571 lines
36 KiB
XML
571 lines
36 KiB
XML
<document ID-DOI="http://dx.doi.org/10.3897/phytokeys.114.29367" ID-GBIF-Dataset="0daa2e53-4f8f-4f7b-8073-d681e08b3437" ID-PMC="PMC6323098" ID-Pensoft-Pub="1314-2003-114-115" ID-Pensoft-UUID="BC697668FFE07810FE51FF8C0C77FF84" ID-PubMed="30627044" ID-Zenodo-Dep="2533531" ModsDocAuthor="" ModsDocDate="2018" ModsDocID="1314-2003-114-115" ModsDocOrigin="PhytoKeys " ModsDocTitle="Taccakhanhhoaensis V.S. Dang & Vuong (Taccaceae), a new species from southern Vietnam" checkinTime="1553125318680" checkinUser="pensoft" docAuthor="Dang, Van Son, Truong, Ba Vuong, Nguyen, Thi Phuong Thao & Nghia Son Hoang," docDate="2018" docId="89D4B46A5C83043EEDD1CA332F2BDF39" docLanguage="en" docName="PhytoKeys 114: 115-122" docOrigin="PhytoKeys 114" docSource="http://dx.doi.org/10.3897/phytokeys.114.29367" docTitle="Tacca khanhhoaensis V. S. Dang & Vuong 2018, sp. nov." docType="treatment" docVersion="6" id="BC697668FFE07810FE51FF8C0C77FF84" lastPageNumber="115" masterDocId="BC697668FFE07810FE51FF8C0C77FF84" masterDocTitle="Tacca khanhhoaensis V. S. Dang & Vuong (Taccaceae), a new species from southern Vietnam" masterLastPageNumber="122" masterPageNumber="115" pageNumber="115" updateTime="1668139136622" updateUser="ExternalLinkService">
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<mods:mods xmlns:mods="http://www.loc.gov/mods/v3">
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<mods:titleInfo>
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<mods:title>Tacca khanhhoaensis V. S. Dang & Vuong (Taccaceae), a new species from southern Vietnam</mods:title>
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</mods:titleInfo>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Dang, Van Son</mods:namePart>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Truong, Ba Vuong</mods:namePart>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Nguyen, Thi Phuong Thao</mods:namePart>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Nghia Son Hoang,</mods:namePart>
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</mods:name>
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<mods:typeOfResource>text</mods:typeOfResource>
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<mods:relatedItem type="host">
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<mods:titleInfo>
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<mods:title>PhytoKeys</mods:title>
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</mods:titleInfo>
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<mods:part>
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<mods:date>2018</mods:date>
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<mods:detail type="volume">
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<mods:number>114</mods:number>
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</mods:detail>
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<mods:extent unit="page">
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<mods:start>115</mods:start>
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<mods:end>122</mods:end>
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</mods:extent>
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</mods:part>
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</mods:relatedItem>
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<mods:location>
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<mods:url>http://dx.doi.org/10.3897/phytokeys.114.29367</mods:url>
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</mods:location>
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<mods:classification>journal article</mods:classification>
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<mods:identifier type="DOI">http://dx.doi.org/10.3897/phytokeys.114.29367</mods:identifier>
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<mods:identifier type="Pensoft-Pub">1314-2003-114-115</mods:identifier>
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<mods:identifier type="Pensoft-UUID">BC697668FFE07810FE51FF8C0C77FF84</mods:identifier>
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<mods:identifier type="Zenodo-Dep">2533531</mods:identifier>
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</mods:mods>
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<treatment ID-GBIF-Taxon="154472471" LSID="urn:lsid:plazi:treatment:89D4B46A5C83043EEDD1CA332F2BDF39" httpUri="http://treatment.plazi.org/id/89D4B46A5C83043EEDD1CA332F2BDF39" lastPageNumber="115" pageId="0" pageNumber="115">
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<subSubSection pageId="0" pageNumber="115" type="nomenclature">
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<paragraph pageId="0" pageNumber="115">
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<taxonomicName LSID="3E7BADE1-EAB4-5BBC-AA58-809A39507E02" authority="V. S. Dang & Vuong" authorityName="V. S. Dang & Vuong" authorityYear="2018" class="Liliopsida" family="Taccaceae" genus="Tacca" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Tacca khanhhoaensis" order="Dioscoreales" pageId="0" pageNumber="115" phylum="Tracheophyta" rank="species" species="khanhhoaensis" status="sp. nov.">Tacca khanhhoaensis V.S. Dang & Vuong</taxonomicName>
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<taxonomicNameLabel pageId="0" pageNumber="115">sp. nov.</taxonomicNameLabel>
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<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Tacca khanhhoaensis V. S. Dang & Vuong. A Habit B Inflorescent much shorter leaves C Habitat." figureDoi="10.3897/phytokeys.114.29367.figure2" httpUri="https://binary.pensoft.net/fig/253671" pageId="0" pageNumber="115">Figures 2</figureCitation>
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<figureCitation captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Tacca khanhhoaensis V. S. Dang & Vuong. A Inflorescence B Fruits C Flowers, top view showing perianth lobes, stamens and stigma D Outer perianth lobes E Inner perianth lobes F Inner surface of perianth tube G Anther and connective H Longitudinal section of Anther with a pair of theca I Outer involucral bracts J Inner involucral bracts K Stigmas L Finely pubescent hairs at apex of stigma lobes M Black hairs on style N Longitudinal section of flower O Transverse section of fruit P Transverse section of ovary Q Seeds." figureDoi="10.3897/phytokeys.114.29367.figure3" httpUri="https://binary.pensoft.net/fig/253672" pageId="0" pageNumber="115">, 3</figureCitation>
