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<document ID-DOI="http://dx.doi.org/10.3897/phytokeys.225.100646" ID-Pensoft-Pub="1314-2003-225-199" ID-Pensoft-UUID="4DC500BA4E7D56D5A5FAE1C431DDDE74" ModsDocID="1314-2003-225-199" checkinTime="1683131508409" checkinUser="pensoft" docAuthor="Zhang, Mao-Lin, He, Yi &amp; Liu, Quan-Ru" docDate="2023" docId="4B08EF658DC3503AAEC0BAB7CC79B2B4" docLanguage="en" docName="PhytoKeys 225: 199-209" docOrigin="PhytoKeys 225" docPubDate="2023-05-02" docSource="http://dx.doi.org/10.3897/phytokeys.225.100646" docTitle="Argyreia subrotunda Q. R. Liu &amp; M. L. Zhang 2023, sp. nov." docType="treatment" docVersion="2" id="4DC500BA4E7D56D5A5FAE1C431DDDE74" lastPageNumber="199" masterDocId="4DC500BA4E7D56D5A5FAE1C431DDDE74" masterDocTitle="A new species of Argyreia (Convolvulaceae) from Yunnan, China" masterLastPageNumber="209" masterPageNumber="199" pageNumber="199" updateTime="1683131810030" updateUser="ExternalLinkService">
<mods:mods xmlns:mods="http://www.loc.gov/mods/v3">
<mods:titleInfo>
<mods:title>A new species of Argyreia (Convolvulaceae) from Yunnan, China</mods:title>
</mods:titleInfo>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Zhang, Mao-Lin</mods:namePart>
<mods:nameIdentifier type="ORCID">https://orcid.org/0000-0002-6981-8084</mods:nameIdentifier>
<mods:affiliation>Key Laboratory of Biodiversity Science and Ecological Engineering, Ministry of Education, College of Life Sciences, Beijing Normal University, Beijing 100875, China</mods:affiliation>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>He, Yi</mods:namePart>
<mods:nameIdentifier type="ORCID">https://orcid.org/0000-0002-6925-7299</mods:nameIdentifier>
<mods:affiliation>Key Laboratory of Biodiversity Science and Ecological Engineering, Ministry of Education, College of Life Sciences, Beijing Normal University, Beijing 100875, China</mods:affiliation>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Liu, Quan-Ru</mods:namePart>
<mods:nameIdentifier type="ORCID">https://orcid.org/0000-0003-4270-4746</mods:nameIdentifier>
<mods:affiliation>Key Laboratory of Biodiversity Science and Ecological Engineering, Ministry of Education, College of Life Sciences, Beijing Normal University, Beijing 100875, China</mods:affiliation>
<mods:nameIdentifier type="email">liuquanru@bnu.edu.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>2023</mods:date>
<mods:detail type="pubDate">
<mods:number>2023-05-02</mods:number>
</mods:detail>
<mods:detail type="volume">
<mods:number>225</mods:number>
</mods:detail>
<mods:extent unit="page">
<mods:start>199</mods:start>
<mods:end>209</mods:end>
</mods:extent>
</mods:part>
</mods:relatedItem>
<mods:location>
<mods:url>http://dx.doi.org/10.3897/phytokeys.225.100646</mods:url>
</mods:location>
<mods:classification>journal article</mods:classification>
<mods:identifier type="DOI">http://dx.doi.org/10.3897/phytokeys.225.100646</mods:identifier>
<mods:identifier type="Pensoft-Pub">1314-2003-225-199</mods:identifier>
<mods:identifier type="Pensoft-UUID">4DC500BA4E7D56D5A5FAE1C431DDDE74</mods:identifier>
</mods:mods>
<treatment LSID="urn:lsid:plazi:treatment:4B08EF658DC3503AAEC0BAB7CC79B2B4" httpUri="http://treatment.plazi.org/id/4B08EF658DC3503AAEC0BAB7CC79B2B4" lastPageNumber="199" pageId="0" pageNumber="199">
<subSubSection pageId="0" pageNumber="199" type="nomenclature">
<paragraph pageId="0" pageNumber="199">
<taxonomicName LSID="4B08EF65-8DC3-503A-AEC0-BAB7CC79B2B4" authority="Q. R. Liu &amp; M. L. Zhang" authorityName="Q. R. Liu &amp; M. L. Zhang" authorityYear="2023" class="Magnoliopsida" family="Convolvulaceae" genus="Argyreia" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Argyreia subrotunda" order="Solanales" pageId="0" pageNumber="199" phylum="Tracheophyta" rank="species" species="subrotunda" status="sp. nov.">Argyreia subrotunda Q.R.Liu &amp; M.L.Zhang</taxonomicName>
