502 lines
36 KiB
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502 lines
36 KiB
XML
<document ID-DOI="http://dx.doi.org/10.3897/phytokeys.134.37243" ID-GBIF-Dataset="a27b8b5e-684f-40b9-b1df-4795eda99fac" ID-PMC="PMC6821849" ID-Pensoft-Pub="1314-2003-134-115" ID-Pensoft-UUID="6AD50520CE555236A8FD966C3DCECF44" ID-PubMed="31686957" ModsDocID="1314-2003-134-115" checkinTime="1571900140897" checkinUser="pensoft" docAuthor="Zhu, Xin Xin, Zheng, Hai Lei, Wang, Jun, Gao, Yong Qian & Ma, Jin Shuang" docDate="2019" docId="170BBC0E92DF58BFAB5C28E83D80401E" docLanguage="en" docName="PhytoKeys 134: 115-124" docOrigin="PhytoKeys 134" docSource="http://dx.doi.org/10.3897/phytokeys.134.37243" docTitle="Isotrema cangshanense X. X. Zhu, H. L. Zheng & J. S. Ma 2019, sp. nov." docType="treatment" docVersion="6" id="6AD50520CE555236A8FD966C3DCECF44" lastPageNumber="115" masterDocId="6AD50520CE555236A8FD966C3DCECF44" masterDocTitle="Taxonomic studies on the genus Isotrema (Aristolochiaceae) from China: I. I. cangshanense, a new species from Yunnan" masterLastPageNumber="124" masterPageNumber="115" pageNumber="115" updateTime="1668139539022" 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>Taxonomic studies on the genus Isotrema (Aristolochiaceae) from China: I. I. cangshanense, a new species from Yunnan</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>Zhu, Xin Xin</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>Zheng, Hai Lei</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>Wang, Jun</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>Gao, Yong Qian</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>Ma, Jin Shuang</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>134</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>124</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.134.37243</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.134.37243</mods:identifier>
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<mods:identifier type="Pensoft-Pub">1314-2003-134-115</mods:identifier>
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<mods:identifier type="Pensoft-UUID">6AD50520CE555236A8FD966C3DCECF44</mods:identifier>
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</mods:mods>
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<treatment ID-GBIF-Taxon="159834626" LSID="urn:lsid:plazi:treatment:170BBC0E92DF58BFAB5C28E83D80401E" httpUri="http://treatment.plazi.org/id/170BBC0E92DF58BFAB5C28E83D80401E" 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="170BBC0E-92DF-58BF-AB5C-28E83D80401E" authority="X. X. Zhu, H. L. Zheng & J. S. Ma" authorityName="X. X. Zhu, H. L. Zheng & J. S. Ma" authorityYear="2019" class="Magnoliopsida" family="Aristolochiaceae" genus="Isotrema" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Isotrema cangshanense" order="Piperales" pageId="0" pageNumber="115" phylum="Tracheophyta" rank="species" species="cangshanense" status="sp. nov.">Isotrema cangshanense X.X.Zhu, H.L.Zheng & J.S.Ma</taxonomicName>
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<taxonomicNameLabel pageId="0" pageNumber="115">sp. nov.</taxonomicNameLabel>
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<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Isotrema cangshanense X. X. Zhu, H. L. Zheng & J. S. Ma, sp. nov. A habit B flower (lateral view) C flower (front view) D opened flower (showing the inner structure) E anthers and gynostemium F the dehiscent capsule G seed. Illustration by Shizhen Qiao." figureDoi="10.3897/phytokeys.134.37243.figure1" httpUri="https://binary.pensoft.net/fig/349316" pageId="0" pageNumber="115" tableDoi="10.3897/phytokeys.134.37243.figure1">Figures 1</figureCitation>
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<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Isotrema cangshanense X. X. Zhu, H. L. Zheng & J. S. Ma, sp. nov. A habit B leaves C flower bud D inflorescence E flower (front view) F flowers (lateral view) G anthers and gynostemium H the dehiscent capsule I seeds. Photographed by Xinxin Zhu." figureDoi="10.3897/phytokeys.134.37243.figure2" httpUri="https://binary.pensoft.net/fig/349317" pageId="0" pageNumber="115" tableDoi="10.3897/phytokeys.134.37243.figure2">, 2</figureCitation>
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<figureCitation captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Holotype of Isotrema cangshanense X. X. Zhu, H. L. Zheng & J. S. Ma, sp. nov. (CSH- 0164770)." figureDoi="10.3897/phytokeys.134.37243.figure3" httpUri="https://binary.pensoft.net/fig/349318" pageId="0" pageNumber="115" tableDoi="10.3897/phytokeys.134.37243.figure3">, 3</figureCitation>
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<figureCitation captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. A-C Isotrema cangshanense X. X. Zhu, H. L. Zheng & J. S. Ma, sp. nov. A leaves B flower (lateral view) C longitudinal section of flower (showing the inside structure) D-F Isotrema utriforme (S. M. Hwang) X. X. Zhu, S. Liao & J. S. Ma D leaves E flower (lateral view) F longitudinal section of flower (showing the inside structure) G-I I. forrestianum (J. S. Ma) X. X. Zhu, S. Liao & J. S. Ma G leaves H flower (lateral view) I longitudinal section of flower (showing the inside structure) J-L I. obliquum (S. M. Hwang) X. X. Zhu, S. Liao & J. S. Ma J leaves K flower (lateral view) L longitudinal section of flower (showing the inside structure). A-C, G-I Photographed by Xinxin Zhu D-F photographed by Lei Cai; J-L photographed by Yuan Wang." figureDoi="10.3897/phytokeys.134.37243.figure4" httpUri="https://binary.pensoft.net/fig/349319" pageId="0" pageNumber="115" tableDoi="10.3897/phytokeys.134.37243.figure4">
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, 4
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<normalizedToken originalValue="A–C">A-C</normalizedToken>