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="115" type="diagnosis">
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<paragraph pageId="0" pageNumber="115">Diagnosis.</paragraph>
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<paragraph pageId="0" pageNumber="115">
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<taxonomicName authorityName="V. S. Dang & Vuong" authorityYear="2018" class="Liliopsida" family="Taccaceae" genus="Tacca" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Tacca khanhhoaensis" order="Dioscoreales" pageId="0" pageNumber="115" phylum="Tracheophyta" rank="species" species="khanhhoaensis">
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<emphasis italics="true" pageId="0" pageNumber="115">Tacca khanhhoaensis</emphasis>
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</taxonomicName>
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is similar to
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<taxonomicName class="Liliopsida" family="Taccaceae" genus="Tacca" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Tacca chantrieri" order="Dioscoreales" pageId="0" pageNumber="115" phylum="Tracheophyta" rank="species" species="chantrieri">
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<emphasis italics="true" pageId="0" pageNumber="115">Tacca chantrieri</emphasis>
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</taxonomicName>
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<normalizedToken originalValue="André">Andre</normalizedToken>
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in leaf shape and bracts, but differs from it in having shorter leaves (up to 45 cm vs. 60 cm long) and petioles (up to 22 cm vs. 43 cm long), inflorescences with fewer flowers (5 to 10 vs. 15 to 25), 2-lobed stigma vs. 3-lobed stigma and dark red buds vs. green buds. The new species is also somewhat similar to
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<taxonomicName lsidName="T. ampliplacenta" pageId="0" pageNumber="115" rank="species" species="ampliplacenta">
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<emphasis italics="true" pageId="0" pageNumber="115">T. ampliplacenta</emphasis>
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</taxonomicName>
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L. Zhang & Q.-J. Li of China, but differs from it by having smaller leaves (30-45
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<normalizedToken originalValue="×">x</normalizedToken>
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10-14 cm vs. 55 cm long) and fruits (3-4
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<normalizedToken originalValue="×">x</normalizedToken>
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1.5-2 cm vs. 4-6
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<normalizedToken originalValue="×">x</normalizedToken>
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2-2.5 cm) and very short petioles (22 cm vs. 50 cm long), inflorescent much shorter leaves (vs. longer), number of flowers (5 to 10 vs. 25) and dark red buds vs. black-purple.
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</paragraph>
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<caption ID-Zenodo-Dep="2533699" doi="10.3897/phytokeys.114.29367.figure2" httpUri="https://binary.pensoft.net/fig/253671" pageId="0" pageNumber="115" start="Figure 2" startId="F2">
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<paragraph pageId="0" pageNumber="115">
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<emphasis bold="true" pageId="0" pageNumber="115">Figure 2.</emphasis>
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<taxonomicName authorityName="V. S. Dang & Vuong" authorityYear="2018" class="Liliopsida" family="Taccaceae" genus="Tacca" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Tacca khanhhoaensis" order="Dioscoreales" pageId="0" pageNumber="115" phylum="Tracheophyta" rank="species" species="khanhhoaensis">
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<emphasis italics="true" pageId="0" pageNumber="115">Tacca khanhhoaensis</emphasis>
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</taxonomicName>
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V.S. Dang & Vuong.
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<emphasis bold="true" pageId="0" pageNumber="115">A</emphasis>
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Habit
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<emphasis bold="true" pageId="0" pageNumber="115">B</emphasis>
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Inflorescent much shorter leaves
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<emphasis bold="true" pageId="0" pageNumber="115">C</emphasis>
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Habitat.
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</paragraph>
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</caption>
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<caption ID-Zenodo-Dep="2533701" doi="10.3897/phytokeys.114.29367.figure3" httpUri="https://binary.pensoft.net/fig/253672" pageId="0" pageNumber="115" start="Figure 3" startId="F3">
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<paragraph pageId="0" pageNumber="115">
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<emphasis bold="true" pageId="0" pageNumber="115">Figure 3.</emphasis>
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<taxonomicName authorityName="V. S. Dang & Vuong" authorityYear="2018" class="Liliopsida" family="Taccaceae" genus="Tacca" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Tacca khanhhoaensis" order="Dioscoreales" pageId="0" pageNumber="115" phylum="Tracheophyta" rank="species" species="khanhhoaensis">
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<emphasis italics="true" pageId="0" pageNumber="115">Tacca khanhhoaensis</emphasis>
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</taxonomicName>
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V.S. Dang & Vuong.