<taxonomicNameLabel pageId="0" pageNumber="199">sp. nov.</taxonomicNameLabel>
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="199" type="description">
<paragraph pageId="0" pageNumber="199">
<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Argyreia subrotunda Q. R. Liu &amp; M. L. Zhang, sp. nov. A stem with leaves and inflorescences B bract (outside) C bract (inside) D sepals from outer (left) to innermost (right) E opened corolla showing mid-petaline bands F opened corolla with stamens G pistil H fruit with persistent sepals I seed (adaxial surface) J seed (lateral surface). All drawn by Quan-Ru Liu from voucher specimens M. L. Zhang BNU 2021 YN 074 (BNU!) (A-G), X. B. Guo BNU 2021 YN 081 (BNU!) (H-J)." figureDoi="10.3897/phytokeys.225.100646.figure1" httpUri="https://binary.pensoft.net/fig/845192" pageId="0" pageNumber="199">Figs 1</figureCitation>
<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Argyreia subrotunda Q. R. Liu &amp; M. L. Zhang, sp. nov. A plant habit B inflorescence C flower in frontal view D fruit with persistent sepals E seeds: adaxial surface (left); lateral surface (right). Scale bar: 5 mm. Photographs A-C, E by Mao-Lin Zhang, D by Xi-Bing Guo." figureDoi="10.3897/phytokeys.225.100646.figure2" httpUri="https://binary.pensoft.net/fig/845193" pageId="0" pageNumber="199">, 2</figureCitation>
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="199" type="materials_examined">
<paragraph pageId="0" pageNumber="199">
<typeStatus>Type</typeStatus>
.
</paragraph>
<paragraph pageId="0" pageNumber="199">
<materialsCitation collectingDate="2021-08-27" collectorName="M. L. Zhang" country="China" county="Malipo County" elevation="1300" latitude="22.963337" location="Xinzhai Village" longLatPrecision="1" longitude="104.775314" specimenCount="1" stateProvince="Yunnan Province" typeStatus="holotype">
<collectingCountry name="China">China</collectingCountry>
.
<collectingRegion country="China" name="Yunnan">Yunnan Province</collectingRegion>
:
<collectingCounty>Malipo County</collectingCounty>
,
<location LSID="urn:lsid:plazi:treatment:4B08EF658DC3503AAEC0BAB7CC79B2B4:C6923A8118A175D575DD97BEDC6192D9" country="China" county="Malipo County" latitude="22.963337" longLatPrecision="1" longitude="104.775314" name="Xinzhai Village" stateProvince="Yunnan Province">Xinzhai Village</location>
,
<geoCoordinate degrees="22" direction="north" minutes="57" orientation="latitude" precision="1" seconds="48.01" value="22.963337">22°57'48.01&quot;N</geoCoordinate>
,
<geoCoordinate degrees="104" direction="east" minutes="46" orientation="longitude" precision="1" seconds="31.11" value="104.775314">104°46'31.11&quot;E</geoCoordinate>
, along roadside,
<quantity metricMagnitude="3" metricUnit="m" metricValue="1.3" unit="m" value="1300.0">
<elevation metricMagnitude="3" metricUnit="m" metricValue="1.3" unit="m" value="1300.0">1300 m</elevation>
</quantity>
elev.,
<collectingDate value="2021-08-27">27 Aug 2021</collectingDate>
, fl.
<emphasis italics="true" pageId="0" pageNumber="199">
<collectorName>M. L. Zhang</collectorName>
BNU2021YN074
</emphasis>
(
<typeStatus>holotype</typeStatus>
: BNU0053319!; isotypes: BNU!)
</materialsCitation>
.
</paragraph>
<caption doi="10.3897/phytokeys.225.100646.figure1" httpUri="https://binary.pensoft.net/fig/845192" pageId="0" pageNumber="199" start="Figure 1" startId="F1">
<paragraph pageId="0" pageNumber="199">
<emphasis bold="true" pageId="0" pageNumber="199">Figure 1.</emphasis>
<taxonomicName authorityName="Q. R. Liu &amp; M. L. Zhang" authorityYear="2023" class="Magnoliopsida" family="Convolvulaceae" genus="Argyreia" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Argyreia subrotunda" order="Solanales" pageId="0" pageNumber="199" phylum="Tracheophyta" rank="species" species="subrotunda">
<emphasis italics="true" pageId="0" pageNumber="199">Argyreia subrotunda</emphasis>
</taxonomicName>
Q.R.Liu &amp; M.L.Zhang, sp. nov.