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</figureCitation>
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</paragraph>
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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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China. Yunnan: Yangbi County, The Cangshan Mountain, Sancha River,
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<geoCoordinate degrees="25" direction="north" minutes="41" orientation="latitude" precision="15" seconds="49" value="25.696943">25°41'49"N</geoCoordinate>
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,
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<geoCoordinate degrees="100" direction="east" minutes="02" orientation="longitude" precision="15" seconds="55" value="100.04861">100°02'55"E</geoCoordinate>
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, 2239 m a.s.l., 23 April 2019,
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<emphasis italics="true" pageId="0" pageNumber="115">X. X. Zhu et al. ZXX19353</emphasis>
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(holotype: CSH [CSH-0164770!]; isotypes: CSH!, KUN!).
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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="X. X. Zhu, H. L. Zheng & J. S. Ma" authorityYear="2019" class="Magnoliopsida" family="Aristolochiaceae" genus="Isotrema" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Isotrema cangshanense" order="Piperales" pageId="0" pageNumber="115" phylum="Tracheophyta" rank="species" species="cangshanense">
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<emphasis italics="true" pageId="0" pageNumber="115">Isotrema cangshanense</emphasis>
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</taxonomicName>
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is morphologically similar to
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<taxonomicName class="Magnoliopsida" family="Aristolochiaceae" genus="Isotrema" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Isotrema utriforme" order="Piperales" pageId="0" pageNumber="115" phylum="Tracheophyta" rank="species" species="utriforme">
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<emphasis italics="true" pageId="0" pageNumber="115">Isotrema utriforme</emphasis>
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</taxonomicName>
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(S. M. Hwang) X. X. Zhu, S. Liao & J. S. Ma,
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<taxonomicName lsidName="I. forrestianum" pageId="0" pageNumber="115" rank="species" species="forrestianum">
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<emphasis italics="true" pageId="0" pageNumber="115">I. forrestianum</emphasis>
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</taxonomicName>
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(J. S. Ma) X. X. Zhu, S. Liao & J. S. Ma,
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<taxonomicName lsidName="I. cucurbitoides" pageId="0" pageNumber="115" rank="species" species="cucurbitoides">
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<emphasis italics="true" pageId="0" pageNumber="115">I. cucurbitoides</emphasis>
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</taxonomicName>
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(C. F. Liang) X. X. Zhu, S. Liao & J. S. Ma and
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<taxonomicName lsidName="I. obliquum" pageId="0" pageNumber="115" rank="species" species="obliquum">
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<emphasis italics="true" pageId="0" pageNumber="115">I. obliquum</emphasis>
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</taxonomicName>
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(S. M. Hwang) X. X. Zhu, S. Liao & J. S. Ma (
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<bibRefCitation DOI="https://doi.org/10.11646/phytotaxa.401.1.1" author="Zhu, XX" journalOrPublisher="Phytotaxa" pageId="0" pageNumber="115" pagination="1 - 23" refId="B38" refString="Zhu, XX, Li, XQ, Liao, S, Du, C, Wang, Y, Wang, ZH, Yan, J, Zuo, YJ, Ma, JS, 2019a. Reinstatement of Isotrema, a new generic delimitation of Aristolochia subgen. Siphisia (Aristolochiaceae). Phytotaxa 401 (1): 1 - 23, DOI: https://doi.org/10.11646/phytotaxa.401.1.1" title="Reinstatement of Isotrema, a new generic delimitation of Aristolochia subgen. Siphisia (Aristolochiaceae)." url="https://doi.org/10.11646/phytotaxa.401.1.1" volume="401" year="2019 a">Zhu et al. 2019a</bibRefCitation>
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), but is distinguishable from these species by the following diagnostic characters: laminas oblong-lanceolate; calyx outside light yellow; limb narrow-ovoid, 2.4-3
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<normalizedToken originalValue="×">x</normalizedToken>
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0.9-1 cm, asymmetric, forming an acute angle with the upper part of the tube, 3-lobed, upper part separated to the middle, lower part shallowly lobed, inside black purple, net-shaped protruding stripes; throat ca. 5 mm in diam. Detailed morphological comparisons are shown in Table
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<tableCitation captionStart="Table 1" captionStartId="T1" captionText="Table 1. Morphological comparisons of Isotrema cangshanense with I. utriforme, I. forrestianum, I. cucurbitoides and I. obliquum." httpUri="http://table.plazi.org/id/289F5EE44F62DBFD33A502A1370C2310" pageId="0" pageNumber="115" tableUuid="289F5EE44F62DBFD33A502A1370C2310">1</tableCitation>
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and