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<emphasis bold="true" pageId="0" pageNumber="115">A</emphasis>
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Inflorescence
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<emphasis bold="true" pageId="0" pageNumber="115">B</emphasis>
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Fruits
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<emphasis bold="true" pageId="0" pageNumber="115">C</emphasis>
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Flowers, top view showing perianth lobes, stamens and stigma
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<emphasis bold="true" pageId="0" pageNumber="115">D</emphasis>
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Outer perianth lobes
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<emphasis bold="true" pageId="0" pageNumber="115">E</emphasis>
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Inner perianth lobes
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<emphasis bold="true" pageId="0" pageNumber="115">F</emphasis>
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Inner surface of perianth tube
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<emphasis bold="true" pageId="0" pageNumber="115">G</emphasis>
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Anther and connective
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<emphasis bold="true" pageId="0" pageNumber="115">H</emphasis>
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Longitudinal section of Anther with a pair of theca
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<emphasis bold="true" pageId="0" pageNumber="115">I</emphasis>
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Outer involucral bracts
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<emphasis bold="true" pageId="0" pageNumber="115">J</emphasis>
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Inner involucral bracts
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<emphasis bold="true" pageId="0" pageNumber="115">K</emphasis>
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Stigmas
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<emphasis bold="true" pageId="0" pageNumber="115">L</emphasis>
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Finely pubescent hairs at apex of stigma lobes
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<emphasis bold="true" pageId="0" pageNumber="115">M</emphasis>
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Black hairs on style
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<emphasis bold="true" pageId="0" pageNumber="115">N</emphasis>
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Longitudinal section of flower
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<emphasis bold="true" pageId="0" pageNumber="115">O</emphasis>
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Transverse section of fruit
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<emphasis bold="true" pageId="0" pageNumber="115">P</emphasis>
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Transverse section of ovary
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<emphasis bold="true" pageId="0" pageNumber="115">Q</emphasis>
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Seeds.
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</paragraph>
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</caption>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="115" type="materials_examined">
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<paragraph pageId="0" pageNumber="115">Type.</paragraph>
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<paragraph pageId="0" pageNumber="115">
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VIETNAM. Khanh Hoa Province, Hon Ba Nature Reserve, terrestrial under the shade of the canopy on dry soil or close to the stream, alt. 353 m,
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<geoCoordinate degrees="12" direction="north" minutes="06.36" orientation="latitude" precision="9" value="12.106">12°06.36'N</geoCoordinate>
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,
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<geoCoordinate degrees="108" direction="east" minutes="59.46" orientation="longitude" precision="9" value="108.991">108°59.46'E</geoCoordinate>
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, 16 April 2017,
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<emphasis italics="true" pageId="0" pageNumber="115">Truong Ba Vuong, Mang Van Lam, Dang Van Son, BV256</emphasis>
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(holotype VNM!; isotype VNM!, the herbarium of Hon Ba Nature Reserve!).
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="115" type="description">
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<paragraph pageId="0" pageNumber="115">Description.</paragraph>
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<paragraph pageId="0" pageNumber="115">
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Perennial herbs.
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<emphasis italics="true" pageId="0" pageNumber="115">Rhizome</emphasis>
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cylindric, fleshy, with many stout roots.
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<emphasis italics="true" pageId="0" pageNumber="115">Leaves</emphasis>
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radical, 5 to 8 leaves; laminae oblong to obovate or oblong-elliptic, 30-45
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<normalizedToken originalValue="×">x</normalizedToken>
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10-14 cm, apex acute, base attenuate, margin slightly undulate; main veins pinnate; petiole erect, 14-22
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<normalizedToken originalValue="×">x</normalizedToken>
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0.5-1 cm, green to purplish-green, sheathing at base.
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<emphasis italics="true" pageId="0" pageNumber="115">Inflorescence</emphasis>
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umbel, 5-10-flowered; scape erect, 20-38 cm long, nodding, pale green-purple at base, more dark purple above.
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<emphasis italics="true" pageId="0" pageNumber="115">Involucral bracts</emphasis>
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4, decussate, sessile; two outer bracts vertical arrangement, unequally, ovate-lanceolate, 4.5-5.5
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<normalizedToken originalValue="×">x</normalizedToken>
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2-2.5 cm, black-purple, apex acuminate, base obtuse; two inner bracts horizontal arrangement, broadly ovate, 6-6.5
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<normalizedToken originalValue="×">x</normalizedToken>
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4-5 cm, deep purple red with dark purple at margin, apex acuminate, base rounded, margin undulate, slightly erose at base, possessing numerous veins.
