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310 lines
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<document ID-DOI="http://dx.doi.org/10.3897/phytokeys.130.33956" ID-GBIF-Dataset="38cca0c9-e2d0-40c8-894f-c88e5a1357a4" ID-PMC="PMC6728384" ID-Pensoft-Pub="1314-2003-130-25" ID-Pensoft-UUID="141A60C5C9A35AC4B16BFE35CC5DB9D2" ID-PubMed="31534391" ID-Zenodo-Dep="3387828" ModsDocID="1314-2003-130-25" checkinTime="1567102893556" checkinUser="pensoft" docAuthor="Gao, Lian-Ming, Tan, Shao-Lin, Zhang, Gui-Liang & Thomas, Philip" docDate="2019" docId="BF626FA0F2735B619274F4CFD6ADEA0D" docLanguage="en" docName="PhytoKeys 130: 25-32" docOrigin="PhytoKeys 130" docSource="http://dx.doi.org/10.3897/phytokeys.130.33956" docTitle="Amentotaxus hekouensis L. M. Gao 2019, sp. nov." docType="treatment" docVersion="6" id="141A60C5C9A35AC4B16BFE35CC5DB9D2" lastPageNumber="28" masterDocId="141A60C5C9A35AC4B16BFE35CC5DB9D2" masterDocTitle="A new species of Amentotaxus (Taxaceae) from China, Vietnam, and Laos" masterLastPageNumber="32" masterPageNumber="25" pageNumber="26" updateTime="1668139460440" 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>A new species of Amentotaxus (Taxaceae) from China, Vietnam, and Laos</mods:title>
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</mods:titleInfo>
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<mods:name type="personal">
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Gao, Lian-Ming</mods:namePart>
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</mods:name>
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<mods:name type="personal">
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Tan, Shao-Lin</mods:namePart>
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</mods:name>
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<mods:name type="personal">
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Zhang, Gui-Liang</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>Thomas, Philip</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>2019</mods:date>
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<mods:detail type="volume">
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<mods:number>130</mods:number>
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</mods:detail>
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<mods:extent unit="page">
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<mods:start>25</mods:start>
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<mods:end>32</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.130.33956</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.130.33956</mods:identifier>
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<mods:identifier type="Pensoft-Pub">1314-2003-130-25</mods:identifier>
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<mods:identifier type="Pensoft-UUID">141A60C5C9A35AC4B16BFE35CC5DB9D2</mods:identifier>
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<mods:identifier type="Zenodo-Dep">3387828</mods:identifier>
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</mods:mods>
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<treatment ID-GBIF-Taxon="159319511" LSID="urn:lsid:plazi:treatment:BF626FA0F2735B619274F4CFD6ADEA0D" httpUri="http://treatment.plazi.org/id/BF626FA0F2735B619274F4CFD6ADEA0D" lastPageId="3" lastPageNumber="28" pageId="1" pageNumber="26">
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<subSubSection pageId="1" pageNumber="26" type="nomenclature">
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<paragraph pageId="1" pageNumber="26">
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<taxonomicName LSID="BF626FA0-F273-5B61-9274-F4CFD6ADEA0D" authority="L. M. Gao" authorityName="L. M. Gao" authorityYear="2019" class="Pinopsida" family="Taxaceae" genus="Amentotaxus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Amentotaxus hekouensis" order="Pinales" pageId="1" pageNumber="26" phylum="Tracheophyta" rank="species" species="hekouensis" status="sp. nov.">Amentotaxus hekouensis L.M. Gao</taxonomicName>
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<taxonomicNameLabel pageId="1" pageNumber="26">sp. nov.</taxonomicNameLabel>
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<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Amentotaxus hekouensis L. M. Gao (from the holotype, drawn by Ling Wang). A Branchlets with male cone B pollen sacs." figureDoi="10.3897/phytokeys.130.33956.figure2" httpUri="https://binary.pensoft.net/fig/327584" pageId="1" pageNumber="26">Figs 2</figureCitation>
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<figureCitation captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Amentotaxus hekouensis L. M. Gao. A Habitat B habit C branchlet with adaxial leaves D branchlet with abaxial leaves E young shoot F branchlet and male cone racemes with microsporophylls G male cone racemes H microsporophylls and pollen sacs." figureDoi="10.3897/phytokeys.130.33956.figure3" httpUri="https://binary.pensoft.net/fig/327585" pageId="1" pageNumber="26">, 3</figureCitation>
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,
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<figureCitation captionStart="Table 1" captionStartId="T1" captionText="Table 1. Morphological character comparison amongst the three regional Amentotaxus species." pageId="1" pageNumber="26">Table 1</figureCitation>
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</paragraph>
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</subSubSection>