<emphasis bold="true" pageId="0" pageNumber="199">A</emphasis>
stem with leaves and inflorescences
<emphasis bold="true" pageId="0" pageNumber="199">B</emphasis>
bract (outside)
<emphasis bold="true" pageId="0" pageNumber="199">C</emphasis>
bract (inside)
<emphasis bold="true" pageId="0" pageNumber="199">D</emphasis>
sepals from outer (left) to innermost (right)
<emphasis bold="true" pageId="0" pageNumber="199">E</emphasis>
opened corolla showing mid-petaline bands
<emphasis bold="true" pageId="0" pageNumber="199">F</emphasis>
opened corolla with stamens
<emphasis bold="true" pageId="0" pageNumber="199">G</emphasis>
pistil
<emphasis bold="true" pageId="0" pageNumber="199">H</emphasis>
fruit with persistent sepals
<emphasis bold="true" pageId="0" pageNumber="199">I</emphasis>
seed (adaxial surface)
<emphasis bold="true" pageId="0" pageNumber="199">J</emphasis>
seed (lateral surface). All drawn by Quan-Ru Liu from voucher specimens
<emphasis italics="true" pageId="0" pageNumber="199">M. L. Zhang BNU2021YN074</emphasis>
(BNU!) (
<emphasis bold="true" pageId="0" pageNumber="199">A-G</emphasis>
),
<emphasis italics="true" pageId="0" pageNumber="199">X. B. Guo BNU2021YN081</emphasis>
(BNU!) (
<emphasis bold="true" pageId="0" pageNumber="199">H-J</emphasis>
).
</paragraph>
</caption>
</subSubSection>
<subSubSection pageId="0" pageNumber="199" type="diagnosis">
<paragraph pageId="0" pageNumber="199">Diagnosis.</paragraph>
<paragraph pageId="0" pageNumber="199">
<taxonomicName lsidName="A. subrotunda" pageId="0" pageNumber="199" rank="species" species="subrotunda">
<emphasis italics="true" pageId="0" pageNumber="199">A. subrotunda</emphasis>
</taxonomicName>
is unique, a small-flowered type with an entire or shallowly lobed corolla as well as exserted stamens and pistils (included in dry specimens), smaller elliptic bracts, and outer sepals ovate-circular. It is similar to
<taxonomicName lsidName="A. wallichii" pageId="0" pageNumber="199" rank="species" species="wallichii">
<emphasis italics="true" pageId="0" pageNumber="199">A. wallichii</emphasis>
</taxonomicName>
in indumentum features (whitish tomentose) and fruit types (red globose berry), but differs by its smaller elliptic bracts (vs. ovate-oblong), lax flat-topped cymes (vs. compact capitate) and shorter corolla tubes (2-2.5 cm vs. 4-5 cm). Additionally,
<taxonomicName lsidName="A. subrotunda" pageId="0" pageNumber="199" rank="species" species="subrotunda">
<emphasis italics="true" pageId="0" pageNumber="199">A. subrotunda</emphasis>
</taxonomicName>
is similar to
<taxonomicName lsidName="A. fulvocymosa" pageId="0" pageNumber="199" rank="species" species="fulvocymosa">
<emphasis italics="true" pageId="0" pageNumber="199">A. fulvocymosa</emphasis>
</taxonomicName>
in leaf shape (broadly ovate-circular to nearly circular) and inflorescence (flat-topped cymes), but the latter is covered with densely yellowish villus and has a distinctly 5-lobed corolla, which is very easy to distinguish (Table
<tableCitation captionStart="Table 1" captionStartId="T1" captionText="Table 1. Comparisons of A. fulvocymosa, A. subrotunda and A. wallichii." httpUri="http://table.plazi.org/id/A27E8042ACF00C9E78BB143479A0C0BF" pageId="0" pageNumber="199" tableUuid="A27E8042ACF00C9E78BB143479A0C0BF">1</tableCitation>
).
</paragraph>
<caption ID-Table-UUID="A27E8042ACF00C9E78BB143479A0C0BF" httpUri="http://table.plazi.org/id/A27E8042ACF00C9E78BB143479A0C0BF" pageId="0" pageNumber="199" start="Table 1" startId="T1">
<paragraph pageId="0" pageNumber="199">
<emphasis bold="true" pageId="0" pageNumber="199">Table 1.</emphasis>
Comparisons of
<taxonomicName lsidName="A. fulvocymosa" pageId="0" pageNumber="199" rank="species" species="fulvocymosa">
<emphasis italics="true" pageId="0" pageNumber="199">A. fulvocymosa</emphasis>
</taxonomicName>
,
<taxonomicName lsidName="A. subrotunda" pageId="0" pageNumber="199" rank="species" species="subrotunda">
<emphasis italics="true" pageId="0" pageNumber="199">A. subrotunda</emphasis>
</taxonomicName>
and
<taxonomicName lsidName="A. wallichii" pageId="0" pageNumber="199" rank="species" species="wallichii">
<emphasis italics="true" pageId="0" pageNumber="199">A. wallichii</emphasis>
</taxonomicName>
.