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<figureCitation captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. A-C Isotrema cangshanense X. X. Zhu, H. L. Zheng & J. S. Ma, sp. nov. A leaves B flower (lateral view) C longitudinal section of flower (showing the inside structure) D-F Isotrema utriforme (S. M. Hwang) X. X. Zhu, S. Liao & J. S. Ma D leaves E flower (lateral view) F longitudinal section of flower (showing the inside structure) G-I I. forrestianum (J. S. Ma) X. X. Zhu, S. Liao & J. S. Ma G leaves H flower (lateral view) I longitudinal section of flower (showing the inside structure) J-L I. obliquum (S. M. Hwang) X. X. Zhu, S. Liao & J. S. Ma J leaves K flower (lateral view) L longitudinal section of flower (showing the inside structure). A-C, G-I Photographed by Xinxin Zhu D-F photographed by Lei Cai; J-L photographed by Yuan Wang." figureDoi="10.3897/phytokeys.134.37243.figure4" httpUri="https://binary.pensoft.net/fig/349319" pageId="0" pageNumber="115" tableDoi="10.3897/phytokeys.134.37243.figure4">Figure 4</figureCitation>
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.
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</paragraph>
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<caption doi="10.3897/phytokeys.134.37243.figure1" httpUri="https://binary.pensoft.net/fig/349316" pageId="0" pageNumber="115" start="Figure 1" startId="F1">
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<paragraph pageId="0" pageNumber="115">
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<emphasis bold="true" pageId="0" pageNumber="115">Figure 1.</emphasis>
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<taxonomicName authorityName="X. X. Zhu, H. L. Zheng & J. S. Ma" authorityYear="2019" class="Magnoliopsida" family="Aristolochiaceae" genus="Isotrema" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Isotrema cangshanense" order="Piperales" pageId="0" pageNumber="115" phylum="Tracheophyta" rank="species" species="cangshanense">
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<emphasis italics="true" pageId="0" pageNumber="115">Isotrema cangshanense</emphasis>
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</taxonomicName>
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X.X.Zhu, H.L.Zheng & J.S.Ma, sp. nov.
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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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flower (lateral view)
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<emphasis bold="true" pageId="0" pageNumber="115">C</emphasis>
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flower (front view)
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<emphasis bold="true" pageId="0" pageNumber="115">D</emphasis>
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opened flower (showing the inner structure)
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<emphasis bold="true" pageId="0" pageNumber="115">E</emphasis>
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anthers and gynostemium
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<emphasis bold="true" pageId="0" pageNumber="115">F</emphasis>
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the dehiscent capsule
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<emphasis bold="true" pageId="0" pageNumber="115">G</emphasis>
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seed. Illustration by Shizhen Qiao.
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</paragraph>
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</caption>
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<caption doi="10.3897/phytokeys.134.37243.figure2" httpUri="https://binary.pensoft.net/fig/349317" 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="X. X. Zhu, H. L. Zheng & J. S. Ma" authorityYear="2019" class="Magnoliopsida" family="Aristolochiaceae" genus="Isotrema" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Isotrema cangshanense" order="Piperales" pageId="0" pageNumber="115" phylum="Tracheophyta" rank="species" species="cangshanense">
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<emphasis italics="true" pageId="0" pageNumber="115">Isotrema cangshanense</emphasis>
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</taxonomicName>
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X.X.Zhu, H.L.Zheng & J.S.Ma, sp. nov.
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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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leaves
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<emphasis bold="true" pageId="0" pageNumber="115">C</emphasis>
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flower bud
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<emphasis bold="true" pageId="0" pageNumber="115">D</emphasis>
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inflorescence
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<emphasis bold="true" pageId="0" pageNumber="115">E</emphasis>
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flower (front view)
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<emphasis bold="true" pageId="0" pageNumber="115">F</emphasis>
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flowers (lateral view)
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<emphasis bold="true" pageId="0" pageNumber="115">G</emphasis>
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anthers and gynostemium
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<emphasis bold="true" pageId="0" pageNumber="115">H</emphasis>
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the dehiscent capsule
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<emphasis bold="true" pageId="0" pageNumber="115">I</emphasis>
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seeds. Photographed by Xinxin Zhu.
