class="Magnoliopsida" family="Rutaceae" genus="Philotheca" kingdom="Plantae" order="Sapindales" pageId="20" pageNumber="375" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE227FF97625AFBF4EE8EFBEC" bold="true" box="[1367,1482,1108,1132]" italics="true" pageId="20" pageNumber="375">Philotheca</emphasis>
</taxonomicName>
,
<emphasis id="5998EAEEE227FF97643FFBD4E804FB0B" bold="true" box="[818,832,1140,1163]" italics="true" pageId="20" pageNumber="375">
<collectionCode id="0DFDAE39E227FF97643FFBD4E804FB0B" box="[818,832,1140,1163]" country="France" lsid="urn:lsid:biocol.org:col:15763" name="Museum National d' Histoire Naturelle, Paris (MNHN) - Vascular Plants" pageId="20" pageNumber="375" type="Herbarium">P</collectionCode>
</emphasis>
. section
<taxonomicName id="ACEC4D7FE227FF9764CEFBD4EF6FFB0C" box="[963,1067,1140,1164]" pageId="20" pageNumber="375" rank="section" section="Erionema">
<emphasis id="5998EAEEE227FF9764CEFBD4EF6FFB0C" bold="true" box="[963,1067,1140,1164]" italics="true" pageId="20" pageNumber="375">Erionema</emphasis>
</taxonomicName>
,
<emphasis id="5998EAEEE227FF976344FBD4EF13FB0B" bold="true" box="[1097,1111,1140,1163]" italics="true" pageId="20" pageNumber="375">
<collectionCode id="0DFDAE39E227FF976344FBD4EF13FB0B" box="[1097,1111,1140,1163]" country="France" lsid="urn:lsid:biocol.org:col:15763" name="Museum National d' Histoire Naturelle, Paris (MNHN) - Vascular Plants" pageId="20" pageNumber="375" type="Herbarium">P</collectionCode>
</emphasis>
. section
<taxonomicName id="ACEC4D7FE227FF9763D7FBD4EE3DFB0C" baseAuthorityName="Bayly" baseAuthorityYear="2001" box="[1242,1401,1140,1164]" pageId="20" pageNumber="375" rank="section" section="Cyanochlamys">
<emphasis id="5998EAEEE227FF9763D7FBD4EE3DFB0C" bold="true" box="[1242,1401,1140,1164]" italics="true" pageId="20" pageNumber="375">Cyanochlamys</emphasis>
</taxonomicName>
, some
<taxonomicName id="ACEC4D7FE227FF97643FFB33E8ECFB2B" box="[818,936,1171,1195]" class="Magnoliopsida" family="Rutaceae" genus="Diplolaena" kingdom="Plantae" order="Sapindales" pageId="20" pageNumber="375" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE227FF97643FFB33E8ECFB2B" bold="true" box="[818,936,1171,1195]" italics="true" pageId="20" pageNumber="375">Diplolaena</emphasis>
</taxonomicName>
) or 16 (
<taxonomicName id="ACEC4D7FE227FF976345FB34EFD6FB2C" box="[1096,1170,1172,1196]" class="Magnoliopsida" family="Rutaceae" genus="Correa" kingdom="Plantae" order="Sapindales" pageId="20" pageNumber="375" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE227FF976345FB34EFD6FB2C" bold="true" box="[1096,1170,1172,1196]" italics="true" pageId="20" pageNumber="375">Correa</emphasis>
</taxonomicName>
,
<taxonomicName id="ACEC4D7FE227FF9763BAFB34EE64FB2C" box="[1207,1312,1172,1196]" class="Magnoliopsida" family="Rutaceae" genus="Leionema" kingdom="Plantae" order="Sapindales" pageId="20" pageNumber="375" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE227FF9763BAFB34EE64FB2C" bold="true" box="[1207,1312,1172,1196]" italics="true" pageId="20" pageNumber="375">Leionema</emphasis>
</taxonomicName>
,
<taxonomicName id="ACEC4D7FE227FF976249FB33EE8EFB2B" box="[1348,1482,1171,1195]" class="Magnoliopsida" family="Rutaceae" genus="Nematolepis" kingdom="Plantae" order="Sapindales" pageId="20" pageNumber="375" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE227FF976249FB33EE8EFB2B" bold="true" box="[1348,1482,1171,1195]" italics="true" pageId="20" pageNumber="375">Nematolepis</emphasis>
</taxonomicName>
,
<taxonomicName id="ACEC4D7FE227FF97643FFB14E8E1FB4C" box="[818,933,1204,1228]" class="Magnoliopsida" family="Rutaceae" genus="Phebalium" kingdom="Plantae" order="Sapindales" pageId="20" pageNumber="375" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE227FF97643FFB14E8E1FB4C" bold="true" box="[818,933,1204,1228]" italics="true" pageId="20" pageNumber="375">Phebalium</emphasis>
</taxonomicName>
) (
<bibRefCitation id="0F7D4B0DE227FF9764CDFB14EFCAFB4C" author="Smith-White S" box="[960,1166,1204,1228]" pageId="20" pageNumber="375" pagination="287 - 303" refId="ref22519" refString="Smith-White S (1954) Chromosome numbers in the Boronieae (Rutaceae) and their bearing on the evolutionary development of the tribe in the Australian flora. Australian Journal of Botany 2, 287 - 303. doi: 10.1071 / BT 9540287" type="journal article" year="1954">Smith-White 1954</bibRefCitation>
;
<bibRefCitation id="0F7D4B0DE227FF976390FB14EE11FB4C" author="Armstrong JA" box="[1181,1365,1204,1228]" pageId="20" pageNumber="375" refId="ref19072" refString="Armstrong JA (1991) Studies on pollination and systematics in the Australian Rutaceae. PhD thesis, University of New South Wales, Sydney, NSW, Australia. Available at http: // hdl. handle. net / 1959.4 / 59714" type="url" year="1991">Armstrong 1991</bibRefCitation>
;
<bibRefCitation id="0F7D4B0DE227FF976268FB14E8AAFB6C" author="Stace HM &amp; Armstrong JA" pageId="20" pageNumber="375" pagination="501 - 505" refId="ref22563" refString="Stace HM, Armstrong JA (1992) New chromosome numbers for Rutaceae. Australian Systematic Botany 5, 501 - 505. doi: 10.1071 / SB 9920501" type="journal article" year="1992">Stace and Armstrong 1992</bibRefCitation>
;
<bibRefCitation id="0F7D4B0DE227FF97630FFB74EFC2FB6C" author="Bayly MJ" box="[1026,1158,1236,1260]" pageId="20" pageNumber="375" refId="ref19349" refString="Bayly MJ (2001) A cladistic and biogeographic analysis of Philotheca (Rutaceae) and allied genera. PhD thesis, The University of Melbourne, Melbourne, Vic., Australia. Available at http: // hdl. handle. net / 11343 / 37369" type="url" year="2001">Bayly 2001</bibRefCitation>
). Chromosome numbers for species in
<taxonomicName id="ACEC4D7FE227FF9764A8FB53EFBBFA8C" box="[933,1279,1267,1292]" class="Magnoliopsida" family="Rutaceae" genus="Philotheca" kingdom="Plantae" order="Sapindales" pageId="20" pageNumber="375" phylum="Tracheophyta" rank="section" section="Corynonema">
<emphasis id="5998EAEEE227FF9764A8FB53EF5CFA8B" bold="true" box="[933,1048,1267,1291]" italics="true" pageId="20" pageNumber="375">Philotheca</emphasis>
section
<emphasis id="5998EAEEE227FF976379FB54EFBBFA8C" bold="true" box="[1140,1279,1268,1292]" italics="true" pageId="20" pageNumber="375">Corynonema</emphasis>
</taxonomicName>
are unknown, and future cytological investigation of this group would provide valuable insight into how well the cytology of this section aligns with
<taxonomicName id="ACEC4D7FE227FF9764B9FAF4EF43FAEC" box="[948,1031,1364,1388]" class="Magnoliopsida" family="Rutaceae" genus="Crowea" kingdom="Plantae" order="Sapindales" pageId="20" pageNumber="375" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE227FF9764B9FAF4EF43FAEC" bold="true" box="[948,1031,1364,1388]" italics="true" pageId="20" pageNumber="375">Crowea</emphasis>
</taxonomicName>
and
<taxonomicName id="ACEC4D7FE227FF976333FAF4EFFCFAEC" box="[1086,1208,1364,1388]" class="Magnoliopsida" family="Rutaceae" genus="Eriostemon" kingdom="Plantae" order="Sapindales" pageId="20" pageNumber="375" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE227FF976333FAF4EFFCFAEC" bold="true" box="[1086,1208,1364,1388]" italics="true" pageId="20" pageNumber="375">Eriostemon</emphasis>
</taxonomicName>
.
</paragraph>
<paragraph id="6B5336FCE227FF96645FFAD4EA64FCCC" blockId="20.[818,1490,180,1932]" lastBlockId="21.[98,770,180,844]" lastPageId="21" lastPageNumber="376" pageId="20" pageNumber="375">
Our recovery of
<taxonomicName id="ACEC4D7FE227FF976309FAD4EF13FA0C" box="[1028,1111,1396,1420]" class="Magnoliopsida" family="Rutaceae" genus="Crowea" kingdom="Plantae" order="Sapindales" pageId="20" pageNumber="375" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE227FF976309FAD4EF13FA0C" bold="true" box="[1028,1111,1396,1420]" italics="true" pageId="20" pageNumber="375">Crowea</emphasis>
</taxonomicName>
as polyphyletic in ptDNA analyses is perhaps not surprising.