</paragraph>
</caption>
<paragraph pageId="0" pageNumber="199">
<table pageId="0" pageNumber="199">
<tr pageId="0" pageNumber="199">
<th colspan="1" pageId="0" pageNumber="199" rowspan="1">Character</th>
<th colspan="1" isEmpty="true" pageId="0" pageNumber="199" rowspan="1">-</th>
<th colspan="1" pageId="0" pageNumber="199" rowspan="1">
<taxonomicName lsidName="A. fulvocymosa" pageId="0" pageNumber="199" rank="species" species="fulvocymosa">
<emphasis italics="true" pageId="0" pageNumber="199">A. fulvocymosa</emphasis>
</taxonomicName>
</th>
<th colspan="1" pageId="0" pageNumber="199" rowspan="1">
<taxonomicName lsidName="A. subrotunda" pageId="0" pageNumber="199" rank="species" species="subrotunda">
<emphasis italics="true" pageId="0" pageNumber="199">A. subrotunda</emphasis>
</taxonomicName>
</th>
<th colspan="1" pageId="0" pageNumber="199" rowspan="1">
<taxonomicName lsidName="A. wallichii" pageId="0" pageNumber="199" rank="species" species="wallichii">
<emphasis italics="true" pageId="0" pageNumber="199">A. wallichii</emphasis>
</taxonomicName>
</th>
</tr>
<tr pageId="0" pageNumber="199">
<td colspan="1" pageId="0" pageNumber="199" rowspan="1">Inflorescence</td>
<td colspan="1" isEmpty="true" pageId="0" pageNumber="199" rowspan="1">-</td>
<td colspan="1" pageId="0" pageNumber="199" rowspan="1">flat-topped cymes</td>
<td colspan="1" pageId="0" pageNumber="199" rowspan="1">
<emphasis bold="true" pageId="0" pageNumber="199">flat-topped cymes</emphasis>
</td>
<td colspan="1" pageId="0" pageNumber="199" rowspan="1">
<emphasis bold="true" pageId="0" pageNumber="199">capitate cymes</emphasis>
</td>
</tr>
<tr pageId="0" pageNumber="199">
<td colspan="1" pageId="0" pageNumber="199" rowspan="2">Bract</td>
<td colspan="1" pageId="0" pageNumber="199" rowspan="1">Shape</td>
<td colspan="1" pageId="0" pageNumber="199" rowspan="1">unknown</td>
<td colspan="1" pageId="0" pageNumber="199" rowspan="1">
<emphasis bold="true" pageId="0" pageNumber="199">elliptic</emphasis>
</td>
<td colspan="1" pageId="0" pageNumber="199" rowspan="1">
<emphasis bold="true" pageId="0" pageNumber="199">ovate-oblong</emphasis>
</td>
</tr>
<tr pageId="0" pageNumber="199">
<td colspan="1" pageId="0" pageNumber="199" rowspan="1">Size</td>
<td colspan="1" pageId="0" pageNumber="199" rowspan="1">unknown</td>
<td colspan="1" pageId="0" pageNumber="199" rowspan="1">
<emphasis bold="true" pageId="0" pageNumber="199">0.8-1</emphasis>
cm
<normalizedToken originalValue="×">x</normalizedToken>
<emphasis bold="true" pageId="0" pageNumber="199">0.4-0.8</emphasis>
cm
</td>
<td colspan="1" pageId="0" pageNumber="199" rowspan="1">
<emphasis bold="true" pageId="0" pageNumber="199">2.5-3.5</emphasis>
cm
<normalizedToken originalValue="×">x</normalizedToken>
<emphasis bold="true" pageId="0" pageNumber="199">1.5-2.5</emphasis>
cm
</td>
</tr>
<tr pageId="0" pageNumber="199">
<td colspan="1" pageId="0" pageNumber="199" rowspan="1">Outer sepal</td>
<td colspan="1" pageId="0" pageNumber="199" rowspan="1">Shape</td>
<td colspan="1" pageId="0" pageNumber="199" rowspan="1">broadly ovate-circular</td>
<td colspan="1" pageId="0" pageNumber="199" rowspan="1">ovate-circular</td>
<td colspan="1" pageId="0" pageNumber="199" rowspan="1">elliptic-oblong</td>
</tr>
<tr pageId="0" pageNumber="199">
<td colspan="1" pageId="0" pageNumber="199" rowspan="3">Corolla</td>
<td colspan="1" pageId="0" pageNumber="199" rowspan="1">Length</td>
<td colspan="1" pageId="0" pageNumber="199" rowspan="1">ca. 2 cm</td>
<td colspan="1" pageId="0" pageNumber="199" rowspan="1">
<emphasis bold="true" pageId="0" pageNumber="199">2-2.5</emphasis>
cm
</td>
<td colspan="1" pageId="0" pageNumber="199" rowspan="1">
<emphasis bold="true" pageId="0" pageNumber="199">4-5</emphasis>
cm
</td>
</tr>
<tr pageId="0" pageNumber="199">
<td colspan="1" pageId="0" pageNumber="199" rowspan="1">Mid-petaline bands indumentum</td>
