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<document ID-CLB-Dataset="35375" ID-DOI="http://dx.doi.org/10.3897/phytokeys.60.6734" ID-GBIF-Dataset="48671e75-dd24-4e6d-8514-b0546ffd3fe3" ID-PMC="PMC4816990" ID-Pensoft-Pub="1314-2003-60-49" ID-Pensoft-UUID="FFC26762742EFFBDFFAD0867FFB3FFBB" ID-PubMed="27081344" ID-Zenodo-Dep="576336" ModsDocAuthor="" ModsDocDate="2016" ModsDocID="1314-2003-60-49" ModsDocOrigin="PhytoKeys 60" ModsDocTitle="Vernonieae (Asteraceae) of southern Africa: A generic disposition of the species and a study of their pollen" checkinTime="1455253102424" checkinUser="pensoft" docAuthor="Robinson, Harold, Skvarla, John J. &amp; Funk, Vicki A." docDate="2016" docId="644FE16D5B13F6259071E7257DFB0375" docLanguage="en" docName="PhytoKeys 60: 49-126" docOrigin="PhytoKeys 60" docSource="http://dx.doi.org/10.3897/phytokeys.60.6734" docTitle="Polydora Fenzl 1844" docType="treatment" docVersion="8" id="FFC26762742EFFBDFFAD0867FFB3FFBB" lastPageNumber="90" masterDocId="FFC26762742EFFBDFFAD0867FFB3FFBB" masterDocTitle="Vernonieae (Asteraceae) of southern Africa: A generic disposition of the species and a study of their pollen" masterLastPageNumber="126" masterPageNumber="49" pageNumber="89" updateTime="1732645731463" updateUser="ExternalLinkService">
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<mods:title id="F44FCC33DACAD9EFBA1C67EC6ACA0F08">Vernonieae (Asteraceae) of southern Africa: A generic disposition of the species and a study of their pollen</mods:title>
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<treatment id="644FE16D5B13F6259071E7257DFB0375" ID-GBIF-Taxon="127870778" LSID="urn:lsid:plazi:treatment:644FE16D5B13F6259071E7257DFB0375" httpUri="http://treatment.plazi.org/id/644FE16D5B13F6259071E7257DFB0375" lastPageId="41" lastPageNumber="90" pageId="40" pageNumber="89" scope_family="Asteraceae">
<subSubSection id="70816D1DC0D909C216DC7AB84622D57C" pageId="40" pageNumber="89" type="nomenclature">
<paragraph id="2DC80D57A0AAD772A38117ABCF2B5CB6" pageId="40" pageNumber="89">
<taxonomicName id="B872D17F8F97C24BD40E3E5CDC3B5462" ID-CoL="63ND5" LSID="644FE16D-5B13-F625-9071-E7257DFB0375" authority="Fenzl, 1844" authorityName="Fenzl" authorityYear="1844" class="Magnoliopsida" family="Asteraceae" genus="Polydora" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Polydora" order="Asterales" pageId="40" pageNumber="89" phylum="Tracheophyta" rank="genus">Polydora Fenzl, 1844</taxonomicName>
<figureCitation id="C42CD181C8837CAEA759A472B65A8CBE" captionStart="Figure 20" captionStartId="F20" captionText="Figure 20. Photographs of Parapolydora and Polydora: A-C Parapolydora fastigiata (Oliv. &amp; Hiern in Oliv.) H. Rob. D-F Polydora poskeana (Vatke &amp; Hildebrandt) H. Rob. See Appendix C for citation details." figureDoi="10.3897/phytokeys.60.6734.figure20" httpUri="https://binary.pensoft.net/fig/77492" pageId="40" pageNumber="89">
Figures 20
<normalizedToken id="EB1539BB11A512A3119BD1CEDFAFC723" originalValue="CF">C-F</normalizedToken>
</figureCitation>
<figureCitation id="953D5113F7A51D07795664FA266EB619" captionStart="Figure 22" captionStartId="F22" captionText="Figure 22. Scanning electron micrographs of Polydora angustifolia (Steetz) H, Rob. A Intact grain with visible pore B Intact grain with 2 visible pores in adjacent lacunae C Grain with muri partially removed showing distorted inner surface and five pores, one pore on opposite surface visible through torn area. A from Brass 16090 B, C from Christensen &amp; Patel 1457. Views from Robinson &amp; Skvarla, PhytoKeys 2014." figureDoi="10.3897/phytokeys.60.6734.figure22" httpUri="https://binary.pensoft.net/fig/77494" pageId="40" pageNumber="89">