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<emphasis italics="true" pageId="0" pageNumber="115">Filiform bracts</emphasis>
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8-15, up to 32 cm long, dark purple.
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<emphasis italics="true" pageId="0" pageNumber="115">Flowers</emphasis>
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narrowly triangular, buds dark red flowers greenish-purple when young, when older black-purple; perianth tube 5-6 mm long, white and purple inside.
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<emphasis italics="true" pageId="0" pageNumber="115">Perianth lobes</emphasis>
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6, three outer lobes narrowly ovate or triangular, 10
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<normalizedToken originalValue="×">x</normalizedToken>
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3-5 mm, apex acute; three inner lobes broadly ovate to ovate-triangular, 8-10
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<normalizedToken originalValue="×">x</normalizedToken>
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4-6 mm, apex acuminate, recurved when flower fully opening.
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<emphasis italics="true" pageId="0" pageNumber="115">Stamens</emphasis>
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6, attached to the base of perianth tube, beset with stigma lobes, dark purple to dark red, filament short, anther and connective forming a hood-like structure, individual stamens with 2 thecae, each theca 2 mm long.
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<emphasis italics="true" pageId="0" pageNumber="115">Stigma</emphasis>
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3, ca. 5 mm in diameter, fleshy, apex 2-lobed with finely white pubescence, lobes slightly curved down; style 8-9 mm in diameter, sub-orbicular to round-triangular in outline, surface with minute black hairs.
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<emphasis italics="true" pageId="0" pageNumber="115">Ovaries</emphasis>
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inferior, obtriangular, 5-6
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<normalizedToken originalValue="×">x</normalizedToken>
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8-9 mm, dark red.
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<emphasis italics="true" pageId="0" pageNumber="115">Fruit</emphasis>
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berry, 3-4
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<normalizedToken originalValue="×">x</normalizedToken>
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1.5-2 cm, black to dark purple, triangular in transverse section; stalk 1.5-2 cm long.
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<emphasis italics="true" pageId="0" pageNumber="115">Seeds</emphasis>
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reniform to nearly half orbicular, 1.5-5
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<normalizedToken originalValue="×">x</normalizedToken>
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1-1.5 mm, slightly brown, 4-7-ribbed.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="115" type="other specimen examined">
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<paragraph pageId="0" pageNumber="115">Other specimen examined.</paragraph>
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<paragraph pageId="0" pageNumber="115">
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VIETNAM. Khanh Hoa Province, Hon Ba Nature Reserve, growing under forest canopy, uncommonly along the riparian forest, alt. 400 m,
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<geoCoordinate degrees="12" direction="north" minutes="06.37" orientation="latitude" precision="9" value="12.106167">12°06.37'N</geoCoordinate>
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,
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<geoCoordinate degrees="108" direction="east" minutes="59.44" orientation="longitude" precision="9" value="108.99067">108°59.44'E</geoCoordinate>
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, 16 November 2017,
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<emphasis italics="true" pageId="0" pageNumber="115">Truong Ba Vuong, Mang Van Lam, BV256a</emphasis>
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(VNM!, the herbarium of Hon Ba Nature Reserve!).
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="115" type="phenology">
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<paragraph pageId="0" pageNumber="115">Phenology.</paragraph>
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<paragraph pageId="0" pageNumber="115">Flowers were observed in April and May. Immature and mature fruits were observed in May and June.</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="115" type="distribution">
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<paragraph pageId="0" pageNumber="115">Distribution and habitat.</paragraph>
