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<document ID-DOI="http://dx.doi.org/10.3897/phytokeys.94.21557" ID-PMC="PMC5799737" ID-Pensoft-Pub="1314-2003-94-13" ID-Pensoft-UUID="DE6F7053FFDC71657E48FF9AFFD2FFF6" ID-PubMed="29416416" ID-Zenodo-Dep="1166357" ModsDocID="1314-2003-94-13" checkinTime="1517263967780" checkinUser="pensoft" docAuthor="Yang, Bin, Ding, Hong-Bo, Zhou, Shi-Shun, Zhu, Xinxin, Li, Ren, Maw, Mya Bhone &amp; Tan, Yun-Hong" docDate="2018" docId="6C7238BD6722572C849F5F1D4A6334B3" docLanguage="en" docName="PhytoKeys 94: 13-22" docOrigin="PhytoKeys 94" docPubDate="2018-01-29" docSource="http://dx.doi.org/10.3897/phytokeys.94.21557" docTitle="Aristolochia sinoburmanica Y. H. Tan &amp; B. Yang 2018, sp. nov." docType="treatment" docVersion="4" id="DE6F7053FFDC71657E48FF9AFFD2FFF6" lastPageNumber="15" masterDocId="DE6F7053FFDC71657E48FF9AFFD2FFF6" masterDocTitle="Aristolochia sinoburmanica (Aristolochiaceae), a new species from north Myanmar" masterLastPageNumber="22" masterPageNumber="13" pageNumber="14" updateTime="1668142216244" updateUser="ExternalLinkService">
<mods:mods xmlns:mods="http://www.loc.gov/mods/v3">
<mods:titleInfo>
<mods:title>Aristolochia sinoburmanica (Aristolochiaceae), a new species from north Myanmar</mods:title>
</mods:titleInfo>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Yang, Bin</mods:namePart>
<mods:affiliation>Southeast Asia Biodiversity Research Institute, Chinese Academy of Sciences, Yezin, Nay Pyi Taw 05282, Myanmar &amp; Center for Integrative Conservation, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Menglun, Mengla, Yunnan 666303, P. R. China</mods:affiliation>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Ding, Hong-Bo</mods:namePart>
<mods:affiliation>Southeast Asia Biodiversity Research Institute, Chinese Academy of Sciences, Yezin, Nay Pyi Taw 05282, Myanmar &amp; Center for Integrative Conservation, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Menglun, Mengla, Yunnan 666303, P. R. China</mods:affiliation>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Zhou, Shi-Shun</mods:namePart>
<mods:affiliation>Center for Integrative Conservation, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Menglun, Mengla, Yunnan 666303, P. R. China</mods:affiliation>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Zhu, Xinxin</mods:namePart>
<mods:nameIdentifier type="ORCID">https://orcid.org/0000-0002-9252-7453</mods:nameIdentifier>
<mods:affiliation>College of Life Sciences, Xinyang Normal University, Xinyang, Henan, 464000, P. R. China</mods:affiliation>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Li, Ren</mods:namePart>
<mods:affiliation>Southeast Asia Biodiversity Research Institute, Chinese Academy of Sciences, Yezin, Nay Pyi Taw 05282, Myanmar</mods:affiliation>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Maw, Mya Bhone</mods:namePart>
<mods:affiliation>Southeast Asia Biodiversity Research Institute, Chinese Academy of Sciences, Yezin, Nay Pyi Taw 05282, Myanmar</mods:affiliation>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Tan, Yun-Hong</mods:namePart>
<mods:nameIdentifier type="ORCID">https://orcid.org/0000-0001-6238-2743</mods:nameIdentifier>
<mods:affiliation>Southeast Asia Biodiversity Research Institute, Chinese Academy of Sciences, Yezin, Nay Pyi Taw 05282, Myanmar &amp; Center for Integrative Conservation, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Menglun, Mengla, Yunnan 666303, P. R. China</mods:affiliation>
<mods:nameIdentifier type="email">tyh@xtbg.org.cn</mods:nameIdentifier>
</mods:name>
<mods:typeOfResource>text</mods:typeOfResource>
<mods:relatedItem type="host">
<mods:titleInfo>
<mods:title>PhytoKeys</mods:title>
</mods:titleInfo>
<mods:part>
<mods:date>2018</mods:date>
<mods:detail type="pubDate">
<mods:number>2018-01-29</mods:number>
</mods:detail>
<mods:detail type="volume">
<mods:number>94</mods:number>
</mods:detail>
<mods:extent unit="page">
<mods:start>13</mods:start>
<mods:end>22</mods:end>
</mods:extent>
</mods:part>
</mods:relatedItem>
<mods:location>
<mods:url>http://dx.doi.org/10.3897/phytokeys.94.21557</mods:url>
</mods:location>
<mods:classification>journal article</mods:classification>
<mods:identifier type="DOI">http://dx.doi.org/10.3897/phytokeys.94.21557</mods:identifier>
<mods:identifier type="Pensoft-Pub">1314-2003-94-13</mods:identifier>
<mods:identifier type="Pensoft-UUID">DE6F7053FFDC71657E48FF9AFFD2FFF6</mods:identifier>
<mods:identifier type="Zenodo-Dep">1166357</mods:identifier>
</mods:mods>
<treatment ID-GBIF-Taxon="182225392" LSID="urn:lsid:plazi:treatment:6C7238BD6722572C849F5F1D4A6334B3" httpUri="http://treatment.plazi.org/id/6C7238BD6722572C849F5F1D4A6334B3" lastPageId="2" lastPageNumber="15" pageId="1" pageNumber="14">
<subSubSection pageId="1" pageNumber="14" type="nomenclature">
<paragraph pageId="1" pageNumber="14">
<taxonomicName LSID="6C7238BD-6722-572C-849F-5F1D4A6334B3" authority="Y. H. Tan &amp; B. Yang" authorityName="Y. H. Tan &amp; B. Yang" authorityYear="2018" class="Magnoliopsida" family="Aristolochiaceae" genus="Aristolochia" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Aristolochia sinoburmanica" order="Piperales" pageId="1" pageNumber="14" phylum="Tracheophyta" rank="species" species="sinoburmanica" status="sp. nov.">Aristolochia sinoburmanica Y.H.Tan &amp; B.Yang</taxonomicName>
