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<document id="CF74C239DF2B51A78E7B68FA775BB104" ID-DOI="10.11646/phytotaxa.578.3.2" ID-ISSN="1179-3163" ID-Zenodo-Dep="7523092" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" checkinTime="1673388115964" checkinUser="plazi" docAuthor="Bruy, David, Lannuzel, Guillaume, Gâteblé, Gildas &amp; Munzinger, Jérôme" docDate="2023" docId="039D87FB1C7FFFF9FF22FE2BFA8CFB02" docLanguage="en" docName="phytotaxa.738.3.2.pdf" docOrigin="Phytotaxa 578 (3)" docSource="http://dx.doi.org/10.11646/phytotaxa.578.3.2" docStyle="DocumentStyle:96748F8F1B6C902996E134952A3A36B9.7:Phytotaxa.2014-.journal_article" docStyleId="96748F8F1B6C902996E134952A3A36B9" docStyleName="Phytotaxa.2014-.journal_article" docStyleVersion="7" docTitle="Tristaniopsis planidisca Lannuzel 2023, sp. nov." docType="treatment" docVersion="3" lastPageNumber="238" masterDocId="FFA4FF831C77FFF3FFAAFF92FFE5FF86" masterDocTitle="Three new species threatened by mining activity in New Caledonia" masterLastPageNumber="240" masterPageNumber="228" pageNumber="236" updateTime="1699446163002" updateUser="plazi" zenodo-license-figures="UNSPECIFIED" zenodo-license-treatments="UNSPECIFIED">
<mods:mods id="38DD7C6DE9C09A3C6856652E54D225AE" xmlns:mods="http://www.loc.gov/mods/v3">
<mods:titleInfo id="8A2D13A72094687FD92D883BB2815DDF">
<mods:title id="397DBCFF99952F8EBE2BE1BEA44E7601">Three new species threatened by mining activity in New Caledonia</mods:title>
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<mods:namePart id="4746B6CDF47153043170BDE1868ED6B3">Bruy, David</mods:namePart>
<mods:nameIdentifier id="BC08932AF4B7546A321D17A315D3D738" type="ORCID">0000-0002-7339-0375</mods:nameIdentifier>
<mods:affiliation id="2D85022FCD4259F77C854AF1A8859AE7">AMAP, Université Montpellier, IRD, CIRAD, CNRS, INRAE, Montpellier, France &amp; AMAP, IRD, Herbier de Nouvelle-Calédonie, Nouméa, Nouvelle Calédonie &amp; david. bruy @ ird. fr; https: // orcid. org / 0000 - 0002 - 7339 - 0375</mods:affiliation>
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<mods:namePart id="410DD71F147AFD1E0B383BD37EEFD5A2">Lannuzel, Guillaume</mods:namePart>
<mods:nameIdentifier id="06320E0806341D6AC89421A29CC4E5B4" type="ORCID">0000-0002-9460-1178</mods:nameIdentifier>
<mods:affiliation id="4DDDDBA624FCDABBC8DE387D002EDBB7">Institut Agronomique Néo-Calédonien, Équipe ARBOREAL, Nouméa, New Caledonia &amp; Endemia, New Caledonia Plants Red List Authority, Nouméa, New Caledonia &amp; guillaume. lannuzel @ gmail. com; https: // orcid. org / 0000 - 0002 - 9460 - 1178</mods:affiliation>
<mods:nameIdentifier id="0DBCF5D53762FEF83428477E49FA729D" type="email">guillaume.lannuzel@gmail.com</mods:nameIdentifier>
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<mods:roleTerm id="B55FC501CBCE7172AA292264C6C129F8">Author</mods:roleTerm>
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<mods:namePart id="2BB775EB5990380177CCE2D0C7AD8001">Gâteblé, Gildas</mods:namePart>
<mods:nameIdentifier id="8FD0A3BC977541255A49332E5B4ABD88" type="ORCID">0000-0003-2831-6384</mods:nameIdentifier>
<mods:affiliation id="72F5CDB3855896630BDECE290FB4E2EC">Institut Agronomique Néo-Calédonien, Équipe ARBOREAL, Nouméa, New Caledonia &amp; INRAE, UE 1353, Unité Expérimentale Villa Thuret, Antibes Juan-les-Pins, France &amp; gildas. gateble @ inrae. fr; https: // orcid. org / 0000 - 0003 - 2831 - 6384</mods:affiliation>
<mods:nameIdentifier id="F101550A17B0A7B4934A57C81B3E10B4" type="email">gildas.gateble@inrae.fr</mods:nameIdentifier>
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<mods:namePart id="120B8608B81AD493B5846944C91334D6">Munzinger, Jérôme</mods:namePart>
<mods:nameIdentifier id="5737FAB1A18186943FBEC4C132B0A428" type="ORCID">0000-0001-5300-2702</mods:nameIdentifier>
<mods:affiliation id="0457F33D167A7F4808E8A5D794139074">AMAP, Université Montpellier, IRD, CIRAD, CNRS, INRAE, Montpellier, France &amp; jerome. munzinger @ ird. fr; https: // orcid. org / 0000 - 0001 - 5300 - 2702</mods:affiliation>
<mods:nameIdentifier id="4E8FE8CF2CDA3BE7F0729BC4D5ABBDCB" type="email">jerome.munzinger@ird.fr</mods:nameIdentifier>
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<mods:title id="6D9531A6FDDCA0C4E999F87231EE943F">Phytotaxa</mods:title>
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<mods:date id="C92A810782255F594B8EC9D38084AC52">2023</mods:date>
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<mods:number id="5F744A414A196758EFC468D8F30C1DAC">578</mods:number>
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<mods:number id="2D19D7C339C4503773693129E8A3149C">3</mods:number>