<td colspan="1" pageId="0" pageNumber="199" rowspan="1">yellowish hirsute</td>
<td colspan="1" pageId="0" pageNumber="199" rowspan="1">whitish villous</td>
<td colspan="1" pageId="0" pageNumber="199" rowspan="1">whitish villous</td>
</tr>
<tr pageId="0" pageNumber="199">
<td colspan="1" pageId="0" pageNumber="199" rowspan="1">Limb</td>
<td colspan="1" pageId="0" pageNumber="199" rowspan="1">
<emphasis bold="true" pageId="0" pageNumber="199">distinctly 5-lobed</emphasis>
</td>
<td colspan="1" pageId="0" pageNumber="199" rowspan="1">
<emphasis bold="true" pageId="0" pageNumber="199">entire or shallowly lobed</emphasis>
</td>
<td colspan="1" pageId="0" pageNumber="199" rowspan="1">entire or shallowly lobed</td>
</tr>
<tr pageId="0" pageNumber="199">
<td colspan="1" pageId="0" pageNumber="199" rowspan="1">Stamen and pistil</td>
<td colspan="1" isEmpty="true" pageId="0" pageNumber="199" rowspan="1">-</td>
<td colspan="1" pageId="0" pageNumber="199" rowspan="1">exserted</td>
<td colspan="1" pageId="0" pageNumber="199" rowspan="1">exserted</td>
<td colspan="1" pageId="0" pageNumber="199" rowspan="1">included</td>
</tr>
</table>
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="199" type="description">
<paragraph pageId="0" pageNumber="199">Description.</paragraph>
<paragraph pageId="0" pageNumber="199">
Climbing lianas; stem woody at base, herbaceous above, the former puberulent, the latter covered with whitish trichomes. Leaves simple, alternate; petiole 6-10 cm long, tomentose; leaf blades broadly ovate to rounded, 13-16
<normalizedToken originalValue="×">x</normalizedToken>
12-15 cm; base truncate or slightly cordate, occasionally oblique, margins entire, apex acute or obtuse, sometimes slightly emarginate; adaxially green, sparsely whitish velutinous only along leaf veins, abaxially paler, densely shining tomentose; secondary veins 13-15 on either side, curved to edge, veins slightly raised adaxially, more prominently raised abaxially. Inflorescences flat-topped cymes, axillary or terminal; peduncle 2-5 cm long, tomentose, angulate, secondary and tertiary peduncle 6-12 mm long; bracts small, elliptic, 8-10
<normalizedToken originalValue="×">x</normalizedToken>
4-8 mm, obtuse, hairy outside, veined; pedicels 5-7 mm long, up to 10 mm in fruit. Flowers diurnal; sepals unequal, 2 outer ovate-circular, 8-9
<normalizedToken originalValue="×">x</normalizedToken>
6-7mm, 3 inner elliptic, 6-7
<normalizedToken originalValue="×">x</normalizedToken>
3-5 mm, apex obtuse, abaxially whitish tomentose, adaxially glabrous, veined, enlarged in fruit, rose-red, shiny. Corolla tubular-funnelform, 2-2.5 cm long, pink, densely whitish villous outside on mid-petaline bands, otherwise glabrous, limb entire or shallowly lobed. Stamens exserted; filaments filiform, 14-15 mm long, attaching to the site of ca. 5 mm from stamens base, expanded at attachment points and densely whitish hairy there; anthers oblong, 3-4 mm long; pollen globose, pantoporate, with spines, 90-101
<normalizedToken originalValue="μm">μm</normalizedToken>
in diameter. Pistil exserted; disc ringlike, glabrous, ca. 1 mm high; ovary glabrous, ovoid, 2-3 mm high; style filiform, glabrous, 20-22 mm long; stigmas capitate, 2-lobed. Fruit enclosed in persistent, accrescent calyx, 2 outer fruiting sepals enlarging to 10-11
<normalizedToken originalValue="×">x</normalizedToken>
7-8 mm, 3 inner sepals 8-10
<normalizedToken originalValue="×">x</normalizedToken>
5-6 mm; berry subglobose, 7-10 mm in diam., purple-red, glabrous, exocarp leathery shiny, with obvious stomata under a magnifier, wrinkled when dry. Seeds 1-2, subglobose or hemispherical, 3.5-4
<normalizedToken originalValue="×">x</normalizedToken>
4-4.5
<normalizedToken originalValue="×">x</normalizedToken>
2.5-3 mm, black, glabrous, surface not smooth; hilum subcordate, brown, basal, margin with sparsely whitish hairy.