<taxonomicNameLabel pageId="1" pageNumber="14">sp. nov.</taxonomicNameLabel>
<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Aristolochia sinoburmanica Y. H. Tan &amp; B. Yang, sp. nov. A Habitat B Flowering branch C Flower (front view) D Anthers and gynostemium E Opened flower (showing the inside structure) F Opened flower (showing the inside structure). Illustration by Zhengmeng Yang." figureDoi="10.3897/phytokeys.94.21557.figure1" httpUri="https://binary.pensoft.net/fig/181782" pageId="1" pageNumber="14">Figures 1</figureCitation>
<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Aristolochia sinoburmanica Y. H. Tan &amp; B. Yang, sp. nov. A young branch and adaxial leaf B young branch and abaxial leaf C cymes on old woody stems D front view of preanthesis flower E front view of open flower F lateral view of open flower G lateral view of young flower H longitudinal section of flower I gynostemium, ovary and pedicel. (Photographed by Y. H. Tan, H. B. Ding &amp; B. Yang)." figureDoi="10.3897/phytokeys.94.21557.figure2" httpUri="https://binary.pensoft.net/fig/181783" pageId="1" pageNumber="14">, 2</figureCitation>
</paragraph>
</subSubSection>
<subSubSection pageId="1" pageNumber="14" type="diagnosis">
<paragraph pageId="1" pageNumber="14">Diagnosis.</paragraph>
<paragraph pageId="1" pageNumber="14">
<taxonomicName authorityName="Y. H. Tan &amp; B. Yang" authorityYear="2018" class="Magnoliopsida" family="Aristolochiaceae" genus="Aristolochia" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Aristolochia sinoburmanica" order="Piperales" pageId="1" pageNumber="14" phylum="Tracheophyta" rank="species" species="sinoburmanica">
<emphasis italics="true" pageId="1" pageNumber="14">Aristolochia sinoburmanica</emphasis>
</taxonomicName>
is morphologically similar to
<taxonomicName lsidName="A. hainanensis" pageId="1" pageNumber="14" rank="species" species="hainanensis">
<emphasis italics="true" pageId="1" pageNumber="14">A. hainanensis</emphasis>
</taxonomicName>
Merrill,
<taxonomicName lsidName="A. saccata" pageId="1" pageNumber="14" rank="species" species="saccata">
<emphasis italics="true" pageId="1" pageNumber="14">A. saccata</emphasis>
</taxonomicName>
Wallich,
<taxonomicName lsidName="A. xuanlienensis" pageId="1" pageNumber="14" rank="species" species="xuanlienensis">
<emphasis italics="true" pageId="1" pageNumber="14">A. xuanlienensis</emphasis>
</taxonomicName>
(
<bibRefCitation DOI="http://dx.doi.org/10.11646/phytotaxa.188.3.7" author="Huong, NTT" journalOrPublisher="Phytotaxa" pageId="3" pageNumber="16" pagination="176 - 180" refId="B8" refString="Huong, NTT, Hai, DV, Quang, BH, Cuong, NT, Khang, NS, Vu, DQ, Ma, JS, 2014. Aristolochia xuanlienensis, a new species of Aristolochiaceae from Vietnam. Phytotaxa 188: 176 - 180, DOI: http://dx.doi.org/10.11646/phytotaxa.188.3.7" title="Aristolochia xuanlienensis, a new species of Aristolochiaceae from Vietnam." url="http://dx.doi.org/10.11646/phytotaxa.188.3.7" volume="188" year="2014">Huong et al. 2014</bibRefCitation>
),
<taxonomicName lsidName="A. faviogonzalezii" pageId="1" pageNumber="14" rank="species" species="faviogonzalezii">
<emphasis italics="true" pageId="1" pageNumber="14">A. faviogonzalezii</emphasis>
</taxonomicName>
T. V. Do, S. Wanke &amp; C. Neinhuis and
<taxonomicName lsidName="A. tonkinensis" pageId="1" pageNumber="14" rank="species" species="tonkinensis">
<emphasis italics="true" pageId="1" pageNumber="14">A. tonkinensis</emphasis>
</taxonomicName>
T.V. Do &amp; S. Wanke from Vietnam (
<bibRefCitation DOI="https://doi.org/10.1600/036364415X689140" author="Do, TV" journalOrPublisher="Systematic Botany" pageId="3" pageNumber="16" pagination="671 - 691" refId="B1" refString="Do, TV, Luu, TH, Wanke, S, Neinhuis, C, 2015a. Three new species and three new records of Aristolochia subgenus Siphisia from Vietnam including a key to the Asian species. Systematic Botany 40: 671 - 691, DOI: https://doi.org/10.1600/036364415X689140" title="Three new species and three new records of Aristolochia subgenus Siphisia from Vietnam including a key to the Asian species." url="https://doi.org/10.1600/036364415X689140" volume="40" year="2015 a">Do et al. 2015a</bibRefCitation>
), but is distinguishable from these species by the following diagnostic characters: leaf blade ovate or ovate-lanceolate to narrowly ovate, subcoriaceous, base rounded to slightly cordate; cyme solitary on old woody stems and young branches, each cyme with 1-2 flowers; perianth claret (deep purple red), outside densely brown hirsute with parallel dark purple veins, 6.5-7.5 cm high; tube horseshoe-shaped, 8.3-8.5 cm, uniformly claret (deep purple red), with visible dark purple veins, limb trumpet-shaped, 4.2-4.8 cm high, 4-4.4 cm wide, 3-lobed, lobes subequal; throat deep purple red, glabrous. The summary and main characters comparison is presented in Table
<tableCitation captionStart="Table 1" captionStartId="T1" captionText="Table 1. Morphological comparison of key characters and distribution in A. sinoburmanica and its similar taxa." httpUri="http://table.plazi.org/id/D91A7B3C1DE870853AA4D1C94AC44C53" pageId="1" pageNumber="14" tableUuid="D91A7B3C1DE870853AA4D1C94AC44C53">1</tableCitation>
.