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<mods:classification id="EE2C1018429831743B70B9A82FC1FEE4">journal article</mods:classification>
<mods:identifier id="48EA45E6E495F8B8C27F671CBEA24D03" type="DOI">10.11646/phytotaxa.578.3.2</mods:identifier>
<mods:identifier id="B8AEEBAD19CD8CF94F70005788C48C29" type="ISSN">1179-3163</mods:identifier>
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<treatment id="039D87FB1C7FFFF9FF22FE2BFA8CFB02" ID-DOI="http://doi.org/10.5281/zenodo.7523108" ID-Zenodo-Dep="7523108" LSID="urn:lsid:plazi:treatment:039D87FB1C7FFFF9FF22FE2BFA8CFB02" httpUri="http://treatment.plazi.org/id/039D87FB1C7FFFF9FF22FE2BFA8CFB02" lastPageId="10" lastPageNumber="238" pageId="8" pageNumber="236">
<subSubSection id="C32E65661C7FFFFBFF22FE2BFD03FE52" box="[136,742,441,468]" pageId="8" pageNumber="236" type="nomenclature">
<paragraph id="8B8B36ED1C7FFFFBFF22FE2BFD03FE52" blockId="8.[136,742,441,468]" box="[136,742,441,468]" pageId="8" pageNumber="236">
<heading id="D0C381811C7FFFFBFF22FE2BFD03FE52" box="[136,742,441,468]" fontSize="11" level="2" pageId="8" pageNumber="236" reason="3">
<taxonomicName id="4C344D6E1C7FFFFBFF22FE2BFDECFE55" ID-CoL="B6K39" authority="Lannuzel" authorityName="Lannuzel" authorityYear="2023" box="[136,521,441,468]" class="Magnoliopsida" family="Myrtaceae" genus="Tristaniopsis" kingdom="Plantae" order="Myrtales" pageId="8" pageNumber="236" phylum="Tracheophyta" rank="species" species="planidisca" status="sp. nov.">
<emphasis id="B940EAFF1C7FFFFBFF22FE2BFE7CFE52" bold="true" box="[136,409,441,468]" italics="true" pageId="8" pageNumber="236">Tristaniopsis planidisca</emphasis>
Lannuzel
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<emphasis id="B940EAFF1C7FFFFBFDBAFE28FD80FE55" box="[528,613,442,467]" italics="true" pageId="8" pageNumber="236">
<taxonomicNameLabel id="A27357841C7FFFFBFDBAFE28FD80FE55" box="[528,613,442,467]" pageId="8" pageNumber="236" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
(
<figureCitation id="130F2A681C7FFFFBFDD9FE2BFD26FE55" box="[627,707,441,467]" captionStart="FIGURE 6" captionStartId="8.[136,229,1946,1968]" captionTargetBox="[151,1435,637,1921]" captionTargetId="figure-186@8.[151,1435,637,1921]" captionTargetPageId="8" captionText="FIGURE 6. Pictures of Tristaniopsis planidisca. A—General habit; B—Abaxial surface of the leaf; C—Flowering branch; D—Flower; E—Young fruits; F—Old fruit. Photographer: Lannuzel G. from Gâteblé et al. 1240." figureDoi="http://doi.org/10.5281/zenodo.7523112" httpUri="https://zenodo.org/record/7523112/files/figure.png" pageId="8" pageNumber="236">Figs. 6</figureCitation>
,
<figureCitation id="130F2A681C7FFFFBFD65FE28FD3BFE52" box="[719,734,442,468]" captionStart="FIGURE 7" captionStartId="9.[136,229,1807,1829]" captionTargetBox="[244,1289,209,1764]" captionTargetId="figure-22@9.[190,1398,190,1783]" captionTargetPageId="9" captionText="FIGURE 7. Drawing of Tristaniopsis planidisca.A—Flowering branches; B—Abaxial (left) and adaxial (right) sides of the leaf; C—Detail of the fine pubescence and a bracteole on inflorescence axis; D—Inflorescences with flowers and young fruits; E—Old infrutescence with opened fruits; F—Flower; G—Immature fruit. Illustrator: Ramon L." figureDoi="http://doi.org/10.5281/zenodo.7523114" httpUri="https://zenodo.org/record/7523114/files/figure.png" pageId="8" pageNumber="236">7</figureCitation>
)
</heading>
</paragraph>
</subSubSection>
<subSubSection id="C32E65661C7FFFFBFF22FE70FCEBFD9D" pageId="8" pageNumber="236" type="materials_examined">
<paragraph id="8B8B36ED1C7FFFFBFF22FE70FCEBFD9D" blockId="8.[136,1452,481,611]" pageId="8" pageNumber="236">
<materialsCitation id="3B5C3CB01C7FFFFBFF22FE70FCEFFD9D" collectingDate="2020-10-20" collectionCode="NOU, P" collectorName="Lannuzel &amp; Bruy &amp; Gateble" country="New Caledonia" elevation="410" latitude="-21.97389" location="Type" longLatPrecision="21" longitude="166.65166" pageId="8" pageNumber="236" specimenCode="NOU107436, P00942253" specimenCount="1" stateProvince="Province Sud" typeStatus="holotype">
<location id="8EEB60361C7FFFFBFF22FE70FF5CFE71" LSID="urn:lsid:plazi:treatment:039D87FB1C7FFFF9FF22FE2BFA8CFB02:8EEB60361C7FFFFBFF22FE70FF5CFE71" box="[136,185,482,503]" country="New Caledonia" latitude="-21.97389" longLatPrecision="21" longitude="166.65166" name="Type" pageId="8" pageNumber="236" stateProvince="Province Sud">Type</location>
:—
<collectingCountry id="F323767D1C7FFFFBFF7FFE70FE44FE70" box="[213,417,481,503]" name="New Caledonia" pageId="8" pageNumber="236">NEW CALEDONIA</collectingCountry>
.
<collectingRegion id="49F0F80F1C7FFFFBFE03FE73FDC9FE71" box="[425,556,481,503]" country="New Caledonia" name="Province Sud" pageId="8" pageNumber="236">Province Sud</collectingRegion>
. Yaté. Ouinné,
<quantity id="4CCC9B081C7FFFFBFD16FE73FD1EFE71" box="[700,763,481,503]" metricMagnitude="2" metricUnit="m" metricValue="4.1" pageId="8" pageNumber="236" unit="m" value="410.0">
<elevation id="0019D1DE1C7FFFFBFD16FE73FD1EFE71" box="[700,763,481,503]" metricMagnitude="2" metricUnit="m" metricValue="4.1" pageId="8" pageNumber="236" unit="m" value="410.0">410 m</elevation>
</quantity>
,
<geoCoordinate id="EE00502A1C7FFFFBFCAEFE73FC92FE71" box="[772,887,481,503]" degrees="21" direction="south" minutes="58" orientation="latitude" pageId="8" pageNumber="236" precision="15" seconds="26" value="-21.97389">21°58’26”S</geoCoordinate>
,
<geoCoordinate id="EE00502A1C7FFFFBFC2BFE73FBE7FE71" box="[897,1026,481,503]" degrees="166" direction="east" minutes="39" orientation="longitude" pageId="8" pageNumber="236" precision="15" seconds="06" value="166.65166">166°39’06”E</geoCoordinate>
,
<date id="FF8A102D1C7FFFFBFBA1FE73FB4EFE70" box="[1035,1195,481,503]" pageId="8" pageNumber="236" value="2020-10-20">
<collectingDate id="EFCEE9C51C7FFFFBFBA1FE73FB4EFE70" box="[1035,1195,481,503]" pageId="8" pageNumber="236" value="2020-10-20">20 October 2020</collectingDate>
</date>
(fl., fr.),
<emphasis id="B940EAFF1C7FFFFBFAABFE73FED6FD9C" italics="true" pageId="8" pageNumber="236">
<collectorName id="26C1533B1C7FFFFBFAABFE73FAB9FE70" box="[1281,1372,481,502]" pageId="8" pageNumber="236">Lannuzel</collectorName>
,
<collectorName id="26C1533B1C7FFFFBFACFFE70FA71FE71" box="[1381,1428,482,503]" pageId="8" pageNumber="236">Bruy</collectorName>
&amp;
<collectorName id="26C1533B1C7FFFFBFF17FD97FEECFD9C" box="[189,265,517,538]" pageId="8" pageNumber="236">Gâteblé</collectorName>
376
</emphasis>
(
<typeStatus id="548F884F1C7FFFFBFEEAFD97FE7BFD9D" box="[320,414,517,539]" pageId="8" pageNumber="236" type="holotype">Holotype</typeStatus>
:
<specimenCode id="DB929E961C7FFFFBFE0DFD97FDCEFD9D" box="[423,555,517,539]" collectionCode="NOU" country="New Caledonia" httpUri="http://biocol.org/urn:lsid:biocol.org:col:15483" lsid="urn:lsid:biocol.org:col:15483" name="Institut de Recherche pour le Développement" pageId="8" pageNumber="236" type="Herbarium">NOU107436</specimenCode>
!, isotype:
<specimenCode id="DB929E961C7FFFFBFD23FD97FCE5FD9D" box="[649,768,517,539]" collectionCode="P" country="France" lsid="urn:lsid:biocol.org:col:15763" name="Museum National d' Histoire Naturelle, Paris (MNHN) - Vascular Plants" pageId="8" pageNumber="236" type="Herbarium">P00942253</specimenCode>
!)
</materialsCitation>
.
</paragraph>
</subSubSection>
<subSubSection id="C32E65661C7FFFF9FF22FDBBFAB9FD36" lastPageId="10" lastPageNumber="238" pageId="8" pageNumber="236" type="diagnosis">
<paragraph id="8B8B36ED1C7FFFFBFF22FDBBFB24FDE5" blockId="8.[136,1452,481,611]" pageId="8" pageNumber="236">
<emphasis id="B940EAFF1C7FFFFBFF22FDBBFF0EFDB9" bold="true" box="[136,235,553,575]" pageId="8" pageNumber="236">Diagnosis</emphasis>
:—
<taxonomicName id="4C344D6E1C7FFFFBFEA3FDB8FE0AFDB8" box="[265,495,553,575]" class="Magnoliopsida" family="Myrtaceae" genus="Tristaniopsis" kingdom="Plantae" order="Myrtales" pageId="8" pageNumber="236" phylum="Tracheophyta" rank="species" species="planidisca">
<emphasis id="B940EAFF1C7FFFFBFEA3FDB8FE0AFDB8" box="[265,495,553,575]" italics="true" pageId="8" pageNumber="236">Tristaniopsis planidisca</emphasis>
</taxonomicName>
is the only species in the genus in
<collectingCountry id="F323767D1C7FFFFBFC92FDB8FC2EFDB9" box="[824,971,553,575]" name="New Caledonia" pageId="8" pageNumber="236">New Caledonia</collectingCountry>
having glabrous young leaves. It also differs from every other species by its large and flat yellow waxy staminal disc, very visible due to the flat hypanthium.
</paragraph>
<caption id="DF4B66651C7FFFFBFF22F808FC50F852" ID-DOI="http://doi.org/10.5281/zenodo.7523112" ID-Zenodo-Dep="7523112" httpUri="https://zenodo.org/record/7523112/files/figure.png" pageId="8" pageNumber="236" startId="8.[136,229,1946,1968]" targetBox="[151,1435,637,1921]" targetPageId="8">
<paragraph id="8B8B36ED1C7FFFFBFF22F808FC50F852" blockId="8.[136,1452,1946,2004]" pageId="8" pageNumber="236">
<emphasis id="B940EAFF1C7FFFFBFF22F808FF1BF829" bold="true" box="[136,254,1946,1968]" pageId="8" pageNumber="236">FIGURE 6.</emphasis>
Pictures of
<taxonomicName id="4C344D6E1C7FFFFBFEDEF809FDBEF829" box="[372,603,1946,1968]" class="Magnoliopsida" family="Myrtaceae" genus="Tristaniopsis" kingdom="Plantae" order="Myrtales" pageId="8" pageNumber="236" phylum="Tracheophyta" rank="species" species="planidisca">
<emphasis id="B940EAFF1C7FFFFBFEDEF809FDBEF829" box="[372,603,1946,1968]" italics="true" pageId="8" pageNumber="236">Tristaniopsis planidisca</emphasis>
</taxonomicName>
. A—General habit; B—Abaxial surface of the leaf; C—Flowering branch; D—Flower; E—Young fruits; F—Old fruit. Photographer: Lannuzel G. from
<emphasis id="B940EAFF1C7FFFFBFD5DF82CFC4AF855" box="[759,943,1982,2004]" italics="true" pageId="8" pageNumber="236">Gâteblé et al. 1240</emphasis>
.
</paragraph>
</caption>
<caption id="DF4B66651C7EFFFAFF22F89DFCF2F8EB" ID-DOI="http://doi.org/10.5281/zenodo.7523114" ID-Zenodo-Dep="7523114" httpUri="https://zenodo.org/record/7523114/files/figure.png" pageId="9" pageNumber="237" startId="9.[136,229,1807,1829]" targetBox="[244,1289,209,1764]" targetPageId="9">
<paragraph id="8B8B36ED1C7EFFFAFF22F89DFCF2F8EB" blockId="9.[136,1452,1807,1902]" pageId="9" pageNumber="237">
<emphasis id="B940EAFF1C7EFFFAFF22F89DFF19F8A3" bold="true" box="[136,252,1807,1829]" pageId="9" pageNumber="237">FIGURE 7.</emphasis>
Drawing of
<taxonomicName id="4C344D6E1C7EFFFAFEDAF882FDB1F8A3" box="[368,596,1808,1829]" class="Magnoliopsida" family="Myrtaceae" genus="Tristaniopsis" kingdom="Plantae" order="Myrtales" pageId="9" pageNumber="237" phylum="Tracheophyta" rank="species" species="planidisca">
<emphasis id="B940EAFF1C7EFFFAFEDAF882FDB1F8A3" box="[368,596,1808,1829]" italics="true" pageId="9" pageNumber="237">Tristaniopsis planidisca</emphasis>
</taxonomicName>
. A—Flowering branches; B—Abaxial (left) and adaxial (right) sides of the leaf; C—Detail of the fine pubescence and a bracteole on inflorescence axis; D—Inflorescences with flowers and young fruits; E—Old infrutescence with opened fruits; F—Flower; G—Immature fruit. Illustrator: Ramon L.
</paragraph>
</caption>
<paragraph id="8B8B36ED1C7DFFF9FF22FF0CFD07FD0A" blockId="10.[136,1452,158,1157]" pageId="10" pageNumber="238">
Small tree,
<quantity id="4CCC9B081C7DFFF9FEAFFF0CFEAFFF3F" box="[261,330,158,185]" metricMagnitude="0" metricUnit="m" metricValue="4.0" metricValueMax="6.0" metricValueMin="2.0" pageId="10" pageNumber="238" unit="m" value="4.0" valueMax="6.0" valueMin="2.0">2–6 m</quantity>
high, architectural model unknown. Plants hermaphrodite. Glabrous on vegetative parts, indumentum absent on young leaves. Bark gray, not peeling, fissured. Twigs rounded to slightly squared. Leaves spirally arranged; blades lanceolate, 7–15 ×
<quantity id="4CCC9B081C7DFFF9FE0EFF74FDC7FE87" box="[420,546,230,257]" metricMagnitude="-2" metricUnit="m" metricValue="2.9" metricValueMax="3.5" metricValueMin="2.3" pageId="10" pageNumber="238" unit="cm" value="2.9" valueMax="3.5" valueMin="2.3">2.3–3.5 cm</quantity>
, dark green adaxially, light green abaxially (
<emphasis id="B940EAFF1C7DFFF9FBADFF75FBB4FE86" box="[1031,1105,231,256]" italics="true" pageId="10" pageNumber="238">in vivo</emphasis>
), slightly coriaceous, glabrous; base attenuate; apex obtuse; margin entire. Venation brochidodromous; midrib impressed adaxially, prominent abaxially; secondary veins visible (
<emphasis id="B940EAFF1C7DFFF9FDA5FEBDFD80FECE" box="[527,613,303,328]" italics="true" pageId="10" pageNumber="238">in sicco</emphasis>
), tertiary venation obscure. Petiole flattened adaxially,
<quantity id="4CCC9B081C7DFFF9FB63FEBCFAA4FECF" box="[1225,1345,302,329]" metricMagnitude="-2" metricUnit="m" metricValue="1.25" metricValueMax="1.5" metricValueMin="1.0" pageId="10" pageNumber="238" unit="mm" value="12.5" valueMax="15.0" valueMin="10.0">10–15 mm</quantity>
× ca.
<quantity id="4CCC9B081C7DFFF9FA22FEBCFF53FEEB" metricMagnitude="-3" metricUnit="m" metricValue="1.5" pageId="10" pageNumber="238" unit="mm" value="1.5">1.5 mm</quantity>
, green to reddish (
<emphasis id="B940EAFF1C7DFFF9FE2BFEC1FE2EFEEA" box="[385,459,339,364]" italics="true" pageId="10" pageNumber="238">in vivo</emphasis>
). Inflorescences thyrsoid, axillary, with 9–14 flowers; primary inflorescence peduncle ca. 6 ×
<quantity id="4CCC9B081C7DFFF9FF18FEE4FEECFE17" box="[178,265,374,401]" metricMagnitude="-3" metricUnit="m" metricValue="1.9" pageId="10" pageNumber="238" unit="mm" value="1.9">1.9 mm</quantity>
, flattened, without bracts, bracteoles widely triangular, ca. 1 ×
<quantity id="4CCC9B081C7DFFF9FC68FEE4FBFFFE17" box="[962,1050,374,401]" metricMagnitude="-4" metricUnit="m" metricValue="5.0" pageId="10" pageNumber="238" unit="mm" value="0.5">0.5 mm</quantity>
, at secondary and tertiary axis axils. All inflorescence axes moderately pubescent. Flowers pentamerous; pedicel 2–4 ×
<quantity id="4CCC9B081C7DFFF9FB88FE08FB80FE33" box="[1058,1125,410,437]" metricMagnitude="-3" metricUnit="m" metricValue="1.0" pageId="10" pageNumber="238" unit="mm" value="1.0">1 mm</quantity>
, puberulous; hypanthium flat at anthesis, not extended beyond ovary summit, 2 ×
<quantity id="4CCC9B081C7DFFF9FD76FE2CFCD9FE5F" box="[732,828,446,473]" metricMagnitude="-3" metricUnit="m" metricValue="2.5" metricValueMax="3.0" metricValueMin="2.0" pageId="10" pageNumber="238" unit="mm" value="2.5" valueMax="3.0" valueMin="2.0">2–3 mm</quantity>
, puberulous or with scattered hairs; calyx lobes spread, yellow (
<emphasis id="B940EAFF1C7DFFF9FF4EFE71FECAFE7A" box="[228,303,483,508]" italics="true" pageId="10" pageNumber="238">in vivo</emphasis>
), triangular, 1.8 ×
<quantity id="4CCC9B081C7DFFF9FE57FE70FDB1FE7B" box="[509,596,482,509]" metricMagnitude="-3" metricUnit="m" metricValue="1.8" pageId="10" pageNumber="238" unit="mm" value="1.8">1.8 mm</quantity>
, with an obtuse apex, glabrous adaxially, puberulous abaxially; petals yellow (
<emphasis id="B940EAFF1C7DFFF9FF3BFD95FF39FDA6" box="[145,220,519,544]" italics="true" pageId="10" pageNumber="238">in vivo</emphasis>
), orbicular,
<quantity id="4CCC9B081C7DFFF9FECEFD94FE5CFDA7" box="[356,441,518,545]" metricMagnitude="-3" metricUnit="m" metricValue="1.5" pageId="10" pageNumber="238" unit="mm" value="1.5">1.5 mm</quantity>
in diameter, puberulent, with oil-dots; stamens yellow to orange (
<emphasis id="B940EAFF1C7DFFF9FB3EFD95FB3AFDA6" box="[1172,1247,519,544]" italics="true" pageId="10" pageNumber="238">in vivo</emphasis>
), 1–3 per fascicle, fused on ca.
<quantity id="4CCC9B081C7DFFF9FEB1FDB8FE90FDC3" box="[283,373,554,581]" metricMagnitude="-4" metricUnit="m" metricValue="9.0" pageId="10" pageNumber="238" unit="mm" value="0.9">0.9 mm</quantity>
, anthers 0.4 ×
<quantity id="4CCC9B081C7DFFF9FD8AFDB8FD9FFDC3" box="[544,634,554,581]" metricMagnitude="-4" metricUnit="m" metricValue="4.0" pageId="10" pageNumber="238" unit="mm" value="0.4">0.4 mm</quantity>
, filaments
<quantity id="4CCC9B081C7DFFF9FD53FDB8FCDEFDC3" box="[761,827,554,581]" metricMagnitude="-3" metricUnit="m" metricValue="1.0" pageId="10" pageNumber="238" unit="mm" value="1.0">1 mm</quantity>
long, fused on half the length, inserted on a flat waxy yellow staminal disc
<quantity id="4CCC9B081C7DFFF9FEDFFDDCFE36FDEF" box="[373,467,590,617]" metricMagnitude="-3" metricUnit="m" metricValue="3.5" metricValueMax="4.0" metricValueMin="3.0" pageId="10" pageNumber="238" unit="mm" value="3.5" valueMax="4.0" valueMin="3.0">3–4 mm</quantity>
in diameter. Ovary semi-inferior,
<quantity id="4CCC9B081C7DFFF9FCFBFDDCFC42FDEF" box="[849,935,590,617]" metricMagnitude="-3" metricUnit="m" metricValue="1.4" pageId="10" pageNumber="238" unit="mm" value="1.4">1.4 mm</quantity>
high,
<quantity id="4CCC9B081C7DFFF9FC47FDDCFBA6FDEF" box="[1005,1091,590,617]" metricMagnitude="-3" metricUnit="m" metricValue="1.8" pageId="10" pageNumber="238" unit="mm" value="1.8">1.8 mm</quantity>
in diameter. Style
<quantity id="4CCC9B081C7DFFF9FABCFDDCFA89FDEF" box="[1302,1388,590,617]" metricMagnitude="-3" metricUnit="m" metricValue="1.1" pageId="10" pageNumber="238" unit="mm" value="1.1">1.1 mm</quantity>
long. Fruit a trilocular capsule, 5 ×
<quantity id="4CCC9B081C7DFFF9FE71FDE0FDFAFD0B" box="[475,543,626,653]" metricMagnitude="-3" metricUnit="m" metricValue="5.0" pageId="10" pageNumber="238" unit="mm" value="5.0">5 mm</quantity>
. Seeds unknown.
</paragraph>
<paragraph id="8B8B36ED1C7DFFF9FF17FD04FAB9FD36" blockId="10.[136,1452,158,1157]" box="[189,1372,662,689]" pageId="10" pageNumber="238">
<emphasis id="B940EAFF1C7DFFF9FF17FD04FEDCFD36" bold="true" box="[189,313,662,688]" pageId="10" pageNumber="238">Phenology</emphasis>
:—The species was observed flowering and fruiting in October, and seen in fruit only in April.
</paragraph>
</subSubSection>
<subSubSection id="C32E65661C7DFFF9FF17FD28FB66FD7E" pageId="10" pageNumber="238" type="distribution">
<paragraph id="8B8B36ED1C7DFFF9FF17FD28FB66FD7E" blockId="10.[136,1452,158,1157]" pageId="10" pageNumber="238">
<emphasis id="B940EAFF1C7DFFF9FF17FD28FE0DFD52" bold="true" box="[189,488,698,724]" pageId="10" pageNumber="238">Distribution and Ecology</emphasis>
:—The species is known from two localities on the southern east coast of Grande Terre (
<figureCitation id="130F2A681C7DFFF9FF3AFD4CFF30FD7E" box="[144,213,734,760]" captionStart="FIGURE 3" captionStartId="4.[136,229,1307,1329]" captionTargetBox="[192,1401,209,1263]" captionTargetId="figure-18@4.[164,1423,190,1283]" captionTargetPageId="4" captionText="FIGURE 3. Distribution map of Croton barrabeae (black large dots), Geijera tartarea (black pentagons) and Tristaniopsis planidisca (grey squares). The T’s represent the locality of the type specimens for each species. The black triangles represent the two highest mountains in New Caledonia. The small black dots represent the main cities in the South Province and the North Province. Grayed areas represent ultramafic substrates (from DIMENC/SGNC-BRGM 2010)." figureDoi="http://doi.org/10.5281/zenodo.7523104" httpUri="https://zenodo.org/record/7523104/files/figure.png" pageId="10" pageNumber="238">Fig. 3</figureCitation>
). It was observed in high dense shrublands and low forests on ultramafic substrates.
</paragraph>
</subSubSection>
<subSubSection id="C32E65661C7DFFF9FF17FC90FA8CFB02" pageId="10" pageNumber="238" type="etymology">
<paragraph id="8B8B36ED1C7DFFF9FF17FC90FAE7FC9A" blockId="10.[136,1452,158,1157]" box="[189,1282,770,797]" pageId="10" pageNumber="238">
<emphasis id="B940EAFF1C7DFFF9FF17FC90FEDBFC9A" bold="true" box="[189,318,770,796]" pageId="10" pageNumber="238">Etymology</emphasis>
:—
<taxonomicName id="4C344D6E1C7DFFF9FEC8FC91FD8AFC9A" box="[354,623,770,796]" class="Magnoliopsida" family="Myrtaceae" genus="Tristaniopsis" kingdom="Plantae" order="Myrtales" pageId="10" pageNumber="238" phylum="Tracheophyta" rank="species" species="planidisca">
<emphasis id="B940EAFF1C7DFFF9FEC8FC91FD8AFC9A" box="[354,623,770,796]" italics="true" pageId="10" pageNumber="238">Tristaniopsis planidisca</emphasis>
</taxonomicName>
is named after the characteristic shape of its staminal disc.
</paragraph>
<paragraph id="8B8B36ED1C7DFFF9FF17FCB4FDA9FC0E" blockId="10.[136,1452,158,1157]" pageId="10" pageNumber="238">
<emphasis id="B940EAFF1C7DFFF9FF17FCB4FE46FCC6" bold="true" box="[189,419,806,832]" pageId="10" pageNumber="238">Species recognition</emphasis>
:—
<taxonomicName id="4C344D6E1C7DFFF9FE6CFCB5FD36FCC6" box="[454,723,806,832]" class="Magnoliopsida" family="Myrtaceae" genus="Tristaniopsis" kingdom="Plantae" order="Myrtales" pageId="10" pageNumber="238" phylum="Tracheophyta" rank="species" species="planidisca">
<emphasis id="B940EAFF1C7DFFF9FE6CFCB5FD36FCC6" box="[454,723,806,832]" italics="true" pageId="10" pageNumber="238">Tristaniopsis planidisca</emphasis>
</taxonomicName>
is recognizable by its flowers with a flat hypanthium at anthesis, and the flat waxy yellow staminal disc. It is also the only
<taxonomicName id="4C344D6E1C7DFFF9FCAFFCD9FC08FCE2" box="[773,1005,842,868]" pageId="10" pageNumber="238">
<emphasis id="B940EAFF1C7DFFF9FCAFFCD9FC73FCE2" box="[773,918,843,868]" italics="true" pageId="10" pageNumber="238">Tristaniopsis</emphasis>
species
</taxonomicName>
in
<collectingCountry id="F323767D1C7DFFF9FBBAFCD9FB58FCE2" box="[1040,1213,842,869]" name="New Caledonia" pageId="10" pageNumber="238">New Caledonia</collectingCountry>
that is glabrous in all sterile parts, including the young leaves.
</paragraph>
<paragraph id="8B8B36ED1C7DFFF9FF17FC00FBFAFB9E" blockId="10.[136,1452,158,1157]" pageId="10" pageNumber="238">
<emphasis id="B940EAFF1C7DFFF9FF17FC00FE48FC2A" bold="true" box="[189,429,914,940]" pageId="10" pageNumber="238">Conservation status</emphasis>
:—
<taxonomicName id="4C344D6E1C7DFFF9FE7BFC01FD05FC2A" box="[465,736,914,940]" class="Magnoliopsida" family="Myrtaceae" genus="Tristaniopsis" kingdom="Plantae" order="Myrtales" pageId="10" pageNumber="238" phylum="Tracheophyta" rank="species" species="planidisca">
<emphasis id="B940EAFF1C7DFFF9FE7BFC01FD05FC2A" box="[465,736,914,940]" italics="true" pageId="10" pageNumber="238">Tristaniopsis planidisca</emphasis>
</taxonomicName>
is known from two populations, one of which is located on a mining concession that is soon to be exploited. The EOO calculated is
<quantity id="4CCC9B081C7DFFF9FC09FC24FC39FC55" box="[931,988,950,979]" metricMagnitude="3" metricUnit="m" metricValue="8.0" pageId="10" pageNumber="238" unit="km" value="8.0">8 km</quantity>
² and the AOO is
<quantity id="4CCC9B081C7DFFF9FB0BFC24FB38FC55" box="[1185,1245,950,979]" metricMagnitude="3" metricUnit="m" metricValue="8.0" pageId="10" pageNumber="238" unit="km" value="8.0">8 km</quantity>
². Consequently,
<taxonomicName id="4C344D6E1C7DFFF9FA3DFC25FF18FC72" class="Magnoliopsida" family="Myrtaceae" genus="Tristaniopsis" kingdom="Plantae" order="Myrtales" pageId="10" pageNumber="238" phylum="Tracheophyta" rank="species" species="planidisca">
<emphasis id="B940EAFF1C7DFFF9FA3DFC25FF18FC72" italics="true" pageId="10" pageNumber="238">T. planidisca</emphasis>
</taxonomicName>
has been assigned a conservation status of Endangered (EN) B1 ab(i,ii,iii,iv,v)+2ab(i,ii,iii,iv,v) by the New Caledonian Red List Authority on
<date id="FF8A102D1C7DFFF9FDA1FC6CFD6FFB9E" box="[523,650,1022,1048]" pageId="10" pageNumber="238" value="2022-09-02">02/09/2022</date>
(Endemia &amp; RLA
<bibRefCitation id="EFA54B1C1C7DFFF9FCF5FC6CFBF6FB9E" author="Flore NC" box="[863,1043,1022,1048]" pageId="10" pageNumber="238" pagination="2014 - 2021" refId="ref6060" refString="Endemia &amp; RLA Flore NC (2022) La liste rouge de la flore menacee de Nouvelle-Caledonie, synthese 2014 - 2021. 4 pp." type="book chapter" year="2022">Flore NC, 2022</bibRefCitation>
).
</paragraph>
<paragraph id="8B8B36ED1C7DFFF9FF17FBB0FA8CFB02" blockId="10.[136,1452,158,1157]" pageId="10" pageNumber="238">
<materialsCitation id="3B5C3CB01C7DFFF9FF17FBB0FB12FBE6" collectingDate="2020-10-20" collectionCode="NOU" collectorName="Gateble &amp; Bruy &amp; Lannuzel" country="New Caledonia" elevation="415" latitude="-21.97389" location="Ouinne" longLatPrecision="21" longitude="166.65166" municipality="Yate" pageId="10" pageNumber="238" specimenCode="NOU107369" specimenCount="2" stateProvince="Province Sud" typeStatus="paratype">
<emphasis id="B940EAFF1C7DFFF9FF17FBB0FD3FFBBA" bold="true" box="[189,730,1058,1084]" pageId="10" pageNumber="238">
Additional specimens examined (
<typeStatus id="548F884F1C7DFFF9FDFDFBB0FD37FBBA" box="[599,722,1058,1084]" pageId="10" pageNumber="238" type="paratype">Paratypes</typeStatus>
)
</emphasis>
:
<emphasis id="B940EAFF1C7DFFF9FD4BFBB1FD1FFBBA" box="[737,762,1059,1084]" italics="true" pageId="10" pageNumber="238">—</emphasis>
<collectingCountry id="F323767D1C7DFFF9FD50FBB1FC08FBBA" box="[762,1005,1058,1085]" name="New Caledonia" pageId="10" pageNumber="238">NEW CALEDONIA</collectingCountry>
.
<collectingRegion id="49F0F80F1C7DFFF9FC57FBB0FB79FBBA" box="[1021,1180,1058,1084]" country="New Caledonia" name="Province Sud" pageId="10" pageNumber="238">Province Sud</collectingRegion>
.
<collectingMunicipality id="6BEFAC971C7DFFF9FB01FBB0FB07FBBA" box="[1195,1250,1058,1084]" pageId="10" pageNumber="238">Yaté</collectingMunicipality>
:
<location id="8EEB60361C7DFFF9FB58FBB0FAA2FBBA" LSID="urn:lsid:plazi:treatment:039D87FB1C7FFFF9FF22FE2BFA8CFB02:8EEB60361C7DFFF9FB58FBB0FAA2FBBA" box="[1266,1351,1058,1084]" country="New Caledonia" latitude="-21.97389" longLatPrecision="21" longitude="166.65166" municipality="Yate" name="Ouinne" pageId="10" pageNumber="238" stateProvince="Province Sud">Ouinné</location>
,
<quantity id="4CCC9B081C7DFFF9FAF2FBB0FA42FBBB" box="[1368,1447,1058,1085]" metricMagnitude="2" metricUnit="m" metricValue="4.15" pageId="10" pageNumber="238" unit="m" value="415.0">
<elevation id="0019D1DE1C7DFFF9FAF2FBB0FA42FBBB" box="[1368,1447,1058,1085]" metricMagnitude="2" metricUnit="m" metricValue="4.15" pageId="10" pageNumber="238" unit="m" value="415.0">415 m</elevation>
</quantity>
,
<geoCoordinate id="EE00502A1C7DFFF9FF22FBD4FEEBFBE7" box="[136,270,1094,1121]" degrees="21" direction="south" minutes="58" orientation="latitude" pageId="10" pageNumber="238" precision="15" seconds="26" value="-21.97389">21°58’26”S</geoCoordinate>
,
<geoCoordinate id="EE00502A1C7DFFF9FEB1FBD4FE54FBE6" box="[283,433,1094,1120]" degrees="166" direction="east" minutes="39" orientation="longitude" pageId="10" pageNumber="238" precision="15" seconds="06" value="166.65166">166°39’06”E</geoCoordinate>
,
<date id="FF8A102D1C7DFFF9FE17FBD4FD9FFBE6" box="[445,634,1094,1120]" pageId="10" pageNumber="238" value="2020-10-20">
<collectingDate id="EFCEE9C51C7DFFF9FE17FBD4FD9FFBE6" box="[445,634,1094,1120]" pageId="10" pageNumber="238" value="2020-10-20">20 October 2020</collectingDate>
</date>
(fl., fr.),
<emphasis id="B940EAFF1C7DFFF9FD4BFBD4FBACFBE6" box="[737,1097,1094,1121]" italics="true" pageId="10" pageNumber="238">
<collectorName id="26C1533B1C7DFFF9FD4BFBD4FCD9FBE6" box="[737,828,1094,1120]" pageId="10" pageNumber="238">Gâteblé</collectorName>
,
<collectorName id="26C1533B1C7DFFF9FCE2FBD5FC9BFBE6" box="[840,894,1095,1120]" pageId="10" pageNumber="238">Bruy</collectorName>
&amp;
<collectorName id="26C1533B1C7DFFF9FC09FBD4FBEFFBE6" box="[931,1034,1094,1120]" pageId="10" pageNumber="238">Lannuzel</collectorName>
1240
</emphasis>
(
<specimenCode id="DB929E961C7DFFF9FBF2FBD4FB0AFBE6" box="[1112,1263,1094,1120]" collectionCode="NOU" country="New Caledonia" httpUri="http://biocol.org/urn:lsid:biocol.org:col:15483" lsid="urn:lsid:biocol.org:col:15483" name="Institut de Recherche pour le Développement" pageId="10" pageNumber="238" type="Herbarium">NOU107369</specimenCode>
)
</materialsCitation>
;
<materialsCitation id="3B5C3CB01C7DFFF9FAABFBD4FA83FB02" collectingDate="2004-08-08" collectionCode="NOU, P" collectorName="Munzinger" country="New Caledonia" latitude="-22.143888" longLatPrecision="21" longitude="166.89417" pageId="10" pageNumber="238" specimenCode="NOU003844, P04682693" specimenCount="1" stateProvince="Province Sud">
Yaté. Ancienne route à horaire, [
<geoCoordinate id="EE00502A1C7DFFF9FEEBFBF8FE2CFB02" box="[321,457,1130,1156]" degrees="22" direction="south" minutes="08" orientation="latitude" pageId="10" pageNumber="238" precision="15" seconds="38" value="-22.143888">22°08’38”S</geoCoordinate>
,
<geoCoordinate id="EE00502A1C7DFFF9FE7FFBF8FD8BFB03" box="[469,622,1130,1157]" degrees="166" direction="east" minutes="53" orientation="longitude" pageId="10" pageNumber="238" precision="15" seconds="39" value="166.89417">166°53’39”E</geoCoordinate>
],
<date id="FF8A102D1C7DFFF9FD2BFBF8FCD7FB02" box="[641,818,1130,1156]" pageId="10" pageNumber="238" value="2004-08-08">
<collectingDate id="EFCEE9C51C7DFFF9FD2BFBF8FCD7FB02" box="[641,818,1130,1156]" pageId="10" pageNumber="238" value="2004-08-08">08 August 2004</collectingDate>
</date>
(fr.),
<emphasis id="B940EAFF1C7DFFF9FCD8FBF9FBCFFB02" box="[882,1066,1130,1156]" italics="true" pageId="10" pageNumber="238">
<collectorName id="26C1533B1C7DFFF9FCD8FBF9FC0EFB02" box="[882,1003,1131,1156]" pageId="10" pageNumber="238">Munzinger</collectorName>
2296
</emphasis>
(
<specimenCode id="DB929E961C7DFFF9FB92FBF8FB2BFB02" box="[1080,1230,1130,1156]" collectionCode="NOU" country="New Caledonia" httpUri="http://biocol.org/urn:lsid:biocol.org:col:15483" lsid="urn:lsid:biocol.org:col:15483" name="Institut de Recherche pour le Développement" pageId="10" pageNumber="238" type="Herbarium">NOU003844</specimenCode>
,
<specimenCode id="DB929E961C7DFFF9FB73FBF8FABBFB02" box="[1241,1374,1130,1156]" collectionCode="P" country="France" lsid="urn:lsid:biocol.org:col:15763" name="Museum National d' Histoire Naturelle, Paris (MNHN) - Vascular Plants" pageId="10" pageNumber="238" type="Herbarium">P04682693</specimenCode>
)
</materialsCitation>
.
</paragraph>
</subSubSection>
</treatment>
</document>
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