; Fig. 22
<normalizedToken id="8760198C82B9B6AFBBC4F138F90E808D" originalValue="AC">A-C</normalizedToken>
</figureCitation>
</paragraph>
</subSubSection>
<subSubSection id="D0AF1BBBC8A5119AA758F3DAD1557B48" pageId="41" pageNumber="90" type="reference_group">
<paragraph id="E60868E4FDAA21C8A600759BC438620E" pageId="41" pageNumber="90">
<taxonomicName id="31B818920C3239DF99F061CA875B7D1E" authorityName="Fenzl" authorityYear="1844" class="Magnoliopsida" family="Asteraceae" genus="Polydora" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Polydora" order="Asterales" pageId="41" pageNumber="90" phylum="Tracheophyta" rank="genus">
<pageBreakToken id="A48F71D69320248245068036549CCFAC" pageId="41" pageNumber="90" start="start">Polydora</pageBreakToken>
</taxonomicName>
Fenzl, Flora 27: 312. 1844. - Type:
<taxonomicName id="718CD757FB0E22555AC731292F20E2F6" authorityName="Fenzl" authorityYear="1844" class="Magnoliopsida" family="Asteraceae" genus="Polydora" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Polydora stoechadifolia" order="Asterales" pageId="41" pageNumber="90" phylum="Tracheophyta" rank="species" species="stoechadifolia">
<emphasis id="E0960D70341C5FC4C008AAB11798771A" italics="true" pageId="41" pageNumber="90">Polydora stoechadifolia</emphasis>
</taxonomicName>
Fenzl =
<taxonomicName id="7AF39650B01FF3FB85A48BF65796241C" class="Magnoliopsida" family="Asteraceae" genus="Webbia" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Webbia serratuloides" order="Asterales" pageId="41" pageNumber="90" phylum="Tracheophyta" rank="species" species="serratuloides">
<emphasis id="93F1BC2A902741DE1B063D3DE324333E" italics="true" pageId="41" pageNumber="90">Webbia serratuloides</emphasis>
</taxonomicName>
DC.
</paragraph>
<paragraph id="E7E9E2051205C37CBDD6A61BC6BE9B1C" pageId="41" pageNumber="90">
<taxonomicName id="0BAA1781AFC9D20A86961F45BF84AEC9" class="Magnoliopsida" family="Asteraceae" genus="Crystallopollen" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Crystallopollen" order="Asterales" pageId="41" pageNumber="90" phylum="Tracheophyta" rank="genus">Crystallopollen</taxonomicName>
Steetz in Peters, Reise Mossamb. Bot. 363. 1864. - Type:
<taxonomicName id="0FDFBE8BB206FB42FA35B0755F57BEDA" class="Magnoliopsida" family="Asteraceae" genus="Crystallopollen" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Crystallopollen angustifolium" order="Asterales" pageId="41" pageNumber="90" phylum="Tracheophyta" rank="species" species="angustifolium">
<emphasis id="49CD6D574713B728E31F2092E6856F38" italics="true" pageId="41" pageNumber="90">Crystallopollen angustifolium</emphasis>
</taxonomicName>
Steetz
</paragraph>
</subSubSection>
<subSubSection id="5BCD2C21599CEE429054516C00E423BA" pageId="41" pageNumber="90" type="resources">
<paragraph id="920D2256CCD1C27B67F6E19585DBCAD9" pageId="41" pageNumber="90">Resources.</paragraph>
<paragraph id="9325D5B1E4B88A81E9CA869C4A459523" pageId="41" pageNumber="90">
Some species of the genus are treated by
<bibRefCitation id="0417B5365A0526689DF46F86E62F88FC" author="Pope, GV" journalOrPublisher="Kew Bulletin" pageId="51" pageNumber="100" pagination="393 - 397" publicationUrl="10.2307/4102946" refId="B36" refString="Pope, GV, 1986. Vernonia chloropappa (Compositae) and related species in tropical Africa. Kew Bulletin 41: 393 - 397, DOI: 10.2307/4102946" title="Vernonia chloropappa (Compositae) and related species in tropical Africa." url="10.2307/4102946" volume="41" year="1986">Pope (1986)</bibRefCitation>
.