</paragraph>
<caption ID-Table-UUID="D91A7B3C1DE870853AA4D1C94AC44C53" httpUri="http://table.plazi.org/id/D91A7B3C1DE870853AA4D1C94AC44C53" pageId="1" pageNumber="14" start="Table 1" startId="T1">
<paragraph pageId="1" pageNumber="14">
<emphasis bold="true" pageId="1" pageNumber="14">Table 1.</emphasis>
Morphological comparison of key characters and distribution in
<taxonomicName lsidName="A. sinoburmanica" pageId="1" pageNumber="14" rank="species" species="sinoburmanica">
<emphasis italics="true" pageId="1" pageNumber="14">A. sinoburmanica</emphasis>
</taxonomicName>
and its similar taxa.
</paragraph>
</caption>
<paragraph pageId="1" pageNumber="14">
<table pageId="1" pageNumber="14">
<tr pageId="1" pageNumber="14">
<th colspan="1" pageId="1" pageNumber="14" rowspan="1">Character</th>
<th colspan="1" pageId="1" pageNumber="14" rowspan="1">
<taxonomicName lsidName="A. sinoburmanica" pageId="1" pageNumber="14" rank="species" species="sinoburmanica">
<emphasis italics="true" pageId="1" pageNumber="14">A. sinoburmanica</emphasis>
</taxonomicName>
</th>
<th colspan="1" pageId="1" pageNumber="14" rowspan="1">
<taxonomicName lsidName="A. faviogonzalezii" pageId="1" pageNumber="14" rank="species" species="faviogonzalezii">
<emphasis italics="true" pageId="1" pageNumber="14">A. faviogonzalezii</emphasis>
</taxonomicName>
</th>
<th colspan="1" pageId="1" pageNumber="14" rowspan="1">
<taxonomicName lsidName="A. hainanensis" pageId="1" pageNumber="14" rank="species" species="hainanensis">
<emphasis italics="true" pageId="1" pageNumber="14">A. hainanensis</emphasis>
</taxonomicName>
</th>
<th colspan="1" pageId="1" pageNumber="14" rowspan="1">
<taxonomicName lsidName="A. tonkinensis" pageId="1" pageNumber="14" rank="species" species="tonkinensis">
<emphasis italics="true" pageId="1" pageNumber="14">A. tonkinensis</emphasis>
</taxonomicName>
</th>
<th colspan="1" pageId="1" pageNumber="14" rowspan="1">
<taxonomicName lsidName="A. saccata" pageId="1" pageNumber="14" rank="species" species="saccata">
<emphasis italics="true" pageId="1" pageNumber="14">A. saccata</emphasis>
</taxonomicName>
</th>
<th colspan="1" pageId="1" pageNumber="14" rowspan="1">
<taxonomicName lsidName="A. xuanlienensis" pageId="1" pageNumber="14" rank="species" species="xuanlienensis">
<emphasis italics="true" pageId="1" pageNumber="14">A. xuanlienensis</emphasis>
</taxonomicName>
</th>
</tr>
<tr pageId="1" pageNumber="14">
<td colspan="1" pageId="1" pageNumber="14" rowspan="1">Leaf blade</td>
<td colspan="1" pageId="1" pageNumber="14" rowspan="1">ovate or ovate-lanceolate to narrowly ovate</td>
<td colspan="1" pageId="1" pageNumber="14" rowspan="1">broadly ovate to cordate</td>
<td colspan="1" pageId="1" pageNumber="14" rowspan="1">ovate to ovate-lanceolate</td>
<td colspan="1" pageId="1" pageNumber="14" rowspan="1">ovate to broadly-ovate</td>
<td colspan="1" pageId="1" pageNumber="14" rowspan="1">ovate-oblong to ovate-lanceolate</td>
<td colspan="1" pageId="1" pageNumber="14" rowspan="1">ovate or lanceolate-ovate to narrowly ovate</td>
</tr>
<tr pageId="1" pageNumber="14">
<td colspan="1" pageId="1" pageNumber="14" rowspan="1">Leaf base</td>
<td colspan="1" pageId="1" pageNumber="14" rowspan="1">rounded to slightly cordate</td>
<td colspan="1" pageId="1" pageNumber="14" rowspan="1">slightly to deeply cordate</td>
<td colspan="1" pageId="1" pageNumber="14" rowspan="1">cuneate to rounded</td>
<td colspan="1" pageId="1" pageNumber="14" rowspan="1">rounded to truncate</td>
<td colspan="1" pageId="1" pageNumber="14" rowspan="1">cordate</td>
<td colspan="1" pageId="1" pageNumber="14" rowspan="1">rounded</td>
</tr>
<tr pageId="1" pageNumber="14">
<td colspan="1" pageId="1" pageNumber="14" rowspan="1">Inflorescence</td>
<td colspan="1" pageId="1" pageNumber="14" rowspan="1">cyme solitary on old woody stems and young branches, each cyme with1-2 flowers</td>
<td colspan="1" pageId="1" pageNumber="14" rowspan="1">cluster of 6-8(-10) cymes at each node on old woody stem, each cyme with 3-4 flowers</td>
<td colspan="1" pageId="1" pageNumber="14" rowspan="1">cyme in axils of leafy shoots or on old woody stems, with 3-6 flowers</td>