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</paragraph>
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</caption>
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<caption ID-Table-UUID="289F5EE44F62DBFD33A502A1370C2310" httpUri="http://table.plazi.org/id/289F5EE44F62DBFD33A502A1370C2310" pageId="0" pageNumber="115" start="Table 1" startId="T1">
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<paragraph pageId="0" pageNumber="115">
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<emphasis bold="true" pageId="0" pageNumber="115">Table 1.</emphasis>
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Morphological comparisons of
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<taxonomicName authorityName="X. X. Zhu, H. L. Zheng & J. S. Ma" authorityYear="2019" class="Magnoliopsida" family="Aristolochiaceae" genus="Isotrema" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Isotrema cangshanense" order="Piperales" pageId="0" pageNumber="115" phylum="Tracheophyta" rank="species" species="cangshanense">
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<emphasis italics="true" pageId="0" pageNumber="115">Isotrema cangshanense</emphasis>
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</taxonomicName>
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with
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<taxonomicName lsidName="I. utriforme" pageId="0" pageNumber="115" rank="species" species="utriforme">
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<emphasis italics="true" pageId="0" pageNumber="115">I. utriforme</emphasis>
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</taxonomicName>
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,
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<taxonomicName lsidName="I. forrestianum" pageId="0" pageNumber="115" rank="species" species="forrestianum">
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<emphasis italics="true" pageId="0" pageNumber="115">I. forrestianum</emphasis>
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</taxonomicName>
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,
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<taxonomicName lsidName="I. cucurbitoides" pageId="0" pageNumber="115" rank="species" species="cucurbitoides">
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<emphasis italics="true" pageId="0" pageNumber="115">I. cucurbitoides</emphasis>
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</taxonomicName>
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and
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<taxonomicName lsidName="I. obliquum" pageId="0" pageNumber="115" rank="species" species="obliquum">
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<emphasis italics="true" pageId="0" pageNumber="115">I. obliquum</emphasis>
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</taxonomicName>
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.
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</paragraph>
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</caption>
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<paragraph pageId="0" pageNumber="115">
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<table pageId="0" pageNumber="115">
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<tr pageId="0" pageNumber="115">
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<th colspan="1" pageId="0" pageNumber="115" rowspan="1">Characters</th>
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<th colspan="1" pageId="0" pageNumber="115" rowspan="1">
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<taxonomicName lsidName="I. cangshanense" pageId="0" pageNumber="115" rank="species" species="cangshanense">
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<emphasis italics="true" pageId="0" pageNumber="115">I. cangshanense</emphasis>
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</taxonomicName>
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</th>
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<th colspan="1" pageId="0" pageNumber="115" rowspan="1">
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<taxonomicName lsidName="I. utriforme" pageId="0" pageNumber="115" rank="species" species="utriforme">
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<emphasis italics="true" pageId="0" pageNumber="115">I. utriforme</emphasis>
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</taxonomicName>
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</th>
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<th colspan="1" pageId="0" pageNumber="115" rowspan="1">
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<taxonomicName lsidName="I. forrestianum" pageId="0" pageNumber="115" rank="species" species="forrestianum">
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<emphasis italics="true" pageId="0" pageNumber="115">I. forrestianum</emphasis>
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</taxonomicName>
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</th>
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<th colspan="1" pageId="0" pageNumber="115" rowspan="1">
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<taxonomicName lsidName="I. cucurbitoides" pageId="0" pageNumber="115" rank="species" species="cucurbitoides">