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<paragraph pageId="0" pageNumber="115">
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<taxonomicName authorityName="V. S. Dang & Vuong" authorityYear="2018" class="Liliopsida" family="Taccaceae" genus="Tacca" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Tacca khanhhoaensis" order="Dioscoreales" pageId="0" pageNumber="115" phylum="Tracheophyta" rank="species" species="khanhhoaensis">
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<emphasis italics="true" pageId="0" pageNumber="115">Tacca khanhhoaensis</emphasis>
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</taxonomicName>
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is only known from Hon Ba Nature Reserve, Khanh Hoa Province, southern Vietnam. It was growing under the shade of the canopy on dry soil or close to the stream, where
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<taxonomicName authorityName="Tagane & V. S. Dang" authorityYear="2015" class="Magnoliopsida" family="Phyllanthaceae" genus="Aporosa" higherTaxonomySource="GBIF,CoL" kingdom="Plantae" lsidName="Aporosa tetragona" order="Malpighiales" pageId="0" pageNumber="115" phylum="Tracheophyta" rank="species" species="tetragona">
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<emphasis italics="true" pageId="0" pageNumber="115">Aporosa tetragona</emphasis>
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</taxonomicName>
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Tagane & V.S. Dang,
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<taxonomicName class="Monocotyledoneae" family="Poaceae" genus="Bambusa" higherTaxonomySource="GBIF" kingdom="Plantae" lsidName="Bambusa" order="Graminales" pageId="0" pageNumber="115" phylum="Angiospermae" rank="genus">
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<emphasis italics="true" pageId="0" pageNumber="115">Bambusa</emphasis>
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</taxonomicName>
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sp.,
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<taxonomicName class="Dicotyledoneae" family="Lecythidaceae" genus="Barringtonia" higherTaxonomySource="GBIF" kingdom="Plantae" lsidName="Barringtonia macrostachya" order="Myrtiflorae" pageId="0" pageNumber="115" phylum="Angiospermae" rank="species" species="macrostachya">
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<emphasis italics="true" pageId="0" pageNumber="115">Barringtonia macrostachya</emphasis>
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</taxonomicName>
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(Jack) Kurz,
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<taxonomicName class="Monocotyledoneae" family="Arecaceae" genus="Calamus" higherTaxonomySource="GBIF" kingdom="Plantae" lsidName="Calamus" order="Principes" pageId="0" pageNumber="115" phylum="Angiospermae" rank="genus">
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<emphasis italics="true" pageId="0" pageNumber="115">Calamus</emphasis>
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</taxonomicName>
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sp.,
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<taxonomicName class="Magnoliopsida" family="Euphorbiaceae" genus="Croton" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Croton" order="Malpighiales" pageId="0" pageNumber="115" phylum="Tracheophyta" rank="genus">
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<emphasis italics="true" pageId="0" pageNumber="115">Croton</emphasis>
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</taxonomicName>
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sp.,
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<taxonomicName authorityName="Loureiro" authorityYear="1790" class="Dicotyledoneae" family="Annonaceae" genus="Desmos" higherTaxonomySource="GBIF" kingdom="Plantae" lsidName="Desmos" order="Magnoliales" pageId="0" pageNumber="115" phylum="Angiospermae" rank="genus">
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<emphasis italics="true" pageId="0" pageNumber="115">Desmos</emphasis>
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</taxonomicName>
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sp.,
|
||
<taxonomicName authorityName="Tagane & V.S.Dang" authorityYear="2015" class="Dicotyledoneae" family="Annonaceae" genus="Goniothalamus" higherTaxonomySource="GBIF" kingdom="Plantae" lsidName="Goniothalamus flagellistylus" order="Magnoliales" pageId="0" pageNumber="115" phylum="Angiospermae" rank="species" species="flagellistylus">
|
||
<emphasis italics="true" pageId="0" pageNumber="115">Goniothalamus flagellistylus</emphasis>
|
||
</taxonomicName>
|
||
Tagane & V.S. Dang,
|
||
<taxonomicName class="Dicotyledoneae" family="Rubiaceae" genus="Ixora" higherTaxonomySource="GBIF" kingdom="Plantae" lsidName="Ixora" order="Gentianales" pageId="0" pageNumber="115" phylum="Angiospermae" rank="genus">
|
||