<td colspan="1" pageId="1" pageNumber="14" rowspan="1">cyme solitary on old woody stems and young branches with 3-4 flowers</td>
<td colspan="1" pageId="1" pageNumber="14" rowspan="1">cluster of 2-3 cymes at each node on old woody stems, each cyme with 3-5 flowers</td>
<td colspan="1" pageId="1" pageNumber="14" rowspan="1">cyme usually in axils of leafy shoots or on old woody stems, 3-4(-5) flowers</td>
</tr>
<tr pageId="1" pageNumber="14">
<td colspan="1" pageId="1" pageNumber="14" rowspan="1">Perianth</td>
<td colspan="1" pageId="1" pageNumber="14" rowspan="1">claret (deep purple red), outside densely brown hirsute with parallel dark purple veins, 6.5-7.5 cm high</td>
<td colspan="1" pageId="1" pageNumber="14" rowspan="1">yellowish-white with parallel dark purple veins or dots, 3.5-5 cm high</td>
<td colspan="1" pageId="1" pageNumber="14" rowspan="1">yellowish with obscure purplish veins</td>
<td colspan="1" pageId="1" pageNumber="14" rowspan="1">outside white, densely villous with parallel purple veins, 3.2-3.5 cm high</td>
<td colspan="1" pageId="1" pageNumber="14" rowspan="1">white with purple reticulate veins</td>
<td colspan="1" pageId="1" pageNumber="14" rowspan="1">white with light purple veins outside and dark purple spots, 4.5-4.8 cm high</td>
</tr>
<tr pageId="1" pageNumber="14">
<td colspan="1" pageId="1" pageNumber="14" rowspan="1">Limb</td>
<td colspan="1" pageId="1" pageNumber="14" rowspan="1">discoid-rotund or trumpet-shaped, 4.2-4.8 cm high, 4-4.4 cm wide, 3-lobed, lobes subequal, dark purple, densely covered with dark purple warts</td>
<td colspan="1" pageId="1" pageNumber="14" rowspan="1">trumpet-shaped, nearly rectangular, 2.4-2.6 cm high, 1.8-2 cm wide, 3-lobed, lobes unequal, dark purple, warty on inner surface</td>
<td colspan="1" pageId="1" pageNumber="14" rowspan="1">obliquely trumpet-shaped, nearly circular, 2.2-2.5 cm wide, 3-lobed, lobes unequal, purple, densely dark purple warts</td>
<td colspan="1" pageId="1" pageNumber="14" rowspan="1">trumpet-shaped, nearly rectangular, 1.2-1.3 cm high, 0.9-1.0 cm wide, 3-lobed, lobes unequal, dark purple, densely covered with dark purple bristles</td>
<td colspan="1" pageId="1" pageNumber="14" rowspan="1">obliquely trumpet-shaped, nearly circular, 1.8-2 cm wide, 3-lobed, lobes unequal, upper 2 distinctly recurved, deltoid, lower one broadly deltoid, covered with purple warts</td>
<td colspan="1" pageId="1" pageNumber="14" rowspan="1">trumpet-shaped, ca. 2.5 cm wide, 3-lobed, lobes subequal, fused with margins of all lobes strongly revolute, densely covered with purple papillate</td>
</tr>
<tr pageId="1" pageNumber="14">
<td colspan="1" pageId="1" pageNumber="14" rowspan="1">Throat</td>
<td colspan="1" pageId="1" pageNumber="14" rowspan="1">deep purple red, glabrous</td>
<td colspan="1" pageId="1" pageNumber="14" rowspan="1">upper half white with dark purple dots and lower half pinkish without visible dots</td>
<td colspan="1" pageId="1" pageNumber="14" rowspan="1">yellow, without visible dots</td>
<td colspan="1" pageId="1" pageNumber="14" rowspan="1">white, without visible dots</td>
<td colspan="1" pageId="1" pageNumber="14" rowspan="1">yellow, without visible dots</td>
<td colspan="1" pageId="1" pageNumber="14" rowspan="1">white, densely covered with purple dots</td>
</tr>
<tr pageId="1" pageNumber="14">
<td colspan="1" pageId="1" pageNumber="14" rowspan="1">Distribution</td>
<td colspan="1" pageId="1" pageNumber="14" rowspan="1">China, Myanmar</td>
<td colspan="1" pageId="1" pageNumber="14" rowspan="1">Vietnam</td>
<td colspan="1" pageId="1" pageNumber="14" rowspan="1">China, Vietnam</td>
<td colspan="1" pageId="1" pageNumber="14" rowspan="1">Vietnam</td>
<td colspan="1" pageId="1" pageNumber="14" rowspan="1">China, Bhutan, NE India, Myanmar, Nepal</td>
<td colspan="1" pageId="1" pageNumber="14" rowspan="1">Southern Vietnam</td>
</tr>
</table>
</paragraph>
</subSubSection>
<subSubSection pageId="1" pageNumber="14" type="materials_examined">
<paragraph pageId="1" pageNumber="14">
<typeStatus>Type</typeStatus>
.