</paragraph>
</subSubSection>
<subSubSection id="0A908881BA8106C99942E6A2797396A8" pageId="41" pageNumber="90" type="descriptions">
<paragraph id="955890C3ED79F4295CAC1CE2E6580E35" pageId="41" pageNumber="90">Descriptions.</paragraph>
<paragraph id="E32D28CAF8DAC1A8DBBCD0CB3D59A52C" pageId="41" pageNumber="90">
Mostly annuals; stems with L-shaped hairs bearing elongate one-armed cap-cells. Leaves alternate. Inflorescence a thyrsoid panicle with corymbiform cymose branches bearing pedunculate heads or a single terminal head. Involucral bracts ca. 80 in ca, seven series, often with widely scarious margins and awns often black at tips; receptacles epaleaceous. Florets ca. 30 in a head; corollas whitish to purplish, basal tube long, narrowly funnelform distally, throat as long as the narrow glabrous lobes; anther bases plain, not tailed; apical appendage glabrous, with thin cell walls, sometimes weakly ornamented; style base with distinct annular node; branches with acicular sweeping hairs. Achenes 5 or 8-10-ribbed, setuliferous with setulae scarcely divided at tips, idioblasts present but not grouped, raphids elongate; pappus with copious barbellate setae, greenish, yellowish or tawny, rarely white, outer pappus short, squamiform. Chromosome number n = 9, 10 (
<bibRefCitation id="A8F7AD0377E843EF2ADBB9D4EB168500" author="Jones, SB" journalOrPublisher="Bulletin of the Torrey Botanical Club" pageId="50" pageNumber="99" pagination="79 - 84" publicationUrl="10.2307/2484281" refId="B21" refString="Jones, SB, 1979. Chromosomes of the Vernonieae (Compositae). Bulletin of the Torrey Botanical Club 106: 79 - 84, DOI: 10.2307/2484281" title="Chromosomes of the Vernonieae (Compositae)." url="10.2307/2484281" volume="106" year="1979">Jones 1979</bibRefCitation>
,
<bibRefCitation id="7864B48A749C2567967DE15C795F1B4A" author="Jones, SB" editor="Loeve, A" journalOrPublisher="Taxon" pageId="50" pageNumber="99" pagination="119 - 128" publicationUrl="http://www.jstor.org/stable/1219710?seq=1page_scan_tab_contents" refId="B22" refString="Jones, SB, 1982. . In: Loeve, A, Ed., IOPB Chromosome number reports LXXIV. Taxon 31: 119 - 128, http://www.jstor.org/stable/1219710?seq=1page_scan_tab_contents" url="http://www.jstor.org/stable/1219710?seq=1page_scan_tab_contents" volume="31" volumeTitle="IOPB Chromosome number reports LXXIV." year="1982">1982</bibRefCitation>
,
<bibRefCitation id="47F0E43994A570B024365217F468A4BC" author="Ayodele, MS" journalOrPublisher="Feddes Repertorium" pageId="49" pageNumber="98" pagination="7 - 8" publicationUrl="10.1002/fedr.19991100715" refId="B3" refString="Ayodele, MS, 1999. Karyomorphological studies in some Nigerian species of Vernonia Schreb. (Asteraceae) with different growth forms. Feddes Repertorium 110: 7 - 8, DOI: 10.1002/fedr.19991100715" title="Karyomorphological studies in some Nigerian species of Vernonia Schreb. (Asteraceae) with different growth forms." url="10.1002/fedr.19991100715" volume="110" year="1999">Ayodele 1999</bibRefCitation>
).
</paragraph>
<paragraph id="3D42E4B7CB13EA5FBEB1C7054527ABE8" pageId="41" pageNumber="90">
Pollen lophate with ca. 32 lacunae, with five or more pores that seem to be rather asymmetrically distributed on the grains; the pores occur in lacunae that, in a few cases, are adjacent; margins of muri minutely echinate to psilate, without micropunctations, baculae closely spaced in single evenly spaced row under each murus, baculae in turn subtended by
<normalizedToken id="067D1AC29BAF7356DFDCF9680EB9BC88" originalValue="“rhizomate”">&quot;rhizomate&quot;</normalizedToken>
structure that is weakly attached to the footlayer, the muri thus easily stripping away from the footlayer (Fig.