<emphasis italics="true" pageId="0" pageNumber="115">Ixora</emphasis>
|
||
</taxonomicName>
|
||
sp.,
|
||
<taxonomicName class="Dicotyledoneae" family="Tiliaceae" genus="Microcos" higherTaxonomySource="GBIF" kingdom="Plantae" lsidName="Microcos tomentosa" order="Malvales" pageId="0" pageNumber="115" phylum="Angiospermae" rank="species" species="tomentosa">
|
||
<emphasis italics="true" pageId="0" pageNumber="115">Microcos tomentosa</emphasis>
|
||
</taxonomicName>
|
||
Sm.,
|
||
<taxonomicName class="Dicotyledoneae" family="Euphorbiaceae" genus="Phyllanthus" higherTaxonomySource="GBIF" kingdom="Plantae" lsidName="Phyllanthus reticulatus" order="Geraniales" pageId="0" pageNumber="115" phylum="Angiospermae" rank="species" species="reticulatus">
|
||
<emphasis italics="true" pageId="0" pageNumber="115">Phyllanthus reticulatus</emphasis>
|
||
</taxonomicName>
|
||
Poir. and
|
||
<taxonomicName authorityName="Corner" authorityYear="1962" baseAuthorityName="Bur." class="Dicotyledoneae" family="Moraceae" genus="Streblus" higherTaxonomySource="GBIF" kingdom="Plantae" lsidName="Streblus indicus" order="Urticales" pageId="0" pageNumber="115" phylum="Angiospermae" rank="species" species="indicus">
|
||
<emphasis italics="true" pageId="0" pageNumber="115">Streblus indicus</emphasis>
|
||
</taxonomicName>
|
||
(Bureau) Corner are dominant.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="0" pageNumber="115" type="etymology">
|
||
<paragraph pageId="0" pageNumber="115">Etymology.</paragraph>
|
||
<paragraph pageId="0" pageNumber="115">The name of this species is derived from the name of the province Khanh Hoa, where the species was discovered.</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="0" pageNumber="115" type="conservation status">
|
||
<paragraph pageId="0" pageNumber="115">Conservation status.</paragraph>
|
||
<paragraph pageId="0" pageNumber="115">
|
||
<taxonomicName authorityName="V. S. Dang & Vuong" authorityYear="2018" class="Liliopsida" family="Taccaceae" genus="Tacca" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Tacca khanhhoaensis" order="Dioscoreales" pageId="0" pageNumber="115" phylum="Tracheophyta" rank="species" species="khanhhoaensis">
|
||
<emphasis italics="true" pageId="0" pageNumber="115">Tacca khanhhoaensis</emphasis>
|
||
</taxonomicName>
|
||
was collected from a small population under forest canopy in Hon Ba Nature Reserve at 300-400 m altitude. The forest habitat where we found this new species was frequently logged and disturbed. Therefore,
|
||
<taxonomicName authorityName="V. S. Dang & Vuong" authorityYear="2018" class="Liliopsida" family="Taccaceae" genus="Tacca" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Tacca khanhhoaensis" order="Dioscoreales" pageId="0" pageNumber="115" phylum="Tracheophyta" rank="species" species="khanhhoaensis">
|
||
<emphasis italics="true" pageId="0" pageNumber="115">Tacca khanhhoaensis</emphasis>
|
||
</taxonomicName>
|
||
is assessed as Critically Endangered (CR) based on the IUCN Red List Categories (
|
||
<bibRefCitation author="IUCN" journalOrPublisher="Blumea" pageId="0" pageNumber="115" refId="B5" refString="IUCN, 2012. IUCN Red List Categories and Criteria: Version 3.1 (2nd edn). Gland and Cambridge." title="IUCN Red List Categories and Criteria: Version 3.1 (2 nd edn). Gland and Cambridge." year="2012">IUCN 2012</bibRefCitation>
|
||
), although some individuals might be found by more thorough surveys.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="0" pageNumber="115" type="notes">
|
||
<paragraph pageId="0" pageNumber="115">Note.</paragraph>
|
||
<paragraph pageId="0" pageNumber="115">
|
||
<taxonomicName authorityName="V. S. Dang & Vuong" authorityYear="2018" class="Liliopsida" family="Taccaceae" genus="Tacca" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Tacca khanhhoaensis" order="Dioscoreales" pageId="0" pageNumber="115" phylum="Tracheophyta" rank="species" species="khanhhoaensis">
|
||
<emphasis italics="true" pageId="0" pageNumber="115">Tacca khanhhoaensis</emphasis>
|
||
</taxonomicName>
|
||
is morphologically similar to
|
||
<taxonomicName lsidName="T. chantrieri" pageId="0" pageNumber="115" rank="species" species="chantrieri">
|
||
<emphasis italics="true" pageId="0" pageNumber="115">T. chantrieri</emphasis>
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName lsidName="T. ampliplacenta" pageId="0" pageNumber="115" rank="species" species="ampliplacenta">
|
||
<emphasis italics="true" pageId="0" pageNumber="115">T. ampliplacenta</emphasis>
|
||
</taxonomicName>
|
||
. The comparisons of morphological characters amongst these three species are summarised in Table
|
||
<tableCitation captionStart="Table 1" captionStartId="T1" captionText="Table 1. Morphological comparison of Tacca khanhhoaensis with its closest congeners (modified from Drenth 1972; Phengklai 1993; Ding and Larsen 2000; Pham 2000; Zhang et al. 2008; Baruah et al. 2015)." httpUri="http://table.plazi.org/id/951552E370A7CEEDDEDCB0632820B8B8" pageId="0" pageNumber="115" tableUuid="951552E370A7CEEDDEDCB0632820B8B8">1</tableCitation>
|
||
.