</paragraph>
<paragraph pageId="1" pageNumber="14">
<materialsCitation collectingDate="2017-05-11" country="MYANMAR" county="Putao" elevation="900" latitude="27.646847" location="Hkakaborazi National Park" longLatPrecision="1" longitude="97.90045" municipality="Shinshanku" specimenCount="1" stateProvince="Kachin State" typeStatus="holotype">
<collectingCountry name="Myanmar">MYANMAR</collectingCountry>
.
<collectingRegion country="Myanmar" name="Kachin">Kachin State</collectingRegion>
:
<collectingCounty>Putao</collectingCounty>
, near
<collectingMunicipality>Shinshanku</collectingMunicipality>
, on the roadside slope of a mountain range bordering the zone of
<location LSID="urn:lsid:plazi:treatment:6C7238BD6722572C849F5F1D4A6334B3:5D64F44B51584A8A8DB4ABC1F9583F86" country="MYANMAR" county="Putao" latitude="27.646847" longLatPrecision="1" longitude="97.90045" municipality="Shinshanku" name="Hkakaborazi National Park" stateProvince="Kachin State">Hkakaborazi National Park</location>
, perennial lianas under tropical mountain broadleaf forest,
<geoCoordinate degrees="27" direction="north" minutes="38" orientation="latitude" precision="1" seconds="48.65" value="27.646847">27°38'48.65&quot;N</geoCoordinate>
,
<geoCoordinate degrees="97" direction="east" minutes="54" orientation="longitude" precision="1" seconds="01.61" value="97.90045">97°54'01.61&quot;E</geoCoordinate>
,
<elevation metricMagnitude="2" metricUnit="m" metricValue="9.0" unit="m" value="900.0">
<quantity metricMagnitude="2" metricUnit="m" metricValue="9.0" unit="m" value="900.0">900 m</quantity>
a.s.l.
</elevation>
,
<collectingDate value="2017-05-11">11 May 2017</collectingDate>
,
<emphasis italics="true" pageId="1" pageNumber="14">Myanmar Exped. 1532</emphasis>
(
<typeStatus>holotype</typeStatus>
HITBC!)
</materialsCitation>
.
</paragraph>
<caption ID-Zenodo-Dep="1166712" doi="10.3897/phytokeys.94.21557.figure1" httpUri="https://binary.pensoft.net/fig/181782" pageId="1" pageNumber="14" start="Figure 1" startId="F1">
<paragraph pageId="1" pageNumber="14">
<emphasis bold="true" pageId="1" pageNumber="14">Figure 1.</emphasis>
<taxonomicName authorityName="Y. H. Tan &amp; B. Yang" authorityYear="2018" class="Magnoliopsida" family="Aristolochiaceae" genus="Aristolochia" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Aristolochia sinoburmanica" order="Piperales" pageId="1" pageNumber="14" phylum="Tracheophyta" rank="species" species="sinoburmanica">
<emphasis italics="true" pageId="1" pageNumber="14">Aristolochia sinoburmanica</emphasis>
</taxonomicName>
Y.H.Tan &amp; B.Yang, sp. nov.
<emphasis bold="true" pageId="1" pageNumber="14">A</emphasis>
Habitat
<emphasis bold="true" pageId="1" pageNumber="14">B</emphasis>
Flowering branch
<emphasis bold="true" pageId="1" pageNumber="14">C</emphasis>
Flower (front view)
<emphasis bold="true" pageId="1" pageNumber="14">D</emphasis>
Anthers and gynostemium
<emphasis bold="true" pageId="1" pageNumber="14">E</emphasis>
Opened flower (showing the inside structure)
<emphasis bold="true" pageId="1" pageNumber="14">F</emphasis>
Opened flower (showing the inside structure). Illustration by Zhengmeng Yang.