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<subSubSection pageId="1" pageNumber="26" type="diagnosis">
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<paragraph pageId="1" pageNumber="26">Diagnosis.</paragraph>
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<paragraph pageId="1" pageNumber="26">
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<taxonomicName authorityName="L. M. Gao" authorityYear="2019" class="Pinopsida" family="Taxaceae" genus="Amentotaxus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Amentotaxus hekouensis" order="Pinales" pageId="1" pageNumber="26" phylum="Tracheophyta" rank="species" species="hekouensis">
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<emphasis italics="true" pageId="1" pageNumber="26">Amentotaxus hekouensis</emphasis>
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</taxonomicName>
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L.M. Gao resembles
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<taxonomicName class="Pinopsida" family="Taxaceae" higherTaxonomySource="GBIF" kingdom="Plantae" lsidName="A. argotaenia" order="Pinales" pageId="1" pageNumber="26" phylum="Pinophyta" rank="species" species="argotaenia">
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<emphasis italics="true" pageId="1" pageNumber="26">A. argotaenia</emphasis>
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</taxonomicName>
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(Hance) Pilg., but differs in its larger leaf size (8-12.5 cm
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<normalizedToken originalValue="×">x</normalizedToken>
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0.9-1.4 cm), long acuminate leaf apex, leaf margin flat with slightly wavy, stomatal bands white or greenish-white with 25-30 rows, stomatal bands equal or slight narrower than marginal bands; pollen-cone racemes borne 1-2, cones in 12-16 pairs, microsporophylls 6-8, each with 4-6 pollen sacs.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="2" pageNumber="27" type="materials_examined">
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<paragraph pageId="2" pageNumber="27">
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<pageBreakToken pageId="2" pageNumber="27" start="start">Type</pageBreakToken>
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.
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</paragraph>
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<paragraph pageId="2" pageNumber="27">
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CHINA. Yunnan: Honghe, Hekou County, Nanxi Town, Longyinchong village,
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<geoCoordinate degrees="22" direction="north" minutes="41" orientation="latitude" precision="1" seconds="8.9" value="22.685804">22°41'8.9"N</geoCoordinate>
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,
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<geoCoordinate degrees="104" direction="east" minutes="01" orientation="longitude" precision="1" seconds="11.5" value="104.01987">104°01'11.5"E</geoCoordinate>
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, 926 m alt., 16 April 2016 (with male cone),
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<emphasis italics="true" pageId="2" pageNumber="27">G. L. Zhang, GLM-164271</emphasis>
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(holotype: KUN!; isotypes: KUN!)
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</paragraph>
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</subSubSection>
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<subSubSection pageId="2" pageNumber="27" type="description">
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<paragraph pageId="2" pageNumber="27">Morphological description.</paragraph>
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<paragraph pageId="2" pageNumber="27">
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Small tree to 4-5 m tall; branch cylindric or subtetragonal, grey; leafy branchlets ascending or sub-erect, broadly rectangular to oblong-elliptic in outline, 6-12
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<normalizedToken originalValue="×">x</normalizedToken>
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11-20 cm, axis green in 1st year, greenish-yellow in 2nd and 3rd years, quadrangular or subterete in cross section. Leaves borne at 50-80° to branchlet axis, distichous, twisted at the short petiolate or nearly sessile base, petiole 2-4 mm long, almost opposite, 4-6 leaf pairs on each branchlet; leaves leathery, thin, linear or linear-lanceolate, 8-12.5
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<normalizedToken originalValue="×">x</normalizedToken>
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0.9-1.4 cm, straight, slightly falcate at the apex, cuneate at base, asymmetric, apex long acuminate, leaf margin flat or slightly down-curved, usually slightly wavy; leaf marginal band dark green in fresh, yellowish-green in dry, 2.5-3.2 mm wide; stomatal bands white or greenish-white, 2.1-3.0 mm wide, equal or slight narrower (> 3/4) to marginal bands, 25-30 rows, densely arranged; midvein slight sunken or flat adaxially, raised abaxially, 1.2-2.0 mm wide, narrower than the stomatal bands and marginal bands, green, same colour as the branchlet. Male-cone racemes borne 1-2, ca. 8.0 cm long; cones in 12-16 pairs, ovoid, cones at base maturing earlier than those at apex; microsporophylls 6-8, peltate, each with 4-8 pollen sacs. Ovulate cone and mature seed unknown. Male cones maturing March to April.