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<emphasis italics="true" pageId="0" pageNumber="115">I. cucurbitoides</emphasis>
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</taxonomicName>
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</th>
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<th colspan="1" pageId="0" pageNumber="115" rowspan="1">
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<taxonomicName lsidName="I. obliquum" pageId="0" pageNumber="115" rank="species" species="obliquum">
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<emphasis italics="true" pageId="0" pageNumber="115">I. obliquum</emphasis>
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</taxonomicName>
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</th>
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</tr>
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<tr pageId="0" pageNumber="115">
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<td colspan="1" pageId="0" pageNumber="115" rowspan="1">Lamina</td>
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<td colspan="1" pageId="0" pageNumber="115" rowspan="1">
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oblong-lanceolate, 6-20
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<normalizedToken originalValue="×">x</normalizedToken>
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1-7 cm, base auriculate, sinus 0.7-1.8 cm deep
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</td>
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<td colspan="1" pageId="0" pageNumber="115" rowspan="1">
|
||
ovate-lanceolate, 10-17
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
3-4 cm, base cordate, sinus 1-1.5 cm deep
|
||
</td>
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">
|
||
ovate to narrowly ovate, 7-21
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
3-10.5 cm, base cordate, sinus 1.5-2 cm deep
|
||
</td>
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">
|
||
trullate-lanceolate, ovate-lanceolate or lanceolate, 12-22
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
2.5-4.5 cm, base auriculate, sinus 1-2 cm deep
|
||
</td>
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">
|
||
oblong-lanceolate to narrowly ovate, 12-16
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
4-6.5 cm, base cordate, sinus 1-1.5 cm deep
|
||
</td>
|
||
</tr>
|
||
<tr pageId="0" pageNumber="115">
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">Inflorescence and flower</td>
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">flowers in axils of leafy shoots or, on older stems, solitary or in fascicles, each fascicle with 2-6 flowers</td>
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">flowers in axils of leafy hoots, solitary</td>
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">flowers in axils of leafy shoots, solitary or, on older stems, solitary or in fascicles, each fascicle with 2-4 flowers</td>
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">flowers in axils of leafy shoots, solitary</td>
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">flowers in axils of leafy shoots, solitary</td>
|
||
</tr>
|
||
<tr pageId="0" pageNumber="115">
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">Calyx outside</td>
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">light yellow</td>
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">light yellow</td>
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">light brown or purple</td>
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">undocumented</td>
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">yellowish white or pinky white</td>
|
||
</tr>
|
||
<tr pageId="0" pageNumber="115">
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">Limb shape</td>
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">saccate, narrow-ovoid, asymmetric, forming acute angle with upper tube</td>
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">saccate, ovoid, slightly asymmetric, straight extended from upper tube</td>
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">saccate, cylinder, asymmetric, forming almost right angle with upper tube</td>
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">cylindric, straight extended from upper tube</td>
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">not saccate or cylindric, forming right angle with upper tube</td>
|
||
</tr>
|
||
<tr pageId="0" pageNumber="115">
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">Limb size</td>
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">
|
||
2.5-3
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
0.7-0.8 cm
|
||
</td>
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">
|
||
1-2
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
0.5-1.5 cm
|
||
</td>
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">
|
||
6-8
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
1.5-2 cm
|
||
</td>
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">
|
||
2
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
0.2-0.3 cm
|
||
</td>
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">
|
||
1.2-1.3
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
0.8-0.9 cm
|
||
</td>
|
||
</tr>
|
||
<tr pageId="0" pageNumber="115">
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">Limb lobes</td>