<figureCitation id="7CD7AAAEB25B15CDD0280E21912ECD96" captionStart="Figure 22" captionStartId="F22" captionText="Figure 22. Scanning electron micrographs of Polydora angustifolia (Steetz) H, Rob. A Intact grain with visible pore B Intact grain with 2 visible pores in adjacent lacunae C Grain with muri partially removed showing distorted inner surface and five pores, one pore on opposite surface visible through torn area. A from Brass 16090 B, C from Christensen &amp; Patel 1457. Views from Robinson &amp; Skvarla, PhytoKeys 2014." figureDoi="10.3897/phytokeys.60.6734.figure22" httpUri="https://binary.pensoft.net/fig/77494" pageId="41" pageNumber="90">22 C</figureCitation>
). The pollen of
<taxonomicName id="1AFA4496FF9992FB8D8A42EA11CAF4BC" authorityName="Fenzl" authorityYear="1844" class="Magnoliopsida" family="Asteraceae" genus="Polydora" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Polydora" order="Asterales" pageId="41" pageNumber="90" phylum="Tracheophyta" rank="genus">
<emphasis id="0F046CFCFB271AE7892910F496702A49" italics="true" pageId="41" pageNumber="90">Polydora</emphasis>
</taxonomicName>
proves to have a lophate condition with well-defined lophae or muro bearing 4-5 spinules on each segment. The lophae are subtended by columellae in a single series not leaving an ogee-shaped gap in the middle.
</paragraph>
<paragraph id="FD6522ED3443CCC621DE32021F780056" pageId="41" pageNumber="90">
Notable secondary metabolites: sesquiterpene lactone glaucolides/hirsutanolies (
<bibRefCitation id="B7B78B1BAFAA0489B8761017AD57D820" author="Bohlmann, F" journalOrPublisher="Plant Systematics and Evolution" pageId="50" pageNumber="99" pagination="3 - 43" publicationUrl="10.1007/978-3-7091-6928-5_2" refId="B5" refString="Bohlmann, F, Jakupovic, J, 1990. Progress in the chemistry of the Vernonieae (Compositae). Plant Systematics and Evolution 4: 3 - 43, DOI: 10.1007/978-3-7091-6928-5_2" title="Progress in the chemistry of the Vernonieae (Compositae)." url="10.1007/978-3-7091-6928-5_2" volume="4" year="1990">Bohlmann and Jakupovic 1990</bibRefCitation>
, as
<taxonomicName id="A8FC6E62B5C0E6429897657A4CB3FBFA" class="Magnoliopsida" family="Compositae" genus="Vernonia" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Vernonia poskeana" order="Asterales" pageId="41" pageNumber="90" phylum="Tracheophyta" rank="species" species="poskeana">
<emphasis id="71CBEBA689D0E461E4E6746FCBF63499" italics="true" pageId="41" pageNumber="90">Vernonia poskeana</emphasis>
</taxonomicName>
Vatke &amp; Hildebr.), elemanolides, eudesmanolides, secoglaucolides (
<bibRefCitation id="0792AB33AA80F32959935FB4F5ADE783" author="Herz, W" editor="Hind, DJN" journalOrPublisher="Royal Botanic Gardens, Kew" pageId="50" pageNumber="99" pagination="229 - 251" refId="B14" refString="Herz, W, 1996. A review of the terpenoid chemistry of the Vernonieae. In: Hind, DJN, Beentje, HJ, Eds., Compositae: Systematics. Royal Botanic Gardens, Kew: 229 - 251" title="A review of the terpenoid chemistry of the Vernonieae." volumeTitle="Compositae: Systematics." year="1996">Herz 1996</bibRefCitation>
, as
<taxonomicName id="5199CA0620ACFC28AC638AA70668D7FF" class="Magnoliopsida" family="Compositae" genus="Vernonia" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Vernonia poskeana" order="Asterales" pageId="41" pageNumber="90" phylum="Tracheophyta" rank="species" species="poskeana">
<emphasis id="684DCF68C389B4471CEF664B4930E68E" italics="true" pageId="41" pageNumber="90">Vernonia poskeana</emphasis>
</taxonomicName>
Vatke &amp; Hildebr.