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</paragraph>
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<caption ID-Zenodo-Dep="3487737" doi="10.3897/phytokeys.130.33956.figure2" httpUri="https://binary.pensoft.net/fig/327584" pageId="2" pageNumber="27" start="Figure 2" startId="F2">
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<paragraph pageId="2" pageNumber="27">
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<emphasis bold="true" pageId="2" pageNumber="27">Figure 2.</emphasis>
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<taxonomicName authorityName="L. M. Gao" authorityYear="2019" class="Pinopsida" family="Taxaceae" genus="Amentotaxus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Amentotaxus hekouensis" order="Pinales" pageId="2" pageNumber="27" phylum="Tracheophyta" rank="species" species="hekouensis">
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<emphasis italics="true" pageId="2" pageNumber="27">Amentotaxus hekouensis</emphasis>
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</taxonomicName>
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L.M. Gao (from the holotype, drawn by Ling Wang).
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<emphasis bold="true" pageId="2" pageNumber="27">A</emphasis>
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Branchlets with male cone
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<emphasis bold="true" pageId="2" pageNumber="27">B</emphasis>
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pollen sacs.
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</paragraph>
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</caption>
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<caption ID-Zenodo-Dep="3487739" doi="10.3897/phytokeys.130.33956.figure3" httpUri="https://binary.pensoft.net/fig/327585" pageId="2" pageNumber="27" start="Figure 3" startId="F3">
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<paragraph pageId="2" pageNumber="27">
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<emphasis bold="true" pageId="2" pageNumber="27">Figure 3.</emphasis>
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<taxonomicName authorityName="L. M. Gao" authorityYear="2019" class="Pinopsida" family="Taxaceae" genus="Amentotaxus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Amentotaxus hekouensis" order="Pinales" pageId="2" pageNumber="27" phylum="Tracheophyta" rank="species" species="hekouensis">
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<emphasis italics="true" pageId="2" pageNumber="27">Amentotaxus hekouensis</emphasis>
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</taxonomicName>
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L.M. Gao.
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<emphasis bold="true" pageId="2" pageNumber="27">A</emphasis>
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Habitat
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<emphasis bold="true" pageId="2" pageNumber="27">B</emphasis>
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habit
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<emphasis bold="true" pageId="2" pageNumber="27">C</emphasis>
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branchlet with adaxial leaves
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<emphasis bold="true" pageId="2" pageNumber="27">D</emphasis>
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branchlet with abaxial leaves
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<emphasis bold="true" pageId="2" pageNumber="27">E</emphasis>
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young shoot
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<emphasis bold="true" pageId="2" pageNumber="27">F</emphasis>
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branchlet and male cone racemes with microsporophylls
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<emphasis bold="true" pageId="2" pageNumber="27">G</emphasis>
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male cone racemes
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<emphasis bold="true" pageId="2" pageNumber="27">H</emphasis>
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microsporophylls and pollen sacs.
