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<document id="CC30B99429FE42261C73DC48140CECDD" ID-CLB-Dataset="56370" ID-DOI="10.11646/phytotaxa.600.1.3" ID-GBIF-Dataset="af52055d-1186-4f5d-9954-771ab581ff6a" ID-ISSN="1179-3163" ID-Zenodo-Dep="8054131" IM.bibliography_approvedBy="felipe" IM.illustrations_approvedBy="jonas" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_approvedBy="jonas" IM.taxonomicNames_approvedBy="felipe" IM.treatmentCitations_approvedBy="jonas" IM.treatments_approvedBy="jonas" checkinTime="1687159061550" checkinUser="plazi" docAuthor="Bon, Trinh Ngoc, Do, Thi Thanh Ha, Le, Thi Hanh, Lo, Minh Duc, Zimmer, Heidi &amp; Lin, Che- Wei" docDate="2023" docId="03D22242392B2B26B5980E23FB99FA41" docLanguage="en" docName="phytotaxa.600.1.3.pdf" docOrigin="Phytotaxa 600 (1)" docSource="http://dx.doi.org/10.11646/phytotaxa.600.1.3" docStyle="DocumentStyle:96748F8F1B6C902996E134952A3A36B9.7:Phytotaxa.2014-.journal_article" docStyleId="96748F8F1B6C902996E134952A3A36B9" docStyleName="Phytotaxa.2014-.journal_article" docStyleVersion="7" docTitle="Begonia saxifragoides T. N. Bon &amp; C. W. Lin. A. Habits 2023, sp. nov." docType="treatment" docVersion="7" lastPageNumber="22" masterDocId="FFEB5A3A392B2B20B5100952FFD1FFAD" masterDocTitle="Begonia saxifragoides sp. nov. and two new records of Begonia (Begoniaceae) from northern Vietnam" masterLastPageNumber="24" masterPageNumber="16" pageNumber="16" updateTime="1699525644506" updateUser="plazi" zenodo-license-figures="UNSPECIFIED" zenodo-license-treatments="UNSPECIFIED">
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<mods:title id="202C3274C8AFB9755F97074FA221DE98">Begonia saxifragoides sp. nov. and two new records of Begonia (Begoniaceae) from northern Vietnam</mods:title>
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<mods:namePart id="7BB3B4CAD0F6FE970363A7A60136B674">Bon, Trinh Ngoc</mods:namePart>
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<mods:affiliation id="FB259936E852967411DA8EB73B4E6F8B">Department of Silviculture Foundation and Forest Phytodiversity, Silviculture Research Institute, Vietnamese Academy of Forest Sciences, 46, Duc Thang Ward, Bac Tu Liem, Hanoi, Vietnam. &amp; hanhlamhoc @ gmail. com; https: // orcid. org / 0000 - 0001 - 8194 - 3331</mods:affiliation>
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<mods:affiliation id="557558787A2EBBBEE1032C0C2B42B54A">Forest Research Centre, Southern Cross University, Military Rd, Lismore, NSW, Australia. &amp; heidi. zimmer @ gmail. com; https: // orcid. org / 0000 - 0002 - 8496 - 7360</mods:affiliation>
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<emphasis id="B90F4F46392B2B20B5980E23FE5BF821" bold="true" box="[136,394,1905,1932]" italics="true" pageId="0" pageNumber="16">Begonia saxifragoides</emphasis>
T.N.Bon &amp; C.W.Lin
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,
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<taxonomicNameLabel id="A23CF23D392B2B20B7920E20FD06F826" box="[642,727,1906,1931]" pageId="0" pageNumber="16" rank="species">sp. nov.</taxonomicNameLabel>
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§
<taxonomicName id="4C7BE8D7392B2B20B7E20E23FC58F826" box="[754,905,1905,1931]" class="Magnoliopsida" family="Begoniaceae" genus="Platycentrum" higherTaxonomySource="GBIF" kingdom="Plantae" order="Cucurbitales" pageId="0" pageNumber="16" phylum="Tracheophyta" rank="genus">
<emphasis id="B90F4F46392B2B20B7E20E23FC58F826" box="[754,905,1905,1931]" italics="true" pageId="0" pageNumber="16">Platycentrum</emphasis>
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(
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&amp;
<figureCitation id="13408FD1392B2B20B1190E20FBC8F821" box="[1033,1049,1906,1932]" captionStart="FIGURE 3" captionStartId="3.[136,234,1935,1957]" captionTargetBox="[151,1436,190,1911]" captionTargetId="figure-21@3.[151,1436,190,1911]" captionTargetPageId="3" captionText="FIGURE 3. Begonia saxifragoides T.N.Bon &amp; C.W.Lin. A. Habits; B. Leaf, lower surface; C, D. Portion of leaf adaxial and abaxial surfaces; E. Bracts; F. Inflorescences, also showing bracts; G. Staminate flowers, face, back and side views; H. Pistillate flowers, face and back views; I. Capsule; J. Cross section of capsule. All photos by Trinh Ngoc Bon" figureDoi="http://doi.org/10.5281/zenodo.8054141" httpUri="https://zenodo.org/record/8054141/files/figure.png" pageId="0" pageNumber="16">3</figureCitation>
).
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<emphasis id="B90F4F46392B2B20B5980EE8FF13F862" bold="true" box="[136,194,1978,1999]" pageId="0" pageNumber="16">Type:</emphasis>
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.
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:
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,
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,
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<elevation id="00567467392B2B20B6A60EE8FBD6F87D" box="[950,1031,1978,2000]" metricMagnitude="3" metricUnit="m" metricValue="1.9" pageId="0" pageNumber="16" unit="m" value="1900.0">1,900 m</elevation>
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elevation,
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<collectorName id="268EF682392B2B20B02D0EE8FF37F85E" pageId="0" pageNumber="16">Trinh Ngoc Bon</collectorName>
,
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,
<collectorName id="268EF682392B2B20B4A30E8FFDE5F85E" box="[435,564,2013,2035]" pageId="0" pageNumber="16">Thi Hanh Le</collectorName>
,
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,
<collectorName id="268EF682392B2B20B7C40E8FFC8CF85E" box="[724,861,2013,2035]" pageId="0" pageNumber="16">Heidi Zimmer</collectorName>
,
<collectorName id="268EF682392B2B20B6790E8CFC22F85F" box="[873,1011,2013,2035]" pageId="0" pageNumber="16">Lo Van Chieu</collectorName>
,
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<collectorName id="268EF682392B2B20B15E0E8FFB5BF85F" box="[1102,1162,2013,2034]" pageId="0" pageNumber="16">Giang</collectorName>
&amp;
<collectorName id="268EF682392B2B20B1BE0E8FFB0FF85F" box="[1198,1246,2013,2034]" pageId="0" pageNumber="16">Sung</collectorName>
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Chu
<specimenCode id="DBDD3B2F392B2B20B03E0E8FFA7DF85F" box="[1326,1452,2013,2034]" collectionCode="SCU" country="China" httpUri="http://biocol.org/urn:lsid:biocol.org:col:14001" lsid="urn:lsid:biocol.org:col:14001" name="Shandong Christian University" pageId="0" pageNumber="16" type="Herbarium">SCU2022-03</specimenCode>
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(
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.