|
||
</paragraph>
|
||
<caption ID-Table-UUID="951552E370A7CEEDDEDCB0632820B8B8" httpUri="http://table.plazi.org/id/951552E370A7CEEDDEDCB0632820B8B8" pageId="0" pageNumber="115" start="Table 1" startId="T1">
|
||
<paragraph pageId="0" pageNumber="115">
|
||
<emphasis bold="true" pageId="0" pageNumber="115">Table 1.</emphasis>
|
||
Morphological comparison of
|
||
<taxonomicName authorityName="V. S. Dang & Vuong" authorityYear="2018" class="Liliopsida" family="Taccaceae" genus="Tacca" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Tacca khanhhoaensis" order="Dioscoreales" pageId="0" pageNumber="115" phylum="Tracheophyta" rank="species" species="khanhhoaensis">
|
||
<emphasis italics="true" pageId="0" pageNumber="115">Tacca khanhhoaensis</emphasis>
|
||
</taxonomicName>
|
||
with its closest congeners (modified from
|
||
<bibRefCitation author="Drenth, E" journalOrPublisher="Blumea" pageId="0" pageNumber="115" pagination="367 - 406" refId="B3" refString="Drenth, E, 1972. A revision of the family Taccaceae. Blumea 20: 367 - 406" title="A revision of the family Taccaceae." volume="20" year="1972">Drenth 1972</bibRefCitation>
|
||
;
|
||
<bibRefCitation author="Phengklai, C" editor="Smitinand, T" journalOrPublisher="6, Part 1). The Forest Herbarium, Royal Forest Department, Bangkok" pageId="0" pageNumber="115" pagination="1 - 9" refId="B7" refString="Phengklai, C, 1993. Taccaceae. In: Smitinand, T, Larsen, K, Eds., Flora of Thailand (Vol. 6, Part 1). The Forest Herbarium, Royal Forest Department, Bangkok: 1 - 9" title="Taccaceae." volumeTitle="Flora of Thailand (Vol." year="1993">Phengklai 1993</bibRefCitation>
|
||
;
|
||
<bibRefCitation author="Ding, Z" editor="Wu, ZY" journalOrPublisher="24). Science Press, Beijing, and Missouri Botanical Garden Press, St. Louis" pageId="0" pageNumber="115" pagination="274 - 276" refId="B2" refString="Ding, Z, Larsen, K, 2000. Taccaceae. In: Wu, ZY, Raven, PH, Eds., Flora of China (Vol. 24). Science Press, Beijing, and Missouri Botanical Garden Press, St. Louis: 274 - 276" title="Taccaceae." volumeTitle="Flora of China (Vol." year="2000">Ding and Larsen 2000</bibRefCitation>
|
||
;
|
||
<bibRefCitation author="Pham, HH" journalOrPublisher="Youth Publication, Ho Chi Minh City" pageId="0" pageNumber="115" refId="B6" refString="Pham, HH, 2000. Taccaceae - An Illustrated Flora of Vietnam (Vol. 3). Youth Publication, Ho Chi Minh City" title="Taccaceae - An Illustrated Flora of Vietnam (Vol. 3)." year="2000">Pham 2000</bibRefCitation>
|
||
; Zhang et al. 2008;
|
||
<bibRefCitation author="Baruah, S" journalOrPublisher="NeBio" pageId="0" pageNumber="115" pagination="18 - 20" refId="B1" refString="Baruah, S, Sarma, J, Borthakur, SK, 2015. Tacca chantrieri Andre (Taccaceae): A beautiful ornamental flora recorded as a new for India. NeBio 6 (1): 18 - 20" title="Tacca chantrieri Andre (Taccaceae): A beautiful ornamental flora recorded as a new for India." volume="6" year="2015">Baruah et al. 2015</bibRefCitation>
|
||
).
|
||
</paragraph>
|
||
</caption>
|
||
<paragraph pageId="0" pageNumber="115">
|
||
<table pageId="0" pageNumber="115">
|
||
<tr pageId="0" pageNumber="115">
|
||
<th colspan="1" pageId="0" pageNumber="115" rowspan="1">Characters</th>
|
||
<th colspan="1" pageId="0" pageNumber="115" rowspan="1">
|
||
<taxonomicName lsidName="T. khanhhoaensis" pageId="0" pageNumber="115" rank="species" species="khanhhoaensis">
|
||
<emphasis italics="true" pageId="0" pageNumber="115">T. khanhhoaensis</emphasis>
|
||
</taxonomicName>
|
||
</th>
|
||
<th colspan="1" pageId="0" pageNumber="115" rowspan="1">
|
||
<taxonomicName lsidName="T. chantrieri" pageId="0" pageNumber="115" rank="species" species="chantrieri">
|
||
<emphasis italics="true" pageId="0" pageNumber="115">T. chantrieri</emphasis>
|
||
</taxonomicName>
|
||
</th>
|
||
<th colspan="1" pageId="0" pageNumber="115" rowspan="1">
|
||
<taxonomicName lsidName="T. ampliplacenta" pageId="0" pageNumber="115" rank="species" species="ampliplacenta">
|
||
<emphasis italics="true" pageId="0" pageNumber="115">T. ampliplacenta</emphasis>
|
||
</taxonomicName>
|
||
</th>
|
||
</tr>
|
||
<tr pageId="0" pageNumber="115">
|
||
<td colspan="4" pageId="0" pageNumber="115" rowspan="1">Leaves</td>
|
||
</tr>
|
||
<tr pageId="0" pageNumber="115">
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">- number</td>
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">5 to 8</td>
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">3 to 12</td>
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">5 to 10</td>
|
||
</tr>
|
||
<tr pageId="0" pageNumber="115">
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">- shape of leaf lamina</td>
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">oblong to obovate or oblong-elliptic</td>
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">oblong to oblong-elliptic</td>
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">oblong-obovate</td>
|
||
</tr>
|
||
<tr pageId="0" pageNumber="115">
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">- length of leaf lamina</td>
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">30-45 cm</td>
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">20-50(-60) cm</td>
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">55 cm</td>
|
||
</tr>
|
||
<tr pageId="0" pageNumber="115">
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">- length of petiole</td>
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">
|
||
14-22
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
0.5-1 cm
|
||
</td>
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">
|
||
11-43
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
0.2-0.5 cm
|
||
</td>
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">
|
||
30-50
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
0.7-1.2 cm
|
||
</td>
|
||
</tr>
|
||
<tr pageId="0" pageNumber="115">
|
||
<td colspan="4" pageId="0" pageNumber="115" rowspan="1">Inflorescence</td>
|
||
</tr>
|
||
<tr pageId="0" pageNumber="115">
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">- number of flowers</td>
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">5 to 10</td>
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">15 to 25</td>