</paragraph>
</caption>
</subSubSection>
<subSubSection lastPageId="2" lastPageNumber="15" pageId="1" pageNumber="14" type="description">
<paragraph pageId="1" pageNumber="14">Description.</paragraph>
<paragraph lastPageId="2" lastPageNumber="15" pageId="1" pageNumber="14">
Perennial woody liana, 8-12 m high. Stem terete, circular in cross section, ca. 1 cm in diam., young branches green, sparsely pubescent, becoming glabrescent, bark deeply irregularly longitudinally fissured when mature, internodes 7-15 cm long. Petiole 3.5-6.0 cm long, twisted, pubescent. Leaf blade ovate or ovate-lanceolate to narrowly ovate, subcoriaceous, 15-31.5
<normalizedToken originalValue="×">x</normalizedToken>
5.8-12.5 cm, base rounded to slightly cordate, apex acuminate, margin entire, both surfaces densely villous when young, then the adaxial surface dark-green and glabrous, the abaxial surface densely villous; basal veins five, palmate, secondary veins four to six pairs, pinnate; tertiary veins coarsely reticulate, slightly sunken adaxially, prominent abaxially. Inflorescence cymose on old woody stems and young branches, solitary or two cymes, each cyme with one or two flowers, clearly separated from each other. Inflorescence axis 2-6 mm long, tomentose. Bracteole clasping the axis, ovate-triangular, 2-4.5
<normalizedToken originalValue="×">x</normalizedToken>
1.5-2 mm, subsessile, both surfaces densely brown villous. Pedicel 1.3-1.6 cm long, pendulous, densely brown villous. Ovary oblong, 1.5-1.7
<normalizedToken originalValue="×">x</normalizedToken>
0.3-0.4 cm, densely brown villous. Perianth horseshoe-shaped (in lateral view), 6.5-7.5 cm high, claret (deep purple red),
<pageBreakToken pageId="2" pageNumber="15" start="start">outside</pageBreakToken>
densely brown hirsute with parallel dark purple veins, inside glabrous to white villous. Utricle distinct from the tube, bell-shaped, 2.3-2.5 cm high, 1.2-1.3 cm in diam. at base, 1.6-1.8 cm in diam. at apex, inside vinaceous (purplish red) with densely white trichomes. Tube horseshoe-shaped, 8.3-8.5 cm, uniformly claret (deep purple red), with visible dark purple veins, lower tube strongly inflated, saccate, 2.5-2.7 cm high, 1.8-2.0 cm in diam. and upper tube obliquely shortened funnel-shaped, parallel to the utricle, inner surface stramineous dyed with purple red patches, 3-3.5 cm high, narrower at base, 1-1.1 cm in diam. and broader at apex, 1.3-1.4 cm in diam. Limb discoid-rotund or trumpet-shaped, 4.2-4.8 cm high, 4-4.4 cm wide, with three subequal lobes, valvate preanthesis, lobes broadly ovate-triangular, each 3.3-3.8 cm wide, 1.8-2.2 cm high, margins of all lobes revolute during anthesis, warty on inner surface of lobes dark purple. Throat deep purple red, glabrous, without dots. Annulus present. Gynostemium with trilobed stigma on top, 7-7.5
<normalizedToken originalValue="×">x</normalizedToken>
5.5-6.5 mm in diam., anthers 6 in 3 pairs, oblong, 4.3-4.5
<normalizedToken originalValue="×">x</normalizedToken>
1.2-1.4 mm, yellow. Fruit and seeds were not seen.
</paragraph>
</subSubSection>
<subSubSection pageId="2" pageNumber="15" type="phenology">
<paragraph pageId="2" pageNumber="15">Phenology.</paragraph>
<paragraph pageId="2" pageNumber="15">Flowering specimens have been collected in May but it is possible that flowering begins in April and fruiting may be from July to August.</paragraph>
</subSubSection>
<subSubSection pageId="2" pageNumber="15" type="etymology">
<paragraph pageId="2" pageNumber="15">Etymology.</paragraph>
<paragraph pageId="2" pageNumber="15">The species epithet refers to the type locality in Myanmar and adjacent regions of China. It also shows that the two countries are friendly neighbours, their friendship being retained over a long period and also expresses our appreciation for the whole-hearted cooperation amongst members of the China-Myanmar joint expedition.</paragraph>
</subSubSection>
<subSubSection pageId="2" pageNumber="15" type="distribution">
<paragraph pageId="2" pageNumber="15">Distribution and habitat.</paragraph>
<paragraph pageId="2" pageNumber="15">
<taxonomicName authorityName="Y. H. Tan &amp; B. Yang" authorityYear="2018" class="Magnoliopsida" family="Aristolochiaceae" genus="Aristolochia" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Aristolochia sinoburmanica" order="Piperales" pageId="2" pageNumber="15" phylum="Tracheophyta" rank="species" species="sinoburmanica">
<emphasis italics="true" pageId="2" pageNumber="15">Aristolochia sinoburmanica</emphasis>
</taxonomicName>
is hitherto known from the type locality of Putao, Kachin state in north Myanmar and adjacent regions of Gongshan County, northwest Yunnan, southwest China, where, according to one sheet of the specimen deposited in KUN, it is a perennial liana which grows under the montane broadleaf forests, at an elevation of ca. 900-1400 m.
</paragraph>
</subSubSection>
<subSubSection pageId="2" pageNumber="15" type="preliminary conservation status">
<paragraph pageId="2" pageNumber="15">Preliminary conservation status.</paragraph>
<paragraph pageId="2" pageNumber="15">
In Nov. 2014, the China-Myanmar joint expedition conducted the first field investigation of plant diversity along the same route in north Myanmar, within the area which included the type locality of this new species. The path through the mountains could only be accessed by foot, but in the most recent expedition in May 2017, with the development of road construction, most of the trees and habitats have been destroyed.