</paragraph>
<caption doi="10.3897/phytokeys.225.100646.figure2" httpUri="https://binary.pensoft.net/fig/845193" pageId="0" pageNumber="199" start="Figure 2" startId="F2">
<paragraph pageId="0" pageNumber="199">
<emphasis bold="true" pageId="0" pageNumber="199">Figure 2.</emphasis>
<taxonomicName authorityName="Q. R. Liu &amp; M. L. Zhang" authorityYear="2023" class="Magnoliopsida" family="Convolvulaceae" genus="Argyreia" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Argyreia subrotunda" order="Solanales" pageId="0" pageNumber="199" phylum="Tracheophyta" rank="species" species="subrotunda">
<emphasis italics="true" pageId="0" pageNumber="199">Argyreia subrotunda</emphasis>
</taxonomicName>
Q.R.Liu &amp; M.L.Zhang, sp. nov.
<emphasis bold="true" pageId="0" pageNumber="199">A</emphasis>
plant habit
<emphasis bold="true" pageId="0" pageNumber="199">B</emphasis>
inflorescence
<emphasis bold="true" pageId="0" pageNumber="199">C</emphasis>
flower in frontal view
<emphasis bold="true" pageId="0" pageNumber="199">D</emphasis>
fruit with persistent sepals
<emphasis bold="true" pageId="0" pageNumber="199">E</emphasis>
seeds: adaxial surface (left); lateral surface (right). Scale bar: 5 mm. Photographs
<emphasis bold="true" pageId="0" pageNumber="199">A-C, E</emphasis>
by Mao-Lin Zhang,
<emphasis bold="true" pageId="0" pageNumber="199">D</emphasis>
by Xi-Bing Guo.
</paragraph>
</caption>
</subSubSection>
<subSubSection pageId="0" pageNumber="199" type="phenology">
<paragraph pageId="0" pageNumber="199">Phenology.</paragraph>
<paragraph pageId="0" pageNumber="199">Flowering from August to November; fruiting in November to February.</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="199" type="distribution">
<paragraph pageId="0" pageNumber="199">Distribution and habitat.</paragraph>
<paragraph pageId="0" pageNumber="199">
Distributed in Yunnan and Gaungxi Province (Fig.
<figureCitation captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Distribution of Argyreia subrotunda in China. Drawn by Yi He." figureDoi="10.3897/phytokeys.225.100646.figure3" httpUri="https://binary.pensoft.net/fig/845194" pageId="0" pageNumber="199">3</figureCitation>
), occurring at elevations of ca. 650-1300 m, distributed at open and sunny places such as roadsides, thickets, edges of mingled forest.
</paragraph>
<caption doi="10.3897/phytokeys.225.100646.figure3" httpUri="https://binary.pensoft.net/fig/845194" pageId="0" pageNumber="199" start="Figure 3" startId="F3">
<paragraph pageId="0" pageNumber="199">
<emphasis bold="true" pageId="0" pageNumber="199">Figure 3.</emphasis>
Distribution of
<taxonomicName authorityName="Q. R. Liu &amp; M. L. Zhang" authorityYear="2023" class="Magnoliopsida" family="Convolvulaceae" genus="Argyreia" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Argyreia subrotunda" order="Solanales" pageId="0" pageNumber="199" phylum="Tracheophyta" rank="species" species="subrotunda">
<emphasis italics="true" pageId="0" pageNumber="199">Argyreia subrotunda</emphasis>
</taxonomicName>
in China. Drawn by Yi He.
</paragraph>
</caption>
</subSubSection>
<subSubSection pageId="0" pageNumber="199" type="preliminary conservation status">
<paragraph pageId="0" pageNumber="199">Preliminary conservation status.</paragraph>
<paragraph pageId="0" pageNumber="199">
Least Concern (LC). At present, five populations have been collected in Malipo County, Maguan County and Napo County. Each population is large with high flowering rates, and the number of mature individuals in the population is more than 50. According to the
<bibRefCitation author="Fang, RC" journalOrPublisher="Science Press, Beijing" pageId="0" pageNumber="199" publicationUrl="http://www.iucnredlist.org/documents/RedListGuidelines.pdf" refId="B5" refString="2019. . http://www.iucnredlist.org/documents/RedListGuidelines.pdf" url="http://www.iucnredlist.org/documents/RedListGuidelines.pdf" year="2019">IUCN (2019)</bibRefCitation>
red list categories and criteria,
<taxonomicName lsidName="A. subrotunda" pageId="0" pageNumber="199" rank="species" species="subrotunda">
<emphasis italics="true" pageId="0" pageNumber="199">A. subrotunda</emphasis>
</taxonomicName>
should be categorized as a 'Least Concern (LC)' species, which needs further investigation and research to more fully assess the conservation status.
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="199" type="etymology">
<paragraph pageId="0" pageNumber="199">Etymology.</paragraph>
<paragraph pageId="0" pageNumber="199">The specific epithet refers to the leaf shape, which is near-round.</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="199" type="chinese name">
<paragraph pageId="0" pageNumber="199">Chinese name.</paragraph>
<paragraph pageId="0" pageNumber="199">
<normalizedToken originalValue="近圆叶银背藤">近圆叶银背藤</normalizedToken>
(
<normalizedToken originalValue="Jìn">Jin</normalizedToken>
<normalizedToken originalValue="Yuán">Yuan</normalizedToken>
<normalizedToken originalValue="Yè">Ye</normalizedToken>
<normalizedToken originalValue="Yín">Yin</normalizedToken>
<normalizedToken originalValue="Bèi">Bei</normalizedToken>
<normalizedToken originalValue="Téng">Teng</normalizedToken>
).
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="199" type="materials_examined">
<paragraph pageId="0" pageNumber="199">Additional specimens examined.</paragraph>
<paragraph pageId="0" pageNumber="199">
<materialsCitation collectingDate="2013-11-26" collectorName="B. Y. Huang" country="China" county="Napo County" location="Naen Reservoir" municipality="Baisheng Township" specimenCount="1" stateProvince="Guangxi Province">
<collectingCountry name="China">China</collectingCountry>
,
<collectingRegion country="China" name="Guangxi">Guangxi Province</collectingRegion>
:
<collectingCounty>Napo County</collectingCounty>
,
<collectingMunicipality>Baisheng Township</collectingMunicipality>
,
<location LSID="urn:lsid:plazi:treatment:4B08EF658DC3503AAEC0BAB7CC79B2B4:6A44B4DCA5F21082A320D4A9E744AC15" country="China" county="Napo County" municipality="Baisheng Township" name="Naen Reservoir" stateProvince="Guangxi Province">Naen Reservoir</location>
,
<collectingDate value="2013-11-26">26 Nov. 2013</collectingDate>
, fr.
<emphasis italics="true" pageId="0" pageNumber="199">
<collectorName>B. Y. Huang</collectorName>
et al. 451026131126017LY
</emphasis>
(GXMG!)
</materialsCitation>
;
<materialsCitation collectingDate="1940-02-02" collectingDateMax="2021-11-23" collectingDateMin="1940-02-02" collectorName="C. W. Wang, Wen-tian Road, National Highway G, X. B. Guo" country="China" county="Malipo County" elevation="1000" location="Malipo County" municipality="Bar-bu" specimenCount="1" stateProvince="Yunnan Province">
<collectingRegion country="China" name="Yunnan">Yunnan Province</collectingRegion>
:
<collectingCounty>Malipo County</collectingCounty>
,
<collectingMunicipality>Bar-bu</collectingMunicipality>
,
<quantity metricMagnitude="3" metricUnit="m" metricValue="1.0" unit="m" value="1000.0">
<elevation metricMagnitude="3" metricUnit="m" metricValue="1.0" unit="m" value="1000.0">1000 m</elevation>
</quantity>
elev.,
<collectingDate value="1940-02-02">2 Feb. 1940</collectingDate>
, fr.
<emphasis italics="true" pageId="0" pageNumber="199">
<collectorName>C. W. Wang</collectorName>
et al. 86509
</emphasis>
(PE!);
<location LSID="urn:lsid:plazi:treatment:4B08EF658DC3503AAEC0BAB7CC79B2B4:6B52E2D9B66B8F616B188B8D3DC9B577" country="China" county="Malipo County" municipality="Bar-bu" name="Malipo County" stateProvince="Yunnan Province">Malipo County</location>
,
<collectorName>Wen-tian Road</collectorName>
beside
<collectorName>National Highway G</collectorName>
<quantity metricMagnitude="5" metricUnit="m" metricValue="2.4665" unit="m" value="246650.0">
<elevation metricMagnitude="5" metricUnit="m" metricValue="2.4665" unit="m" value="246650.0">246, 650 m</elevation>
</quantity>
elev.,
<collectingDate value="2021-11-23">23 Nov. 2021</collectingDate>
, fr.