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</paragraph>
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</caption>
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</subSubSection>
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<subSubSection pageId="2" pageNumber="27" type="materials_examined">
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<paragraph pageId="2" pageNumber="27">Additional specimens examined.</paragraph>
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<paragraph pageId="2" pageNumber="27">
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CHINA. Yunnan: Hekou County, Nanxi Town, 20 Sept 2006,
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<emphasis italics="true" pageId="2" pageNumber="27">L. M. Gao et al. GLM-06209</emphasis>
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(KUN!); ibid., 20 Oct 2012,
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<emphasis italics="true" pageId="2" pageNumber="27">L.M. Gao GLM-123943</emphasis>
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(KUN!), ibid., 31 Jan 2016,
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<emphasis italics="true" pageId="2" pageNumber="27">L. M. Gao et al. GLM-164258, GLM-164259</emphasis>
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(KUN!), ibid., 21 Oct. 2001,
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<emphasis italics="true" pageId="2" pageNumber="27">Y. M. Shui et al. 15078</emphasis>
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(KUN); Funing County, Long-may, 24 April 1940,
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<emphasis italics="true" pageId="2" pageNumber="27">C.W. Wang 88812</emphasis>
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(KUN); Malipo County, 4 Jan. 1940,
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<emphasis italics="true" pageId="2" pageNumber="27">C.W. Wang 86175</emphasis>
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(KUN). Vietnam. Lao Cai: Muong Khuong, Nam Chay commune, Moi village, 21 Nov. 2009,
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<emphasis italics="true" pageId="2" pageNumber="27">CKF team CKF250</emphasis>
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(KUN, CPC, CMBG); Hoa Binh: Mai Chau, Pa Co commune, 3 Dec. 2003,
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<emphasis italics="true" pageId="2" pageNumber="27">S.G. Wu et al</emphasis>
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.
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<emphasis italics="true" pageId="2" pageNumber="27">WP413</emphasis>
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(KUN). Laos. Xiang Khouang: Phak Leung Mt., Tanh village, Dec. 2008,
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<emphasis italics="true" pageId="2" pageNumber="27">X. Gong GX-5</emphasis>
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(KUN).
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</paragraph>
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</subSubSection>
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<subSubSection lastPageId="3" lastPageNumber="28" pageId="2" pageNumber="27" type="distribution">
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<paragraph pageId="2" pageNumber="27">Distribution and ecology.</paragraph>
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<paragraph lastPageId="3" lastPageNumber="28" pageId="2" pageNumber="27">
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<taxonomicName authorityName="L. M. Gao" authorityYear="2019" class="Pinopsida" family="Taxaceae" genus="Amentotaxus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Amentotaxus hekouensis" order="Pinales" pageId="2" pageNumber="27" phylum="Tracheophyta" rank="species" species="hekouensis">
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<emphasis italics="true" pageId="2" pageNumber="27">Amentotaxus hekouensis</emphasis>
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</taxonomicName>
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L.M. Gao has only been found in small disjunct areas in China (Funing, Malipo and Hekou County, Yunnan Province), Vietnam (Muong Khuong, Lao Cai Province; Mai Chau, Hoa Binh Province) and Laos (Xiang Khouang) (
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<figureCitation captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. Geographical distribution of Amentotaxus hekouensis L. M. Gao." figureDoi="10.3897/phytokeys.130.33956.figure4" httpUri="https://binary.pensoft.net/fig/327586" pageId="2" pageNumber="27">Figure 4</figureCitation>
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). It is confined to the montane evergreen forest on lime
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<pageBreakToken pageId="3" pageNumber="28" start="start">stone</pageBreakToken>
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mountains at elevations between 850 and 1200 (-1750) m. In part of its distribution along the border between China and Vietnam, it is sympatric with
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<taxonomicName class="Pinopsida" family="Taxaceae" higherTaxonomySource="GBIF" kingdom="Plantae" lsidName="A. yunnanensis" order="Pinales" pageId="3" pageNumber="28" phylum="Pinophyta" rank="species" species="yunnanensis">
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<emphasis italics="true" pageId="3" pageNumber="28">A. yunnanensis</emphasis>
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</taxonomicName>
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.
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</paragraph>
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<caption ID-Zenodo-Dep="3487741" doi="10.3897/phytokeys.130.33956.figure4" httpUri="https://binary.pensoft.net/fig/327586" pageId="3" pageNumber="28" start="Figure 4" startId="F4">
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<paragraph pageId="3" pageNumber="28">
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<emphasis bold="true" pageId="3" pageNumber="28">Figure 4.</emphasis>
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Geographical distribution of
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<taxonomicName authorityName="L. M. Gao" authorityYear="2019" class="Pinopsida" family="Taxaceae" genus="Amentotaxus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Amentotaxus hekouensis" order="Pinales" pageId="3" pageNumber="28" phylum="Tracheophyta" rank="species" species="hekouensis">
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<emphasis italics="true" pageId="3" pageNumber="28">Amentotaxus hekouensis</emphasis>
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</taxonomicName>
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L. M. Gao.