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<caption id="DF04C3DC392A2B21B5980A89FE6AFBB8" ID-DOI="http://doi.org/10.5281/zenodo.8054135" ID-Zenodo-Dep="8054135" httpUri="https://zenodo.org/record/8054135/files/figure.png" pageId="1" pageNumber="17" startId="1.[136,234,987,1009]" targetBox="[166,1421,189,957]" targetPageId="1" targetType="figure">
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<emphasis id="B90F4F46392A2B21B5980A89FED4FC5D" bold="true" box="[136,261,987,1009]" pageId="1" pageNumber="17">FIGURE 1.</emphasis>
Distribution map of
<taxonomicName id="4C7BE8D7392A2B21B4C50A89FD65FC5D" authorityName="T. N. Bon &amp; C. W. Lin. A. Habits" authorityYear="2023" box="[469,692,986,1008]" class="Magnoliopsida" family="Begoniaceae" genus="Begonia" kingdom="Plantae" order="Cucurbitales" pageId="1" pageNumber="17" phylum="Tracheophyta" rank="species" species="saxifragoides">
<emphasis id="B90F4F46392A2B21B4C50A89FD65FC5D" bold="true" box="[469,692,986,1008]" italics="true" pageId="1" pageNumber="17">Begonia saxifragoides</emphasis>
</taxonomicName>
(yellow star),
<taxonomicName id="4C7BE8D7392A2B21B6560A89FC1FFC5D" authorityName="T.S.Hoang, C.W.Lin.A &amp; B.Habit" authorityYear="2022" box="[838,974,986,1008]" class="Magnoliopsida" family="Begoniaceae" genus="Begonia" kingdom="Plantae" order="Cucurbitales" pageId="1" pageNumber="17" phylum="Tracheophyta" rank="species" species="minhaniae">
<emphasis id="B90F4F46392A2B21B6560A89FC1FFC5D" bold="true" box="[838,974,986,1008]" italics="true" pageId="1" pageNumber="17">B. minhaniae</emphasis>
</taxonomicName>
(blue circle),
<taxonomicName id="4C7BE8D7392A2B21B14B0A89FB38FC5D" authorityName="C. B. Clarke. A. Habit" authorityYear="1890" box="[1115,1257,986,1008]" class="Magnoliopsida" family="Begoniaceae" genus="Begonia" kingdom="Plantae" order="Cucurbitales" pageId="1" pageNumber="17" phylum="Tracheophyta" rank="species" species="adscendens">
<emphasis id="B90F4F46392A2B21B14B0A89FB38FC5D" bold="true" box="[1115,1257,986,1008]" italics="true" pageId="1" pageNumber="17">B. adscendens</emphasis>
</taxonomicName>
and
<taxonomicName id="4C7BE8D7392A2B21B00C0A89FAACFC5D" authorityName="Y. H. Tan &amp; H. B. Ding. A, B. Habit" authorityYear="2020" box="[1308,1405,986,1008]" class="Magnoliopsida" family="Begoniaceae" genus="Begonia" kingdom="Plantae" order="Cucurbitales" pageId="1" pageNumber="17" phylum="Tracheophyta" rank="species" species="laotica">
<emphasis id="B90F4F46392A2B21B00C0A89FAACFC5D" bold="true" box="[1308,1405,986,1008]" italics="true" pageId="1" pageNumber="17">B. laotica</emphasis>
</taxonomicName>
(red triangular) in northern Vietnam.
</paragraph>
</caption>
<subSubSection id="C361C0DF392A2B21B5980D11FC6CF784" pageId="1" pageNumber="17" type="description">
<paragraph id="8BC49354392A2B21B5980D11FC6CF784" blockId="1.[136,1452,1091,2090]" pageId="1" pageNumber="17">
Monoecious rhizomatous herb.
<emphasis id="B90F4F46392A2B21B4E00D11FD8BFBF0" bold="true" box="[496,602,1091,1117]" pageId="1" pageNumber="17">Rhizome</emphasis>
stout, greyish-red to reddish-brown,
<quantity id="4C833EB1392A2B21B1130D11FBA7FBF3" box="[1027,1142,1091,1118]" metricMagnitude="-1" metricUnit="m" metricValue="1.25" metricValueMax="1.5" metricValueMin="1.0" pageId="1" pageNumber="17" unit="cm" value="12.5" valueMax="15.0" valueMin="10.0">1015 cm</quantity>
or longer,
<quantity id="4C833EB1392A2B21B1E50D11FAB5FBF3" box="[1269,1380,1091,1118]" metricMagnitude="-2" metricUnit="m" metricValue="1.0" metricValueMax="1.2" metricValueMin="0.8" pageId="1" pageNumber="17" unit="mm" value="10.0" valueMax="12.0" valueMin="8.0">812 mm</quantity>
thick, internodes congested, densely pilose or villous.
<emphasis id="B90F4F46392A2B21B7810D35FD21FB2C" bold="true" box="[657,752,1127,1153]" pageId="1" pageNumber="17">Stipules</emphasis>
persistent, reddish-brown, triangular,
<emphasis id="B90F4F46392A2B21B1810D3AFB7AFB2C" box="[1169,1195,1128,1153]" italics="true" pageId="1" pageNumber="17">ca</emphasis>
. 5 ×
<quantity id="4C833EB1392A2B21B1CD0D35FACCFB2F" box="[1245,1309,1127,1154]" metricMagnitude="-3" metricUnit="m" metricValue="6.0" pageId="1" pageNumber="17" unit="mm" value="6.0">6 mm</quantity>
, herbaceous, strongly keeled, midrib scattered with hirsute, margin entire, apex aristate, arista
<quantity id="4C833EB1392A2B21B13A0DD9FB4FFB0B" box="[1066,1182,1163,1190]" metricMagnitude="-3" metricUnit="m" metricValue="3.75" metricValueMax="5.0" metricValueMin="2.5" pageId="1" pageNumber="17" unit="mm" value="3.75" valueMax="5.0" valueMin="2.5">2.55 mm</quantity>
long.
<emphasis id="B90F4F46392A2B21B1F80DD9FAEBFB08" bold="true" box="[1256,1338,1163,1189]" pageId="1" pageNumber="17">Leaves</emphasis>
alternate, petiole terete, greyish-red to pale brownish-red,
<quantity id="4C833EB1392A2B21B7A90DFDFCCEFB67" box="[697,799,1199,1226]" metricMagnitude="-1" metricUnit="m" metricValue="1.1" metricValueMax="1.3" metricValueMin="0.9" pageId="1" pageNumber="17" unit="cm" value="11.0" valueMax="13.0" valueMin="9.0">913 cm</quantity>
long,
<quantity id="4C833EB1392A2B21B67D0DFDFC28FB67" box="[877,1017,1199,1226]" metricMagnitude="-3" metricUnit="m" metricValue="4.0" metricValueMax="4.5" metricValueMin="3.5" pageId="1" pageNumber="17" unit="mm" value="4.0" valueMax="4.5" valueMin="3.5">3.54.5 mm</quantity>
diameter, densely rosy pink to white pilose or villous, turning pale brown with age; leaf blade asymmetric, oblique, orbicular to reniform, 6.58.3 ×
<quantity id="4C833EB1392A2B21B07C0D81FF7CFABF" metricMagnitude="-2" metricUnit="m" metricValue="7.85" metricValueMax="9.0" metricValueMin="6.7" pageId="1" pageNumber="17" unit="cm" value="7.85" valueMax="9.0" valueMin="6.7">6.79 cm</quantity>
, broadside
<quantity id="4C833EB1392A2B21B43D0DA5FE7AFABF" box="[301,427,1271,1298]" metricMagnitude="-2" metricUnit="m" metricValue="4.5" metricValueMax="5.4" metricValueMin="3.6" pageId="1" pageNumber="17" unit="cm" value="4.5" valueMax="5.4" valueMin="3.6">3.65.4 cm</quantity>
wide, basal lobes cordate,
<quantity id="4C833EB1392A2B21B7CC0DA5FC88FABF" box="[732,857,1271,1298]" metricMagnitude="-2" metricUnit="m" metricValue="1.85" metricValueMax="2.2" metricValueMin="1.5" pageId="1" pageNumber="17" unit="cm" value="1.85" valueMax="2.2" valueMin="1.5">1.52.2 cm</quantity>
long, apex rounded, margin denticulate to crenulate, recurved and undulated, with a line of magenta to white pilose or puberulous hairs; leaf thinly coriaceous, succulent, adaxially glabrous or subglabrous, greyish-green to olive green, venation blackish-green and slightly impressed; abaxially pale reddish-green to magenta; venation basally
<emphasis id="B90F4F46392A2B21B60A0C36FCE5FAD0" box="[794,820,1380,1405]" italics="true" pageId="1" pageNumber="17">ca</emphasis>
. eight palmate, primary veins branching dichotomously or nearly so, tertiary veins reticulate; all veins densely pink to magenta pilose or puberulous on abaxial surface.
<emphasis id="B90F4F46392A2B21B5980CF9FEE0FA68" bold="true" box="[136,305,1451,1477]" pageId="1" pageNumber="17">Inflorescences</emphasis>
axillary, bisexual, cymose arising directly from the rhizome,
<emphasis id="B90F4F46392A2B21B6E70CFEFBC0FA68" box="[1015,1041,1452,1477]" italics="true" pageId="1" pageNumber="17">ca</emphasis>
. two orders of branching; peduncle pink to red,
<quantity id="4C833EB1392A2B21B4070C9DFE55FA47" box="[279,388,1487,1514]" metricMagnitude="-2" metricUnit="m" metricValue="6.25" metricValueMax="7.0" metricValueMin="5.5" pageId="1" pageNumber="17" unit="cm" value="6.25" valueMax="7.0" valueMin="5.5">5.57 cm</quantity>
long, pinkish-white pilose or villous.
<emphasis id="B90F4F46392A2B21B62F0C9DFC5CFA44" bold="true" box="[831,909,1487,1513]" pageId="1" pageNumber="17">Bracts</emphasis>
caducous, yellowish-green to pinkish-green, at basal node of inflorescence ovate,
<emphasis id="B90F4F46392A2B21B7000CA6FDFBF9A0" box="[528,554,1524,1549]" italics="true" pageId="1" pageNumber="17">ca</emphasis>
. 6.5 ×
<quantity id="4C833EB1392A2B21B76C0CA1FD11F9A3" box="[636,704,1523,1550]" metricMagnitude="-3" metricUnit="m" metricValue="3.0" pageId="1" pageNumber="17" unit="mm" value="3.0">3 mm</quantity>
, abaxially sparsely pilose or glabrous, margin fimbriate; bracts on upper nodes similar but gradually smaller.
<emphasis id="B90F4F46392A2B21B76B0F45FC85F99C" bold="true" box="[635,852,1559,1585]" pageId="1" pageNumber="17">Staminate flower:</emphasis>
pedicel pinkish-yellow to pale pinkish-green,
<quantity id="4C833EB1392A2B21B0620F45FF65F9FB" metricMagnitude="-3" metricUnit="m" metricValue="9.0" metricValueMax="10.0" metricValueMin="8.0" pageId="1" pageNumber="17" unit="mm" value="9.0" valueMax="10.0" valueMin="8.0">810 mm</quantity>
long, sparsely pilose, tepals 4, pinkish-white to pink, outer two suborbicular to widely obovate, 8.513 ×
<quantity id="4C833EB1392A2B21B0740F69FF67F9D7" metricMagnitude="-2" metricUnit="m" metricValue="1.25" metricValueMax="1.5" metricValueMin="1.0" pageId="1" pageNumber="17" unit="mm" value="12.5" valueMax="15.0" valueMin="10.0">1015 mm</quantity>
, abaxially pilose or villous, margin entire, apex rounded, inner two narrowly obovate to oblong, 810 ×
<quantity id="4C833EB1392A2B21B0560F0DFA76F9D7" box="[1350,1447,1631,1658]" metricMagnitude="-3" metricUnit="m" metricValue="4.5" metricValueMax="5.0" metricValueMin="4.0" pageId="1" pageNumber="17" unit="mm" value="4.5" valueMax="5.0" valueMin="4.0">45 mm</quantity>
, glabrous, apex obtuse or rounded; androecium zygomorphic,
<quantity id="4C833EB1392A2B21B62A0FD1FC7FF933" box="[826,942,1667,1694]" metricMagnitude="-3" metricUnit="m" metricValue="4.25" metricValueMax="5.0" metricValueMin="3.5" pageId="1" pageNumber="17" unit="mm" value="4.25" valueMax="5.0" valueMin="3.5">3.55 mm</quantity>
across; stamens yellow, 4045; filaments
<emphasis id="B90F4F46392A2B21B09A0FD6FA7DF930" box="[1418,1452,1668,1693]" italics="true" pageId="1" pageNumber="17">ca.</emphasis>
<quantity id="4C833EB1392A2B21B5980FF5FF0CF96F" box="[136,221,1703,1730]" metricMagnitude="-3" metricUnit="m" metricValue="1.3" pageId="1" pageNumber="17" unit="mm" value="1.3">1.3 mm</quantity>
long, fused at base; anthers oblong to obovate,
<emphasis id="B90F4F46392A2B21B7FA0FFAFCD5F96C" box="[746,772,1704,1729]" italics="true" pageId="1" pageNumber="17">ca</emphasis>
.
<quantity id="4C833EB1392A2B21B6010FF5FC80F96F" box="[785,849,1703,1730]" metricMagnitude="-3" metricUnit="m" metricValue="1.0" pageId="1" pageNumber="17" unit="mm" value="1.0">1 mm</quantity>
long, 2-locular, apex retuse.
<emphasis id="B90F4F46392A2B21B1810FF5FA84F96C" bold="true" box="[1169,1365,1703,1729]" pageId="1" pageNumber="17">Pistillate flower:</emphasis>
pedicel pinkish-white to pale pinkish-green,
<quantity id="4C833EB1392A2B21B70F0F99FDACF94B" box="[543,637,1739,1766]" metricMagnitude="-3" metricUnit="m" metricValue="7.0" metricValueMax="8.0" metricValueMin="6.0" pageId="1" pageNumber="17" unit="mm" value="7.0" valueMax="8.0" valueMin="6.0">68 mm</quantity>
long, very sparsely pilose or glandular hairs, tepals 3, whitish-pink; outer two suborbicular to very widely obovate, 8.59 ×
<quantity id="4C833EB1392A2B21B7C20FBDFC83F8A7" box="[722,850,1775,1802]" metricMagnitude="-2" metricUnit="m" metricValue="1.1" metricValueMax="1.2" metricValueMin="1.0" pageId="1" pageNumber="17" unit="mm" value="11.0" valueMax="12.0" valueMin="10.0">1012 mm</quantity>
, abaxially pilose or puberulous, margin entire, apex rounded, inner one oblanceolate to narrowly elliptic,
<emphasis id="B90F4F46392A2B21B7F60E46FCD1F880" box="[742,768,1812,1837]" italics="true" pageId="1" pageNumber="17">ca</emphasis>
. 7.5 ×
<quantity id="4C833EB1392A2B21B6440E41FC48F883" box="[852,921,1811,1838]" metricMagnitude="-3" metricUnit="m" metricValue="3.0" pageId="1" pageNumber="17" unit="mm" value="3.0">3 mm</quantity>
, apex obtuse; ovary widely trigonous-globose,
<quantity id="4C833EB1392A2B21B5980E65FF28F8FF" box="[136,249,1847,1874]" metricMagnitude="-3" metricUnit="m" metricValue="3.25" metricValueMax="4.0" metricValueMin="2.5" pageId="1" pageNumber="17" unit="mm" value="3.25" valueMax="4.0" valueMin="2.5">2.54 mm</quantity>
long,
<quantity id="4C833EB1392A2B21B42E0E65FE7EF8FF" box="[318,431,1847,1874]" metricMagnitude="-3" metricUnit="m" metricValue="3.75" metricValueMax="4.5" metricValueMin="3.0" pageId="1" pageNumber="17" unit="mm" value="3.75" valueMax="4.5" valueMin="3.0">34.5 mm</quantity>
thick (wings excluded), rosy pink to pale pinkish-yellow, sparsely pilose or glandular hairs; 3-winged, wings unequal, pinkish-white to yellowish-pink, sparsely pilose or glandular hairs, margin entire; wings triangular to falcate,
<quantity id="4C833EB1392A2B21B4630E2DFE2BF837" box="[371,506,1919,1946]" metricMagnitude="-3" metricUnit="m" metricValue="4.0" metricValueMax="4.5" metricValueMin="3.5" pageId="1" pageNumber="17" unit="mm" value="4.0" valueMax="4.5" valueMin="3.5">3.54.5 mm</quantity>
long, lateral wings narrower,
<quantity id="4C833EB1392A2B21B65C0E2DFC6FF837" box="[844,958,1919,1946]" metricMagnitude="-3" metricUnit="m" metricValue="1.75" metricValueMax="2.0" metricValueMin="1.5" pageId="1" pageNumber="17" unit="mm" value="1.75" valueMax="2.0" valueMin="1.5">1.52 mm</quantity>
wide, abaxial wing
<quantity id="4C833EB1392A2B21B1B20E2DFAD1F837" box="[1186,1280,1919,1946]" metricMagnitude="-3" metricUnit="m" metricValue="3.5" metricValueMax="4.0" metricValueMin="3.0" pageId="1" pageNumber="17" unit="mm" value="3.5" valueMax="4.0" valueMin="3.0">34 mm</quantity>
wide; ovary 3- locular, placentae bilamellate; styles 3, C-shaped, shortly fused at base, golden yellow,
<emphasis id="B90F4F46392A2B21B1580EF6FBB8F810" box="[1096,1129,1956,1981]" italics="true" pageId="1" pageNumber="17">ca.</emphasis>
<quantity id="4C833EB1392A2B21B17F0EF1FB12F813" box="[1135,1219,1955,1982]" metricMagnitude="-3" metricUnit="m" metricValue="3.5" pageId="1" pageNumber="17" unit="mm" value="3.5">3.5 mm</quantity>
long, stigma slightly spirally twisted.
<emphasis id="B90F4F46392A2B21B4580E95FE79F84C" bold="true" box="[328,424,1991,2017]" pageId="1" pageNumber="17">Capsule</emphasis>
body trigonous-globose,
<quantity id="4C833EB1392A2B21B7DF0E95FCFEF84F" box="[719,815,1991,2018]" metricMagnitude="-3" metricUnit="m" metricValue="6.5" metricValueMax="7.0" metricValueMin="6.0" pageId="1" pageNumber="17" unit="mm" value="6.5" valueMax="7.0" valueMin="6.0">67 mm</quantity>
long,
<quantity id="4C833EB1392A2B21B66B0E95FC21F84F" box="[891,1008,1991,2018]" metricMagnitude="-3" metricUnit="m" metricValue="8.75" metricValueMax="9.5" metricValueMin="8.0" pageId="1" pageNumber="17" unit="mm" value="8.75" valueMax="9.5" valueMin="8.0">89.5 mm</quantity>
thick (wings excluded), yellowish-red to reddish-green when fresh; wings unequal,
<emphasis id="B90F4F46392A2B21B79E0EBEFD79F7A8" box="[654,680,2028,2053]" italics="true" pageId="1" pageNumber="17">ca</emphasis>
.
<quantity id="4C833EB1392A2B21B7A80EB9FCD8F7AB" box="[696,777,2027,2054]" metricMagnitude="-2" metricUnit="m" metricValue="1.0" pageId="1" pageNumber="17" unit="mm" value="10.0">10 mm</quantity>
long, lateral wings triangular,
<quantity id="4C833EB1392A2B21B17B0EB9FB1BF7AB" box="[1131,1226,2027,2054]" metricMagnitude="-3" metricUnit="m" metricValue="3.5" metricValueMax="4.0" metricValueMin="3.0" pageId="1" pageNumber="17" unit="mm" value="3.5" valueMax="4.0" valueMin="3.0">34 mm</quantity>
wide, abaxial wing triangular to falcate,
<quantity id="4C833EB1392A2B21B461015DFE1FF787" box="[369,462,2063,2090]" metricMagnitude="-3" metricUnit="m" metricValue="8.5" metricValueMax="9.0" metricValueMin="8.0" pageId="1" pageNumber="17" unit="mm" value="8.5" valueMax="9.0" valueMin="8.0">89 mm</quantity>
wide, truncate distally, rounded proximally.
</paragraph>
</subSubSection>
<caption id="DF04C3DC39292B22B5980EF3FBF3F853" ID-DOI="http://doi.org/10.5281/zenodo.8054137" ID-Zenodo-Dep="8054137" httpUri="https://zenodo.org/record/8054137/files/figure.png" pageId="2" pageNumber="18" startId="2.[136,234,1953,1975]" targetBox="[201,1390,193,1926]" targetPageId="2" targetType="figure">
<paragraph id="8BC4935439292B22B5980EF3FBF3F853" blockId="2.[136,1452,1953,2047]" pageId="2" pageNumber="18">
<emphasis id="B90F4F4639292B22B5980EF3FED5F81B" bold="true" box="[136,260,1953,1975]" pageId="2" pageNumber="18">FIGURE 2.</emphasis>
<taxonomicName id="4C7BE8D739292B22B41C0EF3FCCAF81A" authority="T. N. Bon &amp; C. W. Lin. A. Habit" authorityName="T. N. Bon &amp; C. W. Lin. A. Habits" authorityYear="2023" box="[268,795,1953,1975]" class="Magnoliopsida" family="Begoniaceae" genus="Begonia" kingdom="Plantae" order="Cucurbitales" pageId="2" pageNumber="18" phylum="Tracheophyta" rank="species" species="saxifragoides">
<emphasis id="B90F4F4639292B22B41C0EF3FE3BF81A" bold="true" box="[268,490,1953,1975]" italics="true" pageId="2" pageNumber="18">Begonia saxifragoides</emphasis>
T.N.Bon &amp; C.W.Lin. A. Habit
</taxonomicName>
; B, B. Portion of leaf adaxial and abaxial surfaces; CC. Bracts; DD. Staminate flower, face, back and side views; E, E. Stamens, dorsal and ventral views; F, F. Pistillate flower, face and side views; G, G. Style and stigmatic band, dorsal and ventral views; H. Capsule; I. Cross section of ovary.
</paragraph>
</caption>
<caption id="DF04C3DC39282B23B5980EDDFC4AF840" ID-DOI="http://doi.org/10.5281/zenodo.8054141" ID-Zenodo-Dep="8054141" httpUri="https://zenodo.org/record/8054141/files/figure.png" pageId="3" pageNumber="19" startId="3.[136,234,1935,1957]" targetBox="[151,1436,190,1911]" targetPageId="3" targetType="figure">
<paragraph id="8BC4935439282B23B5980EDDFC4AF840" blockId="3.[136,1452,1935,2030]" pageId="3" pageNumber="19">
<emphasis id="B90F4F4639282B23B5980EDDFED5F808" bold="true" box="[136,260,1935,1957]" pageId="3" pageNumber="19">FIGURE 3.</emphasis>
<taxonomicName id="4C7BE8D739282B23B41C0EC2FCF7F80B" authority="T. N. Bon &amp; C. W. Lin. A. Habits" authorityName="T. N. Bon &amp; C. W. Lin. A. Habits" authorityYear="2023" box="[268,806,1935,1958]" class="Magnoliopsida" family="Begoniaceae" genus="Begonia" kingdom="Plantae" order="Cucurbitales" pageId="3" pageNumber="19" phylum="Tracheophyta" rank="species" species="saxifragoides">
<emphasis id="B90F4F4639282B23B41C0EC2FE3AF808" bold="true" box="[268,491,1935,1957]" italics="true" pageId="3" pageNumber="19">Begonia saxifragoides</emphasis>
T.N.Bon &amp; C.W.Lin. A. Habits
</taxonomicName>
; B. Leaf, lower surface; C, D. Portion of leaf adaxial and abaxial surfaces; E. Bracts; F. Inflorescences, also showing bracts; G. Staminate flowers, face, back and side views; H. Pistillate flowers, face and back views; I. Capsule; J. Cross section of capsule. All photos by Trinh Ngoc Bon
</paragraph>
</caption>
<caption id="DF04C3DC392F2B24B5980EDDFC1EF864" ID-DOI="http://doi.org/10.5281/zenodo.8054143" ID-Zenodo-Dep="8054143" httpUri="https://zenodo.org/record/8054143/files/figure.png" pageId="4" pageNumber="20" startId="4.[136,234,1935,1957]" targetBox="[151,1435,190,1911]" targetPageId="4" targetType="figure">
<paragraph id="8BC49354392F2B24B5980EDDFC1EF864" blockId="4.[136,1451,1935,1993]" pageId="4" pageNumber="20">
<emphasis id="B90F4F46392F2B24B5980EDDFED4F809" bold="true" box="[136,261,1935,1957]" pageId="4" pageNumber="20">FIGURE 4.</emphasis>
<taxonomicName id="4C7BE8D7392F2B24B41D0EDDFD7FF808" authority="C. B. Clarke. A. Habit" authorityName="C. B. Clarke. A. Habit" authorityYear="1890" box="[269,686,1935,1957]" class="Magnoliopsida" family="Begoniaceae" genus="Begonia" kingdom="Plantae" order="Cucurbitales" pageId="4" pageNumber="20" phylum="Tracheophyta" rank="species" species="adscendens">
<emphasis id="B90F4F46392F2B24B41D0EDDFE09F808" bold="true" box="[269,472,1935,1957]" italics="true" pageId="4" pageNumber="20">Begonia adscendens</emphasis>
C.B.Clarke. A. Habit
</taxonomicName>
and habitats; B. Habits; C. Inflorescences; D. Staminate flowers; E. Pistillate flowers; F. Bract; G. Capsule; H. Cross section of ovary. All photos by Trinh Ngoc Bon
</paragraph>
</caption>
<caption id="DF04C3DC392E2B25B5980EDDFD5EF840" ID-DOI="http://doi.org/10.5281/zenodo.8054145" ID-Zenodo-Dep="8054145" httpUri="https://zenodo.org/record/8054145/files/figure.png" pageId="5" pageNumber="21" startId="5.[136,234,1935,1957]" targetBox="[151,1435,190,1911]" targetPageId="5" targetType="figure">
<paragraph id="8BC49354392E2B25B5980EDDFD5EF840" blockId="5.[136,1452,1935,2029]" pageId="5" pageNumber="21">
<emphasis id="B90F4F46392E2B25B5980EDDFED2F809" bold="true" box="[136,259,1935,1957]" pageId="5" pageNumber="21">FIGURE 5.</emphasis>
<taxonomicName id="4C7BE8D7392E2B25B4190EDDFD20F808" authority="Y. H. Tan &amp; H. B. Ding. A, B. Habit" authorityName="Y. H. Tan &amp; H. B. Ding. A, B. Habit" authorityYear="2020" box="[265,753,1935,1957]" class="Magnoliopsida" family="Begoniaceae" genus="Begonia" kingdom="Plantae" order="Cucurbitales" pageId="5" pageNumber="21" phylum="Tracheophyta" rank="species" species="laotica">
<emphasis id="B90F4F46392E2B25B4190EDDFE74F808" bold="true" box="[265,421,1935,1957]" italics="true" pageId="5" pageNumber="21">Begonia laotica</emphasis>
Y.H.Tan &amp; H.B.Ding. A, B. Habit
</taxonomicName>
and habitats; C. Habit; D. Tuber; E. Portion of leaf abaxial surface, also showing petiole; F. Bract; G. Inflorescence; H. Immature pistillate flower; I. Pistillate flowers; J. Staminate flowers; K. Cross section of the ovary; L. Capsules. All photos by Trinh Ngoc Bon
</paragraph>
</caption>
<subSubSection id="C361C0DF392D2B26B5AD09CCFDDCFD8D" pageId="6" pageNumber="22" type="distribution">
<paragraph id="8BC49354392D2B26B5AD09CCFDDCFD8D" blockId="6.[136,1452,158,1516]" pageId="6" pageNumber="22">
<emphasis id="B90F4F46392D2B26B5AD09CCFE3CFF15" bold="true" box="[189,493,158,184]" pageId="6" pageNumber="22">Distribution and ecology:</emphasis>
—Endemic to Ngoc Chien Commune, Muong La District,
<collectingRegion id="49BF5DB6392D2B26B19209CCFA93FF15" box="[1154,1346,158,185]" country="Vietnam" name="Son La" pageId="6" pageNumber="22">Son La Province</collectingRegion>
: northern
<collectingCountry id="F36CD3C4392D2B26B5980990FF36FF71" box="[136,231,194,220]" name="Vietnam" pageId="6" pageNumber="22">Vietnam</collectingCountry>
(
<figureCitation id="13408FD1392D2B26B5E60990FEE6FF71" box="[246,311,194,220]" captionStart="FIGURE 1" captionStartId="1.[136,234,987,1009]" captionTargetBox="[166,1421,189,957]" captionTargetId="figure-20@1.[164,1423,187,959]" captionTargetPageId="1" captionText="FIGURE 1. Distribution map of Begonia saxifragoides (yellow star), B. minhaniae (blue circle), B. adscendens and B. laotica (red triangular) in northern Vietnam." figureDoi="http://doi.org/10.5281/zenodo.8054135" httpUri="https://zenodo.org/record/8054135/files/figure.png" pageId="6" pageNumber="22">Fig. 1</figureCitation>
). Grows on mossy cliff faces or steep slopes in semi-shaded and consistently humid areas in montane cloud forest at
<quantity id="4C833EB1392D2B26B42809B4FE35FEAC" box="[312,484,230,257]" metricMagnitude="3" metricUnit="m" metricValue="1.55" metricValueMax="1.9" metricValueMin="1.2" pageId="6" pageNumber="22" unit="m" value="1550.0" valueMax="1900.0" valueMin="1200.0">
<geoCoordinate id="EE4FF593392D2B26B42809B4FEA6FEAD" box="[312,375,230,256]" degrees="1,200" direction="north" orientation="latitude" pageId="6" pageNumber="22" precision="55" value="1.2">1,200</geoCoordinate>
<geoCoordinate id="EE4FF593392D2B26B46609B4FE15FEAD" box="[374,452,230,256]" degrees="1,900" direction="west" orientation="longitude" pageId="6" pageNumber="22" precision="55" value="-1.9">1,900</geoCoordinate>
m
</quantity>
elevation.
<taxonomicName id="4C7BE8D7392D2B26B77509B5FCB2FEAD" authorityName="T. N. Bon &amp; C. W. Lin. A. Habits" authorityYear="2023" box="[613,867,230,256]" class="Magnoliopsida" family="Begoniaceae" genus="Begonia" kingdom="Plantae" order="Cucurbitales" pageId="6" pageNumber="22" phylum="Tracheophyta" rank="species" species="saxifragoides">
<emphasis id="B90F4F46392D2B26B77509B5FCB2FEAD" box="[613,867,230,256]" italics="true" pageId="6" pageNumber="22">Begonia saxifragoides</emphasis>
</taxonomicName>
is only known from a secondary evergreen forest. The following plants are recorded as associations, co-occurring with the new species:
<taxonomicName id="4C7BE8D7392D2B26B18A0858FE9DFEE5" class="Lycopodiopsida" family="Selaginellaceae" genus="Selaginella" kingdom="Plantae" order="Selaginellales" pageId="6" pageNumber="22" phylum="Tracheophyta" rank="species" species="tamariscina">
<emphasis id="B90F4F46392D2B26B18A0858FA7DFE89" box="[1178,1452,266,292]" italics="true" pageId="6" pageNumber="22">Selaginella tamariscina</emphasis>
(Selaginellaceae)
</taxonomicName>
,
<taxonomicName id="4C7BE8D7392D2B26B471087DFCE6FEE5" box="[353,823,302,329]" class="Polypodiopsida" family="Marattiaceae" genus="Angiopteris" kingdom="Plantae" order="Marattiales" pageId="6" pageNumber="22" phylum="Tracheophyta" rank="species" species="yunnanensis">
<emphasis id="B90F4F46392D2B26B471087DFDAEFEE5" box="[353,639,303,329]" italics="true" pageId="6" pageNumber="22">Angiopteris yunnanensis</emphasis>
(Marattiaceae)
</taxonomicName>
,
<taxonomicName id="4C7BE8D7392D2B26B65C087CFB28FEE5" box="[844,1273,302,328]" class="Polypodiopsida" family="Cyatheaceae" genus="Cyathea" kingdom="Plantae" order="Cyatheales" pageId="6" pageNumber="22" phylum="Tracheophyta" rank="species" species="yunnanensis">
<emphasis id="B90F4F46392D2B26B65C087CFB95FEE5" box="[844,1092,302,328]" italics="true" pageId="6" pageNumber="22">Cyathea yunnanensis</emphasis>
(Cyatheaceae)
</taxonomicName>
,
<taxonomicName id="4C7BE8D7392D2B26B01E087DFE74FEC0" class="Polypodiopsida" family="Gleicheniaceae" genus="Dicranopteris" kingdom="Plantae" order="Gleicheniales" pageId="6" pageNumber="22" phylum="Tracheophyta" rank="species" species="linearis">
<emphasis id="B90F4F46392D2B26B01E087DFF0FFEC1" italics="true" pageId="6" pageNumber="22">Dicranopteris linearis</emphasis>
(Gleicheniaceae
<emphasis id="B90F4F46392D2B26B48A0801FE74FEC0" box="[410,421,339,365]" italics="true" pageId="6" pageNumber="22">)</emphasis>
</taxonomicName>
<emphasis id="B90F4F46392D2B26B4B50801FD56FEC1" box="[421,647,339,365]" italics="true" pageId="6" pageNumber="22">
,
<taxonomicName id="4C7BE8D7392D2B26B4A30801FD56FEC1" box="[435,647,339,364]" class="Polypodiopsida" family="Pteridaceae" genus="Pteris" kingdom="Plantae" order="Polypodiales" pageId="6" pageNumber="22" phylum="Tracheophyta" rank="species" species="semipinnata">Pteris semipinnata</taxonomicName>
</emphasis>
and other
<taxonomicName id="4C7BE8D7392D2B26B6120801FBDDFEC1" box="[770,1036,338,365]" class="Polypodiopsida" family="Pteridaceae" genus="Pteris" kingdom="Plantae" order="Polypodiales" pageId="6" pageNumber="22" phylum="Tracheophyta" rank="species" species="undetermined">
<emphasis id="B90F4F46392D2B26B6120801FC94FEC1" box="[770,837,339,364]" italics="true" pageId="6" pageNumber="22">Pteris</emphasis>
sp. (Pteridaceae)
</taxonomicName>
,
<taxonomicName id="4C7BE8D7392D2B26B1080801FA97FEC1" box="[1048,1350,338,365]" class="Polypodiopsida" family="Tectariaceae" genus="Tectaria" kingdom="Plantae" order="Polypodiales" pageId="6" pageNumber="22" phylum="Tracheophyta" rank="species" species="undetermined">
<emphasis id="B90F4F46392D2B26B1080801FBA5FEC1" box="[1048,1140,339,364]" italics="true" pageId="6" pageNumber="22">Tectaria</emphasis>
sp. (Tectariaceae)
</taxonomicName>
,
<emphasis id="B90F4F46392D2B26B0430800FF6FFE3D" italics="true" pageId="6" pageNumber="22">
<taxonomicName id="4C7BE8D7392D2B26B0430800FF6BFE3D" class="Magnoliopsida" family="Lauraceae" genus="Lindera" kingdom="Plantae" order="Laurales" pageId="6" pageNumber="22" phylum="Tracheophyta" rank="species" species="rufa">Lindera rufa</taxonomicName>
,
</emphasis>
<taxonomicName id="4C7BE8D7392D2B26B5DF0825FDDFFE3D" box="[207,526,374,400]" class="Magnoliopsida" family="Lauraceae" genus="Litsea" kingdom="Plantae" order="Laurales" pageId="6" pageNumber="22" phylum="Tracheophyta" rank="species" species="cubeba">
<emphasis id="B90F4F46392D2B26B5DF0825FEA4FE3D" box="[207,373,374,400]" italics="true" pageId="6" pageNumber="22">Litsea cubeba</emphasis>
(Lauraceae)
</taxonomicName>
,
<taxonomicName id="4C7BE8D7392D2B26B7330824FC66FE3D" box="[547,951,374,400]" class="Liliopsida" family="Zingiberaceae" genus="Alpinia" kingdom="Plantae" order="Zingiberales" pageId="6" pageNumber="22" phylum="Tracheophyta" rank="species" species="calcarata">
<emphasis id="B90F4F46392D2B26B7330824FD20FE3D" box="[547,753,374,400]" italics="true" pageId="6" pageNumber="22">Alpinia calcarata</emphasis>
(Zingiberaceae)
</taxonomicName>
,
<taxonomicName id="4C7BE8D7392D2B26B6DB0825FAEDFE3D" box="[971,1340,374,401]" class="Liliopsida" family="Poaceae" genus="Cyrtococcum" kingdom="Plantae" order="Poales" pageId="6" pageNumber="22" phylum="Tracheophyta" rank="species" species="patens">
<emphasis id="B90F4F46392D2B26B6DB0825FB6BFE3D" box="[971,1210,375,401]" italics="true" pageId="6" pageNumber="22">Cyrtococcum patens</emphasis>
(Poaceae)
</taxonomicName>
,
<taxonomicName id="4C7BE8D7392D2B26B0410824FE16FE19" class="Magnoliopsida" family="Altingiaceae" genus="Altingia" higherTaxonomySource="GBIF" kingdom="Plantae" order="Saxifragales" pageId="6" pageNumber="22" phylum="Tracheophyta" rank="species" species="yunnanensis">
<emphasis id="B90F4F46392D2B26B0410824FEC3FE19" italics="true" pageId="6" pageNumber="22">Altingia yunnanensis</emphasis>
(Altingiaceae)
</taxonomicName>
,
<taxonomicName id="4C7BE8D7392D2B26B4CC08C8FCBEFE19" box="[476,879,410,436]" class="Magnoliopsida" family="Urticaceae" genus="Elatostema" kingdom="Plantae" order="Rosales" pageId="6" pageNumber="22" phylum="Tracheophyta" rank="species" species="balansae">
<emphasis id="B90F4F46392D2B26B4CC08C8FD01FE19" box="[476,720,410,436]" italics="true" pageId="6" pageNumber="22">Elatostema balansae</emphasis>
(Urticaceae)
</taxonomicName>
,
<taxonomicName id="4C7BE8D7392D2B26B69408C8FB31FE19" box="[900,1248,410,436]" class="Magnoliopsida" family="Betulaceae" genus="Betula" kingdom="Plantae" order="Fagales" pageId="6" pageNumber="22" phylum="Tracheophyta" rank="species" species="alnoides">
<emphasis id="B90F4F46392D2B26B69408C8FBEFFE19" box="[900,1086,410,436]" italics="true" pageId="6" pageNumber="22">Betula alnoides</emphasis>
(Betulaceae)
</taxonomicName>
,
<taxonomicName id="4C7BE8D7392D2B26B1E508C8FE78FE75" class="Magnoliopsida" family="Anacardiaceae" genus="Choerospondias" kingdom="Plantae" order="Sapindales" pageId="6" pageNumber="22" phylum="Tracheophyta" rank="species" species="axillaris">
<emphasis id="B90F4F46392D2B26B1E508C8FF34FE75" italics="true" pageId="6" pageNumber="22">Choerospondias axillaris</emphasis>
(Anacardiaceae)
</taxonomicName>
,
<taxonomicName id="4C7BE8D7392D2B26B4A508ECFC91FE75" box="[437,832,446,472]" class="Magnoliopsida" family="Rutaceae" genus="Tetradium" kingdom="Plantae" order="Sapindales" pageId="6" pageNumber="22" phylum="Tracheophyta" rank="species" species="glabrifolium">
<emphasis id="B90F4F46392D2B26B4A508ECFD6AFE75" box="[437,699,446,472]" italics="true" pageId="6" pageNumber="22">Tetradium glabrifolium</emphasis>
(Rutaceae)
</taxonomicName>
,
<taxonomicName id="4C7BE8D7392D2B26B65C08ECFB40FE75" box="[844,1169,446,472]" class="Magnoliopsida" family="Theaceae" genus="Schima" kingdom="Plantae" order="Ericales" pageId="6" pageNumber="22" phylum="Tracheophyta" rank="species" species="wallichii">
<emphasis id="B90F4F46392D2B26B65C08ECFBD8FE75" box="[844,1033,446,472]" italics="true" pageId="6" pageNumber="22">Schima wallichii</emphasis>
(Theaceae)
</taxonomicName>
,
<taxonomicName id="4C7BE8D7392D2B26B18E08ECFEF5FE51" class="Magnoliopsida" family="Styracaceae" genus="Alniphyllum" kingdom="Plantae" order="Ericales" pageId="6" pageNumber="22" phylum="Tracheophyta" rank="species" species="eberhardtii">
<emphasis id="B90F4F46392D2B26B18E08ECFA7AFE75" box="[1182,1451,446,472]" italics="true" pageId="6" pageNumber="22">Alniphyllum eberhardtii</emphasis>
(Styracaceae)
</taxonomicName>
,
<taxonomicName id="4C7BE8D7392D2B26B43C08B1FD4BFE51" box="[300,666,482,509]" class="Magnoliopsida" family="Actinidiaceae" genus="Saurauia" kingdom="Plantae" order="Ericales" pageId="6" pageNumber="22" phylum="Tracheophyta" rank="species" species="tristyla">
<emphasis id="B90F4F46392D2B26B43C08B1FE37FE51" box="[300,486,482,509]" italics="true" pageId="6" pageNumber="22">Saurauia tristyla</emphasis>
(Actinidiaceae)
</taxonomicName>
,
<taxonomicName id="4C7BE8D7392D2B26B7B208B0FC90FE50" box="[674,833,482,509]" class="Magnoliopsida" family="Rubiaceae" genus="Lasianthus" kingdom="Plantae" order="Gentianales" pageId="6" pageNumber="22" phylum="Tracheophyta" rank="species" species="undetermined">
<emphasis id="B90F4F46392D2B26B7B208B0FCCCFE51" box="[674,797,482,508]" italics="true" pageId="6" pageNumber="22">Lasianthus</emphasis>
sp.
</taxonomicName>
,
<emphasis id="B90F4F46392D2B26B65C08B0FBF4FE51" box="[844,1061,482,508]" italics="true" pageId="6" pageNumber="22">
<taxonomicName id="4C7BE8D7392D2B26B65C08B0FBF0FE51" box="[844,1057,482,508]" class="Magnoliopsida" family="Rubiaceae" genus="Lerchea" kingdom="Plantae" order="Gentianales" pageId="6" pageNumber="22" phylum="Tracheophyta" rank="species" species="micrantha">Lerchea micrantha</taxonomicName>
,
</emphasis>
<taxonomicName id="4C7BE8D7392D2B26B13908B0FA7AFE51" box="[1065,1451,482,508]" class="Magnoliopsida" family="Rubiaceae" genus="Ophiorrhiza" kingdom="Plantae" order="Gentianales" pageId="6" pageNumber="22" phylum="Tracheophyta" rank="species" species="baviensis">
<emphasis id="B90F4F46392D2B26B13908B0FAF1FE51" box="[1065,1312,482,508]" italics="true" pageId="6" pageNumber="22">Ophiorrhiza baviensis</emphasis>
(Rubiaceae)
</taxonomicName>
and
<taxonomicName id="4C7BE8D7392D2B26B5A70B55FDDBFD8D" box="[183,522,518,545]" class="Magnoliopsida" family="Acanthaceae" genus="Staurogyne" kingdom="Plantae" order="Lamiales" pageId="6" pageNumber="22" phylum="Tracheophyta" rank="species" species="undetermined">
<emphasis id="B90F4F46392D2B26B5A70B55FEE7FD8C" box="[183,310,519,545]" italics="true" pageId="6" pageNumber="22">Staurogyne</emphasis>
sp. (Acanthaceae)
</taxonomicName>
.
</paragraph>
</subSubSection>
<subSubSection id="C361C0DF392D2B26B5AD0B78FCEEFDC5" pageId="6" pageNumber="22" type="etymology">
<paragraph id="8BC49354392D2B26B5AD0B78FCEEFDC5" blockId="6.[136,1452,158,1516]" pageId="6" pageNumber="22">
<emphasis id="B90F4F46392D2B26B5AD0B78FE99FDE9" bold="true" box="[189,328,554,580]" pageId="6" pageNumber="22">Etymology:</emphasis>
—The specific epithet derives from the genus name of
<taxonomicName id="4C7BE8D7392D2B26B6D80B78FB66FDE9" box="[968,1207,554,580]" class="Magnoliopsida" family="Saxifragaceae" genus="Saxifraga" kingdom="Plantae" order="Saxifragales" pageId="6" pageNumber="22" phylum="Tracheophyta" rank="species" species="stolonifera">
<emphasis id="B90F4F46392D2B26B6D80B78FB66FDE9" box="[968,1207,554,580]" italics="true" pageId="6" pageNumber="22">Saxifraga stolonifera</emphasis>
</taxonomicName>
, and the Latin suffix
<emphasis id="B90F4F46392D2B26B5980B1CFF1DFDC5" box="[136,204,590,616]" italics="true" pageId="6" pageNumber="22">-oides</emphasis>
, referring to the orbicular leaves with crenulate margin.
</paragraph>
</subSubSection>
<subSubSection id="C361C0DF392D2B26B5AD0B20FE88FC00" pageId="6" pageNumber="22" type="conservation">
<paragraph id="8BC49354392D2B26B5AD0B20FBC2FCED" blockId="6.[136,1452,158,1516]" pageId="6" pageNumber="22">
<emphasis id="B90F4F46392D2B26B5AD0B20FE8CFD21" bold="true" box="[189,349,626,652]" pageId="6" pageNumber="22">Conservation</emphasis>
:—
<taxonomicName id="4C7BE8D7392D2B26B4910B21FD51FD21" authorityName="T. N. Bon &amp; C. W. Lin. A. Habits" authorityYear="2023" box="[385,640,626,652]" class="Magnoliopsida" family="Begoniaceae" genus="Begonia" kingdom="Plantae" order="Cucurbitales" pageId="6" pageNumber="22" phylum="Tracheophyta" rank="species" species="saxifragoides">
<emphasis id="B90F4F46392D2B26B4910B21FD51FD21" box="[385,640,626,652]" italics="true" pageId="6" pageNumber="22">Begonia saxifragoides</emphasis>
</taxonomicName>
is considered Vulnerable (VUD2) according to IUCN criteria (2022), because of its isolated occurrence. The species has a small population size estimated at less than 2,500 mature individuals, which matches criterion EN C1, however there are no observed or projected declines. In eight survey routes conducted in 2022, we encountered two populations. Population 1 (elevation
<quantity id="4C833EB1392D2B26B1380B8CFB55FD55" box="[1064,1156,734,760]" metricMagnitude="3" metricUnit="m" metricValue="1.2" pageId="6" pageNumber="22" unit="m" value="1200.0">1,200 m</quantity>
) consists of 18 individuals scattered across an area of 1000 square meters along the survey route. Population 2 (elevation
<quantity id="4C833EB1392D2B26B1B20A50FB2EFCB1" box="[1186,1279,770,796]" metricMagnitude="3" metricUnit="m" metricValue="1.9" pageId="6" pageNumber="22" unit="m" value="1900.0">1,900 m</quantity>
) consists of six individuals scattered in an area of 500 square meters along the investigation line.
</paragraph>
<paragraph id="8BC49354392D2B26B5AD0A19FE88FC00" blockId="6.[136,1452,158,1516]" pageId="6" pageNumber="22">
Ngoc Chien Commune is renowned for its abundant tourism resources, and the
<typeStatus id="54C02DF6392D2B26B14D0A19FB5CFCC8" box="[1117,1165,843,869]" pageId="6" pageNumber="22">type</typeStatus>
locality is not under the jurisdiction of a protected forest. This implies that the habitat of this species may be vulnerable to damage from unforeseen events.
</paragraph>
</subSubSection>
<subSubSection id="C361C0DF392D2B26B5AD0AE4FB99FA41" pageId="6" pageNumber="22" type="discussion">
<paragraph id="8BC49354392D2B26B5AD0AE4FCEAFB29" blockId="6.[136,1452,158,1516]" pageId="6" pageNumber="22">
<emphasis id="B90F4F46392D2B26B5AD0AE4FED8FC7D" bold="true" box="[189,265,950,976]" pageId="6" pageNumber="22">Notes:</emphasis>
<taxonomicName id="4C7BE8D7392D2B26B4360AE5FDF9FC7D" authorityName="T. N. Bon &amp; C. W. Lin. A. Habits" authorityYear="2023" box="[294,552,950,976]" class="Magnoliopsida" family="Begoniaceae" genus="Begonia" kingdom="Plantae" order="Cucurbitales" pageId="6" pageNumber="22" phylum="Tracheophyta" rank="species" species="saxifragoides">
<emphasis id="B90F4F46392D2B26B4360AE5FDF9FC7D" box="[294,552,950,976]" italics="true" pageId="6" pageNumber="22">Begonia saxifragoides</emphasis>
</taxonomicName>
shares characteristics with
<taxonomicName id="4C7BE8D7392D2B26B6660AE5FBC3FC7D" authorityName="T.S.Hoang, C.W.Lin.A &amp; B.Habit" authorityYear="2022" box="[886,1042,950,976]" class="Magnoliopsida" family="Begoniaceae" genus="Begonia" kingdom="Plantae" order="Cucurbitales" pageId="6" pageNumber="22" phylum="Tracheophyta" rank="species" species="minhaniae">
<emphasis id="B90F4F46392D2B26B6660AE5FBC3FC7D" box="[886,1042,950,976]" italics="true" pageId="6" pageNumber="22">B. minhaniae</emphasis>
</taxonomicName>
, such as rhizomatous habit, hairy petioles, 4-tepaled staminate flowers and 3-tepaled pistillate flowers and 3-locular ovary. However, the distinctive characteristics of
<taxonomicName id="4C7BE8D7392D2B26B45E0AADFDD4FBB5" authorityName="T. N. Bon &amp; C. W. Lin. A. Habits" authorityYear="2023" box="[334,517,1022,1048]" class="Magnoliopsida" family="Begoniaceae" genus="Begonia" kingdom="Plantae" order="Cucurbitales" pageId="6" pageNumber="22" phylum="Tracheophyta" rank="species" species="saxifragoides">
<emphasis id="B90F4F46392D2B26B45E0AADFDD4FBB5" box="[334,517,1022,1048]" italics="true" pageId="6" pageNumber="22">B. saxifragoides</emphasis>
</taxonomicName>
(compared to
<taxonomicName id="4C7BE8D7392D2B26B7B80AADFCEFFBB5" authorityName="T.S.Hoang, C.W.Lin.A &amp; B.Habit" authorityYear="2022" box="[680,830,1022,1048]" class="Magnoliopsida" family="Begoniaceae" genus="Begonia" kingdom="Plantae" order="Cucurbitales" pageId="6" pageNumber="22" phylum="Tracheophyta" rank="species" species="minhaniae">
<emphasis id="B90F4F46392D2B26B7B80AADFCEFFBB5" box="[680,830,1022,1048]" italics="true" pageId="6" pageNumber="22">B. minhaniae</emphasis>
</taxonomicName>
) are its orbicular to reniform (vs. widely ovate) leaves, apex rounded (vs. acute to acuminate), petiole densely rosy pink to white pilose or villous (vs. yellowish-brown tomentose), stamens 4045 (vs.
<emphasis id="B90F4F46392D2B26B4E80D15FDC3FBCD" box="[504,530,1095,1120]" italics="true" pageId="6" pageNumber="22">ca</emphasis>
. 15), ovary trigonous-globose (vs. ovary trigonous-ellipsoid) and wings sparsely pilose or glandular hairs (vs. glabrous or sparsely tomentose).
</paragraph>
<paragraph id="8BC49354392D2B26B5AD0DDCFC9DFAB9" blockId="6.[136,1452,158,1516]" pageId="6" pageNumber="22">
Among Vietnamese
<taxonomicName id="4C7BE8D7392D2B26B4B30DDDFD88FB05" box="[419,601,1166,1192]" pageId="6" pageNumber="22">
<emphasis id="B90F4F46392D2B26B4B30DDDFDD1FB05" box="[419,512,1167,1192]" italics="true" pageId="6" pageNumber="22">Begonia</emphasis>
species
</taxonomicName>
of sect.
<taxonomicName id="4C7BE8D7392D2B26B7AB0DDCFC83FB05" box="[699,850,1166,1192]" class="Magnoliopsida" family="Begoniaceae" genus="Platycentrum" higherTaxonomySource="GBIF" kingdom="Plantae" order="Cucurbitales" pageId="6" pageNumber="22" phylum="Tracheophyta" rank="genus">
<emphasis id="B90F4F46392D2B26B7AB0DDCFC83FB05" box="[699,850,1166,1192]" italics="true" pageId="6" pageNumber="22">Platycentrum</emphasis>
</taxonomicName>
,
<taxonomicName id="4C7BE8D7392D2B26B6700DDDFBC6FB05" authorityName="T. N. Bon &amp; C. W. Lin. A. Habits" authorityYear="2023" box="[864,1047,1166,1192]" class="Magnoliopsida" family="Begoniaceae" genus="Begonia" kingdom="Plantae" order="Cucurbitales" pageId="6" pageNumber="22" phylum="Tracheophyta" rank="species" species="saxifragoides">
<emphasis id="B90F4F46392D2B26B6700DDDFBC6FB05" box="[864,1047,1166,1192]" italics="true" pageId="6" pageNumber="22">B. saxifragoides</emphasis>
</taxonomicName>
is also similar to
<taxonomicName id="4C7BE8D7392D2B26B1F20DDDFEB4FB60" authority="C. Y. Wu (1997: 50)" authorityName="C. Y. Wu" authorityPageNumber="50" authorityYear="1997" class="Magnoliopsida" family="Begoniaceae" genus="Begonia" kingdom="Plantae" order="Cucurbitales" pageId="6" pageNumber="22" phylum="Tracheophyta" rank="species" species="sinovietnamica">
<emphasis id="B90F4F46392D2B26B1F20DDDFA7DFB05" box="[1250,1452,1167,1192]" italics="true" pageId="6" pageNumber="22">B. sinovietnamica</emphasis>
C.Y.
<bibRefCitation id="EFEAEEA5392D2B26B5A60DE0FEB4FB60" author="Wu, C. Y. &amp; Ku, T. C." box="[182,357,1202,1229]" pageId="6" pageNumber="22" pagination="43 - 56" refId="ref4381" refString="Wu, C. Y. &amp; Ku, T. C. (1997) New taxa of the Begonia L. (Begoniaceae) from China (Cont.). Acta Phytotaxonomica Sinica 35 (1): 43 - 56." type="journal article" year="1997">Wu (1997: 50)</bibRefCitation>
</taxonomicName>
, but this species has widely ovate lamina that is hirsute on the upper surface (vs. orbicular to reniform and glabrous in
<taxonomicName id="4C7BE8D7392D2B26B48E0D85FD83FB5D" authorityName="T. N. Bon &amp; C. W. Lin. A. Habits" authorityYear="2023" box="[414,594,1238,1264]" class="Magnoliopsida" family="Begoniaceae" genus="Begonia" kingdom="Plantae" order="Cucurbitales" pageId="6" pageNumber="22" phylum="Tracheophyta" rank="species" species="saxifragoides">
<emphasis id="B90F4F46392D2B26B48E0D85FD83FB5D" box="[414,594,1238,1264]" italics="true" pageId="6" pageNumber="22">B. saxifragoides</emphasis>
</taxonomicName>
), anther apex truncate to rounded (vs. retuse in
<taxonomicName id="4C7BE8D7392D2B26B14A0D85FADEFB5D" authorityName="T. N. Bon &amp; C. W. Lin. A. Habits" authorityYear="2023" box="[1114,1295,1238,1264]" class="Magnoliopsida" family="Begoniaceae" genus="Begonia" kingdom="Plantae" order="Cucurbitales" pageId="6" pageNumber="22" phylum="Tracheophyta" rank="species" species="saxifragoides">
<emphasis id="B90F4F46392D2B26B14A0D85FADEFB5D" box="[1114,1295,1238,1264]" italics="true" pageId="6" pageNumber="22">B. saxifragoides</emphasis>
</taxonomicName>
) and pistillate flowers having five tepals (vs. three tepals in
<taxonomicName id="4C7BE8D7392D2B26B7950DA9FCEAFAB9" authorityName="T. N. Bon &amp; C. W. Lin. A. Habits" authorityYear="2023" box="[645,827,1274,1300]" class="Magnoliopsida" family="Begoniaceae" genus="Begonia" kingdom="Plantae" order="Cucurbitales" pageId="6" pageNumber="22" phylum="Tracheophyta" rank="species" species="saxifragoides">
<emphasis id="B90F4F46392D2B26B7950DA9FCEAFAB9" box="[645,827,1274,1300]" italics="true" pageId="6" pageNumber="22">B. saxifragoides</emphasis>
</taxonomicName>
).
</paragraph>
<paragraph id="8BC49354392D2B26B5AD0C4CFDEBFA65" blockId="6.[136,1452,158,1516]" pageId="6" pageNumber="22">
Based on several morphological characters, such as orbicular lamina with a hairy petiole and the number of tepals in both staminate and pistillate flowers, the new species bears a superficial resemblance to
<taxonomicName id="4C7BE8D7392D2B26B18F0C11FE7EFA2D" authority="Y. M. Shui &amp; W. H. Chen (2005: 360)" authorityName="Y. M. Shui &amp; W. H. Chen" authorityPageNumber="360" authorityYear="2005" class="Magnoliopsida" family="Begoniaceae" genus="Begonia" kingdom="Plantae" order="Cucurbitales" pageId="6" pageNumber="22" phylum="Tracheophyta" rank="species" species="crystallina">
<emphasis id="B90F4F46392D2B26B18F0C11FAE9FAF1" box="[1183,1336,1346,1372]" italics="true" pageId="6" pageNumber="22">B. crystallina</emphasis>
Y.M.Shui &amp; W.H.Chen (2005: 360)
</taxonomicName>
. However, it is morphologically distinct from
<taxonomicName id="4C7BE8D7392D2B26B6D90C35FBB2FA2D" authorityName="Y. M. Shui &amp; W. H. Chen" authorityYear="2005" box="[969,1123,1382,1408]" class="Magnoliopsida" family="Begoniaceae" genus="Begonia" kingdom="Plantae" order="Cucurbitales" pageId="6" pageNumber="22" phylum="Tracheophyta" rank="species" species="crystallina">
<emphasis id="B90F4F46392D2B26B6D90C35FBB2FA2D" box="[969,1123,1382,1408]" italics="true" pageId="6" pageNumber="22">B. crystallina</emphasis>
</taxonomicName>
on account in the following diagnostic characters: leaves upper surface glabrous or subglabrous (vs. setulose), 3-locular (vs. 1-locular) ovary with triangular to falcate (vs. lunate) wings.
</paragraph>
<paragraph id="8BC49354392D2B26B5AD0C80FB99FA41" blockId="6.[136,1452,158,1516]" box="[189,1096,1490,1516]" pageId="6" pageNumber="22">
A comparison of the salient characters of the four species is presented in
<tableCitation id="C6F9A6EF392D2B26B6FE0C80FB93FA41" box="[1006,1090,1490,1516]" captionStart="TABLE 1" captionStartId="7.[136,224,160,184]" captionTargetPageId="7" captionText="TABLE 1. Comparison of Begonia saxifragoides, B. minhaniae, B. sinovietnamica and B. crystallina." httpUri="http://table.plazi.org/id/DF04C3DC392C2B27B59809F2FB01FF1A" pageId="6" pageNumber="22" tableUuid="DF04C3DC392C2B27B59809F2FB01FF1A">Table 1</tableCitation>
.
</paragraph>
</subSubSection>
</treatment>
</document>