<emphasis italics="true" pageId="0" pageNumber="199">
<collectorName>X. B. Guo</collectorName>
BNU2021YN081
</emphasis>
(BNU!);
<location LSID="urn:lsid:plazi:treatment:4B08EF658DC3503AAEC0BAB7CC79B2B4:720DD107A18EE9B6B88A406CDF28EC53" country="China" county="Malipo County" municipality="Bar-bu" name="Malipo County" stateProvince="Yunnan Province">Malipo County</location>
,
<location LSID="urn:lsid:plazi:treatment:4B08EF658DC3503AAEC0BAB7CC79B2B4:F1C8DD1051C2C1D08233A739B4CEF5C8" country="China" county="Malipo County" municipality="Bar-bu" name="Xinzhai Village" stateProvince="Yunnan Province">Xinzhai Village</location>
,
<quantity metricMagnitude="3" metricUnit="m" metricValue="1.3" unit="m" value="1300.0">
<elevation metricMagnitude="3" metricUnit="m" metricValue="1.3" unit="m" value="1300.0">1300 m</elevation>
</quantity>
elev.,
<collectingDate value="2021-11-23">23 Nov. 2021</collectingDate>
, fl.
<emphasis italics="true" pageId="0" pageNumber="199">
<collectorName>X. B. Guo</collectorName>
BNU2021YN082
</emphasis>
(BNU!)
</materialsCitation>
.
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="199" type="pollen morphology">
<paragraph pageId="0" pageNumber="199">Pollen morphology</paragraph>
<paragraph pageId="0" pageNumber="199">
The observed pollen grains of
<taxonomicName lsidName="A. subrotunda" pageId="0" pageNumber="199" rank="species" species="subrotunda">
<emphasis italics="true" pageId="0" pageNumber="199">A. subrotunda</emphasis>
</taxonomicName>
were monad, spheroidal to subspheroidal and radially symmetrical, with polypantoporate and echinate ornamentation (Fig.
<figureCitation captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. Comparison of pollen morphology A Argyreia subrotunda B A. wallichii C A. marlipoensis. Scale bars: 20 μm." figureDoi="10.3897/phytokeys.225.100646.figure4" httpUri="https://binary.pensoft.net/fig/845195" pageId="0" pageNumber="199">4</figureCitation>
). It was possible to divide into two types based on the pollen morphology as follows: the diameter of the pollen grain was less than 100
<normalizedToken originalValue="μm">μm</normalizedToken>
with shorter bottle-like spines (5-7
<normalizedToken originalValue="μm">μm</normalizedToken>
), such as
<taxonomicName lsidName="A. wallichii" pageId="0" pageNumber="199" rank="species" species="wallichii">
<emphasis italics="true" pageId="0" pageNumber="199">A. wallichii</emphasis>
</taxonomicName>
and the new species
<taxonomicName lsidName="A. subrotunda" pageId="0" pageNumber="199" rank="species" species="subrotunda">
<emphasis italics="true" pageId="0" pageNumber="199">A. subrotunda</emphasis>
</taxonomicName>
; the diameter of pollen grains was over 100
<normalizedToken originalValue="μm">μm</normalizedToken>
with longer cone-shaped spines (≥ 10
<normalizedToken originalValue="μm">μm</normalizedToken>
), such as
<taxonomicName lsidName="A. marlipoensis" pageId="0" pageNumber="199" rank="species" species="marlipoensis">
<emphasis italics="true" pageId="0" pageNumber="199">A. marlipoensis</emphasis>
</taxonomicName>
, which is endemic to Yunnan province, and the flower of which is first seen in this study.
</paragraph>
<caption doi="10.3897/phytokeys.225.100646.figure4" httpUri="https://binary.pensoft.net/fig/845195" pageId="0" pageNumber="199" start="Figure 4" startId="F4">
<paragraph pageId="0" pageNumber="199">
<emphasis bold="true" pageId="0" pageNumber="199">Figure 4.</emphasis>
Comparison of pollen morphology
<emphasis bold="true" pageId="0" pageNumber="199">A</emphasis>
<taxonomicName authorityName="Q. R. Liu &amp; M. L. Zhang" authorityYear="2023" class="Magnoliopsida" family="Convolvulaceae" genus="Argyreia" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Argyreia subrotunda" order="Solanales" pageId="0" pageNumber="199" phylum="Tracheophyta" rank="species" species="subrotunda">
<emphasis italics="true" pageId="0" pageNumber="199">Argyreia subrotunda</emphasis>
</taxonomicName>
<emphasis bold="true" pageId="0" pageNumber="199">B</emphasis>
<taxonomicName lsidName="A. wallichii" pageId="0" pageNumber="199" rank="species" species="wallichii">
<emphasis italics="true" pageId="0" pageNumber="199">A. wallichii</emphasis>
</taxonomicName>
<emphasis bold="true" pageId="0" pageNumber="199">C</emphasis>
<taxonomicName lsidName="A. marlipoensis" pageId="0" pageNumber="199" rank="species" species="marlipoensis">
<emphasis italics="true" pageId="0" pageNumber="199">A. marlipoensis</emphasis>
</taxonomicName>
. Scale bars: 20
<normalizedToken originalValue="μm">μm</normalizedToken>
.
</paragraph>
</caption>
</subSubSection>
</treatment>
</document>
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