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</paragraph>
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</caption>
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<caption ID-Table-UUID="65DB58094A8AE2E290D07022A57E0A50" httpUri="http://table.plazi.org/id/65DB58094A8AE2E290D07022A57E0A50" pageId="3" pageNumber="28" start="Table 1" startId="T1">
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<paragraph pageId="3" pageNumber="28">
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<emphasis bold="true" pageId="3" pageNumber="28">Table 1.</emphasis>
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Morphological character comparison amongst the three regional
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|
<taxonomicName authorityName="Pilger" authorityYear="1916" class="Pinopsida" family="Taxaceae" genus="Amentotaxus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Amentotaxus" order="Pinales" pageId="3" pageNumber="28" phylum="Tracheophyta" rank="genus">
|
|||
|
|
<emphasis italics="true" pageId="3" pageNumber="28">Amentotaxus</emphasis>
|
|||
|
|
</taxonomicName>
|
|||
|
|
species.
|
|||
|
|
</paragraph>
|
|||
|
|
</caption>
|
|||
|
|
<paragraph pageId="3" pageNumber="28">
|
|||
|
|
<table pageId="3" pageNumber="28">
|
|||
|
|
<tr pageId="3" pageNumber="28">
|
|||
|
|
<th colspan="1" pageId="3" pageNumber="28" rowspan="1">Characters</th>
|
|||
|
|
<th colspan="1" pageId="3" pageNumber="28" rowspan="1">
|
|||
|
|
<taxonomicName class="Pinopsida" family="Taxaceae" higherTaxonomySource="GBIF" kingdom="Plantae" lsidName="A. hekouensis" order="Pinales" pageId="3" pageNumber="28" phylum="Pinophyta" rank="species" species="hekouensis">
|
|||
|
|
<emphasis italics="true" pageId="3" pageNumber="28">A. hekouensis</emphasis>
|
|||
|
|
</taxonomicName>
|
|||
|
|
</th>
|
|||
|
|
<th colspan="1" pageId="3" pageNumber="28" rowspan="1">
|
|||
|
|
<taxonomicName class="Pinopsida" family="Taxaceae" higherTaxonomySource="GBIF" kingdom="Plantae" lsidName="A. argotaenia" order="Pinales" pageId="3" pageNumber="28" phylum="Pinophyta" rank="species" species="argotaenia">
|
|||
|
|
<emphasis italics="true" pageId="3" pageNumber="28">A. argotaenia</emphasis>
|
|||
|
|
</taxonomicName>
|
|||
|
|
</th>
|
|||
|
|
<th colspan="1" pageId="3" pageNumber="28" rowspan="1">
|
|||
|
|
<taxonomicName class="Pinopsida" family="Taxaceae" higherTaxonomySource="GBIF" kingdom="Plantae" lsidName="A. yunnanensis" order="Pinales" pageId="3" pageNumber="28" phylum="Pinophyta" rank="species" species="yunnanensis">
|
|||
|
|
<emphasis italics="true" pageId="3" pageNumber="28">A. yunnanensis</emphasis>
|
|||
|
|
</taxonomicName>
|
|||
|
|
</th>
|
|||
|
|
</tr>
|
|||
|
|
<tr pageId="3" pageNumber="28">
|
|||
|
|
<td colspan="1" pageId="3" pageNumber="28" rowspan="1">Length of leaf</td>
|
|||
|
|
<td colspan="1" pageId="3" pageNumber="28" rowspan="1">8-12.5 cm</td>
|
|||
|
|
<td colspan="1" pageId="3" pageNumber="28" rowspan="1">2-11 cm</td>
|
|||
|
|
<td colspan="1" pageId="3" pageNumber="28" rowspan="1">3.5-10 cm</td>
|
|||
|
|
</tr>
|
|||
|
|
<tr pageId="3" pageNumber="28">
|
|||
