treatments-xml/data/17/0B/BC/170BBC0E92DF58BFAB5C28E83D80401E.xml
2024-06-21 12:30:18 +02:00

502 lines
36 KiB
XML
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

<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 &amp; 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 &amp; 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">
<mods:mods xmlns:mods="http://www.loc.gov/mods/v3">
<mods:titleInfo>
<mods:title>Taxonomic studies on the genus Isotrema (Aristolochiaceae) from China: I. I. cangshanense, a new species from Yunnan</mods:title>
</mods:titleInfo>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Zhu, Xin Xin</mods:namePart>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Zheng, Hai Lei</mods:namePart>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Wang, Jun</mods:namePart>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Gao, Yong Qian</mods:namePart>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Ma, Jin Shuang</mods:namePart>
</mods:name>
<mods:typeOfResource>text</mods:typeOfResource>
<mods:relatedItem type="host">
<mods:titleInfo>
<mods:title>PhytoKeys</mods:title>
</mods:titleInfo>
<mods:part>
<mods:date>2019</mods:date>
<mods:detail type="volume">
<mods:number>134</mods:number>
</mods:detail>
<mods:extent unit="page">
<mods:start>115</mods:start>
<mods:end>124</mods:end>
</mods:extent>
</mods:part>
</mods:relatedItem>
<mods:location>
<mods:url>http://dx.doi.org/10.3897/phytokeys.134.37243</mods:url>
</mods:location>
<mods:classification>journal article</mods:classification>
<mods:identifier type="DOI">http://dx.doi.org/10.3897/phytokeys.134.37243</mods:identifier>
<mods:identifier type="Pensoft-Pub">1314-2003-134-115</mods:identifier>
<mods:identifier type="Pensoft-UUID">6AD50520CE555236A8FD966C3DCECF44</mods:identifier>
</mods:mods>
<treatment ID-GBIF-Taxon="159834626" LSID="urn:lsid:plazi:treatment:170BBC0E92DF58BFAB5C28E83D80401E" httpUri="http://treatment.plazi.org/id/170BBC0E92DF58BFAB5C28E83D80401E" lastPageNumber="115" pageId="0" pageNumber="115">
<subSubSection pageId="0" pageNumber="115" type="nomenclature">
<paragraph pageId="0" pageNumber="115">
<taxonomicName LSID="170BBC0E-92DF-58BF-AB5C-28E83D80401E" authority="X. X. Zhu, H. L. Zheng &amp; J. S. Ma" authorityName="X. X. Zhu, H. L. Zheng &amp; 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 &amp; J.S.Ma</taxonomicName>
<taxonomicNameLabel pageId="0" pageNumber="115">sp. nov.</taxonomicNameLabel>
<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Isotrema cangshanense X. X. Zhu, H. L. Zheng &amp; 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>
<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Isotrema cangshanense X. X. Zhu, H. L. Zheng &amp; 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>
<figureCitation captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Holotype of Isotrema cangshanense X. X. Zhu, H. L. Zheng &amp; 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>
<figureCitation captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. A-C Isotrema cangshanense X. X. Zhu, H. L. Zheng &amp; 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 &amp; 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 &amp; 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 &amp; 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">
, 4
<normalizedToken originalValue="AC">A-C</normalizedToken>
</figureCitation>
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="115" type="materials_examined">
<paragraph pageId="0" pageNumber="115">Type.</paragraph>
<paragraph pageId="0" pageNumber="115">
China. Yunnan: Yangbi County, The Cangshan Mountain, Sancha River,
<geoCoordinate degrees="25" direction="north" minutes="41" orientation="latitude" precision="15" seconds="49" value="25.696943">25°41'49&quot;N</geoCoordinate>
,
<geoCoordinate degrees="100" direction="east" minutes="02" orientation="longitude" precision="15" seconds="55" value="100.04861">100°02'55&quot;E</geoCoordinate>
, 2239 m a.s.l., 23 April 2019,
<emphasis italics="true" pageId="0" pageNumber="115">X. X. Zhu et al. ZXX19353</emphasis>
(holotype: CSH [CSH-0164770!]; isotypes: CSH!, KUN!).
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="115" type="diagnosis">
<paragraph pageId="0" pageNumber="115">Diagnosis.</paragraph>
<paragraph pageId="0" pageNumber="115">
<taxonomicName authorityName="X. X. Zhu, H. L. Zheng &amp; 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 morphologically similar to
<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 &amp; J. S. Ma,
<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 &amp; J. S. Ma,
<taxonomicName lsidName="I. cucurbitoides" pageId="0" pageNumber="115" rank="species" species="cucurbitoides">
<emphasis italics="true" pageId="0" pageNumber="115">I. cucurbitoides</emphasis>
</taxonomicName>
(C. F. Liang) X. X. Zhu, S. Liao &amp; J. S. Ma and
<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 &amp; J. S. Ma (
<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>
), but is distinguishable from these species by the following diagnostic characters: laminas oblong-lanceolate; calyx outside light yellow; limb narrow-ovoid, 2.4-3
<normalizedToken originalValue="×">x</normalizedToken>
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
<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>
and
<figureCitation captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. A-C Isotrema cangshanense X. X. Zhu, H. L. Zheng &amp; 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 &amp; 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 &amp; 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 &amp; 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>
.
</paragraph>
<caption doi="10.3897/phytokeys.134.37243.figure1" httpUri="https://binary.pensoft.net/fig/349316" pageId="0" pageNumber="115" start="Figure 1" startId="F1">
<paragraph pageId="0" pageNumber="115">
<emphasis bold="true" pageId="0" pageNumber="115">Figure 1.</emphasis>
<taxonomicName authorityName="X. X. Zhu, H. L. Zheng &amp; 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 &amp; J.S.Ma, sp. nov.
<emphasis bold="true" pageId="0" pageNumber="115">A</emphasis>
habit
<emphasis bold="true" pageId="0" pageNumber="115">B</emphasis>
flower (lateral view)
<emphasis bold="true" pageId="0" pageNumber="115">C</emphasis>
flower (front view)
<emphasis bold="true" pageId="0" pageNumber="115">D</emphasis>
opened flower (showing the inner structure)
<emphasis bold="true" pageId="0" pageNumber="115">E</emphasis>
anthers and gynostemium
<emphasis bold="true" pageId="0" pageNumber="115">F</emphasis>
the dehiscent capsule
<emphasis bold="true" pageId="0" pageNumber="115">G</emphasis>
seed. Illustration by Shizhen Qiao.
</paragraph>
</caption>
<caption doi="10.3897/phytokeys.134.37243.figure2" httpUri="https://binary.pensoft.net/fig/349317" pageId="0" pageNumber="115" start="Figure 2" startId="F2">
<paragraph pageId="0" pageNumber="115">
<emphasis bold="true" pageId="0" pageNumber="115">Figure 2.</emphasis>
<taxonomicName authorityName="X. X. Zhu, H. L. Zheng &amp; 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 &amp; J.S.Ma, sp. nov.
<emphasis bold="true" pageId="0" pageNumber="115">A</emphasis>
habit
<emphasis bold="true" pageId="0" pageNumber="115">B</emphasis>
leaves
<emphasis bold="true" pageId="0" pageNumber="115">C</emphasis>
flower bud
<emphasis bold="true" pageId="0" pageNumber="115">D</emphasis>
inflorescence
<emphasis bold="true" pageId="0" pageNumber="115">E</emphasis>
flower (front view)
<emphasis bold="true" pageId="0" pageNumber="115">F</emphasis>
flowers (lateral view)
<emphasis bold="true" pageId="0" pageNumber="115">G</emphasis>
anthers and gynostemium
<emphasis bold="true" pageId="0" pageNumber="115">H</emphasis>
the dehiscent capsule
<emphasis bold="true" pageId="0" pageNumber="115">I</emphasis>
seeds. Photographed by Xinxin Zhu.
</paragraph>
</caption>
<caption ID-Table-UUID="289F5EE44F62DBFD33A502A1370C2310" httpUri="http://table.plazi.org/id/289F5EE44F62DBFD33A502A1370C2310" 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 comparisons of
<taxonomicName authorityName="X. X. Zhu, H. L. Zheng &amp; 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>
with
<taxonomicName lsidName="I. utriforme" pageId="0" pageNumber="115" rank="species" species="utriforme">
<emphasis italics="true" pageId="0" pageNumber="115">I. utriforme</emphasis>
</taxonomicName>
,
<taxonomicName lsidName="I. forrestianum" pageId="0" pageNumber="115" rank="species" species="forrestianum">
<emphasis italics="true" pageId="0" pageNumber="115">I. forrestianum</emphasis>
</taxonomicName>
,
<taxonomicName lsidName="I. cucurbitoides" pageId="0" pageNumber="115" rank="species" species="cucurbitoides">
<emphasis italics="true" pageId="0" pageNumber="115">I. cucurbitoides</emphasis>
</taxonomicName>
and
<taxonomicName lsidName="I. obliquum" pageId="0" pageNumber="115" rank="species" species="obliquum">
<emphasis italics="true" pageId="0" pageNumber="115">I. obliquum</emphasis>
</taxonomicName>
.
</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="I. cangshanense" pageId="0" pageNumber="115" rank="species" species="cangshanense">
<emphasis italics="true" pageId="0" pageNumber="115">I. cangshanense</emphasis>
</taxonomicName>
</th>
<th colspan="1" pageId="0" pageNumber="115" rowspan="1">
<taxonomicName lsidName="I. utriforme" pageId="0" pageNumber="115" rank="species" species="utriforme">
<emphasis italics="true" pageId="0" pageNumber="115">I. utriforme</emphasis>
</taxonomicName>
</th>
<th colspan="1" pageId="0" pageNumber="115" rowspan="1">
<taxonomicName lsidName="I. forrestianum" pageId="0" pageNumber="115" rank="species" species="forrestianum">
<emphasis italics="true" pageId="0" pageNumber="115">I. forrestianum</emphasis>
</taxonomicName>
</th>
<th colspan="1" pageId="0" pageNumber="115" rowspan="1">
<taxonomicName lsidName="I. cucurbitoides" pageId="0" pageNumber="115" rank="species" species="cucurbitoides">
<emphasis italics="true" pageId="0" pageNumber="115">I. cucurbitoides</emphasis>
</taxonomicName>
</th>
<th colspan="1" pageId="0" pageNumber="115" rowspan="1">
<taxonomicName lsidName="I. obliquum" pageId="0" pageNumber="115" rank="species" species="obliquum">
<emphasis italics="true" pageId="0" pageNumber="115">I. obliquum</emphasis>
</taxonomicName>
</th>
</tr>
<tr pageId="0" pageNumber="115">
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">Lamina</td>
<td colspan="1" pageId="0" pageNumber="115" rowspan="1">
oblong-lanceolate, 6-20
<normalizedToken originalValue="×">x</normalizedToken>
1-7 cm, base auriculate, sinus 0.7-1.8 cm deep
</td>
<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”">&quot;苍山关木通&quot;</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 &amp; 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 &amp; 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 &amp; 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 &amp; 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="AC">A-C</normalizedToken>
</emphasis>
<taxonomicName authorityName="X. X. Zhu, H. L. Zheng &amp; 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 &amp; 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="DF">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 &amp; 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="GI">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 &amp; 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="JL">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 &amp; 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="AC">A-C</normalizedToken>
,
<normalizedToken originalValue="GI">G-I</normalizedToken>
</emphasis>
Photographed by Xinxin Zhu
<emphasis bold="true" pageId="0" pageNumber="115">
<normalizedToken originalValue="DF">D-F</normalizedToken>
</emphasis>
photographed by Lei Cai;
<emphasis bold="true" pageId="0" pageNumber="115">
<normalizedToken originalValue="JL">J-L</normalizedToken>
</emphasis>
photographed by Yuan Wang.
</paragraph>
</caption>
</subSubSection>
</treatment>
</document>