</paragraph>
<caption id="1CCA781A8F4A36A3818C94B2BA4FE8E8" ID-Zenodo-Dep="974361" doi="10.3897/phytokeys.60.6734.figure22" httpUri="https://binary.pensoft.net/fig/77494" pageId="41" pageNumber="90" start="Figure 22" startId="F22">
<paragraph id="EF6E4A8D389249022B5A584C99F1B1C6" pageId="41" pageNumber="90">
<emphasis id="BC6A2E13483598BA44C954D4280F37A6" bold="true" pageId="41" pageNumber="90">Figure 22.</emphasis>
Scanning electron micrographs of
<taxonomicName id="BFE8C38BB6467F9E11A7198539E1B66E" class="Magnoliopsida" family="Asteraceae" genus="Polydora" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Polydora angustifolia" order="Asterales" pageId="41" pageNumber="90" phylum="Tracheophyta" rank="species" species="angustifolia">
<emphasis id="3BDD37A7CFB5C7F30F165B30F7307594" italics="true" pageId="41" pageNumber="90">Polydora angustifolia</emphasis>
</taxonomicName>
(Steetz) H, Rob.
<emphasis id="4ED865461FC6D1949B81A6A2C1BFACEB" bold="true" pageId="41" pageNumber="90">A</emphasis>
Intact grain with visible pore
<emphasis id="91548C26F9CB27C4E597461AF3DC01CF" bold="true" pageId="41" pageNumber="90">B</emphasis>
Intact grain with 2 visible pores in adjacent lacunae
<emphasis id="31455761EA2F5A74336820F4162B6A8B" bold="true" pageId="41" pageNumber="90">C</emphasis>
Grain with muri partially removed showing distorted inner surface and five pores, one pore on opposite surface visible through torn area.
<emphasis id="B8E41286EB4CC278E9895018F340066E" bold="true" pageId="41" pageNumber="90">A</emphasis>
from
<emphasis id="9CE1462F237F493344A78C812D5F52CD" italics="true" pageId="41" pageNumber="90">Brass 16090</emphasis>
<emphasis id="DDE28ABD525EC754C64059912B91A9BF" bold="true" pageId="41" pageNumber="90">B, C</emphasis>
from
<taxonomicName id="A55C1CAE57CC01562E301F360B01B043" genus="Christensen" lsidName="Christensen" pageId="41" pageNumber="90" rank="genus">
<emphasis id="BFD72CD39484BA8674085F974C57C149" italics="true" pageId="41" pageNumber="90">Christensen</emphasis>
</taxonomicName>
&amp;
<emphasis id="B37B98175AFE0536CF5211892B5262D9" italics="true" pageId="41" pageNumber="90">Patel 1457</emphasis>
. Views from Robinson &amp; Skvarla, PhytoKeys 2014.
</paragraph>
</caption>
<paragraph id="41992531D84B7BBA98ECB0B55D2BCAD1" pageId="41" pageNumber="90">
<taxonomicName id="E76D5D8BF639EE0E887C775DE85EE061" class="Magnoliopsida" family="Asteraceae" genus="Polydora" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Polydora angustifolia" order="Asterales" pageId="41" pageNumber="90" phylum="Tracheophyta" rank="species" species="angustifolia">
<emphasis id="4FE592F716C44DE6783367B6A06326E6" italics="true" pageId="41" pageNumber="90">Polydora angustifolia</emphasis>
</taxonomicName>
is the species with which Steetz first introduced the use of pollen structure in the taxonomy of the
<taxonomicName id="E0CA8B9DED1FA0A1337F0D8FAF22AF21" authorityName="Fenzl" authorityYear="1844" class="Magnoliopsida" family="Asteraceae" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="" order="Asterales" pageId="41" pageNumber="90" phylum="Tracheophyta" rank="family">Asteraceae</taxonomicName>
(Steetz in Peters 1864). The generic name
<taxonomicName id="97D4AE7D61E744F1AB468853F16EDA88" genus="Crystalopollen" lsidName="Crystalopollen" pageId="41" pageNumber="90" rank="genus">
<emphasis id="9E2F301EDB223785C195040291F290FB" italics="true" pageId="41" pageNumber="90">Crystalopollen</emphasis>
</taxonomicName>
was based on the lophate pattern of the pollen observed by Steetz.
</paragraph>
</subSubSection>
</treatment>
</document>