<bibRefCitation id="0F7D4B0DE227FF976340FA35EE75FA2C" author="Duretto MF &amp; Heslewood MM &amp; Bayly MJ" box="[1101,1329,1428,1452]" pageId="20" pageNumber="375" pagination="107 - 142" refId="ref19961" refString="Duretto MF, Heslewood MM, Bayly MJ (2023) Generic and infrageneric limits of Phebalium and its allies (Rutaceae: Zanthoxyloideae). Australian Systematic Botany 36, 107 - 142. doi: 10.1071 / SB 22018" type="journal article" year="2023">
Duretto
<emphasis id="5998EAEEE227FF9763AAFA34EF9AFA2C" bold="true" box="[1191,1246,1428,1452]" italics="true" pageId="20" pageNumber="375">et al.</emphasis>
(2023)
</bibRefCitation>
found support for the monophyly of
<taxonomicName id="ACEC4D7FE227FF97633DFA14EFC7FA4C" box="[1072,1155,1460,1484]" class="Magnoliopsida" family="Rutaceae" genus="Crowea" kingdom="Plantae" order="Sapindales" pageId="20" pageNumber="375" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE227FF97633DFA14EFC7FA4C" bold="true" box="[1072,1155,1460,1484]" italics="true" pageId="20" pageNumber="375">Crowea</emphasis>
</taxonomicName>
to vary between nrDNA and plastid datasets, with ptDNA suggesting that the genus may be non-monophyletic because of the only western Australian species,
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<emphasis id="5998EAEEE227FF976480F9B4EF69F9AB" bold="true" box="[909,1069,1555,1580]" italics="true" pageId="20" pageNumber="375">C. angustifolia</emphasis>
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(using different accessions to the current study), forming a polytomy with the eastern Australian
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<emphasis id="5998EAEEE227FF97643FF9F4E8C1F9EC" bold="true" box="[818,901,1620,1644]" italics="true" pageId="20" pageNumber="375">Crowea</emphasis>
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and
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<emphasis id="5998EAEEE227FF9764B4F9F4EF77F9EC" bold="true" box="[953,1075,1620,1644]" italics="true" pageId="20" pageNumber="375">Eriostemon</emphasis>
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. Our results have improved the clarity of ptDNA relationships in this group and confirmed that ptDNA suggests
<taxonomicName id="ACEC4D7FE227FF9764EBF934EF7DF92C" box="[998,1081,1684,1708]" class="Magnoliopsida" family="Rutaceae" genus="Crowea" kingdom="Plantae" order="Sapindales" pageId="20" pageNumber="375" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE227FF9764EBF934EF7DF92C" bold="true" box="[998,1081,1684,1708]" italics="true" pageId="20" pageNumber="375">Crowea</emphasis>
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is non-monophyletic with the placement of
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<emphasis id="5998EAEEE227FF976494F914EF7BF94B" bold="true" box="[921,1087,1715,1740]" italics="true" pageId="20" pageNumber="375">C. angustifolia</emphasis>
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as sister to
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<emphasis id="5998EAEEE227FF9763D7F914EE10F94C" bold="true" box="[1242,1364,1716,1740]" italics="true" pageId="20" pageNumber="375">Eriostemon</emphasis>
</taxonomicName>
with high support. However, our phylogenetic analyses of nrDNA sequences (see the Supplementary Methods and results section) mirror the findings of
<bibRefCitation id="0F7D4B0DE227FF976369F8B4EE0DF8AC" author="Duretto MF &amp; Heslewood MM &amp; Bayly MJ" box="[1124,1353,1811,1836]" pageId="20" pageNumber="375" pagination="107 - 142" refId="ref19961" refString="Duretto MF, Heslewood MM, Bayly MJ (2023) Generic and infrageneric limits of Phebalium and its allies (Rutaceae: Zanthoxyloideae). Australian Systematic Botany 36, 107 - 142. doi: 10.1071 / SB 22018" type="journal article" year="2023">
Duretto
<emphasis id="5998EAEEE227FF9763B2F8B4EFB2F8AB" bold="true" box="[1215,1270,1811,1835]" italics="true" pageId="20" pageNumber="375">et al.</emphasis>
(2023)
</bibRefCitation>
and suggest the genus is monophyletic. Such cytonuclear discrepancy may arise from one, or a combination of, incomplete lineage sorting (
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), horizontal gene transfer and organellar genome capture (
<bibRefCitation id="0F7D4B0DE226FF9667C1FF14EAB9FF4C" author="Rieseberg LH &amp; Soltis DE" box="[204,509,180,204]" pageId="21" pageNumber="376" pagination="65 - 84" refId="ref22130" refString="Rieseberg LH, Soltis DE (1991) Phylogenetic consequences of cytoplasmic gene flow in plants. Evolutionary Trends in Plants 5, 65 - 84." type="journal article" year="1991">Rieseberg and Soltis 1991</bibRefCitation>
;
<bibRefCitation id="0F7D4B0DE226FF96651DFF14E9BEFF4C" author="Tsitrone A &amp; Kirkpatrick M &amp; Levin DA" box="[528,762,180,204]" pageId="21" pageNumber="376" pagination="1776 - 1782" refId="ref22928" refString="Tsitrone A, Kirkpatrick M, Levin DA (2003) A model for chloroplast capture. Evolution 57, 1776 - 1782. doi: 10.1111 / j. 0014 - 3820.2003. tb 00585. x" type="journal article" year="2003">
Tsitrone
<emphasis id="5998EAEEE226FF966574FF14E9F0FF4C" bold="true" box="[633,692,180,204]" italics="true" pageId="21" pageNumber="376">et al.</emphasis>
2003
</bibRefCitation>
;
<bibRefCitation id="0F7D4B0DE226FF96676FFF74EAD8FF6C" author="Toews DPL &amp; Brelsford A" box="[98,412,212,236]" pageId="21" pageNumber="376" pagination="3907 - 3930" refId="ref22888" refString="Toews DPL, Brelsford A (2012) The biogeography of mitochondrial and nuclear discordance in animals. Molecular Ecology 21, 3907 - 3930. doi: 10.1111 / j. 1365 - 294 X. 2012.05664. x" type="journal article" year="2012">Toews and Brelsford 2012</bibRefCitation>
). Given that both
<taxonomicName id="ACEC4D7FE226FF966585FF74EBF5FE8C" pageId="21" pageNumber="376">
<emphasis id="5998EAEEE226FF966585FF74E846FF6C" bold="true" box="[648,770,212,236]" italics="true" pageId="21" pageNumber="376">Eriostemon</emphasis>
species
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occur only in eastern
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, it is unlikely that their sister placement to
<taxonomicName id="ACEC4D7FE226FF96667BFEB4E950FEAC" box="[374,532,276,300]" class="Magnoliopsida" family="Rutaceae" genus="Crowea" kingdom="Plantae" order="Sapindales" pageId="21" pageNumber="376" phylum="Tracheophyta" rank="species" species="angustifolia">
<emphasis id="5998EAEEE226FF96667BFEB4E950FEAC" bold="true" box="[374,532,276,300]" italics="true" pageId="21" pageNumber="376">C. angustifolia</emphasis>
</taxonomicName>
in ptDNA trees is the result of the last two processes, as they require gene flow between the genera (or their common ancestors) to occur; on the basis of the current distribution of taxa, it is simpler to infer that there has been no historical reconnection between
<taxonomicName id="ACEC4D7FE226FF9667C1FE14EA34FE4C" box="[204,368,436,460]" class="Magnoliopsida" family="Rutaceae" genus="Crowea" kingdom="Plantae" order="Sapindales" pageId="21" pageNumber="376" phylum="Tracheophyta" rank="species" species="angustifolia">
<emphasis id="5998EAEEE226FF9667C1FE14EA34FE4C" bold="true" box="[204,368,436,460]" italics="true" pageId="21" pageNumber="376">C. angustifolia</emphasis>
</taxonomicName>
and
<taxonomicName id="ACEC4D7FE226FF9666BCFE14E96FFE4C" box="[433,555,436,460]" class="Magnoliopsida" family="Rutaceae" genus="Eriostemon" kingdom="Plantae" order="Sapindales" pageId="21" pageNumber="376" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE226FF9666BCFE14E96FFE4C" bold="true" box="[433,555,436,460]" italics="true" pageId="21" pageNumber="376">Eriostemon</emphasis>
</taxonomicName>
, rather than infer that there has been exclusive connectivity between the two (across the whole of
<collectingCountry id="13FB766CE226FF96665CFE54EAFCFD8C" box="[337,440,500,524]" name="Australia" pageId="21" pageNumber="376">Australia</collectingCountry>
) in the absence of gene flow with the other species of
<taxonomicName id="ACEC4D7FE226FF966689FDB4EA93FDAC" box="[388,471,532,556]" class="Magnoliopsida" family="Rutaceae" genus="Crowea" kingdom="Plantae" order="Sapindales" pageId="21" pageNumber="376" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE226FF966689FDB4EA93FDAC" bold="true" box="[388,471,532,556]" italics="true" pageId="21" pageNumber="376">Crowea</emphasis>
</taxonomicName>
. Although we cannot rule out the latter scenario, we feel a more likely explanation involves
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of the plastome of
<taxonomicName id="ACEC4D7FE226FF9666C5FDF4E92CFDEB" box="[456,616,595,620]" class="Magnoliopsida" family="Rutaceae" genus="Crowea" kingdom="Plantae" order="Sapindales" pageId="21" pageNumber="376" phylum="Tracheophyta" rank="species" species="angustifolia">
<emphasis id="5998EAEEE226FF9666C5FDF4E92CFDEB" bold="true" box="[456,616,595,620]" italics="true" pageId="21" pageNumber="376">C. angustifolia</emphasis>
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, because this matches the simpler scenario outlined above and is consistent with
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having a greater influence on plastid markers due to larger effective population sizes, and thus longer coalescence times than for nrDNA markers that are subject to concerted evolution (
<bibRefCitation id="0F7D4B0DE226FF966663FD54E9E0FC8C" author="Buckler ES &amp; Holtsford TP" box="[366,676,756,780]" pageId="21" pageNumber="376" pagination="612 - 622" refId="ref19616" refString="Buckler ES, Holtsford TP (1996) Zea systematics: ribosomal ITS evidence. Molecular Biology and Evolution 13, 612 - 622. doi: 10.1093 / oxfordjournals. molbev. a 025621" type="journal article" year="1996">Buckler and Holtsford 1996</bibRefCitation>
;
<bibRefCitation id="0F7D4B0DE226FF9665BFFD54EB9CFCAC" author="Clowes C &amp; Fowler RM &amp; Fahey PS &amp; Kellermann J &amp; Brown GK &amp; Bayly MJ" pageId="21" pageNumber="376" pagination="95 - 119" refId="ref19651" refString="Clowes C, Fowler RM, Fahey PS, Kellermann J, Brown GK, Bayly MJ (2022) Big trees of small baskets: phylogeny of the Australian genus Spyridium (Rhamnaceae: Pomaderreae), focusing on biogeographic patterns and species circumscriptions. Australian Systematic Botany 35, 95 - 119. doi: 10.1071 / SB 21034" type="journal article" year="2022">
Clowes
<emphasis id="5998EAEEE226FF96676FFCB4EBDCFCAB" bold="true" box="[98,152,787,811]" italics="true" pageId="21" pageNumber="376">et al.</emphasis>
2022
</bibRefCitation>
). Further work is required to deduce the cause of this discordance.