<taxonomicName lsidName="A. sinoburmanica" pageId="2" pageNumber="15" rank="species" species="sinoburmanica">
<emphasis italics="true" pageId="2" pageNumber="15">A. sinoburmanica</emphasis>
</taxonomicName>
is known from a single population on the roadside. In fact, during the present study, only two healthy individuals were located growing about 20m apart from each other. Therefore, the new species is assigned a preliminary status of vulnerable (VU) according to the IUCN Red List Categories (
<bibRefCitation author="IUCN" journalOrPublisher="24. Science Press, Beijing" pageId="3" pageNumber="16" refId="B11" 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>
). However, since very few details exist about its natural distribution, a detailed investigation of the same habitats may identify more populations and individuals of this new species. The lack of sufficient data currently does not allow a final risk evaluation and the species might be regarded as data deficient (DD). Further field surveys in northern Myanmar are needed to gain more information on its distribution.
</paragraph>
<caption ID-Zenodo-Dep="1166714" doi="10.3897/phytokeys.94.21557.figure2" httpUri="https://binary.pensoft.net/fig/181783" pageId="2" pageNumber="15" start="Figure 2" startId="F2">
<paragraph pageId="2" pageNumber="15">
<emphasis bold="true" pageId="2" pageNumber="15">Figure 2.</emphasis>
<taxonomicName authorityName="Y. H. Tan &amp; B. Yang" authorityYear="2018" class="Magnoliopsida" family="Aristolochiaceae" genus="Aristolochia" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Aristolochia sinoburmanica" order="Piperales" pageId="2" pageNumber="15" phylum="Tracheophyta" rank="species" species="sinoburmanica">
<emphasis italics="true" pageId="2" pageNumber="15">Aristolochia sinoburmanica</emphasis>
</taxonomicName>
Y.H.Tan &amp; B.Yang, sp. nov.
<emphasis bold="true" pageId="2" pageNumber="15">A</emphasis>
young branch and adaxial leaf
<emphasis bold="true" pageId="2" pageNumber="15">B</emphasis>
young branch and abaxial leaf
<emphasis bold="true" pageId="2" pageNumber="15">C</emphasis>
cymes on old woody stems
<emphasis bold="true" pageId="2" pageNumber="15">D</emphasis>
front view of preanthesis flower
<emphasis bold="true" pageId="2" pageNumber="15">E</emphasis>
front view of open flower
<emphasis bold="true" pageId="2" pageNumber="15">F</emphasis>
lateral view of open flower
<emphasis bold="true" pageId="2" pageNumber="15">G</emphasis>
lateral view of young flower
<emphasis bold="true" pageId="2" pageNumber="15">H</emphasis>
longitudinal section of flower
<emphasis bold="true" pageId="2" pageNumber="15">I</emphasis>
gynostemium, ovary and pedicel. (Photographed by Y. H. Tan, H. B. Ding &amp; B. Yang).
</paragraph>
</caption>
</subSubSection>
<subSubSection pageId="2" pageNumber="15" type="materials_examined">
<paragraph pageId="2" pageNumber="15">Additional specimens examined.</paragraph>
<paragraph pageId="2" pageNumber="15">
<materialsCitation collectingDate="1959-11-12" collectorName="G. M. Feng." country="China" elevation="1400" latitude="27.697723" location="Dulong River" longLatPrecision="1" longitude="98.319786" municipality="Gongshan" specimenCount="1" stateProvince="Yunnan">
<collectingCountry name="China">China</collectingCountry>
.
<collectingRegion country="China" name="Yunnan">Yunnan</collectingRegion>
:
<collectingMunicipality>Gongshan</collectingMunicipality>
, east of
<location LSID="urn:lsid:plazi:treatment:6C7238BD6722572C849F5F1D4A6334B3:BA4E646DE65466B61C74C1713CB9B80E" country="China" latitude="27.697723" longLatPrecision="1" longitude="98.319786" municipality="Gongshan" name="Dulong River" stateProvince="Yunnan">Dulong River</location>
,
<geoCoordinate degrees="27" direction="north" minutes="41" orientation="latitude" precision="1" seconds="51.81" value="27.697723">27°41'51.81&quot;N</geoCoordinate>
,
<geoCoordinate degrees="98" direction="east" minutes="19" orientation="longitude" precision="1" seconds="11.22" value="98.319786">98°19'11.22&quot;E</geoCoordinate>
,
<elevation metricMagnitude="3" metricUnit="m" metricValue="1.4" unit="m" value="1400.0">
<quantity metricMagnitude="3" metricUnit="m" metricValue="1.4" unit="m" value="1400.0">1400 m</quantity>
a.s.l.
</elevation>
,
<collectingDate value="1959-11-12">12 Nov. 1959</collectingDate>
,
<emphasis italics="true" pageId="2" pageNumber="15">
<collectorName>G.M. Feng.</collectorName>
24217
</emphasis>
(KUN, No. 0163232)
</materialsCitation>
.