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">25</td>
|
||
</tr>
|
||
<tr pageId="0" pageNumber="115">
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">- length of scape</td>
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">20-38 cm</td>
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">6-63 cm</td>
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">40-70 cm</td>
|
||
</tr>
|
||
<tr pageId="0" pageNumber="115">
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="2">- outer involucral bracts</td>
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">ovate-lanceolate,</td>
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">ovate-lanceolate,</td>
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">lanceolate to oblong-ovate,</td>
|
||
</tr>
|
||
<tr pageId="0" pageNumber="115">
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">
|
||
4.5-5.5
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
2-2.5 cm
|
||
</td>
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">
|
||
2-9
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
0.8-4 cm
|
||
</td>
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">
|
||
6-8
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
3-4 cm
|
||
</td>
|
||
</tr>
|
||
<tr pageId="0" pageNumber="115">
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="2">- inner involucral bracts</td>
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">broadly ovate,</td>
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">broadly ovate,</td>
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">broad-triangular,</td>
|
||
</tr>
|
||
<tr pageId="0" pageNumber="115">
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">
|
||
6-6.5
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
4-5 cm
|
||
</td>
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">
|
||
2.5-10
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
1.5-9 cm
|
||
</td>
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">
|
||
10-16
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
8-10 cm
|
||
</td>
|
||
</tr>
|
||
<tr pageId="0" pageNumber="115">
|
||
<td colspan="4" pageId="0" pageNumber="115" rowspan="1">Flowers</td>
|
||
</tr>
|
||
<tr pageId="0" pageNumber="115">
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">- colour of buds</td>
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">dark red</td>
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">green</td>
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">black-purple</td>
|
||
</tr>
|
||
<tr pageId="0" pageNumber="115">
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="2">- outer perianth lobes</td>
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">narrowly ovate or triangular,</td>
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">oblong-ovate or narrowly triangular,</td>
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">oblong,</td>
|
||
</tr>
|
||
<tr pageId="0" pageNumber="115">
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">
|
||
10
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
3-5 mm
|
||
</td>
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">
|
||
5-12
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
3-8 mm
|
||
</td>
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">
|
||
12
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
8 mm
|
||
</td>
|
||
</tr>
|
||
<tr pageId="0" pageNumber="115">
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="2">- inner perianth lobes</td>
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">broadly ovate,</td>
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">broadly ovate or triangular,</td>
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">broad-ovate,</td>
|
||
</tr>
|
||
<tr pageId="0" pageNumber="115">
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">
|
||
8-10
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
4-6 mm
|
||
</td>
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">
|
||
4-11
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
4-12 mm
|
||
</td>
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">
|
||
12
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
10 mm
|
||
</td>
|
||
</tr>
|
||
<tr pageId="0" pageNumber="115">
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">Apex of stigma lobes</td>
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">2-lobed</td>
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">3-lobed</td>
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">2-lobed</td>
|
||
</tr>
|
||
<tr pageId="0" pageNumber="115">
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">Ovaries</td>
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">
|
||
5-6
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
8-9 mm
|
||
</td>
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">
|
||
2-7
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
3-5 mm
|
||
</td>
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">
|
||
5-8
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
10 mm
|
||
</td>
|
||
</tr>
|
||
<tr pageId="0" pageNumber="115">
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">Fruits</td>
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">
|
||
3-4
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
1.5-2 cm
|
||
</td>
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">
|
||
2-4
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
1-2 cm
|
||
</td>
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">
|
||
4-6
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
2-2.5 cm
|
||
</td>
|
||
</tr>
|
||
<tr pageId="0" pageNumber="115">
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">Seeds</td>
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">
|
||
1.5-5
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
1-1.5 mm, slightly brown, 4-7-ribbed
|
||
</td>
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">
|
||
2-4
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
1-2 mm, brown, 9-14-ribbed
|
||
</td>
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">
|
||
2-3
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
1.5-2 mm, brownish-red, many ribbed
|
||
</td>
|
||
</tr>
|
||
</table>
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |