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<document ID-CLB-Dataset="6024" ID-DOI="http://dx.doi.org/10.3897/phytokeys.179.65812" ID-GBIF-Dataset="32158295-6ccd-49ea-8b16-e732175f3533" ID-PMC="PMC8225592" ID-Pensoft-Pub="1314-2003-179-1" ID-Pensoft-UUID="04097C3F241F5D038FEB9113EFF8D097" ID-PubMed="34220208" ModsDocID="1314-2003-179-1" checkinTime="1623961734285" checkinUser="pensoft" docAuthor="Dong, Li-Na, Nguyen, Khang Sinh, Shui, Yu-Min, Nguyen, Hieu Quang, Xu, Wei-Bin &amp; Nguyen, Xuan Khu" docDate="2021" docId="E40FC06650D2567AB8B7945660A520A7" docLanguage="en" docName="PhytoKeys 179: 1-12" docOrigin="PhytoKeys 179" docPubDate="2021-06-17" docSource="http://dx.doi.org/10.3897/phytokeys.179.65812" docTitle="Begonia catbensis L. N. Dong, K. S. Nguyen &amp; Y. M. Shui 2021, sp. nov." docType="treatment" docVersion="6" id="04097C3F241F5D038FEB9113EFF8D097" lastPageNumber="1" masterDocId="04097C3F241F5D038FEB9113EFF8D097" masterDocTitle="Begonia catbensis (sect. Coelocentrum, Begoniaceae), a new species from northern Vietnam" masterLastPageNumber="12" masterPageNumber="1" pageNumber="1" updateTime="1732855264446" updateUser="ExternalLinkService">
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<mods:title id="AFCAFEC240DBD355B9452CF143A48AD4">Begonia catbensis (sect. Coelocentrum, Begoniaceae), a new species from northern Vietnam</mods:title>
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<mods:name id="5B682F310D71BCBC65BE814F86BFBFB6" type="personal">
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<mods:namePart id="1D85B8E63E030669DB38C2222B1854DC">Dong, Li-Na</mods:namePart>
<mods:affiliation id="A4FE7A386CAFB5DFEE81F7E2C33A9300">Guangxi Key Laboratory of Plant Conservation and Restoration Ecology in Karst Terrain, Guangxi Institute of Botany, Guangxi Zhuang Autonomous Region and Chinese Academy of Sciences, Guilin 541006, Guangxi, China</mods:affiliation>
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<mods:namePart id="3B40F4AC63DBE44C17EF7ADE1D5011D3">Nguyen, Khang Sinh</mods:namePart>
<mods:affiliation id="E5530CC3387E647CAACF295FEE2E3DC9">Institute of Ecology and Biological Resources, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Cau Giay, Hanoi, 100000, Vietnam</mods:affiliation>
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<mods:namePart id="AD695F4313520E87B7DE16555DD16F93">Shui, Yu-Min</mods:namePart>
<mods:affiliation id="B23645F8D8815F955344B3D626E7BD3C">CAS Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China</mods:affiliation>
<mods:nameIdentifier id="83EC74DF228C2C2166573C489F290890" type="email">ymshui@mail.kib.ac.cn</mods:nameIdentifier>
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<mods:namePart id="7777A95BE8841245BCB1AA059F716936">Nguyen, Hieu Quang</mods:namePart>
<mods:affiliation id="D7B9E73AC6773A3CF33782CAEAAC956D">Center for Plant Conservation of Vietnam (CPC), Vietnam Union of Science and Technology Associations, 25 / 32 Lane 191, Lac Long Quan Rd., Hanoi, Vietnam</mods:affiliation>
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<mods:namePart id="4C99857C864E5AA5F6E72442ABC886EB">Xu, Wei-Bin</mods:namePart>
<mods:affiliation id="5B4065A6021481CD392EDC0C75EA3818">Guangxi Key Laboratory of Plant Conservation and Restoration Ecology in Karst Terrain, Guangxi Institute of Botany, Guangxi Zhuang Autonomous Region and Chinese Academy of Sciences, Guilin 541006, Guangxi, China</mods:affiliation>
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<mods:namePart id="BDADC9D9CBB1FC242AA5C5C3259B805A">Nguyen, Xuan Khu</mods:namePart>
<mods:affiliation id="C778361378E6D7FE39C699CCE49DB6D4">Cat Ba National Park, Tran Chau, Cat Hai, Hai Phong, Vietnam</mods:affiliation>
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<mods:date id="5650C0F82B5CD80B896DDD0B23E57CFE">2021</mods:date>
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<mods:classification id="9FAAEE612E72DEA75A0914D6FBD9780B">journal article</mods:classification>
<mods:identifier id="0A9F202D347AA04462C058B0A3E012EF" type="DOI">http://dx.doi.org/10.3897/phytokeys.179.65812</mods:identifier>
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<treatment id="E40FC06650D2567AB8B7945660A520A7" ID-GBIF-Taxon="182953805" LSID="urn:lsid:plazi:treatment:E40FC06650D2567AB8B7945660A520A7" httpUri="http://treatment.plazi.org/id/E40FC06650D2567AB8B7945660A520A7" lastPageNumber="1" pageId="0" pageNumber="1" scope_family="Begoniaceae">
<subSubSection id="05D7ADAF3FC3F3480500548E30459155" pageId="0" pageNumber="1" type="nomenclature">
<paragraph id="C6D465C14A7E68AFAAD9AAA1EE77C81C" pageId="0" pageNumber="1">
<taxonomicName id="6916CD8455B25626FCD0EC7BF9610B6A" ID-CoL="8MNZC" LSID="E40FC066-50D2-567A-B8B7-945660A520A7" authority="L. N. Dong, K. S. Nguyen &amp; Y. M. Shui" authorityName="L. N. Dong, K. S. Nguyen &amp; Y. M. Shui" authorityYear="2021" class="Magnoliopsida" family="Begoniaceae" genus="Begonia" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Begonia catbensis" order="Cucurbitales" pageId="0" pageNumber="1" phylum="Tracheophyta" rank="species" species="catbensis" status="sp. nov.">Begonia catbensis L.N.Dong, K.S.Nguyen &amp; Y.M.Shui</taxonomicName>
<taxonomicNameLabel id="E723FD02DD5D9C225226391587E6A449" pageId="0" pageNumber="1">sp. nov.</taxonomicNameLabel>
<figureCitation id="F76A1DB1BDBABF3F6F32790541287849" captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Begonia catbensis A plants growing on rocks in the wild B habit C apical shoot bearing stipules D young leaf, abaxial view E part of adaxial leaf surface showing bullae, setae and palmate veins F dendritic hairs on petiole and abaxial veins G portion of leaf showing reddish setae on bullae and along margin. Photos and layout by K. S. Nguyen &amp; L. N. Dong." figureDoi="10.3897/phytokeys.179.65812.figure1" httpUri="https://binary.pensoft.net/fig/556278" pageId="0" pageNumber="1">Figs 1</figureCitation>
<figureCitation id="DDB2CFC3697F83C6EDF5EC1EDB69143D" captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Begonia catbensis A apical part of inflorescence showing peduncle, pedicel, bracts, bracteoles, staminate and pistillate flowers B staminate and pistillate flowers C staminate flower (upper) in front view D stamens E pistillate flower-top view F pistillate flower, lateral view G dissected styles and stigmas H fruits and their cross-cut. Photos and layout by K. S. Nguyen &amp; L. N. Dong." figureDoi="10.3897/phytokeys.179.65812.figure2" httpUri="https://binary.pensoft.net/fig/556279" pageId="0" pageNumber="1">, 2</figureCitation>
<figureCitation id="70BE39FD7ECFB9E7343523F3B5A14F78" captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Distribution map of Begonia catbensis and its closest related species (The map is modified from https: // en. wikipedia. org / wiki / Mainland _ Southeast _ Asia)." figureDoi="10.3897/phytokeys.179.65812.figure3" httpUri="https://binary.pensoft.net/fig/556280" pageId="0" pageNumber="1">, 3</figureCitation>
,
<figureCitation id="5057081E695EA7A26BB22C333B9778C3" captionStart="Table 1" captionStartId="T1" captionText="Table 1. Morphological comparison of Begonia catbensis, B. melanobullata, B. montaniformis (Peng et al. 2015) and B. fimbribracteata (Shui and Chen 2005)." pageId="0" pageNumber="1">Table 1</figureCitation>
</paragraph>
</subSubSection>
<subSubSection id="5B57BA5CF53BD71A6D2C80D5A78433FD" pageId="0" pageNumber="1" type="diagnosis">
<paragraph id="A9B3416B67CB05DB5D02983DB22AC95F" pageId="0" pageNumber="1">Diagnosis.</paragraph>
<paragraph id="AFF6688A037B73BC714B4328F4C94324" pageId="0" pageNumber="1">
Morphologically similar to several
<taxonomicName id="D6150348948C26601F42EDB9E02BAEDC" class="Magnoliopsida" family="Begoniaceae" genus="Begonia" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Begonia" order="Cucurbitales" pageId="0" pageNumber="1" phylum="Tracheophyta" rank="genus">
<emphasis id="B07A8C957B070A448B8DB43A553C19A8" italics="true" pageId="0" pageNumber="1">Begonia</emphasis>
</taxonomicName>
having conically bullate leaves and others with a rugulose leaf surface with white maculation and a ciliolate tepal margin, but can be easily distinguished from them by the dendritic hairs on the petioles, abaxial veins and the keeled mid-rib of the stipules, glabrous peduncles, pistillate flowers with 2 tepals and glabrescent ovaries with verrucose wings.
</paragraph>
<caption id="4A9812F9AE2B582BBDFF2D5546EEF402" doi="10.3897/phytokeys.179.65812.figure1" httpUri="https://binary.pensoft.net/fig/556278" pageId="0" pageNumber="1" start="Figure 1" startId="F1">
<paragraph id="5BE4FE36D61AE75AA0D1C536B3CF174A" pageId="0" pageNumber="1">
<emphasis id="E0E529829FF396BC672DD3E0A175AD8E" bold="true" pageId="0" pageNumber="1">Figure 1.</emphasis>
<taxonomicName id="242EDE66E1C5454F61596B41492AD4C3" authorityName="L. N. Dong, K. S. Nguyen &amp; Y. M. Shui" authorityYear="2021" class="Magnoliopsida" family="Begoniaceae" genus="Begonia" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Begonia catbensis" order="Cucurbitales" pageId="0" pageNumber="1" phylum="Tracheophyta" rank="species" species="catbensis">
<emphasis id="27C0F63A68BDC179F0E4F8AC881680C1" italics="true" pageId="0" pageNumber="1">Begonia catbensis</emphasis>
</taxonomicName>
<emphasis id="FEE3151D3CD5267A7D0D91293B597DA9" bold="true" pageId="0" pageNumber="1">A</emphasis>
plants growing on rocks in the wild
<emphasis id="96DECBF0C97E491E455D03D3AC297D77" bold="true" pageId="0" pageNumber="1">B</emphasis>
habit
<emphasis id="D611A2D945D5885289175875936D5CED" bold="true" pageId="0" pageNumber="1">C</emphasis>
apical shoot bearing stipules
<emphasis id="E9A23C6BAD41916D699DC55C9A78329E" bold="true" pageId="0" pageNumber="1">D</emphasis>
young leaf, abaxial view
<emphasis id="5259EC0410E0D30F960366B3D65047F8" bold="true" pageId="0" pageNumber="1">E</emphasis>
part of adaxial leaf surface showing bullae, setae and palmate veins
<emphasis id="E767F0F49C0075A8C861565553DD6563" bold="true" pageId="0" pageNumber="1">F</emphasis>
dendritic hairs on petiole and abaxial veins
<emphasis id="F2A1CE72ABE3BB0FB368D0DAD05E10E2" bold="true" pageId="0" pageNumber="1">G</emphasis>
portion of leaf showing reddish setae on bullae and along margin. Photos and layout by K.S. Nguyen &amp; L.N. Dong.
</paragraph>
</caption>
</subSubSection>
<subSubSection id="087522901BD105DDA4B491A37E4F2078" pageId="0" pageNumber="1" type="materials_examined">
<paragraph id="8415C78036CE74688A6C4CD6CB3820EC" pageId="0" pageNumber="1">
<typeStatus id="78382CA4F43247A8310383366C0D72E1">Type</typeStatus>
.
</paragraph>
<paragraph id="5EA85BB8D88ECE957D15538C770ED8A4" pageId="0" pageNumber="1">
<materialsCitation id="C1319CC3003F6EC175B0DA94190CE275" collectingDate="2019-08-24" collectorName="W. B. Xu, K. S. Nguyen, C. R. Lin, L. N. Dong, H. Q. Nguyen, X. K. Nguyen" country="Vietnam" county="City" elevation="60" latitude="20.803333" location="Cat Ba National Park" longLatPrecision="1" longitude="106.99917" municipality="Cat Hai District" specimenCount="1" stateProvince="Hai Phong" typeStatus="Holotype">
<collectingCountry id="C847ADBF731C4ED8C2622C81B33F91C0" name="Vietnam">Vietnam</collectingCountry>
.
<collectingRegion id="372BB82A6D202DA3259A4F895C1078A5" country="Vietnam" name="Hai Phong">Hai Phong</collectingRegion>
<collectingCounty id="C41793B6DA89F2A555149D6AA66E3883">City</collectingCounty>
,
<collectingMunicipality id="CDA2F2BE2E58BBD4D807DDF2460EFBB9">Cat Hai District</collectingMunicipality>
,
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, remnants of primary broad-leaved evergreen forest in lowland of limestone hills, around point
<geoCoordinate id="567CEC9A202DFFD5FABEC9038FB1690E" degrees="20.803333" direction="north" orientation="latitude" precision="1" value="20.803333">20.803333°N</geoCoordinate>
,
<geoCoordinate id="B000B34679C720FB5190CE4FDC7C1186" degrees="106.999167" direction="east" orientation="longitude" precision="1" value="106.99917">106.999167°E</geoCoordinate>
,
<elevation id="2942FDA5DED6FF606689E59F52E1C0AC" metricMagnitude="1" metricUnit="m" metricValue="6.0" metricValueMax="7.0" metricValueMin="5.0" unit="m" value="60.0" valueMax="70.0" valueMin="50.0">
<quantity id="E4D390A5B4C6C10EA01DFEAF074EA34D" metricMagnitude="1" metricUnit="m" metricValue="6.0" metricValueMax="7.0" metricValueMin="5.0" unit="m" value="60.0" valueMax="70.0" valueMin="50.0">50-70 m</quantity>
a.s.l.
</elevation>
, flowers white to greenish, fruits green, rare,
<collectingDate id="1EE10F8DA0199AC0C46E15E343915E18" value="2019-08-24">24 August 2019</collectingDate>
,
<emphasis id="F92D72A8F96C8272F3065A05E2F04D32" italics="true" pageId="0" pageNumber="1">
<collectorName id="BB4FA5F38F0C08A7E6DCE0D41575F138">W.B. Xu</collectorName>
</emphasis>
,
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<collectorName id="3B4E675DEA1BA0684D4CD267CBB900E9">K.S. Nguyen</collectorName>
</emphasis>
,
<emphasis id="F3E9F07F44CD8EC4F47A0B0E2D308E82" italics="true" pageId="0" pageNumber="1">
<collectorName id="E7030D7A9BC7E1AAD809694B6EE56CCA">C.R. Lin</collectorName>
</emphasis>
,
<emphasis id="3A3FFCDE4235AB9CDDBF8C081BA48F52" italics="true" pageId="0" pageNumber="1">
<collectorName id="4BA77EE16B8676BFD2229A080E21603F">L.N. Dong</collectorName>
</emphasis>
,
<emphasis id="637BC2362B6240176835CE239DCB1FDD" italics="true" pageId="0" pageNumber="1">
<collectorName id="6BC94985EA8C33C25AC5C6886D01A2AA">H.Q. Nguyen</collectorName>
</emphasis>
&amp;
<emphasis id="209D5DE6663F54B052EDDA3E9731FD73" italics="true" pageId="0" pageNumber="1">
<collectorName id="E95C049ADB387293EFB81CCA93709F4C">X.K. Nguyen</collectorName>
14002
</emphasis>
(
<emphasis id="8EE55065138C5BACDE00E5C2F0506976" bold="true" italics="true" pageId="0" pageNumber="1">
<typeStatus id="3ED453DA7C91E887F65329ADC2FA5A34">Holotype</typeStatus>
</emphasis>
: HN!;
<emphasis id="27DF5AE47DFB52EC03C9F6069447EFA1" bold="true" italics="true" pageId="0" pageNumber="1">Isotypes</emphasis>
: IBK00421271!, HN!)
</materialsCitation>
.
</paragraph>
<caption id="9A19609221B3F838E407D380FE4DB8AA" doi="10.3897/phytokeys.179.65812.figure2" httpUri="https://binary.pensoft.net/fig/556279" pageId="0" pageNumber="1" start="Figure 2" startId="F2">
<paragraph id="72C43539DC9E75CDE0A9A5540009043A" pageId="0" pageNumber="1">
<emphasis id="8F2B40DE34C9C92D16C9041DBF2FE749" bold="true" pageId="0" pageNumber="1">Figure 2.</emphasis>
<taxonomicName id="5220C257E5A96619AD2DA8B325758BCF" authorityName="L. N. Dong, K. S. Nguyen &amp; Y. M. Shui" authorityYear="2021" class="Magnoliopsida" family="Begoniaceae" genus="Begonia" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Begonia catbensis" order="Cucurbitales" pageId="0" pageNumber="1" phylum="Tracheophyta" rank="species" species="catbensis">
<emphasis id="2154CBF0663CB847983516A0855E6A18" italics="true" pageId="0" pageNumber="1">Begonia catbensis</emphasis>
</taxonomicName>
<emphasis id="8ACC0C9ABAB256A4A6B0787D5196BA04" bold="true" pageId="0" pageNumber="1">A</emphasis>
apical part of inflorescence showing peduncle, pedicel, bracts, bracteoles, staminate and pistillate flowers
<emphasis id="8C0B4A803BF7A85AC91AF58B58206687" bold="true" pageId="0" pageNumber="1">B</emphasis>
staminate and pistillate flowers
<emphasis id="6CFA5AC9040A93C706318AD8205E0206" bold="true" pageId="0" pageNumber="1">C</emphasis>
staminate flower (upper) in front view
<emphasis id="6F65C2F10AA55FE1AF907F76F225CBE1" bold="true" pageId="0" pageNumber="1">D</emphasis>
stamens
<emphasis id="54B163212A42DE047128B1EE0A823E8C" bold="true" pageId="0" pageNumber="1">E</emphasis>
pistillate flower-top view
<emphasis id="12090AB71F48D2A192F686BBC3F82811" bold="true" pageId="0" pageNumber="1">F</emphasis>
pistillate flower, lateral view
<emphasis id="77C02CF416FB941E683EC4E3B6F95D9B" bold="true" pageId="0" pageNumber="1">G</emphasis>
dissected styles and stigmas
<emphasis id="ED202B06062BEB909FADCD5939CBE670" bold="true" pageId="0" pageNumber="1">H</emphasis>
fruits and their cross-cut. Photos and layout by K.S. Nguyen &amp; L.N. Dong.
</paragraph>
</caption>
</subSubSection>
<subSubSection id="882D71A930094E2C720DB72F9B4BF9CC" pageId="0" pageNumber="1" type="description">
<paragraph id="771A5A183DA8B9ABFF645FD5B0415282" pageId="0" pageNumber="1">Description.</paragraph>
<paragraph id="E779571106FED8FB849C6BCDCF352A4C" pageId="0" pageNumber="1">
Herb perennial, monoecious, epipetric, rhizomatous, rooting at nodes, about 25-35 cm tall. Rhizome succulent, elongate, 10-30 cm long, 4-7 mm in diameter, creeping and slightly suberect apically, pale greenish to purplish-green or brownish-red, internodes ca. 1.5 cm long, covered by sparse dendritic hairs. Stipules often persistent, ovate-triangular, herbaceous, brownish-red or purplish when young, later turning pale greenish speckled with purplish patches, 12-16
<normalizedToken id="7898C597CCF1E7B688047E14A5F7CD2A" originalValue="×">x</normalizedToken>
6-12 mm, adaxially glabrous, abaxially keeled, mid-rib with sparse dendritic hairs; margin entire or somewhat undulate and recurved; apex aristate, arista 2-3 mm long. Petiole cylindrical, succulent, 7-16 cm long, 3-4 mm in diameter, densely covered with reddish long-stalked dendritic hairs. Leaves 9-27, basal, alternate, asymmetric, unlobed, broadly ovate, 10-13
<normalizedToken id="5D4C6744DFC76F27B7E337B2E786E9FB" originalValue="×">x</normalizedToken>
5-7 cm, papery, adaxially glossy, dark green or rarely brown, with slightly silvery green patches along the veins, surface densely bullate, bullae conical and tipped with a red seta 1.5-2 mm long, abaxially brownish-red to red-brown (maroon), with pale green along major veins, long-stalked reddish dendritic hairs along the veins, base strongly oblique-cordate, margin repand and serrulate with red setae 1.5-2 mm long, apex acuminate; venation palmate with 5-7 primary veins, mid-rib distinct, with 2-4 secondary veins on each side, tertiary veins reticulate or percurrent, minor veins reticulate. Inflorescences axillary, dichasial cymes branched 2-3 times, arising directly from rhizome, pedunculate; peduncle terete, 13-22 cm long, 2.5-3.5 mm thick, glabrous, pale greenish-red to red; bracts and bracteoles not caducous, oblong or oval to ovate, slightly concave at the base and distally bent outwards during flowering, pale green with several longitudinal reddish veins, margin serrate-fimbriate with cilia 1.5-3 mm long, bracts 8-10
<normalizedToken id="6B060E2465B04969C87549797D6963F2" originalValue="×">x</normalizedToken>
4-6 mm, slightly larger than bracteoles (6-8
<normalizedToken id="8E32CCE20663453CFAC36B76CF247D3C" originalValue="×">x</normalizedToken>
2.5-3.5 mm). Staminate flower: pedicel glabrous, 12-19 mm; tepals 4, pure white, outer 2 broadly ovate to suborbicular, 9-14
<normalizedToken id="15AF9297AA855A307F9683AF3E5E9EC8" originalValue="×">x</normalizedToken>
8-12 mm, sparsely puberulent at the proximal margin, inner 2 glabrous, elliptic to oblanceolate, 6-8
<normalizedToken id="D4FEFD295B07E76192B4E53CF7C65851" originalValue="×">x</normalizedToken>
2.8-3.8 mm; androecium actinomorphic, spherical, 5-6 mm in diameter; stamens 27-32; filaments glabrous, 1.2-1.9 mm long, fused at base, yellowish dull white; anthers somewhat greenish-yellow, narrowly obdeltoid, 1.2-1.5 mm long, widest at apex, 0.8-1 mm wide, apex obtuse, base cuneate, opened by two longitudinal slits with orange margins. Pistillate flowers: pedicel glabrous, 7-14 mm long; tepals 2, suborbicular, 8-10 mm in diameter, greenish-white when young, later turning to dull white or pure white, glabrous, margin entire or slightly undulate with sparsely puberulent at base; ovary green, glabrescent, with verrucose wings, trigonous-ellipsoid, 1-loculed; placentation parietal, with 3 placentae, each 2 branched; styles 3, fused at base or nearly free, glabrous, glossy, yellow, 3-5 mm long, apically C-shaped, stigmatic band twisted. Capsule nodding on a stipe 9-16 mm long, trigonous-ellipsoid, 13-18 mm long, 6-8 mm thick (wings excluded), fleshy, greenish when fresh, 3-winged; wings densely verrucose, unequal, abaxial crescent shaped, 7-9 mm wide, lateral 2.5-3.5 mm wide. Seeds numerous, ellipsoid, brown.
</paragraph>
<caption id="730BB61C407607E4F62F060E504E9C97" doi="10.3897/phytokeys.179.65812.figure3" httpUri="https://binary.pensoft.net/fig/556280" pageId="0" pageNumber="1" start="Figure 3" startId="F3">
<paragraph id="55617811B67899F2762689A222F6A637" pageId="0" pageNumber="1">
<emphasis id="A7B5CEB6403C12518F41E592C787645E" bold="true" pageId="0" pageNumber="1">Figure 3.</emphasis>
Distribution map of
<taxonomicName id="1E2D70FF7B5C82831B16B761BE207448" authorityName="L. N. Dong, K. S. Nguyen &amp; Y. M. Shui" authorityYear="2021" class="Magnoliopsida" family="Begoniaceae" genus="Begonia" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Begonia catbensis" order="Cucurbitales" pageId="0" pageNumber="1" phylum="Tracheophyta" rank="species" species="catbensis">
<emphasis id="7ABAAAD72C2DE20B968B44F4BEB9CCE2" italics="true" pageId="0" pageNumber="1">Begonia catbensis</emphasis>
</taxonomicName>
and its closest related species (The map is modified from https://en.wikipedia.org/wiki/Mainland_Southeast_Asia).
</paragraph>
</caption>
</subSubSection>
<subSubSection id="303E9E891EADAF9EFC5CCD8053CE7367" pageId="0" pageNumber="1" type="etymology">
<paragraph id="DFEA965AF2E1715896E3D8E2F8D4F391" pageId="0" pageNumber="1">Etymology.</paragraph>
<paragraph id="C6D6BBE753E570432D732E1F9BA1F958" pageId="0" pageNumber="1">The species is named after the type locality, Cat Ba National Park.</paragraph>
</subSubSection>
<subSubSection id="CBE24AD202087FC22DBD658E684595D8" pageId="0" pageNumber="1" type="phenology">
<paragraph id="4F261D13ADBD215641CFB21EEB897479" pageId="0" pageNumber="1">Phenology.</paragraph>
<paragraph id="63DA1BA00095B10346EAE4AD88223F6A" pageId="0" pageNumber="1">Flowering in August; fruiting in August - reported earlier.</paragraph>
</subSubSection>
<subSubSection id="B056D25B7D6CD317EEF1FDD79FE9A998" pageId="0" pageNumber="1" type="distribution">
<paragraph id="0DDA6AE45C73E173C078F15C0CBB5508" pageId="0" pageNumber="1">Distribution and habitat.</paragraph>
<paragraph id="B83C6B20C7CCF1CB0379ABB889021B8A" pageId="0" pageNumber="1">
Cat Ba National Park is composed by many islets. All islets here are limestone mountains. We have had several days to survey in Cat Ba National Park and asked guides working in this National Park for the existence of this species, but we only found and recorded a single population here. Perhaps more populations will be found if more fieldwork is done in the future in this National Park. So far,
<taxonomicName id="14E43327EEC57F2637225DB0F2C26687" authorityName="L. N. Dong, K. S. Nguyen &amp; Y. M. Shui" authorityYear="2021" class="Magnoliopsida" family="Begoniaceae" genus="Begonia" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Begonia catbensis" order="Cucurbitales" pageId="0" pageNumber="1" phylum="Tracheophyta" rank="species" species="catbensis">
<emphasis id="1BA4959FE5E211860B173F82F412371F" italics="true" pageId="0" pageNumber="1">Begonia catbensis</emphasis>
</taxonomicName>
is only known from the Cat Ba National Park, Cat Hai District, Hai Phong City, in northern Vietnam. Within its distribution area, the new species grows on semi-shady tops of small rocks and on steep slopes under the broad-leaved evergreen forest in lowlands of limestone hills.
</paragraph>
</subSubSection>
<subSubSection id="81CFDDD1EB5EAC38EC8F3B4B44115677" pageId="0" pageNumber="1" type="conservation status">
<paragraph id="6ED3F41A2A748DCE7BE0D2C0A0F41F58" pageId="0" pageNumber="1">Conservation status.</paragraph>
<paragraph id="86E11CF0370372034FC41CD03251B2A2" pageId="0" pageNumber="1">
<taxonomicName id="E348AAB01B1CE4ADBD4D9B1ECC699B43" authorityName="L. N. Dong, K. S. Nguyen &amp; Y. M. Shui" authorityYear="2021" class="Magnoliopsida" family="Begoniaceae" genus="Begonia" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Begonia catbensis" order="Cucurbitales" pageId="0" pageNumber="1" phylum="Tracheophyta" rank="species" species="catbensis">
<emphasis id="D2F83AD8F9E9112E0528EE20B1C6166F" italics="true" pageId="0" pageNumber="1">Begonia catbensis</emphasis>
</taxonomicName>
is considered as a rare species because a single population with less than 200 mature individuals clustered into 10 clumps within an area of ca. 1 km2 has been recorded in Cat Ba National Park. Field observation shows that the single population is strictly managed and protected by the staff of the Cat Ba National Park and the number of individuals has been stable for at least two decades. Following the guidelines of the IUCN Red List Categories and Criteria version 14 (
<bibRefCitation id="1FD13A8AE1598B29AEE82E85600BEDFE" author="IUCN" journalOrPublisher="Mitteilungen aus dem Institut fuer allgemeine Botanik in Hamburg" pageId="0" pageNumber="1" publicationUrl="http://www.iucnredlist.org/documents/RedListGuidelines.pdf" refId="B11" refString="IUCN, 2019. Guidelines for using the IUCN red list categories and criteria. Version 14. Prepared by the Standards and Petitions Committee. http://www.iucnredlist.org/documents/RedListGuidelines.pdf" title="Guidelines for using the IUCN red list categories and criteria. Version 14. Prepared by the Standards and Petitions Committee." url="http://www.iucnredlist.org/documents/RedListGuidelines.pdf" year="2019">IUCN 2019</bibRefCitation>
), its conservation status is currently assessed as
<normalizedToken id="98C7C01CAFC5BEC2A3FBAC5AF1D95D82" originalValue="“Endangered”">&quot;Endangered&quot;</normalizedToken>
(D).
</paragraph>
</subSubSection>
<subSubSection id="11E65D158C0126A630C59C329CAFF7E1" pageId="0" pageNumber="1" type="taxonomic notes">
<paragraph id="69CCD0329F14CC993E8B6CBDCB127570" pageId="0" pageNumber="1">Taxonomic notes.</paragraph>
<paragraph id="4CDAC1824358900B9E6FE94376F00A8C" pageId="0" pageNumber="1">
Within
<taxonomicName id="8EC3630259ABFC4B5E15EF898F690698" class="Magnoliopsida" family="Begoniaceae" genus="Begonia" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Begonia subsp. sect." order="Cucurbitales" pageId="0" pageNumber="1" phylum="Tracheophyta" rank="section" section="Coelocentrum">Begonia sect. Coelocentrum</taxonomicName>
,
<taxonomicName id="44748CC987C83D6F17E6B28BF9821329" lsidName="B. catbensis" pageId="0" pageNumber="1" rank="species" species="catbensis">
<emphasis id="BEC3053979409C040122E534FFEF533F" italics="true" pageId="0" pageNumber="1">B. catbensis</emphasis>
</taxonomicName>
is apparently closest to
<taxonomicName id="89253DC7146315C8D58B3BB7FDB93A40" lsidName="B. melanobullata" pageId="0" pageNumber="1" rank="species" species="melanobullata">
<emphasis id="CCFCE383AB0F43B6B89D452AB7D9768C" italics="true" pageId="0" pageNumber="1">B. melanobullata</emphasis>
</taxonomicName>
and
<taxonomicName id="E0814960733CA58D4A2802E97D160A1D" lsidName="B. montaniformis" pageId="0" pageNumber="1" rank="species" species="montaniformis">
<emphasis id="A50DA9AC2DBDB563A99A666021C589F6" italics="true" pageId="0" pageNumber="1">B. montaniformis</emphasis>
</taxonomicName>
from Vietnam (
<bibRefCitation id="9A517A1083AC7F57A90EC5DE2BE0521C" DOI="https://doi.org/10.1186/s40529-015-0089-3" author="Peng, CI" journalOrPublisher="Botanical Studies" pageId="0" pageNumber="1" pagination="1 - 9" refId="B24" refString="Peng, CI, Lin, CW, Yang, HA, Kono, Y, Nguyen, HQ, 2015. Six new species of Begonia (Begoniaceae) from limestone areas in Northern Vietnam. Botanical Studies 56 (1): 1 - 9, DOI: https://doi.org/10.1186/s40529-015-0089-3" title="Six new species of Begonia (Begoniaceae) from limestone areas in Northern Vietnam." url="https://doi.org/10.1186/s40529-015-0089-3" volume="56" year="2015">Peng et al. 2015</bibRefCitation>
) considering the traits of the stipules and leaves, but strikingly different from them by having dendritic (vs. unbranched) hairs on the keeled mid-rib of the stipules, petioles and abaxial veins of the lamina, 5-7 (vs. 7-9) palmate veins, 2-3-branched inflorescence with 4-10 flowers (vs. 4-6 or 3-8 branched times, with above 20 flowers), glabrous (vs. tomentose or subglabrous) peduncles, glabrous (vs. setulose or velutilous) staminate flower tepals, 2 (vs. 3)-tepalled pistilate flowers and a glabrescent (vs. sessile glandular) ovary. It resembles
<taxonomicName id="FD0D64C671623F4055CADC7312DE9079" lsidName="B. fimbribracteata" pageId="0" pageNumber="1" rank="species" species="fimbribracteata">
<emphasis id="057FAB87381479038D0E5DADAB583909" italics="true" pageId="0" pageNumber="1">B. fimbribracteata</emphasis>
</taxonomicName>
(
<bibRefCitation id="840C33A8AC69191717D73A8E4339B21D" author="Shui, YM" journalOrPublisher="Acta Botanica Yunanica" pageId="0" pageNumber="1" pagination="355 - 374" refId="B29" refString="Shui, YM, Chen, WH, 2005. New data of sect. Coelocentrum (Begonia) in Begoniaceae. Acta Botanica Yunanica 27 (4): 355 - 374" title="New data of sect. Coelocentrum (Begonia) in Begoniaceae." volume="27" year="2005">Shui and Chen 2005</bibRefCitation>
) from China in having broadly ovate leaves with adaxial conical bullae on the lamina and serrulate-ciliolate lamina margin, 2-3-branched inflorescence and glabrous bracts with fimbriate margins: however,
<taxonomicName id="DB5B5CECFDB4B17C61A513D33B91271D" lsidName="B. catbensis" pageId="0" pageNumber="1" rank="species" species="catbensis">
<emphasis id="E66EDC4553695D71398CD1EFF680746C" italics="true" pageId="0" pageNumber="1">B. catbensis</emphasis>
</taxonomicName>
is clearly distinguished by its larger leaves, 10-13
<normalizedToken id="034C9444B3AEB9D239F1D777D2F3E1AB" originalValue="×">x</normalizedToken>
5-7 cm (vs. 6-7
<normalizedToken id="547A15E9DD0E87F04BB9027E74649AE8" originalValue="×">x</normalizedToken>
5-6 cm), acuminate (vs. rotundate) leaf apex and glabrescent (vs. hairy) peduncle, staminate flower tepals and ovary.
<taxonomicName id="D17891D44EDFE0747D6ACCA52180971E" authorityName="L. N. Dong, K. S. Nguyen &amp; Y. M. Shui" authorityYear="2021" class="Magnoliopsida" family="Begoniaceae" genus="Begonia" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Begonia catbensis" order="Cucurbitales" pageId="0" pageNumber="1" phylum="Tracheophyta" rank="species" species="catbensis">
<emphasis id="73212D9BEA9DF39E85F5EAA06AA049AD" italics="true" pageId="0" pageNumber="1">Begonia catbensis</emphasis>
</taxonomicName>
is easily distinguishable from
<taxonomicName id="38E4A0B763E90AC9245D6CB148CC5B5A" lsidName="B. nahangensis" pageId="0" pageNumber="1" rank="species" species="nahangensis">
<emphasis id="B15FEF7C5376FD9D55273F28D106F45F" italics="true" pageId="0" pageNumber="1">B. nahangensis</emphasis>
</taxonomicName>
(
<bibRefCitation id="D821760474D8A2ED99C3CD59AFCADBFD" author="Averyanov, LV" journalOrPublisher="Turczaninowia" pageId="0" pageNumber="1" pagination="5 - 32" refId="B1" refString="Averyanov, LV, Nguyen, HQ, 2012. Eleven new species of Begonia L. (Begoniaceae) from Laos and Vietnam. Turczaninowia 15 (2): 5 - 32" title="Eleven new species of Begonia L. (Begoniaceae) from Laos and Vietnam." volume="15" year="2012">Averyanov and Nguyen 2012</bibRefCitation>
) by its papery, asymmetric, broadly ovate leaves (vs. leathery, round to slightly asymmetric broadly oblique-ovate or oblique-reniform leaves) with an acuminate apex (vs. round to rarely broadly obtuse apex) and red setae 1.5-2 mm long along the margin (vs. white soft hairs, 3-5 mm long) and dendritic hairs (vs. villous or woolly villous hairs) on the petiole and abaxial veins and from
<taxonomicName id="2CDEF0A1C624C537111DF6AB77F8A71E" lsidName="B. variegata" pageId="0" pageNumber="1" rank="species" species="variegata">
<emphasis id="06CE92C09736172F0D375C1EF9049EA5" italics="true" pageId="0" pageNumber="1">B. variegata</emphasis>
</taxonomicName>
(
<bibRefCitation id="43010F87813AB97A643001581D12FBEC" author="Shui, YM" journalOrPublisher="Acta Botanica Yunanica" pageId="0" pageNumber="1" pagination="355 - 374" refId="B29" refString="Shui, YM, Chen, WH, 2005. New data of sect. Coelocentrum (Begonia) in Begoniaceae. Acta Botanica Yunanica 27 (4): 355 - 374" title="New data of sect. Coelocentrum (Begonia) in Begoniaceae." volume="27" year="2005">Shui and Chen 2005</bibRefCitation>
) in having dark green or rarely brown leaves, with slightly silvery green patches along the veins (vs. dark-purple stripe near the margin of the leaves and dark brown wide bands along main veins), dendritic hairy petioles (vs. hirsute-villous), glabrous (vs. glandular hairy) peduncles, outer tepals and ovary and greenish-white to white (vs. greenish or greenish-yellow) flowers. A detailed comparison of the new species with its most morphologically similar species is listed in Table
<tableCitation id="A297DE8CF7E896AF4F5F1FF1EB7B4600" captionStart="Table 1" captionStartId="T1" captionText="Table 1. Morphological comparison of Begonia catbensis, B. melanobullata, B. montaniformis (Peng et al. 2015) and B. fimbribracteata (Shui and Chen 2005)." httpUri="http://table.plazi.org/id/3CE0A3723AB3B3E79D3F89FAF2BCE5F5" pageId="0" pageNumber="1" tableUuid="3CE0A3723AB3B3E79D3F89FAF2BCE5F5">1</tableCitation>
. To help quickly identify
<taxonomicName id="B0754D11F362C7A63E72EE63619AA445" authorityName="L. N. Dong, K. S. Nguyen &amp; Y. M. Shui" authorityYear="2021" class="Magnoliopsida" family="Begoniaceae" genus="Begonia" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Begonia catbensis" order="Cucurbitales" pageId="0" pageNumber="1" phylum="Tracheophyta" rank="species" species="catbensis">
<emphasis id="91DC55673058AB6F38BEE65BBC316A07" italics="true" pageId="0" pageNumber="1">Begonia catbensis</emphasis>
</taxonomicName>
from its congers, a key to
<taxonomicName id="A549CA368C683FF87B5AF419F15F05BD" class="Magnoliopsida" family="Begoniaceae" genus="Begonia" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Begonia subsp. sect." order="Cucurbitales" pageId="0" pageNumber="1" phylum="Tracheophyta" rank="section" section="Coelocentrum">Begonia sect. Coelocentrum</taxonomicName>
with conical bullae on their leaves is provided.
</paragraph>
<caption id="3CE0A3723AB3B3E79D3F89FAF2BCE5F5" ID-Table-UUID="3CE0A3723AB3B3E79D3F89FAF2BCE5F5" httpUri="http://table.plazi.org/id/3CE0A3723AB3B3E79D3F89FAF2BCE5F5" pageId="0" pageNumber="1" start="Table 1" startId="T1">
<paragraph id="2CFC65CD9BDE747AA7CDA9A7B5C9F6F3" pageId="0" pageNumber="1">
<emphasis id="B39B95B5FD01E9CD0428A0FE4768C254" bold="true" pageId="0" pageNumber="1">Table 1.</emphasis>
Morphological comparison of
<taxonomicName id="26C3040D3D9F7BF690A490AFD3F2FA92" authorityName="L. N. Dong, K. S. Nguyen &amp; Y. M. Shui" authorityYear="2021" class="Magnoliopsida" family="Begoniaceae" genus="Begonia" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Begonia catbensis" order="Cucurbitales" pageId="0" pageNumber="1" phylum="Tracheophyta" rank="species" species="catbensis">
<emphasis id="F09336FEA53F900A25CE4800A934CD56" italics="true" pageId="0" pageNumber="1">Begonia catbensis</emphasis>
</taxonomicName>
,
<taxonomicName id="C2F20B7ABF314A4C13668BA3C2579027" lsidName="B. melanobullata" pageId="0" pageNumber="1" rank="species" species="melanobullata">
<emphasis id="824685E9A9CE13A4CA73343AA505EE78" italics="true" pageId="0" pageNumber="1">B. melanobullata</emphasis>
</taxonomicName>
,
<taxonomicName id="A6E48A9738062229C1302EB921E13C72" lsidName="B. montaniformis" pageId="0" pageNumber="1" rank="species" species="montaniformis">
<emphasis id="AC6B2A809FC7748C75224274AB747748" italics="true" pageId="0" pageNumber="1">B. montaniformis</emphasis>
</taxonomicName>
(
<bibRefCitation id="9D232FD687E9EE487D52450B42BF9CD4" DOI="https://doi.org/10.1186/s40529-015-0089-3" author="Peng, CI" journalOrPublisher="Botanical Studies" pageId="0" pageNumber="1" pagination="1 - 9" refId="B24" refString="Peng, CI, Lin, CW, Yang, HA, Kono, Y, Nguyen, HQ, 2015. Six new species of Begonia (Begoniaceae) from limestone areas in Northern Vietnam. Botanical Studies 56 (1): 1 - 9, DOI: https://doi.org/10.1186/s40529-015-0089-3" title="Six new species of Begonia (Begoniaceae) from limestone areas in Northern Vietnam." url="https://doi.org/10.1186/s40529-015-0089-3" volume="56" year="2015">Peng et al. 2015</bibRefCitation>
) and
<taxonomicName id="54640C9778D1611B63B9098CE440DBC3" lsidName="B. fimbribracteata" pageId="0" pageNumber="1" rank="species" species="fimbribracteata">
<emphasis id="98800A3EF5D45FEA805F1DE35D59D8ED" italics="true" pageId="0" pageNumber="1">B. fimbribracteata</emphasis>
</taxonomicName>
(
<bibRefCitation id="12B394FA79E6018BA72BEFC9E9D67057" author="Shui, YM" journalOrPublisher="Acta Botanica Yunanica" pageId="0" pageNumber="1" pagination="355 - 374" refId="B29" refString="Shui, YM, Chen, WH, 2005. New data of sect. Coelocentrum (Begonia) in Begoniaceae. Acta Botanica Yunanica 27 (4): 355 - 374" title="New data of sect. Coelocentrum (Begonia) in Begoniaceae." volume="27" year="2005">Shui and Chen 2005</bibRefCitation>
).
</paragraph>
</caption>
<paragraph id="ABEA4A5DFBDB756C802D7F23163F1191" pageId="0" pageNumber="1">
<table id="BE1E0197AB2716C62C5DB721965EF9A0" pageId="0" pageNumber="1">
<tr id="42FD7363876C6B920F4B15C4A8332840" pageId="0" pageNumber="1">
<th id="B91D662222985BB7982E13884356AAF8" colspan="1" pageId="0" pageNumber="1" rowspan="1">Characters</th>
<th id="5A57D1DE5C2ABBF6846A350A234D90AC" colspan="1" pageId="0" pageNumber="1" rowspan="1">
<taxonomicName id="EFEA1D75C2CDEAF3A29A48DBE77DB78C" lsidName="B. catbensis" pageId="0" pageNumber="1" rank="species" species="catbensis">
<emphasis id="C6A4A11DF5073E7329C641898A144409" italics="true" pageId="0" pageNumber="1">B. catbensis</emphasis>
</taxonomicName>
</th>
<th id="EF4072900F73980FBEA09E2961665DD8" colspan="1" pageId="0" pageNumber="1" rowspan="1">
<taxonomicName id="15AE530E3F96BBA938D252968BA47C3F" lsidName="B. melanobullata" pageId="0" pageNumber="1" rank="species" species="melanobullata">
<emphasis id="C898E0ED61FC7401E0B5FBB5886BEA08" italics="true" pageId="0" pageNumber="1">B. melanobullata</emphasis>
</taxonomicName>
</th>
<th id="9D3ABCA16DC71E51DD9E519CC1C9B0EA" colspan="1" pageId="0" pageNumber="1" rowspan="1">
<taxonomicName id="4B2990A06A6866E82B7B2E5E0FC61D8E" lsidName="B. montaniformis" pageId="0" pageNumber="1" rank="species" species="montaniformis">
<emphasis id="D202330E27CE703FBE06D333F2A590C4" italics="true" pageId="0" pageNumber="1">B. montaniformis</emphasis>
</taxonomicName>
</th>
<th id="B472BCF27BCDE7FE32AEFBFB6EB51EBF" colspan="1" pageId="0" pageNumber="1" rowspan="1">
<taxonomicName id="993EAD30DF7F43CD837E9E6BD8C3EF00" lsidName="B. fimbribracteata" pageId="0" pageNumber="1" rank="species" species="fimbribracteata">
<emphasis id="709CE90EC285A0F4474F8D0E6E875473" italics="true" pageId="0" pageNumber="1">B. fimbribracteata</emphasis>
</taxonomicName>
</th>
</tr>
<tr id="73FE3ADBE2530DAC73947C1B76D41ADB" pageId="0" pageNumber="1">
<td id="9C13115931325AAE4A70FDCC53E9D368" colspan="1" pageId="0" pageNumber="1" rowspan="1">Stipule</td>
<td id="3390005C0778B805E693AE3AE94AE4CC" colspan="1" pageId="0" pageNumber="1" rowspan="1">glabrous, except for the keeled midrib with sparse dendritic hairs</td>
<td id="4DA2028541E69EE6384F62F4B6FC3FB2" colspan="1" pageId="0" pageNumber="1" rowspan="1">glabrous, except for the keeled midrib with unbranched hairs</td>
<td id="5535DC4BA7792F9DBEDBE11CFF4351EA" colspan="1" pageId="0" pageNumber="1" rowspan="1">glabrous, except for the keeled midrib with unbranched hairs</td>
<td id="77DE1B1FD6AF7F1E1EDF309102781509" colspan="1" pageId="0" pageNumber="1" rowspan="1">subglabrous</td>
</tr>
<tr id="613A9CA63D24DDB986EE99B975E670CC" pageId="0" pageNumber="1">
<td id="0058666D43DBC7DD71A901E4730386AC" colspan="1" pageId="0" pageNumber="1" rowspan="1">Petiole</td>
<td id="FEE387B012C8A518E7571F8798DFE37D" colspan="1" pageId="0" pageNumber="1" rowspan="1">densely covered by reddish dendritic trichomes</td>
<td id="081898094E6B14B7FB1E2CCEDD90A31E" colspan="1" pageId="0" pageNumber="1" rowspan="1">densely white villous when young, brownish tomentose or subglabrous later</td>
<td id="FBB82726FA8D4AB8E242542999F44986" colspan="1" pageId="0" pageNumber="1" rowspan="1">densely white villous</td>
<td id="AF971AE03D72EAF1AE010FF0AE1B73AE" colspan="1" pageId="0" pageNumber="1" rowspan="1">sparse strigae 1-2 mm long</td>
</tr>
<tr id="F0688A471714E39A62F91B3539218A35" pageId="0" pageNumber="1">
<td id="08DD1D854037039EE3345F5943604EB2" colspan="1" pageId="0" pageNumber="1" rowspan="1">Leaf color</td>
<td id="345B5BAF4D626C6DE23E7F0EE62F7410" colspan="1" pageId="0" pageNumber="1" rowspan="1">adaxially dark green or rarely brown, with slightly silvery green patches along veins; abaxially brownish red to red-brown (maroon)</td>
<td id="08BC98D8E21E8A21E4E93CC8F09D7176" colspan="1" pageId="0" pageNumber="1" rowspan="1">adaxially emerald green to yellowish green; abaxially pale green, reddish on veins and bullae</td>
<td id="10E4680C38FFF0372095FFD3C4DE6681" colspan="1" pageId="0" pageNumber="1" rowspan="1">adaxially blackish-malachite green, purplish-olive or dark bluish-brown, with silvery green zone along main veins; abaxially pale green, reddish</td>
<td id="88368E0185505434E83728882E5836E5" colspan="1" pageId="0" pageNumber="1" rowspan="1">adaxially green or brown, with white dots along major veins; abaxially reddish</td>
</tr>
<tr id="651572A0BB6DE2EE3765B95F3C85FAB4" pageId="0" pageNumber="1">
<td id="A708F8BE1D2B5858D61617D6C31F7FDD" colspan="1" pageId="0" pageNumber="1" rowspan="1">Leaf bulla</td>
<td id="2B3A749A7FCF950482054D61FC3CE0A8" colspan="1" pageId="0" pageNumber="1" rowspan="1">tipped by a reddish seta 1.5-2 mm long</td>
<td id="20533306A174E7BD84B73DE8ED5C223C" colspan="1" pageId="0" pageNumber="1" rowspan="1">tipped by a velutinous hair 6-10 mm long</td>
<td id="90F9A4450BE5E4E91FADBE849C8D6578" colspan="1" pageId="0" pageNumber="1" rowspan="1">tipped by 2-6 peak-like hispidulous protrusions</td>
<td id="626DC703F34D709C4247547AD72073A4" colspan="1" pageId="0" pageNumber="1" rowspan="1">tipped by a seta 1.5-2 mm long</td>
</tr>
<tr id="9312E103373F93800F48A9AC47A057D3" pageId="0" pageNumber="1">
<td id="7AD5EC552CF2CE08D21770F9DCF744E9" colspan="1" pageId="0" pageNumber="1" rowspan="1">Leaf margin</td>
<td id="4DC3612B21BEE08A26288A4B10F83FAA" colspan="1" pageId="0" pageNumber="1" rowspan="1">repand, serrulate and ciliolate</td>
<td id="27492DB995336A323D21B34170C1E33F" colspan="1" pageId="0" pageNumber="1" rowspan="1">repand villous when juvenile</td>
<td id="72D9BEA8025153FF62A7F6C4E5A41E16" colspan="1" pageId="0" pageNumber="1" rowspan="1">repand to shallowly denticulate and ciliate</td>
<td id="9D07F3FAAFBCB81E16F65AE8A18BF413" colspan="1" pageId="0" pageNumber="1" rowspan="1">serrulate and ciliate</td>
</tr>
<tr id="9655BF7E66FCD9665B9F01E73E042A69" pageId="0" pageNumber="1">
<td id="D729F3312317C9D0181210259172409D" colspan="1" pageId="0" pageNumber="1" rowspan="1">Leaf apex</td>
<td id="42C57715BF1F9215CDD52E7CFA07417D" colspan="1" pageId="0" pageNumber="1" rowspan="1">acuminate</td>
<td id="7D29B76C6D7A07E82E8D6D476284C622" colspan="1" pageId="0" pageNumber="1" rowspan="1">caudate</td>
<td id="06389D62490503698837A1E810EEFC2F" colspan="1" pageId="0" pageNumber="1" rowspan="1">acute to acuminate</td>
<td id="B28DCD90A1544FBD663615C163A79FF0" colspan="1" pageId="0" pageNumber="1" rowspan="1">rounded</td>
</tr>
<tr id="E8D738DCBBB085FB381182E0FD9DA212" pageId="0" pageNumber="1">
<td id="60AD45A5A29DFCDA4911E7CA8688A007" colspan="1" pageId="0" pageNumber="1" rowspan="1">Venation</td>
<td id="FE24F84B45F41ABAD613B13410616D59" colspan="1" pageId="0" pageNumber="1" rowspan="1">5-7-veined palmate</td>
<td id="CBA88B6A9DF2A3039936158E6788AB7C" colspan="1" pageId="0" pageNumber="1" rowspan="1">7-9-veined palmate</td>
<td id="01DBD96ABBC70B02B54A43AD0F47D4EB" colspan="1" pageId="0" pageNumber="1" rowspan="1">7-9-veined palmate</td>
<td id="8377D23DB26D7D9E851832FD70AE2F8B" colspan="1" pageId="0" pageNumber="1" rowspan="1">6-7-veined palmate</td>
</tr>
<tr id="317CF95A0AE8F8A774F47901CDEDD1B5" pageId="0" pageNumber="1">
<td id="0225915F0740D997B72C851DE0A3445F" colspan="1" pageId="0" pageNumber="1" rowspan="1">Vein on abaxial surface</td>
<td id="D36EABE94FB642F2563E08D3A5DF542E" colspan="1" pageId="0" pageNumber="1" rowspan="1">covered by reddish dendritic hairs</td>
<td id="8827CD81C61EFEBBE1F82001BEAA5291" colspan="1" pageId="0" pageNumber="1" rowspan="1">brownish tomentose</td>
<td id="1CD436B4235BE592B6E001D1F8735F0A" colspan="1" pageId="0" pageNumber="1" rowspan="1">densely brownish-white tomentose</td>
<td id="07E32CB2B35D5D80A984A04D04A15057" colspan="1" pageId="0" pageNumber="1" rowspan="1">covered by strigae 1-1.5 mm long</td>
</tr>
<tr id="66FACD13FC30367FB1A0A1E4232C7C24" pageId="0" pageNumber="1">
<td id="315111925CE306440B2C8D488804EB68" colspan="1" pageId="0" pageNumber="1" rowspan="1">Inflorescence</td>
<td id="E570A9DFB96E27D825BDD56C8F9D80A1" colspan="1" pageId="0" pageNumber="1" rowspan="1">branched 2-3 times, 4-10 flowers</td>
<td id="EEC03AE518D2AF04A4DDB08D6AF43493" colspan="1" pageId="0" pageNumber="1" rowspan="1">branched 4-6 times, numerous flowers (&gt;20)</td>
<td id="4DBE640EB31AF2AAA6364A99C7D5D53B" colspan="1" pageId="0" pageNumber="1" rowspan="1">branched 3-8 times, numerous flowers, up to above 30</td>
<td id="E3C6A4784CFDCC7E7CB1F0491E45A20F" colspan="1" pageId="0" pageNumber="1" rowspan="1">branched 2-3, ca. 5 flowers</td>
</tr>
<tr id="21C8DB1BE73F4FBA11F945D5B84CB7D0" pageId="0" pageNumber="1">
<td id="BF51A652B81E83D129EE790F3D8B7D78" colspan="1" pageId="0" pageNumber="1" rowspan="1">Peduncle</td>
<td id="8DCB584A1D61A331D5FCA44388532B13" colspan="1" pageId="0" pageNumber="1" rowspan="1">glabrous</td>
<td id="71D68F44B5D0798B806E443FCE2E1284" colspan="1" pageId="0" pageNumber="1" rowspan="1">tomentose</td>
<td id="0B09C1BA193CC04B1A2AB94CB20C8984" colspan="1" pageId="0" pageNumber="1" rowspan="1">tomentose to subglabrous</td>
<td id="98AC37C4B64DC3291F654804AA84336C" colspan="1" pageId="0" pageNumber="1" rowspan="1">sparsely hairy</td>
</tr>
<tr id="380CFC5335C529F45A47F44B42E1F08A" pageId="0" pageNumber="1">
<td id="AF8B4A2362F280148491DDE121E8E809" colspan="1" pageId="0" pageNumber="1" rowspan="1">Bract</td>
<td id="9799D97C016FF5572BAC7B426D84F8CC" colspan="1" pageId="0" pageNumber="1" rowspan="1">glabrous, margin serrate-fimbriate with cilia 1.5-3 mm long</td>
<td id="D9263D132885DF0884CA2CD716DD5CA2" colspan="1" pageId="0" pageNumber="1" rowspan="1">glabrous, margin tomentose</td>
<td id="27412DB3B4B2B36530E927AAD67070C0" colspan="1" pageId="0" pageNumber="1" rowspan="1">abaxially velutinous along midrib, margin tomentose</td>