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">3-lobed, upper part separated to the middle, lower part shallowly lobed, inside black purple, net-shaped protruding stripes</td>
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">3-lobed, shallowly lobed, inside black purple, sparse processes</td>
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">3-lobed, upper part separated to middle, lower part shallowly lobed, inside black purple, densely spinous outgrowths</td>
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">3-lobed, shallowly lobed, inside undocumented</td>
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">3-lobed, deeply lobed, slightly asymmetric, inside light brown, smooth</td>
|
||
</tr>
|
||
<tr pageId="0" pageNumber="115">
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">Throat</td>
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">ca. 5 mm in diam.</td>
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">ca. 1 mm in diam.</td>
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">ca. 3 mm in diam.</td>
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">ca. 1 mm in diam.</td>
|
||
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">ca. 6 mm in diam.</td>
|
||
</tr>
|
||
</table>
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="0" pageNumber="115" type="description">
|
||
<paragraph pageId="0" pageNumber="115">Description.</paragraph>
|
||
<paragraph pageId="0" pageNumber="115">
|
||
Woody liana. Stems terete, young shoots pubescent. Petioles 0.7-3.5 cm long, pubescent to almost glabrous; laminas oblong-lanceolate, 6-20
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
1-7 cm, adaxially almost glabrous, abaxially villous, base auriculate, sinus 0.7-1.8 cm deep, apex acute, margin entire; basal veins 2-3 pairs, palmate, 2-3 pairs from base, lateral veins 12-18 pairs, pinnate. Flowers in axils of leafy shoots or, on older stems, solitary or in fascicles, each fascicle with 2-6 flowers; pedicels 1.5-4 cm, pubescent partly villous; bracteole 1, lanceolate, 2-5
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
1-2 mm, adaxially glabrous, abaxially densely villous, inserted below the middle of pedicel. Calyx tube geniculately curved, outside light yellow, abaxially sparsely pubescent partly villous; basal tube 1.8-2.5
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
0.5-0.6 cm, inside black purple, densely villous at base; upper tube 1.3-1.6
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
0.6-0.8 cm, inside black purple at base, light yellow towards apex, light red at upper part; limb saccate, narrow-ovoid, asymmetric, forming acute angle with upper part of the tube, 2.5-3
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
0.7-0.8 cm, 3-lobed, upper part separated to the middle, lower part shallowly lobed, upper two lobes triangular-lanceolate, 1.2-1.5
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
0.4-0.5 cm, lower lobe triangle, 0.4-0.7
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
0.4-0.5 cm, inside black purple, net-shaped protruding stripes; throat ca. 5 mm in diam. Anthers 6, oblong, ca. 1.5 mm long, adnate in 3 pairs to base of gynostemium, opposite to lobes. Gynostemium ca. 2.7
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
2.5 mm, 3-lobed. Ovary terete, ca. 10 mm long, densely villous. Capsule obovate-elliptic, ca. 4.5
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
2 cm. Seeds obovate-elliptic, ca. 5
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
4 mm, not winged, the adaxial surface deeply concave and the abaxial surface convex, both surfaces glabrous.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="0" pageNumber="115" type="phenology">
|
||
<paragraph pageId="0" pageNumber="115">Phenology.</paragraph>
|
||
<paragraph pageId="0" pageNumber="115">Flowering from April to May, fruiting is predicted from July to August (we have seen is just two residual fruit from last year).</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="0" pageNumber="115" type="etymology">
|
||
<paragraph pageId="0" pageNumber="115">Etymology.</paragraph>
|
||
<paragraph pageId="0" pageNumber="115">
|
||
The specific epithet derives from the type locality, The Cangshan Mountain, Yangbi County, western Yunnan, south-western China. The Chinese name is given as
|
||
<normalizedToken originalValue="“苍山关木通”">"苍山关木通"</normalizedToken>
|
||
.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="0" pageNumber="115" type="distribution">
|
||
<paragraph pageId="0" pageNumber="115">Distribution and habitat.</paragraph>
|
||
<paragraph pageId="0" pageNumber="115">
|
||
The new species is currently known only from the Cangshan Mountain, Yangbi County, Yunnan, China. It grows in forests at an elevation between 2239 m and 2379 m, together with
|
||
<taxonomicName class="Dicotyledoneae" family="Fagaceae" genus="Castanopsis" higherTaxonomySource="GBIF" kingdom="Plantae" lsidName="Castanopsis" order="Fagales" pageId="0" pageNumber="115" phylum="Angiospermae" rank="genus">
|
||
<emphasis italics="true" pageId="0" pageNumber="115">Castanopsis</emphasis>
|
||
</taxonomicName>
|
||
sp. (
|
||
<taxonomicName class="Dicotyledoneae" family="Fagaceae" higherTaxonomySource="GBIF" kingdom="Plantae" lsidName="" order="Fagales" pageId="0" pageNumber="115" phylum="Angiospermae" rank="family">Fagaceae</taxonomicName>