|
|
<td colspan="1" pageId="3" pageNumber="28" rowspan="1">Width of leaf</td>
|
|||
|
|
<td colspan="1" pageId="3" pageNumber="28" rowspan="1">9-14 mm</td>
|
|||
|
|
<td colspan="1" pageId="3" pageNumber="28" rowspan="1">5-11 mm</td>
|
|||
|
|
<td colspan="1" pageId="3" pageNumber="28" rowspan="1">8-12 mm</td>
|
|||
|
|
</tr>
|
|||
|
|
<tr pageId="3" pageNumber="28">
|
|||
|
|
<td colspan="1" pageId="3" pageNumber="28" rowspan="1">Texture of leaves</td>
|
|||
|
|
<td colspan="1" pageId="3" pageNumber="28" rowspan="1">thin, leathery</td>
|
|||
|
|
<td colspan="1" pageId="3" pageNumber="28" rowspan="1">thick, leathery</td>
|
|||
|
|
<td colspan="1" pageId="3" pageNumber="28" rowspan="1">thick, leathery</td>
|
|||
|
|
</tr>
|
|||
|
|
<tr pageId="3" pageNumber="28">
|
|||
|
|
<td colspan="1" pageId="3" pageNumber="28" rowspan="1">Apex of the leaves</td>
|
|||
|
|
<td colspan="1" pageId="3" pageNumber="28" rowspan="1">long acuminate</td>
|
|||
|
|
<td colspan="1" pageId="3" pageNumber="28" rowspan="1">rounded to sharply triangular</td>
|
|||
|
|
<td colspan="1" pageId="3" pageNumber="28" rowspan="1">obtuse or tapered</td>
|
|||
|
|
</tr>
|
|||
|
|
<tr pageId="3" pageNumber="28">
|
|||
|
|
<td colspan="1" pageId="3" pageNumber="28" rowspan="1">Width of stomatal bands</td>
|
|||
|
|
<td colspan="1" pageId="3" pageNumber="28" rowspan="1">2.1-3.0 mm</td>
|
|||
|
|
<td colspan="1" pageId="3" pageNumber="28" rowspan="1">1-2 mm</td>
|
|||
|
|
<td colspan="1" pageId="3" pageNumber="28" rowspan="1">3-4 mm</td>
|
|||
|
|
</tr>
|
|||
|
|
<tr pageId="3" pageNumber="28">
|
|||
|
|
<td colspan="1" pageId="3" pageNumber="28" rowspan="1">No. rows of each stomatal band</td>
|
|||
|
|
<td colspan="1" pageId="3" pageNumber="28" rowspan="1">25-30</td>
|
|||
|
|
<td colspan="1" pageId="3" pageNumber="28" rowspan="1">15-25</td>
|
|||
|
|
<td colspan="1" pageId="3" pageNumber="28" rowspan="1">ca. 40</td>
|
|||
|
|
</tr>
|
|||
|
|
<tr pageId="3" pageNumber="28">
|
|||
|
|
<td colspan="1" pageId="3" pageNumber="28" rowspan="1">Ratio of stomatal band/marginal band</td>
|
|||
|
|
<td colspan="1" pageId="3" pageNumber="28" rowspan="1">0.75-1</td>
|
|||
|
|
<td colspan="1" pageId="3" pageNumber="28" rowspan="1"><1</td>
|
|||
|
|
<td colspan="1" pageId="3" pageNumber="28" rowspan="1">> 2</td>
|
|||
|
|
</tr>
|
|||
|
|
<tr pageId="3" pageNumber="28">
|
|||
|
|
<td colspan="1" pageId="3" pageNumber="28" rowspan="1">Colour of marginal band</td>
|
|||
|
|
<td colspan="1" pageId="3" pageNumber="28" rowspan="1">bright green in fresh</td>
|
|||
|
|
<td colspan="1" pageId="3" pageNumber="28" rowspan="1">Yellowish-green</td>
|
|||
|
|
<td colspan="1" pageId="3" pageNumber="28" rowspan="1">Yellowish-green in fresh</td>
|
|||
|
|
</tr>
|
|||
|
|
<tr pageId="3" pageNumber="28">
|
|||
|
|
<td colspan="1" pageId="3" pageNumber="28" rowspan="1">No. raceme per male cone</td>
|
|||
|
|
<td colspan="1" pageId="3" pageNumber="28" rowspan="1">1-2</td>
|
|||
|
|
<td colspan="1" pageId="3" pageNumber="28" rowspan="1">2-4 (10)</td>
|
|||
|
|
<td colspan="1" pageId="3" pageNumber="28" rowspan="1">4-6</td>
|
|||
|
|
</tr>
|
|||
|
|
</table>
|
|||
|
|
</paragraph>
|
|||
|
|
</subSubSection>
|
|||
|
|
<subSubSection pageId="3" pageNumber="28" type="phenology">
|
|||
|
|
<paragraph pageId="3" pageNumber="28">Phenology.</paragraph>
|
|||
|
|
<paragraph pageId="3" pageNumber="28">
|
|||
|
|
Male cones of
|
|||
|
|
<taxonomicName authorityName="L. M. Gao" authorityYear="2019" class="Pinopsida" family="Taxaceae" genus="Amentotaxus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Amentotaxus hekouensis" order="Pinales" pageId="3" pageNumber="28" phylum="Tracheophyta" rank="species" species="hekouensis">
|
|||
|
|
<emphasis italics="true" pageId="3" pageNumber="28">Amentotaxus hekouensis</emphasis>
|
|||
|
|
</taxonomicName>
|
|||
|
|
mature in March to April; seeds have not been seen so far.
|
|||
|
|
</paragraph>
|
|||
|
|
</subSubSection>
|
|||
|
|
<subSubSection pageId="3" pageNumber="28" type="etymology">
|
|||
|
|
<paragraph pageId="3" pageNumber="28">Etymology.</paragraph>
|
|||
|
|
<paragraph pageId="3" pageNumber="28">The specific epithet refers to the type location in Hekou County.</paragraph>
|
|||
|
|
</subSubSection>
|
|||
|
|
<subSubSection pageId="3" pageNumber="28" type="conservation status">
|
|||
|
|
<paragraph pageId="3" pageNumber="28">Conservation status.</paragraph>
|
|||
|
|
<paragraph pageId="3" pageNumber="28">
|
|||
|
|
Several surveys have been carried out in this region since 2006 and only a few small trees of the new species are known.
|
|||
|
|
<taxonomicName authorityName="L. M. Gao" authorityYear="2019" class="Pinopsida" family="Taxaceae" genus="Amentotaxus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Amentotaxus hekouensis" order="Pinales" pageId="3" pageNumber="28" phylum="Tracheophyta" rank="species" species="hekouensis">
|
|||
|
|
<emphasis italics="true" pageId="3" pageNumber="28">Amentotaxus hekouensis</emphasis>
|
|||
|
|
</taxonomicName>
|
|||
|
|
occurs in small and isolated patches of forests at very low densities. All the known localities are subject to degradation from surrounding agriculture and forest clearance. Given its montane habitat, the new species may also be susceptible to the impacts of climate change. The combination of a restricted, fragmented distribution with very limited Area of Occupancy, small population size and habitat conversion and destruction throughout its range indicate that its IUCN status should be Endangered under Criterion B2ab(ii,iii) (
|
|||
|
|
<bibRefCitation author="IUCN" journalOrPublisher="Journal of Systematics and Evolution" pageId="4" pageNumber="29" publicationUrl="http://www.iucnredlist.org/documents/RedListGuidelines.pdf" refId="B6" refString="IUCN, 2016b. Guidelines for Using the IUCN Red List Categories and Criteria, version 12 (February 2016). http://www.iucnredlist.org/documents/RedListGuidelines.pdf" title="Guidelines for Using the IUCN Red List Categories and Criteria, version 12 (February 2016)." url="http://www.iucnredlist.org/documents/RedListGuidelines.pdf" year="2016 b">IUCN 2016b</bibRefCitation>
|
|||
|
|
).
|
|||
|
|
</paragraph>
|
|||
|
|
</subSubSection>
|
|||
|
|
</treatment>
|
|||
|
|
</document>
|