<td id="4FF43D7F203F94F54AF5A41C24336572" colspan="1" pageId="0" pageNumber="1" rowspan="1">glabrous, margin serrulate-fimbriate with cilia 1-2 mm long</td>
</tr>
<tr id="FE96ECEA9BD9064E7C4C925443EC0E61" pageId="0" pageNumber="1">
<td id="D01584BD909C0A513E61D36692292BE1" colspan="1" pageId="0" pageNumber="1" rowspan="1">Staminate flower tepal</td>
<td id="680569C6CD0FC7EDE24E1B619A974D29" colspan="1" pageId="0" pageNumber="1" rowspan="1">abaxially glabrous</td>
<td id="8B61D8107EEBC3E271812DCD249EDA6D" colspan="1" pageId="0" pageNumber="1" rowspan="1">abaxially sparsely setulose</td>
<td id="245814ACC3BAE62BFCE01B484F78ED31" colspan="1" pageId="0" pageNumber="1" rowspan="1">abaxially sparsely velutinous</td>
<td id="78952E7F0AA8CBF77A0D843D0B3D5C4F" colspan="1" pageId="0" pageNumber="1" rowspan="1">abaxially sparsely pilose</td>
</tr>
<tr id="C9D1579ABA0E5A56E0A1A9F6B889C890" pageId="0" pageNumber="1">
<td id="0EA8B9FF8B932117D38B447D7CB485CC" colspan="1" pageId="0" pageNumber="1" rowspan="1">Pistillate flower tepal number</td>
<td id="6FF76BE7D9ECE065C4F1A902E4D2F3E9" colspan="1" pageId="0" pageNumber="1" rowspan="1">2</td>
<td id="BD46D0F2AB926F272D32C9CEC5E73A3E" colspan="1" pageId="0" pageNumber="1" rowspan="1">3</td>
<td id="18FC46C39E01533B1FEEFDEDE5015F27" colspan="1" pageId="0" pageNumber="1" rowspan="1">3</td>
<td id="B36674FAF55097FF443B4C17D63064D0" colspan="1" pageId="0" pageNumber="1" rowspan="1">3</td>
</tr>
<tr id="89CAF997FC2ED2D2F7562983AD876B7E" pageId="0" pageNumber="1">
<td id="C510742290A7D0742B933AAD919CD8F0" colspan="1" pageId="0" pageNumber="1" rowspan="1">Tepal margin</td>
<td id="81BB2337322C19696745A942FB3A2B8C" colspan="1" pageId="0" pageNumber="1" rowspan="1">sparsely ciliolate below middle</td>
<td id="813E615225C856DC21EB0FA7722F6F72" colspan="1" pageId="0" pageNumber="1" rowspan="1">entire, not hairy</td>
<td id="82E84EE64D7CA4949FDECFE1E37A42BB" colspan="1" pageId="0" pageNumber="1" rowspan="1">entire, not hair</td>
<td id="C8E6E128202B07FC5739E8CB412DF568" colspan="1" pageId="0" pageNumber="1" rowspan="1">entire, not hairy</td>
</tr>
<tr id="9C285E2BC7959751DAD801E2F8DC98D4" pageId="0" pageNumber="1">
<td id="78220812CA405775428C730FF162C1AE" colspan="1" pageId="0" pageNumber="1" rowspan="1">Tepal color</td>
<td id="E5AC5A86CF5B7A0409EB833F2D5656C5" colspan="1" pageId="0" pageNumber="1" rowspan="1">greenish white to white on both surface when opened</td>
<td id="F286C6C8FAEA70996955F5ACE377062D" colspan="1" pageId="0" pageNumber="1" rowspan="1">adaxially yellowish-pinkinsh, abaxially reddish</td>
<td id="A1414BE918D63D6E3F224326DAF1E198" colspan="1" pageId="0" pageNumber="1" rowspan="1">adaxially yellowish-greenish, abaxially reddish-green</td>
<td id="A38EA2184DB184BEB90589C51D4031CD" colspan="1" pageId="0" pageNumber="1" rowspan="1">pink or white</td>
</tr>
<tr id="2F36F1104C302598101552CA9C00C8A8" pageId="0" pageNumber="1">
<td id="C43C33051ECA8C03D41CCBA43D16F81B" colspan="1" pageId="0" pageNumber="1" rowspan="1">Ovary</td>
<td id="48E976AC6CF381AE7504F44DDBD8DBFC" colspan="1" pageId="0" pageNumber="1" rowspan="1">glabrescent</td>
<td id="F6CE2C36C3D4FD83F39592893236D3AC" colspan="1" pageId="0" pageNumber="1" rowspan="1">sparsely dotted with sessile glands</td>
<td id="31EF8A59D29055D2E4D36EB3490CDFE3" colspan="1" pageId="0" pageNumber="1" rowspan="1">sparsely sessile-glandular</td>
<td id="89A4E1C0BA6044023DB27C1003181827" colspan="1" pageId="0" pageNumber="1" rowspan="1">sparsely hairy</td>
</tr>
</table>
</paragraph>
<paragraph id="D0ED66788B265BE0AEED13F6923392BA" pageId="0" pageNumber="1">
Amongst
<taxonomicName id="723F9041C53BF40FB33758252ADCE90B" class="Magnoliopsida" family="Begoniaceae" genus="Begonia" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Begonia subsp. sect." order="Cucurbitales" pageId="0" pageNumber="1" phylum="Tracheophyta" rank="section" section="Coelocentrum">Begonia sect. Coelocentrum</taxonomicName>
with a rugulose leaf surface,
<taxonomicName id="04FEB7C9661D88EC7DDF6A430D9806C7" authorityName="L. N. Dong, K. S. Nguyen &amp; Y. M. Shui" authorityYear="2021" class="Magnoliopsida" family="Begoniaceae" genus="Begonia" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Begonia catbensis" order="Cucurbitales" pageId="0" pageNumber="1" phylum="Tracheophyta" rank="species" species="catbensis">
<emphasis id="11916337BC5CAAD95C05771F8C26BED4" italics="true" pageId="0" pageNumber="1">Begonia catbensis</emphasis>
</taxonomicName>
somewhat resembles
<taxonomicName id="591AF9F9294528390A085623E39B127B" lsidName="B. ningmingensis" pageId="0" pageNumber="1" rank="species" species="ningmingensis">
<emphasis id="0308B84F23A90E301E95087B3296F764" italics="true" pageId="0" pageNumber="1">B. ningmingensis</emphasis>
</taxonomicName>
D.Fang, Y.G.Wei &amp; C.I.Peng and
<taxonomicName id="91F688AA4F910BDBD4BA3BC318EA5BB0" lsidName="B. retinervia" pageId="0" pageNumber="1" rank="species" species="retinervia">
<emphasis id="A7BF891834A06ADD7A613170A06DC1D8" italics="true" pageId="0" pageNumber="1">B. retinervia</emphasis>
</taxonomicName>
D.Fang, D.H.Qin &amp; C.I.Peng from China (
<bibRefCitation id="DCEB329387DAC1D7992418224CDF7E56" DOI="https://doi.org/10.1111/j.1095-8339.2008.00824.x" author="Fang, D" journalOrPublisher="Botanical Studies" pageId="0" pageNumber="1" pagination="97 - 110" refId="B5" refString="Fang, D, Ku, SM, Wei, YG, Qin, DH, Peng, CI, 2006. Three new taxa of Begonia (sect. Coelocentrum, Begoniaceae) from limestone areas in Guangxi, China. Botanical Studies 47: 97 - 110, DOI: https://doi.org/10.1111/j.1095-8339.2008.00824.x" title="Three new taxa of Begonia (sect. Coelocentrum, Begoniaceae) from limestone areas in Guangxi, China." url="https://doi.org/10.1111/j.1095-8339.2008.00824.x" volume="47" year="2006">Fang et al. 2006</bibRefCitation>
) in leaf shape, with white maculation of the adaxial leaf surface and tepals with ciliolate margins, but it is strikingly differentiated from them in having a conically bullate (vs. rugulose) leaf surface, adaxially glabrous (vs. subsessile glandular) stipules with dendritic hairs on the mid-rib (vs. villous or glabrous), dendritic (vs. villous) petioles and abaxial veins, glabrous (vs. sparsely minute subsessile glandular) abaxial surface of staminate flower tepals and ovary and 2 (vs. 3) tepals of pistillate flower.
</paragraph>
</subSubSection>
</treatment>
</document>