</paragraph>
</subSubSection>
</treatment>
</document>

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@ -1,66 +1,66 @@
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Future classification of
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<emphasis id="5998EAEEE229FF9966A9FB1EE969FB5A" bold="true" box="[420,557,1214,1242]" italics="true" pageId="26" pageNumber="381">Philotheca</emphasis>
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@ -147,7 +147,7 @@ section
<emphasis id="5998EAEEE229FF996556F9F1E9BEF9E9" bold="true" box="[603,762,1617,1641]" italics="true" pageId="26" pageNumber="381">Cyanochlamys</emphasis>
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, contrasting support for monophyly (ptDNA;
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)
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@ -159,7 +159,7 @@ section
</taxonomicName>
.
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Within Clade 1, we have identified three ptDNA lineages of
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<emphasis id="5998EAEEE229FF996788F891EBBCF8C9" bold="true" box="[133,248,1841,1865]" italics="true" pageId="26" pageNumber="381">Philotheca</emphasis>
@ -183,10 +183,7 @@ and
section
<emphasis id="5998EAEEE229FF9966E2F8D1E913F809" bold="true" box="[495,599,1905,1929]" italics="true" pageId="26" pageNumber="381">Erionema</emphasis>
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, supported as
</paragraph>
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monophyletic and sister to the rest of the clade; (2)
, supported as monophyletic and sister to the rest of the clade; (2)
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<emphasis id="5998EAEEE229FF99643FFF73E8E1FF6B" bold="true" box="[818,933,211,235]" italics="true" pageId="26" pageNumber="381">Philotheca</emphasis>
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Interpreting the backbone polytomy in the
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group
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<emphasis id="5998EAEEE22BFF9B678FF98EEB8DF9EF" bold="true" pageId="24" pageNumber="379">Is evolution multifurcating or are our data limited?</emphasis>
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The amount of sequence data employed in our analyses represents a ~14-fold increase in dataset size compared with the most recent other studies on the group (106 885 bp in our phylogenomic alignment
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. 7579 bp in
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Appelhans
<emphasis id="5998EAEEE22BFF9B6581F974E986F96B" bold="true" box="[652,706,1747,1771]" italics="true" pageId="24" pageNumber="379">et al.</emphasis>
2021
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and 5145 bp in
<bibRefCitation id="0F7D4B0DE22BFF9B6611F954EAB8F88C" author="Duretto MF &amp; Heslewood MM &amp; Bayly MJ" box="[284,508,1780,1804]" pageId="24" pageNumber="379" pagination="107 - 142" refId="ref19961" refString="Duretto MF, Heslewood MM, Bayly MJ (2023) Generic and infrageneric limits of Phebalium and its allies (Rutaceae: Zanthoxyloideae). Australian Systematic Botany 36, 107 - 142. doi: 10.1071 / SB 22018" type="journal article" year="2023">
Duretto
<emphasis id="5998EAEEE22BFF9B6671F954EAF3F88C" bold="true" box="[380,439,1780,1804]" italics="true" pageId="24" pageNumber="379">et al.</emphasis>
2023
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). Even with this large dataset, we were unable to resolve backbone relationships between four supported major lineages of genera (
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). Across all analyses, these lineages were arranged on very short, unsupported branches that we have treated as a polytomy. Short divergences in molecular phylogenies may be explained by both biological and experimental causes. Biologically, polytomies can be the result of true multifurcations (so-called
<emphasis id="5998EAEEE22BFF9B64E8FEB4EF5CFEAC" bold="true" box="[997,1048,276,300]" italics="true" pageId="24" pageNumber="379">hard</emphasis>
polytomies) caused by rapid radiation and simultaneous divergence events. However, polytomies may arise as a result of reaching the limit of resolution in the estimated tree (so-called
<emphasis id="5998EAEEE22BFF9B634AFED4EF2AFE0C" bold="true" box="[1095,1134,372,396]" italics="true" pageId="24" pageNumber="379">soft</emphasis>
polytomies) caused by using an insufficient amount of sequence data or sequence variation, conflicting data, or inappropriate methods of analysis (
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;
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;
<bibRefCitation id="0F7D4B0DE22BFF9B6268FE74E82FFD8C" author="Lin GN &amp; Zhang C &amp; Xu D" pageId="24" pageNumber="379" pagination="2" refId="ref21438" refString="Lin GN, Zhang C, Xu D (2011) Polytomy identification in microbial phylogenetic reconstruction. BMC Systems Biology 5, S 2. doi: 10.1186 / 1752 - 0509 - 5 - S 3 - S 2" type="journal article" year="2011">
Lin
<emphasis id="5998EAEEE22BFF9B6298FE74EE95FE6C" bold="true" box="[1429,1489,468,492]" italics="true" pageId="24" pageNumber="379">et al.</emphasis>
2011
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;
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).
</paragraph>
<paragraph id="6B5336FCE22BFF9B645FFDB4EED8FD0C" blockId="24.[818,1491,180,1932]" pageId="24" pageNumber="379">In ptDNA, conflicting phylogenetic signal may be attributed to topological incongruence among gene trees, noise introduced by site saturation, or applying substitution models uniformly across genes with differing rates of evolution.</paragraph>
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The first of these causes belongs to the species tree paradigm (
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), in which systematists infer species trees from gene trees under the multispecies coalescent (
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) model that assumes free recombination between unlinked genes (
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). Because of this assumption, coalescence-based approaches have generally been applied to studies utilising unlinked nuclear genes. However, several studies have reported conflicting phylogenetic signals among plastid genes (e.g.
<bibRefCitation id="0F7D4B0DE22BFF9B6318FC34EF9BFC2C" author="Zeng L &amp; Zhang Q &amp; Sun R &amp; Kong H &amp; Zhang N &amp; Ma H" box="[1045,1247,916,940]" pageId="24" pageNumber="379" pagination="4956" refId="ref23328" refString="Zeng L, Zhang Q, Sun R, Kong H, Zhang N, Ma H (2014) Resolution of deep angiosperm phylogeny using conserved nuclear genes and estimates of early divergence times. Nature Communications 5, 4956. doi: 10.1038 / ncomms 5956" type="journal article" year="2014">
Zeng
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2014
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;
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Foster
<emphasis id="5998EAEEE22BFF9B624BFC34EEC7FC2C" bold="true" box="[1350,1411,916,940]" italics="true" pageId="24" pageNumber="379">et al.</emphasis>
2018
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;
<bibRefCitation id="0F7D4B0DE22BFF9B643FFC14EF7DFC4C" author="Goncalves DJP &amp; Simpson BB &amp; Ortiz EM &amp; Shimizu GH &amp; Jansen RK" box="[818,1081,948,972]" pageId="24" pageNumber="379" pagination="219 - 232" refId="ref20261" refString="Goncalves DJP, Simpson BB, Ortiz EM, Shimizu GH, Jansen RK (2019) Incongruence between gene trees and species trees and phylogenetic signal variation in plastid genes. Molecular Phylogenetics and Evolution 138, 219 - 232. doi: 10.1016 / j. ympev. 2019.05.022" type="journal article" year="2019">
Gonçalves
<emphasis id="5998EAEEE22BFF9B64BCFC14E8B4FC4C" bold="true" box="[945,1008,948,972]" italics="true" pageId="24" pageNumber="379">et al.</emphasis>
2019
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), and the topic of whether these methods are suitable for analysing plastid loci (which have historically been treated as linked;
<bibRefCitation id="0F7D4B0DE22BFF9B63DCFC54EE12FB8C" author="Doyle JJ" box="[1233,1366,1012,1036]" pageId="24" pageNumber="379" pagination="537 - 553" refId="ref19796" refString="Doyle JJ (1997) Trees within trees: genes and species, molecules and morphology. Systematic Biology 46, 537 - 553. doi: 10.1093 / sysbio / 46.3. 537" type="journal article" year="1997">Doyle 1997</bibRefCitation>
) has been subject to recent debate (
<bibRefCitation id="0F7D4B0DE22BFF9B6362FBB4EE3EFBAC" author="Goncalves DJP &amp; Jansen RK &amp; Ruhlman TA &amp; Mandel JR" box="[1135,1402,1044,1068]" pageId="24" pageNumber="379" pagination="106903" refId="ref20312" refString="Goncalves DJP, Jansen RK, Ruhlman TA, Mandel JR (2020) Under the rug: abandoning persistent misconceptions that obfuscate organelle evolution. Molecular Phylogenetics and Evolution 151, 106903. doi: 10.1016 / j. ympev. 2020.106903" type="journal article" year="2020">
Gonçalves
<emphasis id="5998EAEEE22BFF9B63FDFBB4EE74FBAC" bold="true" box="[1264,1328,1044,1068]" italics="true" pageId="24" pageNumber="379">et al.</emphasis>
2020
</bibRefCitation>
;
<bibRefCitation id="0F7D4B0DE22BFF9B629CFBB4E82FFBCC" author="Doyle JJ" pageId="24" pageNumber="379" pagination="476 - 489" refId="ref19830" refString="Doyle JJ (2021) Defining coalescent genes: theory meets practice in organelle phylogenomics. Systematic Biology 71, 476 - 489. doi: 10.1093 / sysbio / syab 053" type="journal article" year="2021">Doyle 2021</bibRefCitation>
). Although our analysis of tree space identified three different gene-tree clusters, estimation of the cluster phylogenies produced congruent topologies that differed mainly in their levels of branch support; thus, we found no evidence for conflicting signals among gene trees. This may reflect a failure of Robinson-Fould distances to adequately identify meaningful phylogenetic similarity (see
<bibRefCitation id="0F7D4B0DE22BFF9B621CFB54EEDFFA8C" author="Smith MR" box="[1297,1435,1268,1292]" pageId="24" pageNumber="379" pagination="1255 - 1270" refId="ref22491" refString="Smith MR (2022) Robust Analysis of Phylogenetic Tree Space. Systematic Biology 71, 1255 - 1270. doi: 10.1093 / sysbio / syab 100" type="journal article" year="2022">Smith 2022</bibRefCitation>
), or simply show that there is no strong conflict among gene trees in each cluster. Instead of differences in tree topology among clusters, the identification of three gene-tree clusters may be the result of differing levels of phylogenetic informativeness across gene trees, with Cluster 1 containing, on average, the most informative genes with generally better-resolved topologies than for Clusters 2 and 3. We attribute the generally lower branch-support values displayed by our ASTRAL phylogeny to the lower resolving power of individual genes
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<emphasis id="5998EAEEE22BFF9B64AAF994E8F7F9CB" bold="true" box="[935,947,1588,1611]" italics="true" pageId="24" pageNumber="379">v</emphasis>
. concatenated
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genes (
<bibRefCitation id="0F7D4B0DE22BFF9B63B9F994EE73F9CC" author="Doyle JJ" box="[1204,1335,1588,1612]" pageId="24" pageNumber="379" pagination="476 - 489" refId="ref19830" refString="Doyle JJ (2021) Defining coalescent genes: theory meets practice in organelle phylogenomics. Systematic Biology 71, 476 - 489. doi: 10.1093 / sysbio / syab 053" type="journal article" year="2021">Doyle 2021</bibRefCitation>
), rather than conflicting gene-tree topologies (this is also supported by gene discordance factors for the tree in
<figureCitation id="F3D72A79E22BFF9B6209F9D4EE02F90C" box="[1284,1350,1652,1676]" captionStart="Fig" captionStartId="15.[164,201,1832,1855]" captionTargetBox="[98,1490,140,1802]" captionTargetId="graphics-2@15.[164,1280,193,1718]" captionTargetPageId="15" captionText="Fig. 3. (Caption on next page)" pageId="24" pageNumber="379">Fig. 3</figureCitation>
; mean gCF: 41.9, mean gDF1: 5.8, mean gDF2: 5.6 across all branches; see Data availability for file).
</paragraph>
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Second, we are able to dismiss noise caused by site saturation as a potential source of conflict on the basis of the persistence of the polytomy in the analyses of the likelihood mapping subsets (with noisy loci removed), the DNA alignment partitioned by codon position, and the translated
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alignment (Supplementary
<figureCitation id="F3D72A79E22BFF9B63ABF8D4EFBEF80C" box="[1190,1274,1908,1932]" captionStart="Fig" captionStartId="19.[311,348,1213,1236]" captionTargetBox="[198,1367,167,1182]" captionTargetId="graphics-304@19.[324,1275,284,732]" captionTargetPageId="19" captionText="Fig. 6. Results of topology tests for the backbone polytomy in the Eriostemon group. (a) The 15 possible resolutions of the polytomy (for the four supported clades) that testing was conducted on, ordered by most likely to least likely from left to right, top to bottom (note: the hard polytomy resolution is not depicted). (b) Plot of log likelihoods for each possible topology. The topology matching the most likely tree is denoted by a star, and the hard polytomy topology is denoted by a triangle." pageId="24" pageNumber="379">Fig. S6</figureCitation>
). Similarly, if rate variation among loci were a contributor of conflict, then our IQ-TREE analysis partitioned by locus would have produced a result different from that from the unpartitioned analysis. Hence, we consider it unlikely that conflicting phylogenetic signal is a significant cause of the short, unsupported branches of the polytomy.
</paragraph>
<paragraph id="6B5336FCE22AFF9A678FFED4E9EEFAEC" blockId="25.[98,770,180,1932]" pageId="25" pageNumber="380">
Previous molecular phylogenies of
<taxonomicName id="ACEC4D7FE22AFF9A6543FED5E9F0FE0C" box="[590,692,373,396]" class="Magnoliopsida" family="Rutaceae" kingdom="Plantae" order="Sapindales" pageId="25" pageNumber="380" phylum="Tracheophyta" rank="family">Rutaceae</taxonomicName>
have resolved deeper relationships than that of our polytomy with far less ptDNA sequence data and comparable sequence variation (e.g.
<bibRefCitation id="0F7D4B0DE22AFF9A6607FE74EAA4FE6C" author="Groppo M &amp; Pirani JR &amp; Salatino MLF &amp; Blanco SR &amp; Kallunki JA" box="[266,480,468,492]" pageId="25" pageNumber="380" pagination="985 - 1005" refId="ref20382" refString="Groppo M, Pirani JR, Salatino MLF, Blanco SR, Kallunki JA (2008) Phylogeny of Rutaceae based on two noncoding regions from cpDNA. American Journal of Botany 95, 985 - 1005. doi: 10.3732 / ajb. 2007313" type="journal article" year="2008">
Groppo
<emphasis id="5998EAEEE22AFF9A666BFE74EADAFE6C" bold="true" box="[358,414,468,492]" italics="true" pageId="25" pageNumber="380">et al.</emphasis>
2008
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,
<bibRefCitation id="0F7D4B0DE22AFF9A66FDFE74E96DFE6C" author="Groppo M &amp; Kallunki JA &amp; Pirani JR &amp; Antonelli A" box="[496,553,468,492]" pageId="25" pageNumber="380" pagination="9 - 29" refId="ref20427" refString="Groppo M, Kallunki JA, Pirani JR, Antonelli A (2012) Chilean Pitavia more closely related to Oceania and Old World Rutaceae than to Neotropical groups: evidence from two cpDNA non-coding regions, with a new subfamilial classification of the family. PhytoKeys 19, 9 - 29. doi: 10.3897 / phytokeys. 19.3912" type="journal article" year="2012">2012</bibRefCitation>
;
<bibRefCitation id="0F7D4B0DE22AFF9A6534FE74E9BEFE6C" author="Bayly MJ &amp; Holmes GD &amp; Forster PI &amp; Cantrill DJ &amp; Ladiges PY" box="[569,762,468,492]" pageId="25" pageNumber="380" pagination="72493" refId="ref19397" refString="Bayly MJ, Holmes GD, Forster PI, Cantrill DJ, Ladiges PY (2013) Major clades of Australasian Rutoideae (Rutaceae) based on rbcL and atpB sequences. PLoS One 8, e 72493. doi: 10.1371 / journal. pone. 0072493" type="journal article" year="2013">
Bayly
<emphasis id="5998EAEEE22AFF9A658DFE74E9FCFE6C" bold="true" box="[640,696,468,492]" italics="true" pageId="25" pageNumber="380">et al.</emphasis>
2013
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;
<bibRefCitation id="0F7D4B0DE22AFF9A676FFE54EA10FD8C" author="Appelhans MS &amp; Bayly MJ &amp; Heslewood MM &amp; Groppo M &amp; Verboom GA &amp; Forster PI &amp; Kallunki JA &amp; Duretto MF" box="[98,340,499,524]" pageId="25" pageNumber="380" pagination="1035 - 1061" refId="ref18956" refString="Appelhans MS, Bayly MJ, Heslewood MM, Groppo M, Verboom GA, Forster PI, Kallunki JA, Duretto MF (2021) A new subfamily classification of the Citrus family (Rutaceae) based on six nuclear and plastid markers. Taxon 70, 1035 - 1061. doi: 10.1002 / tax. 12543" type="journal article" year="2021">
Appelhans
<emphasis id="5998EAEEE22AFF9A67D0FE54EA57FD8B" bold="true" box="[221,275,499,523]" italics="true" pageId="25" pageNumber="380">et al.</emphasis>
2021
</bibRefCitation>
). Several studies have also shown that lower-level relationships can be resolved using less data (e.g.
<bibRefCitation id="0F7D4B0DE22AFF9A6793FD95EA33FDCC" author="Barrett RA &amp; Bayly MJ &amp; Duretto MF &amp; Forster PI &amp; Ladiges PY &amp; Cantrill DJ" box="[158,375,564,588]" pageId="25" pageNumber="380" pagination="427 - 449" refId="ref19241" refString="Barrett RA, Bayly MJ, Duretto MF, Forster PI, Ladiges PY, Cantrill DJ (2014) A chloroplast phylogeny of Zieria (Rutaceae) in Australia and New Caledonia shows widespread incongruence with species-level taxonomy. Australian Systematic Botany 27, 427 - 449. doi: 10.1071 / SB 14033" type="journal article" year="2014">
Barrett
<emphasis id="5998EAEEE22AFF9A67FAFD94EA76FDCC" bold="true" box="[247,306,564,588]" italics="true" pageId="25" pageNumber="380">et al.</emphasis>
2014
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;
<bibRefCitation id="0F7D4B0DE22AFF9A6687FD94E910FDCC" author="Bayly MJ &amp; Holmes GD &amp; Forster PI &amp; Munzinger J &amp; Cantrill DJ &amp; Ladiges PY" box="[394,596,564,588]" pageId="25" pageNumber="380" pagination="1457 - 1470" refId="ref19445" refString="Bayly MJ, Holmes GD, Forster PI, Munzinger J, Cantrill DJ, Ladiges PY (2016) Phylogeny, classification and biogeography of Halfordia (Rutaceae) in Australia and New Caledonia. Plant Systematics and Evolution 302, 1457 - 1470. doi: 10.1007 / s 00606 - 016 - 1344 - 0" type="journal article" year="2016">
Bayly
<emphasis id="5998EAEEE22AFF9A66D9FD94E94AFDCC" bold="true" box="[468,526,564,588]" italics="true" pageId="25" pageNumber="380">et al.</emphasis>
2016
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;
<bibRefCitation id="0F7D4B0DE22AFF9A656BFD95EBDFFDEC" author="Duretto MF &amp; Heslewood MM &amp; Bayly MJ" pageId="25" pageNumber="380" pagination="481 - 499" refId="ref19918" refString="Duretto MF, Heslewood MM, Bayly MJ (2020) Boronia (Rutaceae) is polyphyletic: reinstating Cyanothamnus and the problems associated with inappropriately defined outgroups. Taxon 69, 481 - 499. doi: 10.1002 / tax. 12242" type="journal article" year="2020">
Duretto
<emphasis id="5998EAEEE22AFF9A65CAFD94E845FDCC" bold="true" box="[711,769,564,588]" italics="true" pageId="25" pageNumber="380">et al.</emphasis>
2020
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,
<bibRefCitation id="0F7D4B0DE22AFF9A67A6FDF4EBA0FDEC" author="Duretto MF &amp; Heslewood MM &amp; Bayly MJ" box="[171,228,596,620]" pageId="25" pageNumber="380" pagination="107 - 142" refId="ref19961" refString="Duretto MF, Heslewood MM, Bayly MJ (2023) Generic and infrageneric limits of Phebalium and its allies (Rutaceae: Zanthoxyloideae). Australian Systematic Botany 36, 107 - 142. doi: 10.1071 / SB 22018" type="journal article" year="2023">2023</bibRefCitation>
). On the basis of these precedents, our dataset should be appropriate for resolving relationships at the taxonomic level of the polytomy. However, some biological characteristics of the plastome may render it inappropriate for resolving divergences that occurred over a short period of time. In plants, the plastome evolves at a relatively slow rate, at least half that of the nuclear genome (
<bibRefCitation id="0F7D4B0DE22AFF9A6570FCB4EBDFFCCC" author="Wolfe KH &amp; Li WH &amp; Sharp PM" pageId="25" pageNumber="380" pagination="9054 - 9058" refId="ref23281" refString="Wolfe KH, Li WH, Sharp PM (1987) Rates of nucleotide substitution vary greatly among plant mitochondrial, chloroplast, and nuclear DNAs. Proceedings of the National Academy of Sciences 84, 9054 - 9058. doi: 10.1073 / pnas. 84.24.9054" type="journal article" year="1987">
Wolfe
<emphasis id="5998EAEEE22AFF9A65C5FCB4E845FCAB" bold="true" box="[712,769,787,811]" italics="true" pageId="25" pageNumber="380">et al.</emphasis>
1987
</bibRefCitation>
). Genomes that evolve at slower rates are less capable of accumulating phylogenetically informative evolutionary changes during rapid radiations. In addition, lineage sorting is expected to progress more rapidly in ptDNA than in nDNA because of the smaller effective population size of the plastome (generally ¼ that of nuclear genes, with the exception of regions such as nuclear ribosomal DNA that are subjected to concerted evolution;
<bibRefCitation id="0F7D4B0DE22AFF9A6695FBB4E9BEFBAC" author="Buckler ES &amp; Holtsford TP" box="[408,762,1044,1068]" pageId="25" pageNumber="380" pagination="612 - 622" refId="ref19616" refString="Buckler ES, Holtsford TP (1996) Zea systematics: ribosomal ITS evidence. Molecular Biology and Evolution 13, 612 - 622. doi: 10.1093 / oxfordjournals. molbev. a 025621" type="journal article" year="1996">Buckler and Holtsford 1996</bibRefCitation>
;
<bibRefCitation id="0F7D4B0DE22AFF9A676FFB94EA7EFBCC" author="Palumbi SR &amp; Cipriano F &amp; Hare MP" box="[98,314,1075,1100]" pageId="25" pageNumber="380" pagination="859 - 868" refId="ref21964" refString="Palumbi SR, Cipriano F, Hare MP (2001) Predicting nuclear gene coalescence from mitochondrial data: the three-times rule. Evolution 55, 859 - 868. doi: 10.1554 / 0014 - 3820 (2001) 055 [0859: PNGCFM] 2.0. CO; 2" type="journal article" year="2001">
Palumbi
<emphasis id="5998EAEEE22AFF9A67C8FB94EBBEFBCB" bold="true" box="[197,250,1075,1099]" italics="true" pageId="25" pageNumber="380">et al.</emphasis>
2001
</bibRefCitation>
). Because of these features, the plastome may not be as useful as the nuclear genome for investigating lineages that have rapidly radiated, because there is less time for phylogenetically informative mutations to accumulate before lineages are sorted. If rapid radiation has occurred in the distant past, as is potentially the case in the
<taxonomicName id="ACEC4D7FE22AFF9A67B3FB54EA7CFA8C" authorityName=", Wilson" authorityYear="1998" box="[190,312,1268,1292]" class="Magnoliopsida" family="Rutaceae" genus="Eriostemon" kingdom="Plantae" order="Sapindales" pageId="25" pageNumber="380" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE22AFF9A67B3FB54EA7CFA8C" bold="true" box="[190,312,1268,1292]" italics="true" pageId="25" pageNumber="380">Eriostemon</emphasis>
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group, this problem is likely to be compounded by subsequent lineage-specific mutations that can mask phylogenetically informative changes accumulated during the radiation (
<bibRefCitation id="0F7D4B0DE22AFF9A665BFAF4E9DEFAEC" author="Whitfield JB &amp; Lockhart PJ" box="[342,666,1364,1388]" pageId="25" pageNumber="380" pagination="258 - 265" refId="ref22966" refString="Whitfield JB, Lockhart PJ (2007) Deciphering ancient rapid radiations. Trends in Ecology &amp; Evolution 22, 258 - 265. doi: 10.1016 / j. tree. 2007. 01.012" type="journal article" year="2007">Whitfield and Lockhart 2007</bibRefCitation>
).
</paragraph>
<paragraph id="6B5336FCE22AFF9A678FFAD4E9F5F9EC" blockId="25.[98,770,180,1932]" pageId="25" pageNumber="380">
Our ASTRAL polytomy test was unable to reject that the polytomy is not a true multifurcation (
<emphasis id="5998EAEEE22AFF9A651AFA34E961FA2B" bold="true" box="[535,549,1428,1451]" italics="true" pageId="25" pageNumber="380">
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</emphasis>
&gt; 0.5 for all polytomy branches). However, as this test relies on calculating gene-tree topology likelihoods under the
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model, the application of the test to our dataset of plastome loci is probably inappropriate (owing to divergence from the
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model), and hence this result should be interpreted cautiously (
<bibRefCitation id="0F7D4B0DE22AFF9A67EBF9F4E94BF9EC" author="Sayyari E &amp; Mirarab S" box="[230,527,1620,1644]" pageId="25" pageNumber="380" pagination="132" refId="ref22264" refString="Sayyari E, Mirarab S (2018) Testing for polytomies in phylogenetic species trees using quartet frequencies. Genes 9, 132. doi: 10.3390 / genes 9030132" type="journal article" year="2018">Sayyari and Mirarab 2018</bibRefCitation>
;
<bibRefCitation id="0F7D4B0DE22AFF9A6512F9F4E9E5F9EC" author="Doyle JJ" box="[543,673,1620,1644]" pageId="25" pageNumber="380" pagination="476 - 489" refId="ref19830" refString="Doyle JJ (2021) Defining coalescent genes: theory meets practice in organelle phylogenomics. Systematic Biology 71, 476 - 489. doi: 10.1093 / sysbio / syab 053" type="journal article" year="2021">Doyle 2021</bibRefCitation>
).
</paragraph>
<paragraph id="6B5336FCE22AFF9A678FF9D4E9DCF8AC" blockId="25.[98,770,180,1932]" pageId="25" pageNumber="380">
Results from our tree-topology tests are likely to be more reliable. These showed a trend of higher support for topologies with Clade 1 as sister to the rest of the
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<emphasis id="5998EAEEE22AFF9A6534F914E9F7F94C" bold="true" box="[569,691,1716,1740]" italics="true" pageId="25" pageNumber="380">Eriostemon</emphasis>
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group, and low support for a multifurcating topology, suggesting that relationships between these lineages are perhaps more likely to be bifurcating rather than multifurcating.
</paragraph>
<paragraph id="6B5336FCE22AFF9A678FF894EE22FEEC" blockId="25.[98,770,180,1932]" lastBlockId="25.[818,1490,180,364]" pageId="25" pageNumber="380">
The true nature of relationships around the backbone polytomy in the
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<emphasis id="5998EAEEE22AFF9A6634F8F4EAF7F8EC" bold="true" box="[313,435,1876,1900]" italics="true" pageId="25" pageNumber="380">Eriostemon</emphasis>
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group remains difficult to answer with the current dataset, and we suggest that further investigation using more appropriate data, in particular, multi-locus nuclear DNA markers, is required before any conclusions are made regarding the
<emphasis id="5998EAEEE22AFF9A63D6FF54EE4AFE8C" bold="true" box="[1243,1294,244,268]" italics="true" pageId="25" pageNumber="380">hard</emphasis>
or
<emphasis id="5998EAEEE22AFF9A6230FF54EE20FE8C" bold="true" box="[1341,1380,244,268]" italics="true" pageId="25" pageNumber="380">soft</emphasis>
status of the polytomy. Clarification of the polytomy, and its
<emphasis id="5998EAEEE22AFF9A6272FEB4EEF6FEAC" bold="true" box="[1407,1458,276,300]" italics="true" pageId="25" pageNumber="380">hard</emphasis>
or
<emphasis id="5998EAEEE22AFF9A643FFE93E81DFECB" bold="true" box="[818,857,307,331]" italics="true" pageId="25" pageNumber="380">soft</emphasis>
status, will also allow for interpretation of the higher-level branching order and evolution of the group.
</paragraph>
<paragraph id="6B5336FCE22AFF9A645FFE31EE81FE2D" blockId="25.[818,1490,401,1933]" box="[850,1477,401,429]" pageId="25" pageNumber="380">
<heading id="301B8190E22AFF9A645FFE31EE81FE2D" bold="true" box="[850,1477,401,429]" centered="true" fontSize="11" level="3" pageId="25" pageNumber="380" reason="9">
<emphasis id="5998EAEEE22AFF9A645FFE31EE81FE2D" bold="true" box="[850,1477,401,429]" pageId="25" pageNumber="380">The significance of understanding the polytomy</emphasis>
</heading>
</paragraph>
<paragraph id="6B5336FCE22AFF9A645FFE14EE72FCCC" blockId="25.[818,1490,401,1933]" pageId="25" pageNumber="380">
Together, the clades that make up the backbone polytomy in the
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<emphasis id="5998EAEEE22AFF9A6470FE74E8B3FE6C" bold="true" box="[893,1015,468,492]" italics="true" pageId="25" pageNumber="380">Eriostemon</emphasis>
</taxonomicName>
group (i.e. Clades 14) contain 16 genera (13 Australian) and ~204 species (~194 Australian) that include a large proportion of Australias
<taxonomicName id="ACEC4D7FE22AFF9A6208FDB4EE2CFDAB" box="[1285,1384,532,555]" class="Magnoliopsida" family="Rutaceae" kingdom="Plantae" order="Sapindales" pageId="25" pageNumber="380" phylum="Tracheophyta" rank="family">Rutaceae</taxonomicName>
diversity (total ~42 genera, ~490 spp.). Taxa in the
<taxonomicName id="ACEC4D7FE22AFF9A621DFD94EECEFDCC" authorityName=", Wilson" authorityYear="1998" box="[1296,1418,564,588]" class="Magnoliopsida" family="Rutaceae" genus="Eriostemon" kingdom="Plantae" order="Sapindales" pageId="25" pageNumber="380" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE22AFF9A621DFD94EECEFDCC" bold="true" box="[1296,1418,564,588]" italics="true" pageId="25" pageNumber="380">Eriostemon</emphasis>
</taxonomicName>
group account for nearly all of the
<taxonomicName id="ACEC4D7FE22AFF9A63BCFDF4EE50FDEB" box="[1201,1300,596,619]" class="Magnoliopsida" family="Rutaceae" kingdom="Plantae" order="Sapindales" pageId="25" pageNumber="380" phylum="Tracheophyta" rank="family">Rutaceae</taxonomicName>
that occur on low-nutrient soils in dry sclerophyll communities in the south-east and south-west of
<collectingCountry id="13FB766CE22AFF9A6312FD34EFC4FD2C" box="[1055,1152,660,684]" name="Australia" pageId="25" pageNumber="380">Australia</collectingCountry>
(
<bibRefCitation id="0F7D4B0DE22AFF9A6383FD34EE5EFD2C" author="Hartley TG" box="[1166,1306,660,684]" pageId="25" pageNumber="380" pagination="107 - 111" refId="ref20599" refString="Hartley TG (1995) A new combination in Boronella (Rutaceae) and a view on relationships of the genus. Adansonia 17, 107 - 111." type="journal article" year="1995">Hartley 1995</bibRefCitation>
); the only genera outside this group that occur in similar habitat are
<taxonomicName id="ACEC4D7FE22AFF9A6276FD14EE96FD4C" box="[1403,1490,692,716]" class="Magnoliopsida" family="Rutaceae" genus="Boronia" kingdom="Plantae" order="Sapindales" pageId="25" pageNumber="380" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE22AFF9A6276FD14EE96FD4C" bold="true" box="[1403,1490,692,716]" italics="true" pageId="25" pageNumber="380">Boronia</emphasis>
</taxonomicName>
(~125 spp. in
<collectingCountry id="13FB766CE22AFF9A64F8FD74EF1EFD6C" box="[1013,1114,724,748]" name="Australia" pageId="25" pageNumber="380">Australia</collectingCountry>
),
<taxonomicName id="ACEC4D7FE22AFF9A6374FD74EFFDFD6C" box="[1145,1209,724,748]" class="Magnoliopsida" family="Rutaceae" genus="Zieria" kingdom="Plantae" order="Sapindales" pageId="25" pageNumber="380" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE22AFF9A6374FD74EFFDFD6C" bold="true" box="[1145,1209,724,748]" italics="true" pageId="25" pageNumber="380">Zieria</emphasis>
</taxonomicName>
(~63 spp. in eastern
<collectingCountry id="13FB766CE22AFF9A643FFD54E8D3FC8C" box="[818,919,756,780]" name="Australia" pageId="25" pageNumber="380">Australia</collectingCountry>
),
<taxonomicName id="ACEC4D7FE22AFF9A64A0FD54EF70FC8C" box="[941,1076,756,780]" class="Magnoliopsida" family="Rutaceae" genus="Neobyrnesia" kingdom="Plantae" order="Sapindales" pageId="25" pageNumber="380" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE22AFF9A64A0FD54EF70FC8C" bold="true" box="[941,1076,756,780]" italics="true" pageId="25" pageNumber="380">Neobyrnesia</emphasis>
</taxonomicName>
(
<specimenCount id="7DEAFD75E22AFF9A6346FD54EFC4FC8C" box="[1099,1152,756,780]" count="1" pageId="25" pageNumber="380" type="generic">1 sp.</specimenCount>
in
<collectionCode id="0DFDAE39E22AFF9A63A6FD55EFF9FC8C" box="[1195,1213,757,780]" country="China" lsid="urn:lsid:biocol.org:col:13092" name="Nanjing University" pageId="25" pageNumber="380" type="Herbarium">N</collectionCode>
<collectingRegion id="A928F81EE22AFF9A63C5FD54EEDCFC8C" box="[1224,1432,756,780]" country="Australia" name="Northern Territory" pageId="25" pageNumber="380">Northern Territory</collectingRegion>
) and
<taxonomicName id="ACEC4D7FE22AFF9A643FFCB3E891FCAB" box="[818,981,787,811]" class="Magnoliopsida" family="Rutaceae" genus="Cyanothamnus" kingdom="Plantae" order="Sapindales" pageId="25" pageNumber="380" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE22AFF9A643FFCB3E891FCAB" bold="true" box="[818,981,787,811]" italics="true" pageId="25" pageNumber="380">Cyanothamnus</emphasis>
</taxonomicName>
(23 spp. in
<collectingCountry id="13FB766CE22AFF9A635BFCB4EFF8FCAC" box="[1110,1212,788,812]" name="Australia" pageId="25" pageNumber="380">Australia</collectingCountry>
). Because of this, they are an important component of the Australian flora.
</paragraph>
<paragraph id="6B5336FCE22AFF9A645FFCF4EE30F88C" blockId="25.[818,1490,401,1933]" pageId="25" pageNumber="380">
The phylogenetic depth at which the polytomy occurs means that it is largely irrelevant to the taxonomic delimitation of genera but may be pertinent to higher-level classification. Currently, revisions of tribal and subtribal classification are needed for
<taxonomicName id="ACEC4D7FE22AFF9A64D8FC74EE7BFC6C" authority="(Appelhans et al. 2021)" baseAuthorityName="Appelhans" baseAuthorityYear="2021" box="[981,1343,979,1004]" class="Magnoliopsida" family="Rutaceae" kingdom="Plantae" order="Sapindales" pageId="25" pageNumber="380" phylum="Tracheophyta" rank="family">
Rutaceae (
<bibRefCitation id="0F7D4B0DE22AFF9A634AFC74EE70FC6C" author="Appelhans MS &amp; Bayly MJ &amp; Heslewood MM &amp; Groppo M &amp; Verboom GA &amp; Forster PI &amp; Kallunki JA &amp; Duretto MF" box="[1095,1332,979,1004]" pageId="25" pageNumber="380" pagination="1035 - 1061" refId="ref18956" refString="Appelhans MS, Bayly MJ, Heslewood MM, Groppo M, Verboom GA, Forster PI, Kallunki JA, Duretto MF (2021) A new subfamily classification of the Citrus family (Rutaceae) based on six nuclear and plastid markers. Taxon 70, 1035 - 1061. doi: 10.1002 / tax. 12543" type="journal article" year="2021">
Appelhans
<emphasis id="5998EAEEE22AFF9A63B2FC74EFB1FC6B" bold="true" box="[1215,1269,979,1003]" italics="true" pageId="25" pageNumber="380">et al.</emphasis>
2021
</bibRefCitation>
)
</taxonomicName>
.
<collectionCode id="0DFDAE39E22AFF9A6246FC74EE18FC6C" box="[1355,1372,980,1004]" country="USA" lsid="urn:lsid:biocol.org:col:15406" name="Harvard University - Arnold Arboretum" pageId="25" pageNumber="380" type="Herbarium">A</collectionCode>
new tribal classification would probably apply above the level of the polytomy and, hence, not require its resolution, but a robust future subtribal classification would certainly benefit from the resolution of the branching order of Clades 14. Subtribes in the
<taxonomicName id="ACEC4D7FE22AFF9A6469FBD4E89AFB0C" authorityName=", Wilson" authorityYear="1998" box="[868,990,1140,1164]" class="Magnoliopsida" family="Rutaceae" genus="Eriostemon" kingdom="Plantae" order="Sapindales" pageId="25" pageNumber="380" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE22AFF9A6469FBD4E89AFB0C" bold="true" box="[868,990,1140,1164]" italics="true" pageId="25" pageNumber="380">Eriostemon</emphasis>
</taxonomicName>
group have been largely neglected since
<bibRefCitation id="0F7D4B0DE22AFF9A643FFB34E89FFB2C" author="Engler A" box="[818,987,1172,1196]" pageId="25" pageNumber="380" pagination="187 - 359" refId="ref20114" refString="Engler A (1931) Rutaceae. In ' Die Naturlichen Pflanzenfamilien, 2 nd edn. Vol. 19 a'. (Eds A Engler, K Prantl) pp. 187 - 359. (Wilhelm Engelmann: Leipzig, German Republic)" type="journal article" year="1931">Engler (1931)</bibRefCitation>
, who placed the contemporary genera (
<taxonomicName id="ACEC4D7FE22AFF9A6436FB14E8F2FB4C" box="[827,950,1204,1228]" class="Magnoliopsida" family="Rutaceae" genus="Muiriantha" kingdom="Plantae" order="Sapindales" pageId="25" pageNumber="380" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE22AFF9A6436FB14E8F2FB4C" bold="true" box="[827,950,1204,1228]" italics="true" pageId="25" pageNumber="380">Muiriantha</emphasis>
</taxonomicName>
was not yet described) in the
<taxonomicName id="ACEC4D7FE22AFF9A6255FB14EE96FB4C" authorityName=", Wilson" authorityYear="1998" box="[1368,1490,1204,1228]" class="Magnoliopsida" family="Rutaceae" genus="Eriostemon" kingdom="Plantae" order="Sapindales" pageId="25" pageNumber="380" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE22AFF9A6255FB14EE96FB4C" bold="true" box="[1368,1490,1204,1228]" italics="true" pageId="25" pageNumber="380">Eriostemon</emphasis>
</taxonomicName>
group across the following four subtribes:
<taxonomicName id="ACEC4D7FE22AFF9A622EFB74EE95FB6C" box="[1315,1489,1236,1260]" class="Magnoliopsida" family="Rutaceae" kingdom="Plantae" order="Sapindales" pageId="25" pageNumber="380" phylum="Tracheophyta" rank="subTribe" subTribe="Eriostemoninae">Eriostemoninae</taxonomicName>
(including
<taxonomicName id="ACEC4D7FE22AFF9A64A4FB53EF67FA8B" box="[937,1059,1267,1291]" class="Magnoliopsida" family="Rutaceae" genus="Asterolasia" kingdom="Plantae" order="Sapindales" pageId="25" pageNumber="380" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE22AFF9A64A4FB53EF67FA8B" bold="true" box="[937,1059,1267,1291]" italics="true" pageId="25" pageNumber="380">Asterolasia</emphasis>
</taxonomicName>
,
<taxonomicName id="ACEC4D7FE22AFF9A633DFB54EFC7FA8C" box="[1072,1155,1268,1292]" class="Magnoliopsida" family="Rutaceae" genus="Crowea" kingdom="Plantae" order="Sapindales" pageId="25" pageNumber="380" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE22AFF9A633DFB54EFC7FA8C" bold="true" box="[1072,1155,1268,1292]" italics="true" pageId="25" pageNumber="380">Crowea</emphasis>
</taxonomicName>
,
<taxonomicName id="ACEC4D7FE22AFF9A639CFB53EE6CFA8B" box="[1169,1320,1267,1291]" class="Magnoliopsida" family="Rutaceae" genus="Drummondita" kingdom="Plantae" order="Sapindales" pageId="25" pageNumber="380" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE22AFF9A639CFB53EE6CFA8B" bold="true" box="[1169,1320,1267,1291]" italics="true" pageId="25" pageNumber="380">Drummondita</emphasis>
</taxonomicName>
(as a section of
<taxonomicName id="ACEC4D7FE22AFF9A643FFAB4E8E1FAAC" baseAuthorityName="sensu Wilson" baseAuthorityYear="1971" box="[818,933,1300,1324]" class="Magnoliopsida" family="Rutaceae" genus="Philotheca" kingdom="Plantae" order="Sapindales" pageId="25" pageNumber="380" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE22AFF9A643FFAB4E8E1FAAC" bold="true" box="[818,933,1300,1324]" italics="true" pageId="25" pageNumber="380">Philotheca</emphasis>
</taxonomicName>
),
<taxonomicName id="ACEC4D7FE22AFF9A64B0FAB4EF73FAAC" authorityName=", Wilson" authorityYear="1998" box="[957,1079,1300,1324]" class="Magnoliopsida" family="Rutaceae" genus="Eriostemon" kingdom="Plantae" order="Sapindales" pageId="25" pageNumber="380" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE22AFF9A64B0FAB4EF73FAAC" bold="true" box="[957,1079,1300,1324]" italics="true" pageId="25" pageNumber="380">Eriostemon</emphasis>
</taxonomicName>
,
<taxonomicName id="ACEC4D7FE22AFF9A634AFAB4EF81FAAC" box="[1095,1221,1300,1324]" class="Magnoliopsida" family="Rutaceae" genus="Geleznowia" kingdom="Plantae" order="Sapindales" pageId="25" pageNumber="380" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE22AFF9A634AFAB4EF81FAAC" bold="true" box="[1095,1221,1300,1324]" italics="true" pageId="25" pageNumber="380">Geleznowia</emphasis>
</taxonomicName>
,
<taxonomicName id="ACEC4D7FE22AFF9A63D8FAB4EE7AFAAC" box="[1237,1342,1300,1324]" class="Magnoliopsida" family="Rutaceae" genus="Leionema" kingdom="Plantae" order="Sapindales" pageId="25" pageNumber="380" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE22AFF9A63D8FAB4EE7AFAAC" bold="true" box="[1237,1342,1300,1324]" italics="true" pageId="25" pageNumber="380">Leionema</emphasis>
</taxonomicName>
(as a section of
<taxonomicName id="ACEC4D7FE22AFF9A645DFA94E887FACC" box="[848,963,1332,1356]" class="Magnoliopsida" family="Rutaceae" genus="Phebalium" kingdom="Plantae" order="Sapindales" pageId="25" pageNumber="380" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE22AFF9A645DFA94E887FACC" bold="true" box="[848,963,1332,1356]" italics="true" pageId="25" pageNumber="380">Phebalium</emphasis>
</taxonomicName>
),
<taxonomicName id="ACEC4D7FE22AFF9A64D1FA94EF0BFACC" box="[988,1103,1332,1356]" class="Magnoliopsida" family="Rutaceae" genus="Phebalium" kingdom="Plantae" order="Sapindales" pageId="25" pageNumber="380" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE22AFF9A64D1FA94EF0BFACC" bold="true" box="[988,1103,1332,1356]" italics="true" pageId="25" pageNumber="380">Phebalium</emphasis>
</taxonomicName>
and
<taxonomicName id="ACEC4D7FE22AFF9A6384FA94EFB8FACC" baseAuthorityName="sensu Wilson" baseAuthorityYear="1971" box="[1161,1276,1332,1356]" class="Magnoliopsida" family="Rutaceae" genus="Philotheca" kingdom="Plantae" order="Sapindales" pageId="25" pageNumber="380" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE22AFF9A6384FA94EFB8FACC" bold="true" box="[1161,1276,1332,1356]" italics="true" pageId="25" pageNumber="380">Philotheca</emphasis>
</taxonomicName>
), Nematolepidinae (
<taxonomicName id="ACEC4D7FE22AFF9A6436FAF3E8F7FAEB" box="[827,947,1363,1387]" class="Magnoliopsida" family="Rutaceae" genus="Chorilaena" kingdom="Plantae" order="Sapindales" pageId="25" pageNumber="380" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE22AFF9A6436FAF3E8F7FAEB" bold="true" box="[827,947,1363,1387]" italics="true" pageId="25" pageNumber="380">Chorilaena</emphasis>
</taxonomicName>
and
<taxonomicName id="ACEC4D7FE22AFF9A64E4FAF3EF2BFAEB" box="[1001,1135,1363,1387]" class="Magnoliopsida" family="Rutaceae" genus="Nematolepis" kingdom="Plantae" order="Sapindales" pageId="25" pageNumber="380" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE22AFF9A64E4FAF3EF2BFAEB" bold="true" box="[1001,1135,1363,1387]" italics="true" pageId="25" pageNumber="380">Nematolepis</emphasis>
</taxonomicName>
), Correinae (monotypic, including
<taxonomicName id="ACEC4D7FE22AFF9A6461FAD4E8F2FA0C" box="[876,950,1396,1420]" class="Magnoliopsida" family="Rutaceae" genus="Correa" kingdom="Plantae" order="Sapindales" pageId="25" pageNumber="380" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE22AFF9A6461FAD4E8F2FA0C" bold="true" box="[876,950,1396,1420]" italics="true" pageId="25" pageNumber="380">Correa</emphasis>
</taxonomicName>
) and Diplolaeninae (monotypic, including
<taxonomicName id="ACEC4D7FE22AFF9A643FFA34E8ECFA2C" box="[818,936,1428,1452]" class="Magnoliopsida" family="Rutaceae" genus="Diplolaena" kingdom="Plantae" order="Sapindales" pageId="25" pageNumber="380" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE22AFF9A643FFA34E8ECFA2C" bold="true" box="[818,936,1428,1452]" italics="true" pageId="25" pageNumber="380">Diplolaena</emphasis>
</taxonomicName>
). Under this scheme,
<taxonomicName id="ACEC4D7FE22AFF9A63ADFA34EE09FA2C" box="[1184,1357,1428,1452]" class="Magnoliopsida" family="Rutaceae" kingdom="Plantae" order="Sapindales" pageId="25" pageNumber="380" phylum="Tracheophyta" rank="subTribe" subTribe="Eriostemoninae">Eriostemoninae</taxonomicName>
is polyphyletic. On the basis of our phylogeny, one could propose a new system that recognises each of the major lineages of the group (i.e. Clades 14) as separate subtribes. Alternatively, subtribe
<taxonomicName id="ACEC4D7FE22AFF9A6499F9B4EF79F9AC" box="[916,1085,1556,1580]" class="Magnoliopsida" family="Rutaceae" kingdom="Plantae" order="Sapindales" pageId="25" pageNumber="380" phylum="Tracheophyta" rank="subTribe" subTribe="Eriostemoninae">Eriostemoninae</taxonomicName>
could be split into several different subtribes so as to retain Correinae, Diplolaeninae and Nematolepidinae. In any case, a newly proposed classification should be constructed with consideration of relationships across the whole of the
<taxonomicName id="ACEC4D7FE22AFF9A6345F934EFEFF92B" box="[1096,1195,1684,1707]" class="Magnoliopsida" family="Rutaceae" kingdom="Plantae" order="Sapindales" pageId="25" pageNumber="380" phylum="Tracheophyta" rank="family">Rutaceae</taxonomicName>
to ensure that taxonomic ranks are applied in a consistent manner, and should also consider the morphological diagnosability of subtribes, something that the current study does not thoroughly do.