|
||
),
|
||
<taxonomicName class="Liliopsida" family="Colchicaceae" genus="Disporum" higherTaxonomySource="GBIF" kingdom="Plantae" lsidName="Disporum" order="Liliales" pageId="0" pageNumber="115" phylum="Magnoliophyta" rank="genus">
|
||
<emphasis italics="true" pageId="0" pageNumber="115">Disporum</emphasis>
|
||
</taxonomicName>
|
||
sp. (
|
||
<taxonomicName class="Liliopsida" family="Colchicaceae" higherTaxonomySource="GBIF" kingdom="Plantae" lsidName="" order="Liliales" pageId="0" pageNumber="115" phylum="Magnoliophyta" rank="family">Colchicaceae</taxonomicName>
|
||
),
|
||
<taxonomicName class="Dicotyledoneae" family="Lamiaceae" genus="Notochaete" higherTaxonomySource="GBIF" kingdom="Plantae" lsidName="Notochaete hamosa" order="Tubiflorae" pageId="0" pageNumber="115" phylum="Angiospermae" rank="species" species="hamosa">
|
||
<emphasis italics="true" pageId="0" pageNumber="115">Notochaete hamosa</emphasis>
|
||
</taxonomicName>
|
||
Benth. (
|
||
<taxonomicName class="Dicotyledoneae" family="Lamiaceae" higherTaxonomySource="GBIF" kingdom="Plantae" lsidName="" order="Tubiflorae" pageId="0" pageNumber="115" phylum="Angiospermae" rank="family">Lamiaceae</taxonomicName>
|
||
),
|
||
<taxonomicName class="Dicotyledoneae" family="Rosaceae" genus="Photinia" higherTaxonomySource="GBIF" kingdom="Plantae" lsidName="Photinia" order="Rosales" pageId="0" pageNumber="115" phylum="Angiospermae" rank="genus">
|
||
<emphasis italics="true" pageId="0" pageNumber="115">Photinia</emphasis>
|
||
</taxonomicName>
|
||
Lindl. (
|
||
<taxonomicName class="Dicotyledoneae" family="Rosaceae" higherTaxonomySource="GBIF" kingdom="Plantae" lsidName="" order="Rosales" pageId="0" pageNumber="115" phylum="Angiospermae" rank="family">Rosaceae</taxonomicName>
|
||
),
|
||
<taxonomicName class="Dicotyledoneae" family="Rosaceae" genus="Rubus" higherTaxonomySource="GBIF" kingdom="Plantae" lsidName="Rubus" order="Rosales" pageId="0" pageNumber="115" phylum="Angiospermae" rank="genus">
|
||
<emphasis italics="true" pageId="0" pageNumber="115">Rubus</emphasis>
|
||
</taxonomicName>
|
||
sp. (
|
||
<taxonomicName class="Dicotyledoneae" family="Rosaceae" higherTaxonomySource="GBIF" kingdom="Plantae" lsidName="" order="Rosales" pageId="0" pageNumber="115" phylum="Angiospermae" rank="family">Rosaceae</taxonomicName>
|
||
) etc.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="0" pageNumber="115" type="iucn red list category">
|
||
<paragraph pageId="0" pageNumber="115">IUCN Red List category.</paragraph>
|
||
<paragraph pageId="0" pageNumber="115">
|
||
Since
|
||
<taxonomicName authorityName="X. X. Zhu, H. L. Zheng & J. S. Ma" authorityYear="2019" class="Magnoliopsida" family="Aristolochiaceae" genus="Isotrema" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Isotrema cangshanense" order="Piperales" pageId="0" pageNumber="115" phylum="Tracheophyta" rank="species" species="cangshanense">
|
||
<emphasis italics="true" pageId="0" pageNumber="115">Isotrema cangshanense</emphasis>
|
||
</taxonomicName>
|
||
is known from one population only, with fewer than ten individuals, the new species is assigned a preliminary status of Vulnerable (VU D2) according to IUCN Red List Criteria (
|
||
<bibRefCitation author="IUCN" journalOrPublisher="5. Science Press, Beijing & Missouri Botanical Garden Press, St. Louis" pageId="0" pageNumber="115" refId="B17" refString="IUCN, 2012. IUCN Red List Categories and Criteria, Version 3.1 (2nd edn). Gland and Cambridge, 32 pp." title="IUCN Red List Categories and Criteria, Version 3.1 (2 nd edn). Gland and Cambridge, 32 pp." year="2012">IUCN 2012</bibRefCitation>
|
||
), indicating a population with a very restricted area of occupancy (typically less than 20 km2) or number of locations (typically five or fewer). Although the area is under protection as a national nature reserve, habitat disturbance brought about by human activities, such as grazing and felling, may have a negative impact on the new species.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="0" pageNumber="115" type="materials_examined">
|
||
<paragraph pageId="0" pageNumber="115">Specimens examined (Paratypes).</paragraph>
|
||
<paragraph pageId="0" pageNumber="115">
|
||
<emphasis bold="true" pageId="0" pageNumber="115">China. Yunnan</emphasis>
|
||
: Yangbi County, The Cangshan Mountain, 2300 m a.s.l., 23 April 2019,
|
||
<emphasis italics="true" pageId="0" pageNumber="115">X. X. Zhu et al. ZXX19354</emphasis>
|
||
(CSH!); the same location, 2379 m a.s.l., 23 April 2019,
|
||
<emphasis italics="true" pageId="0" pageNumber="115">X. X. Zhu et al. ZXX19355</emphasis>
|
||
(CSH!).
|
||
</paragraph>
|
||
<caption doi="10.3897/phytokeys.134.37243.figure3" httpUri="https://binary.pensoft.net/fig/349318" pageId="0" pageNumber="115" start="Figure 3" startId="F3">
|
||
<paragraph pageId="0" pageNumber="115">
|
||
<emphasis bold="true" pageId="0" pageNumber="115">Figure 3.</emphasis>
|
||
Holotype of
|
||
<taxonomicName authorityName="X. X. Zhu, H. L. Zheng & J. S. Ma" authorityYear="2019" class="Magnoliopsida" family="Aristolochiaceae" genus="Isotrema" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Isotrema cangshanense" order="Piperales" pageId="0" pageNumber="115" phylum="Tracheophyta" rank="species" species="cangshanense">
|
||
<emphasis italics="true" pageId="0" pageNumber="115">Isotrema cangshanense</emphasis>