</paragraph>
</subSubSection>
<subSubSection pageId="2" pageNumber="15" type="key">
<paragraph pageId="2" pageNumber="15">
Key to the species of
<taxonomicName authorityName="Y. H. Tan &amp; B. Yang" authorityYear="2018" class="Magnoliopsida" family="Aristolochiaceae" genus="Aristolochia" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Aristolochia sinoburmanica" order="Piperales" pageId="2" pageNumber="15" phylum="Tracheophyta" rank="species" species="sinoburmanica">
<emphasis italics="true" pageId="2" pageNumber="15">Aristolochia sinoburmanica</emphasis>
</taxonomicName>
and closely related species
</paragraph>
<paragraph pageId="2" pageNumber="15">
<table inLine="true" pageId="2" pageNumber="15">
<tr pageId="2" pageNumber="15">
<td colspan="1" pageId="2" pageNumber="15" rowspan="1">1</td>
<td colspan="1" pageId="2" pageNumber="15" rowspan="1">Perianth claret (deep purple red), outside densely brown hirsute with parallel dark purple veins</td>
<td colspan="1" pageId="2" pageNumber="15" rowspan="1">
<taxonomicName lsidName="A. sinoburmanica" pageId="2" pageNumber="15" rank="species" species="sinoburmanica">
<emphasis bold="true" italics="true" pageId="2" pageNumber="15">A. sinoburmanica</emphasis>
</taxonomicName>
</td>
</tr>
<tr pageId="2" pageNumber="15">
<td colspan="1" pageId="2" pageNumber="15" rowspan="1">-</td>
<td colspan="1" pageId="2" pageNumber="15" rowspan="1">Perianth yellowish, yellowish-white or white with purple to dark purple veins or dots</td>
<td colspan="1" pageId="2" pageNumber="15" rowspan="1">
<emphasis bold="true" pageId="2" pageNumber="15">2</emphasis>
</td>
</tr>
<tr pageId="2" pageNumber="15">
<td colspan="1" pageId="2" pageNumber="15" rowspan="1">2</td>
<td colspan="1" pageId="2" pageNumber="15" rowspan="1">Leaf base slightly to deeply cordate</td>
<td colspan="1" pageId="2" pageNumber="15" rowspan="1">
<emphasis bold="true" pageId="2" pageNumber="15">3</emphasis>
</td>
</tr>
<tr pageId="2" pageNumber="15">
<td colspan="1" pageId="2" pageNumber="15" rowspan="1">-</td>
<td colspan="1" pageId="2" pageNumber="15" rowspan="1">Leaf base round, cuneate to rounded or rounded to truncate</td>
<td colspan="1" pageId="2" pageNumber="15" rowspan="1">
<emphasis bold="true" pageId="2" pageNumber="15">4</emphasis>
</td>
</tr>
<tr pageId="2" pageNumber="15">
<td colspan="1" pageId="2" pageNumber="15" rowspan="1">3</td>
<td colspan="1" pageId="2" pageNumber="15" rowspan="1">Leaf blade broadly ovate to cordate</td>
<td colspan="1" pageId="2" pageNumber="15" rowspan="1">
<taxonomicName lsidName="A. faviogonzalezii" pageId="2" pageNumber="15" rank="species" species="faviogonzalezii">
<emphasis bold="true" italics="true" pageId="2" pageNumber="15">A. faviogonzalezii</emphasis>
</taxonomicName>
</td>
</tr>
<tr pageId="2" pageNumber="15">
<td colspan="1" pageId="2" pageNumber="15" rowspan="1">-</td>
<td colspan="1" pageId="2" pageNumber="15" rowspan="1">Leaf blade ovate-oblong to ovate-lanceolate</td>
<td colspan="1" pageId="2" pageNumber="15" rowspan="1">
<taxonomicName lsidName="A. saccata" pageId="2" pageNumber="15" rank="species" species="saccata">
<emphasis bold="true" italics="true" pageId="2" pageNumber="15">A. saccata</emphasis>
</taxonomicName>
</td>
</tr>
<tr pageId="2" pageNumber="15">
<td colspan="1" pageId="2" pageNumber="15" rowspan="1">4</td>
<td colspan="1" pageId="2" pageNumber="15" rowspan="1">Throat yellow</td>
<td colspan="1" pageId="2" pageNumber="15" rowspan="1">
<taxonomicName lsidName="A. hainanensis" pageId="2" pageNumber="15" rank="species" species="hainanensis">
<emphasis bold="true" italics="true" pageId="2" pageNumber="15">A. hainanensis</emphasis>
</taxonomicName>
</td>
</tr>
<tr pageId="2" pageNumber="15">
<td colspan="1" pageId="2" pageNumber="15" rowspan="1">-</td>
<td colspan="1" pageId="2" pageNumber="15" rowspan="1">Throat white</td>
<td colspan="1" pageId="2" pageNumber="15" rowspan="1">
<emphasis bold="true" pageId="2" pageNumber="15">5</emphasis>
</td>
</tr>
<tr pageId="2" pageNumber="15">
<td colspan="1" pageId="2" pageNumber="15" rowspan="1">5</td>
<td colspan="1" pageId="2" pageNumber="15" rowspan="1">Limb 3-lobed, lobes unequal, throat without visible dots</td>
<td colspan="1" pageId="2" pageNumber="15" rowspan="1">
<taxonomicName lsidName="A. tonkinensis" pageId="2" pageNumber="15" rank="species" species="tonkinensis">
<emphasis bold="true" italics="true" pageId="2" pageNumber="15">A. tonkinensis</emphasis>
</taxonomicName>
</td>
</tr>
<tr pageId="2" pageNumber="15">
<td colspan="1" pageId="2" pageNumber="15" rowspan="1">-</td>
<td colspan="1" pageId="2" pageNumber="15" rowspan="1">Limb 3-lobed, lobes subequal, throat densely covered with purple dots</td>
<td colspan="1" pageId="2" pageNumber="15" rowspan="1">
<taxonomicName lsidName="A. xuanlienensis" pageId="2" pageNumber="15" rank="species" species="xuanlienensis">
<emphasis bold="true" italics="true" pageId="2" pageNumber="15">A. xuanlienensis</emphasis>
</taxonomicName>
</td>
</tr>
</table>
</paragraph>
</subSubSection>
</treatment>
</document>
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