</paragraph>
<paragraph id="6B5336FCE22AFF99645FF8B4EA54FB0C" blockId="25.[818,1490,401,1933]" lastBlockId="26.[98,770,180,1164]" lastPageId="26" lastPageNumber="381" pageId="25" pageNumber="380">
Beyond taxonomic classification, resolving the branching order of the polytomy would prove useful to studies focussed on macroevolution and biogeography. In terms of morphology, the
<taxonomicName id="ACEC4D7FE22AFF9A6321F8D4EFE2F80C" authorityName=", Wilson" authorityYear="1998" box="[1068,1190,1908,1932]" class="Magnoliopsida" family="Rutaceae" genus="Eriostemon" kingdom="Plantae" order="Sapindales" pageId="25" pageNumber="380" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE22AFF9A6321F8D4EFE2F80C" bold="true" box="[1068,1190,1908,1932]" italics="true" pageId="25" pageNumber="380">Eriostemon</emphasis>
</taxonomicName>
group displays multiple characters of biological and ecological interest that have evidently experienced state transitions (e.g. in floral features and phyllotaxy); studies investigating the evolutionary histories of characters by using methods that require bifurcating phylogenetic frameworks, such as ancestral-state reconstructions, would be enabled by resolution of the polytomy. Biogeographically, the
<taxonomicName id="ACEC4D7FE229FF9966ECFED4E91FFE0C" authorityName=", Wilson" authorityYear="1998" box="[481,603,372,396]" class="Magnoliopsida" family="Rutaceae" genus="Eriostemon" kingdom="Plantae" order="Sapindales" pageId="26" pageNumber="381" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE229FF9966ECFED4E91FFE0C" bold="true" box="[481,603,372,396]" italics="true" pageId="26" pageNumber="381">Eriostemon</emphasis>
</taxonomicName>
group is noteworthy for having multiple genera that are disjunct between south-western and south-eastern
<collectingCountry id="13FB766CE229FF9966CAFE14E96DFE4C" box="[455,553,436,460]" name="Australia" pageId="26" pageNumber="381">Australia</collectingCountry>
(e.g.
<taxonomicName id="ACEC4D7FE229FF996568FE14E99CFE4C" box="[613,728,436,460]" class="Magnoliopsida" family="Rutaceae" genus="Phebalium" kingdom="Plantae" order="Sapindales" pageId="26" pageNumber="381" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE229FF996568FE14E99CFE4C" bold="true" box="[613,728,436,460]" italics="true" pageId="26" pageNumber="381">Phebalium</emphasis>
</taxonomicName>
, 16 spp. in south-west, 22 spp. in south-east;
<taxonomicName id="ACEC4D7FE229FF996512FE74E9E1FE6C" box="[543,677,468,492]" class="Magnoliopsida" family="Rutaceae" genus="Nematolepis" kingdom="Plantae" order="Sapindales" pageId="26" pageNumber="381" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE229FF996512FE74E9E1FE6C" bold="true" box="[543,677,468,492]" italics="true" pageId="26" pageNumber="381">Nematolepis</emphasis>
</taxonomicName>
,
<specimenCount id="7DEAFD75E229FF9965BFFE74E9A2FE6C" box="[690,742,468,492]" count="1" pageId="26" pageNumber="381" type="generic">1 sp.</specimenCount>
in south-west, 6 spp. in south-east;
<taxonomicName id="ACEC4D7FE229FF9966C9FE53E9BEFD8C" box="[452,762,499,524]" class="Magnoliopsida" family="Rutaceae" genus="Philotheca" kingdom="Plantae" order="Sapindales" pageId="26" pageNumber="381" phylum="Tracheophyta" rank="section" section="Erionema">
<emphasis id="5998EAEEE229FF9966C9FE53E973FD8B" bold="true" box="[452,567,499,523]" italics="true" pageId="26" pageNumber="381">Philotheca</emphasis>
section
<emphasis id="5998EAEEE229FF99659FFE54E9BEFD8C" bold="true" box="[658,762,500,524]" italics="true" pageId="26" pageNumber="381">Erionema</emphasis>
</taxonomicName>
,
<specimenCount id="7DEAFD75E229FF99676FFDB4EBD0FDAB" box="[98,148,532,556]" count="1" pageId="26" pageNumber="381" type="generic">1 sp.</specimenCount>
in south-west, 14 spp. in south-east;
<taxonomicName id="ACEC4D7FE229FF99652DFDB4E9DEFDAC" box="[544,666,532,556]" class="Magnoliopsida" family="Rutaceae" genus="Asterolasia" kingdom="Plantae" order="Sapindales" pageId="26" pageNumber="381" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE229FF99652DFDB4E9DEFDAC" bold="true" box="[544,666,532,556]" italics="true" pageId="26" pageNumber="381">Asterolasia</emphasis>
</taxonomicName>
, 5 spp. in south-west, 14 spp. in south-east). This distribution pattern occurs in many plant taxa and has been attributed to vicariance associated with marine inundations of south-central
<collectingCountry id="13FB766CE229FF99676FFD34EB80FD2C" box="[98,196,660,684]" name="Australia" pageId="26" pageNumber="381">Australia</collectingCountry>
and subsequent edaphic and climatic barriers during the mid-Miocene (~1614 million years ago;
<bibRefCitation id="0F7D4B0DE229FF9965C4FD14EA49FD6C" author="Crisp MD &amp; Cook LG" pageId="26" pageNumber="381" pagination="1106 - 1117" refId="ref19712" refString="Crisp MD, Cook LG (2007) A congruent molecular signature of vicariance across multiple plant lineages. Molecular Phylogenetics and Evolution 43, 1106 - 1117. doi: 10.1016 / j. ympev. 2007.02.030" type="journal article" year="2007">Crisp and Cook 2007</bibRefCitation>
;
<bibRefCitation id="0F7D4B0DE229FF996610FD74EAB1FD6C" author="Ladiges PY &amp; Bayly MJ &amp; Nelson GJ" box="[285,501,724,748]" pageId="26" pageNumber="381" pagination="267 - 302" refId="ref21330" refString="Ladiges PY, Bayly MJ, Nelson GJ (2010) East - west continental vicariance in Eucalyptus subgenus Eucalyptus. In ' Beyond Cladistics. The Branching of a Paradigm'. (Eds DM Williams, S Knapp) pp. 267 - 302. (University of California Press: Berkeley, CA, USA)" type="book chapter" year="2010">
Ladiges
<emphasis id="5998EAEEE229FF996674FD74EAF6FD6C" bold="true" box="[377,434,724,748]" italics="true" pageId="26" pageNumber="381">et al.</emphasis>
2010
</bibRefCitation>
,
<bibRefCitation id="0F7D4B0DE229FF996508FD74E979FD6C" author="Ladiges PY &amp; Bayly MJ &amp; Nelson G" box="[517,573,724,748]" pageId="26" pageNumber="381" pagination="703 - 708" refId="ref21388" refString="Ladiges PY, Bayly MJ, Nelson G (2012) Searching for ancestral areas and artifactual centers of origin in biogeography: with comment on east - west patterns across southern Australia. Systematic Biology 61, 703 - 708. doi: 10.1093 / sysbio / sys 005" type="journal article" year="2012">2012</bibRefCitation>
). Compared with other species-rich families in
<collectingCountry id="13FB766CE229FF9966C1FD54E975FC8C" box="[460,561,756,780]" name="Australia" pageId="26" pageNumber="381">Australia</collectingCountry>
, the
<taxonomicName id="ACEC4D7FE229FF996576FD55E99AFC8C" box="[635,734,757,780]" class="Magnoliopsida" family="Rutaceae" kingdom="Plantae" order="Sapindales" pageId="26" pageNumber="381" phylum="Tracheophyta" rank="family">Rutaceae</taxonomicName>
is unconventional in having a higher net diversification rate of genera in the south-east than in the south-west from the EoceneOligocene (~34 million years ago) extinction pulse until the mid-Miocene (
<bibRefCitation id="0F7D4B0DE229FF99667DFCD4E961FC0C" author="Nge FJ &amp; Biffin E &amp; Thiele KR &amp; Waycott M" box="[368,549,883,908]" pageId="26" pageNumber="381" pagination="20192546" refId="ref21802" refString="Nge FJ, Biffin E, Thiele KR, Waycott M (2020) Extinction pulse at Eocene - Oligocene boundary drives diversification dynamics of two Australian temperate floras. Proceedings of the Royal Society of London - B. Biological Sciences 287, 20192546. doi: 10.1098 / rspb. 2019.2546" type="journal article" year="2020">
Nge
<emphasis id="5998EAEEE229FF9966ABFCD4EAA5FC0B" bold="true" box="[422,481,883,907]" italics="true" pageId="26" pageNumber="381">et al.</emphasis>
2020
</bibRefCitation>
). Resolution of the backbone polytomy would enable the further testing of hypotheses relating to the timing of this vicariance event in the Australian
<taxonomicName id="ACEC4D7FE229FF99660AFC74EA2EFC6B" box="[263,362,980,1003]" class="Magnoliopsida" family="Rutaceae" kingdom="Plantae" order="Sapindales" pageId="26" pageNumber="381" phylum="Tracheophyta" rank="family">Rutaceae</taxonomicName>
and offer insight into the drivers of generic diversification, and, specifically, whether the diversification of major lineages (i.e. our Clades 14) was influenced by such an event. It could also present an opportunity to provide a more robust timing for the split of
<taxonomicName id="ACEC4D7FE229FF996578FBF4E99BFBEC" box="[629,735,1108,1132]" class="Magnoliopsida" family="Rutaceae" genus="Myrtopsis" kingdom="Plantae" order="Sapindales" pageId="26" pageNumber="381" phylum="Tracheophyta" rank="genus">
<emphasis id="5998EAEEE229FF996578FBF4E99BFBEC" bold="true" box="[629,735,1108,1132]" italics="true" pageId="26" pageNumber="381">Myrtopsis</emphasis>
</taxonomicName>
in
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.
</paragraph>
</subSubSection>
</treatment>
</document>