|
||
</taxonomicName>
|
||
X. X.Zhu, H.L.Zheng & J.S.Ma, sp. nov. (CSH-0164770).
|
||
</paragraph>
|
||
</caption>
|
||
<caption doi="10.3897/phytokeys.134.37243.figure4" httpUri="https://binary.pensoft.net/fig/349319" pageId="0" pageNumber="115" start="Figure 4" startId="F4">
|
||
<paragraph pageId="0" pageNumber="115">
|
||
<emphasis bold="true" pageId="0" pageNumber="115">Figure 4.</emphasis>
|
||
<emphasis bold="true" pageId="0" pageNumber="115">
|
||
<normalizedToken originalValue="A–C">A-C</normalizedToken>
|
||
</emphasis>
|
||
<taxonomicName authorityName="X. X. Zhu, H. L. Zheng & J. S. Ma" authorityYear="2019" class="Magnoliopsida" family="Aristolochiaceae" genus="Isotrema" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Isotrema cangshanense" order="Piperales" pageId="0" pageNumber="115" phylum="Tracheophyta" rank="species" species="cangshanense">
|
||
<emphasis italics="true" pageId="0" pageNumber="115">Isotrema cangshanense</emphasis>
|
||
</taxonomicName>
|
||
X.X.Zhu, H.L.Zheng & J.S.Ma, sp. nov.
|
||
<emphasis bold="true" pageId="0" pageNumber="115">A</emphasis>
|
||
leaves
|
||
<emphasis bold="true" pageId="0" pageNumber="115">B</emphasis>
|
||
flower (lateral view)
|
||
<emphasis bold="true" pageId="0" pageNumber="115">C</emphasis>
|
||
longitudinal section of flower (showing the inside structure)
|
||
<emphasis bold="true" pageId="0" pageNumber="115">
|
||
<normalizedToken originalValue="D–F">D-F</normalizedToken>
|
||
</emphasis>
|
||
<taxonomicName class="Magnoliopsida" family="Aristolochiaceae" genus="Isotrema" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Isotrema utriforme" order="Piperales" pageId="0" pageNumber="115" phylum="Tracheophyta" rank="species" species="utriforme">
|
||
<emphasis italics="true" pageId="0" pageNumber="115">Isotrema utriforme</emphasis>
|
||
</taxonomicName>
|
||
(S. M. Hwang) X. X. Zhu, S. Liao & J. S. Ma
|
||
<emphasis bold="true" pageId="0" pageNumber="115">D</emphasis>
|
||
leaves
|
||
<emphasis bold="true" pageId="0" pageNumber="115">E</emphasis>
|
||
flower (lateral view)
|
||
<emphasis bold="true" pageId="0" pageNumber="115">F</emphasis>
|
||
longitudinal section of flower (showing the inside structure)
|
||
<emphasis bold="true" pageId="0" pageNumber="115">
|
||
<normalizedToken originalValue="G–I">G-I</normalizedToken>
|
||
</emphasis>
|
||
<taxonomicName lsidName="I. forrestianum" pageId="0" pageNumber="115" rank="species" species="forrestianum">
|
||
<emphasis italics="true" pageId="0" pageNumber="115">I. forrestianum</emphasis>
|
||
</taxonomicName>
|
||
(J. S. Ma) X. X. Zhu, S. Liao & J. S. Ma
|
||
<emphasis bold="true" pageId="0" pageNumber="115">G</emphasis>
|
||
leaves
|
||
<emphasis bold="true" pageId="0" pageNumber="115">H</emphasis>
|
||
flower (lateral view)
|
||
<emphasis bold="true" pageId="0" pageNumber="115">I</emphasis>
|
||
longitudinal section of flower (showing the inside structure)
|
||
<emphasis bold="true" pageId="0" pageNumber="115">
|
||
<normalizedToken originalValue="J–L">J-L</normalizedToken>
|
||
</emphasis>
|
||
<taxonomicName lsidName="I. obliquum" pageId="0" pageNumber="115" rank="species" species="obliquum">
|
||
<emphasis italics="true" pageId="0" pageNumber="115">I. obliquum</emphasis>
|
||
</taxonomicName>
|
||
(S. M. Hwang) X. X. Zhu, S. Liao & J. S. Ma
|
||
<emphasis bold="true" pageId="0" pageNumber="115">J</emphasis>
|
||
leaves
|
||
<emphasis bold="true" pageId="0" pageNumber="115">K</emphasis>
|
||
flower (lateral view)
|
||
<emphasis bold="true" pageId="0" pageNumber="115">L</emphasis>
|
||
longitudinal section of flower (showing the inside structure).
|
||
<emphasis bold="true" pageId="0" pageNumber="115">
|
||
<normalizedToken originalValue="A–C">A-C</normalizedToken>
|
||
,
|
||
<normalizedToken originalValue="G–I">G-I</normalizedToken>
|
||
</emphasis>
|
||
Photographed by Xinxin Zhu
|
||
<emphasis bold="true" pageId="0" pageNumber="115">
|
||
<normalizedToken originalValue="D–F">D-F</normalizedToken>
|
||
</emphasis>
|
||
photographed by Lei Cai;
|
||
<emphasis bold="true" pageId="0" pageNumber="115">
|
||
<normalizedToken originalValue="J–L">J-L</normalizedToken>
|
||
</emphasis>
|
||
photographed by Yuan Wang.
|
||
</paragraph>
|
||
</caption>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |