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<document id="A92B49BA2ABEDEDD74E9D39FE6BA4146" ID-CLB-Dataset="300726" ID-DOI="10.11646/phytotaxa.650.3.1" ID-GBIF-Dataset="e900694c-d691-4fc9-84aa-9800c42683cd" ID-ISSN="1179-3163" ID-Zenodo-Dep="13216386" IM.bibliography_approvedBy="felipe" IM.illustrations_approvedBy="felipe" IM.materialsCitations_approvedBy="felipe" IM.tables_requiresApprovalFor="GgImagineBatch" IM.taxonomicNames_approvedBy="felipe" IM.treatments_approvedBy="felipe" checkinTime="1722605122448" checkinUser="felipe" docAuthor="Yamamoto, Takenori, Souladeth, Phetlasy, Phonepaseuth, Phongphayboun, Kongxaisavath, Deuanta, Vongthavone, Thyraphon, Vuong, Truong Ba, Trong, Pham Quoc, Souvannakhoummane, Keooudone &amp; Tagane, Shuichiro" docDate="2024" docId="79101404FFAAFFD093B4F9DDFC4455A7" docLanguage="en" docName="phytotaxa.650.3.1.pdf" docOrigin="Phytotaxa 650 (3)" docSource="http://dx.doi.org/10.11646/phytotaxa.650.3.1" docStyle="DocumentStyle:96748F8F1B6C902996E134952A3A36B9.13:Phytotaxa.2014-.journal_article" docStyleId="96748F8F1B6C902996E134952A3A36B9" docStyleName="Phytotaxa.2014-.journal_article" docStyleVersion="13" docTitle="Nymphanthus namkadingensis Tk. Yamam., Tagane &amp; Soulad., sp. nov." docType="treatment" docVersion="2" lastPageNumber="204" masterDocId="85296C7CFFABFFD5933CFF89FFE0545B" masterDocTitle="Nymphanthus namkadingensis, a new species of Phyllanthaceae from Laos" masterLastPageNumber="205" masterPageNumber="199" pageNumber="200" updateTime="1722809285597" updateUser="ExternalLinkService" zenodo-license-figures="UNSPECIFIED" zenodo-license-treatments="UNSPECIFIED">
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<mods:title id="DCC63806774D86869B0BB262F17A8D5C">Nymphanthus namkadingensis, a new species of Phyllanthaceae from Laos</mods:title>
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<mods:namePart id="28A57827D167EB0A94076CACD09F2058">Yamamoto, Takenori</mods:namePart>
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<mods:namePart id="560320E17E386835F1F9731A67A0688D">Souladeth, Phetlasy</mods:namePart>
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<mods:namePart id="585E0FCCE7E10E7A83C623F332BF6BFC">Kongxaisavath, Deuanta</mods:namePart>
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<mods:namePart id="2362E3FE280AA9ACFBBA41F54144006C">Souvannakhoummane, Keooudone</mods:namePart>
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<mods:affiliation id="EFC8252226BC8AD095AC912DF6B6D3F8">Faculty of Natural Science, National University of Laos, Dongdok Campus, Xaythany District, Vientiane Capital, Laos</mods:affiliation>
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<mods:namePart id="E52328BE80D97F2D7B9C10F419EC886C">Tagane, Shuichiro</mods:namePart>
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<treatment id="79101404FFAAFFD093B4F9DDFC4455A7" ID-DOI="http://doi.org/10.5281/zenodo.13214591" ID-GBIF-Taxon="237652105" ID-Zenodo-Dep="13214591" LSID="urn:lsid:plazi:treatment:79101404FFAAFFD093B4F9DDFC4455A7" httpUri="http://treatment.plazi.org/id/79101404FFAAFFD093B4F9DDFC4455A7" lastPageId="5" lastPageNumber="204" pageId="1" pageNumber="200">
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<taxonomicName id="36B9DE91FFAAFFD493B4F9DDFCB25235" authority="Tk.Yamam., Tagane &amp; Soulad." authorityName="Tk. Yamam., Tagane &amp; Soulad." box="[136,850,1620,1647]" class="Magnoliopsida" family="Phyllanthaceae" genus="Nymphanthus" higherTaxonomySource="GBIF" kingdom="Plantae" order="Malpighiales" pageId="1" pageNumber="200" phylum="Tracheophyta" rank="species" species="namkadingensis" status="sp. nov.">
<emphasis id="C3CD7900FFAAFFD493B4F9DDFE0E5234" bold="true" box="[136,494,1620,1647]" italics="true" pageId="1" pageNumber="200">Nymphanthus namkadingensis</emphasis>
Tk.Yamam., Tagane &amp; Soulad.
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,
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<taxonomicNameLabel id="D8FEC47BFFAAFFD49061F9DDFC535235" box="[861,947,1620,1646]" pageId="1" pageNumber="200" rank="species">sp. nov.</taxonomicNameLabel>
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Type:—
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.
<collectingRegion id="337D6BF0FFAAFFD4921AF9F5FDE652C9" box="[294,518,1660,1682]" country="Laos" name="Bolikhamxai" pageId="1" pageNumber="200">Bolikhamxai Province</collectingRegion>
: Pakkading District, Nam Aan River, Nam Kading National Protected Area,
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,
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,
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elev.,
<date id="850783D2FFAAFFD492F0F929FD9B52EE" box="[460,635,1696,1718]" pageId="1" pageNumber="200" value="2023-09-02">2 September 2023</date>
,
<emphasis id="C3CD7900FFAAFFD491B8F929FD525282" italics="true" pageId="1" pageNumber="200">S. Tagane, P. Souladeth, T. Vongthavone, P. Phonepaseuth, T.B. Vuong, T. Yamamoto, D. Kongxaisavath, P.Q. Trong, S. Lorvanhkham Z74</emphasis>
[fl. &amp; fr.] (
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!,
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<figureCitation id="6982B997FFAAFFD49795F94DFAE35282" box="[1193,1283,1732,1754]" captionStart="FIGURE 1" captionStartId="2.[136,229,1973,1995]" captionTargetBox="[179,1408,257,1945]" captionTargetId="figure-62@2.[179,1408,239,1945]" captionTargetPageId="2" captionText="FIGURE 1. Holotype of Nymphanthus namkadingensis Tk.Yamam., Tagane &amp; Soulad. (Tagane et al. Z74, FOF)." figureDoi="http://doi.org/10.5281/zenodo.13216388" httpUri="https://zenodo.org/record/13216388/files/figure.png" pageId="1" pageNumber="200">Figures 1</figureCitation>
&amp;
<figureCitation id="6982B997FFAAFFD4961EF94DFAD05282" box="[1314,1328,1732,1753]" captionStart="FIGURE 2" captionStartId="3.[136,229,1831,1853]" captionTargetBox="[222,1365,190,1807]" captionTargetId="figure-18@3.[222,1365,190,1807]" captionTargetPageId="3" captionText="FIGURE 2. Nymphanthus namkadingensis Tk.Yamam., Tagane &amp; Soulad. (A, E–G, I–M. Tagane et al. Z74; B–D. Souladeth et al. Z595; H. Tagane et al. Z128). A. Habitat; B. Habit; C, D. Portion of floriferous branchlet showing adaxial and abaxial leaf surfaces respectively; E. Abaxial leaf surface; F. Stipule; G. Staminate flower (front view); H. Staminate flowers (lateral view); I. Enlarged view of staminate flower showing stamens and disc glands; J. Pistillate flower (lateral view, sepals detached); K &amp; L. Ovary (lateral view &amp; overhead view, respectively); M. Fruit just before dehiscence. Abbreviations: an, theca of anther; dp, disc gland of pistillate flower; ds, disc gland of staminate flower; ov, ovary, sy, style. Scale bars E = 5 mm, F = 3 mm, I–L = 0.5 mm, and M = 1 mm. Photos: T. Yamamoto (A, E, F, I–M), K. Souvannakhoummane (B), P. Souladeth (C, D), and S. Tagane (G, H)." figureDoi="http://doi.org/10.5281/zenodo.13216390" httpUri="https://zenodo.org/record/13216390/files/figure.png" pageId="1" pageNumber="200">2</figureCitation>
.
</paragraph>
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<taxonomicName id="36B9DE91FFAAFFD493B4F881FE3F5379" box="[136,479,1800,1826]" class="Magnoliopsida" family="Phyllanthaceae" genus="Nymphanthus" higherTaxonomySource="GBIF" kingdom="Plantae" order="Malpighiales" pageId="1" pageNumber="200" phylum="Tracheophyta" rank="species" species="namkadingensis">
<emphasis id="C3CD7900FFAAFFD493B4F881FE3F5379" box="[136,479,1800,1826]" italics="true" pageId="1" pageNumber="200">Nymphanthus namkadingensis</emphasis>
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is distinguished from the other members of
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<emphasis id="C3CD7900FFAAFFD490DDF881FB9B5379" box="[993,1147,1800,1826]" italics="true" pageId="1" pageNumber="200">Nymphanthus</emphasis>
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by having combination of following features: branches and branchlets glabrous, stipules of 3–9 ×
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, ovate-lanceolate laminae of 14–25 ×
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with 8–12 pairs of lateral veins, reddish purple sepals with slightly undulate (non-fimbriate) margins, annular disc glands of pistillate flowers, and glabrous ovaries.Among
<taxonomicName id="36B9DE91FFAAFFD49013F8FDFBFE53D5" box="[815,1054,1908,1934]" pageId="1" pageNumber="200">
<emphasis id="C3CD7900FFAAFFD49013F8FDFC2953D5" box="[815,969,1908,1934]" italics="true" pageId="1" pageNumber="200">Nymphanthus</emphasis>
species
</taxonomicName>
distributed in
<collectingCountry id="89AEE582FFAAFFD49786F8FCFB1053D4" box="[1210,1264,1909,1935]" name="Laos" pageId="1" pageNumber="200">Laos</collectingCountry>
and its adjoining countries, the new species is most similar to
<taxonomicName id="36B9DE91FFAAFFD491A0F810FCD153E9" box="[668,817,1944,1970]" class="Magnoliopsida" family="Phyllanthaceae" genus="Nymphanthus" higherTaxonomySource="GBIF" kingdom="Plantae" order="Malpighiales" pageId="1" pageNumber="200" phylum="Tracheophyta" rank="species" species="rubescens">
<emphasis id="C3CD7900FFAAFFD491A0F810FCD153E9" box="[668,817,1944,1970]" italics="true" pageId="1" pageNumber="200">N. rubescens</emphasis>
</taxonomicName>
distributed in
<collectingCountry id="89AEE582FFAAFFD490E3F810FBF553E8" box="[991,1045,1945,1971]" name="Laos" pageId="1" pageNumber="200">Laos</collectingCountry>
and
<collectingCountry id="89AEE582FFAAFFD4976FF811FB5253E9" box="[1107,1202,1944,1970]" name="Vietnam" pageId="1" pageNumber="200">Vietnam</collectingCountry>
in having floriferous branchlets rather congested near the top of main branches, ovate-lanceolate laminae
<quantity id="364108F7FFAAFFD4976EF835FB5D538C" box="[1106,1213,1980,2007]" metricMagnitude="-2" metricUnit="m" metricValue="1.75" metricValueMax="2.5" metricValueMin="1.0" pageId="1" pageNumber="200" unit="cm" value="1.75" valueMax="2.5" valueMin="1.0">1–2.5 cm</quantity>
long, reddish purple sepals with non-fimbriate margins in staminate and pistillate flowers, and glabrous ovaries, but clearly distinguished by its larger stipules (3–9 ×
<quantity id="364108F7FFAAFFD492FAF78DFDC35C44" box="[454,547,2052,2079]" metricMagnitude="-3" metricUnit="m" metricValue="1.5" metricValueMax="2.0" metricValueMin="1.0" pageId="1" pageNumber="200" unit="mm" value="1.5" valueMax="2.0" valueMin="1.0">1–2 mm</quantity>
in
<taxonomicName id="36B9DE91FFAAFFD49174F78CFCFD5C45" box="[584,797,2052,2078]" class="Magnoliopsida" family="Phyllanthaceae" genus="Nymphanthus" higherTaxonomySource="GBIF" kingdom="Plantae" order="Malpighiales" pageId="1" pageNumber="200" phylum="Tracheophyta" rank="species" species="namkadingensis">
<emphasis id="C3CD7900FFAAFFD49174F78CFCFD5C45" box="[584,797,2052,2078]" italics="true" pageId="1" pageNumber="200">N. namkadingensis</emphasis>
</taxonomicName>
vs. 0.5–1 ×
<quantity id="364108F7FFAAFFD49097F78DFBD35C44" box="[939,1075,2052,2079]" metricMagnitude="-4" metricUnit="m" metricValue="6.0" metricValueMax="7.0" metricValueMin="5.0" pageId="1" pageNumber="200" unit="mm" value="0.6" valueMax="0.7" valueMin="0.5">0.5–0.7 mm</quantity>
in
<taxonomicName id="36B9DE91FFAAFFD4976BF78CFB095C45" box="[1111,1257,2052,2078]" class="Magnoliopsida" family="Phyllanthaceae" genus="Nymphanthus" higherTaxonomySource="GBIF" kingdom="Plantae" order="Malpighiales" pageId="1" pageNumber="200" phylum="Tracheophyta" rank="species" species="rubescens">
<emphasis id="C3CD7900FFAAFFD4976BF78CFB095C45" box="[1111,1257,2052,2078]" italics="true" pageId="1" pageNumber="200">N. rubescens</emphasis>
</taxonomicName>
), longer pedicels (staminate flowers
<quantity id="364108F7FFA9FFD7925CFF17FE5D54E2" box="[352,445,158,185]" metricMagnitude="-3" metricUnit="m" metricValue="6.0" metricValueMax="8.0" metricValueMin="4.0" pageId="2" pageNumber="201" unit="mm" value="6.0" valueMax="8.0" valueMin="4.0">4–8 mm</quantity>
long and pistillate flowers
<quantity id="364108F7FFA9FFD791CDFF17FC8B54E2" box="[753,875,158,185]" metricMagnitude="-2" metricUnit="m" metricValue="1.3" metricValueMax="1.6" metricValueMin="1.0" pageId="2" pageNumber="201" unit="mm" value="13.0" valueMax="16.0" valueMin="10.0">10–16 mm</quantity>
long vs. ca.
<quantity id="364108F7FFA9FFD790C6FF17FBB154E2" box="[1018,1105,158,185]" metricMagnitude="-3" metricUnit="m" metricValue="1.5" pageId="2" pageNumber="201" unit="mm" value="1.5">1.5 mm</quantity>
and ca.
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, respectively), and connate and annular disc glands of pistillate flowers (vs. free, in the form of rectangular tongues) (
<tableCitation id="BC3B90A9FFA9FFD79638FF4BFAB85487" box="[1284,1368,194,220]" captionStart="TABLE 1" captionStartId="1.[136,224,1002,1026]" captionText="TABLE 1. Morphological comparisons of Nymphanthus namkadingensis with N. chantaranothaii, N. glaucescens, and N. rubescens. The characteristics are derived from Beille (1927) and Pham (2003) (N. glaucescens &amp; N. rubescens), Chantaranothai (2007), and Li &amp; Gilbert (2008) (N. glaucescens), and Pornpongrungrueng et al. (2019) (N. chantaranothaii). Size of stipules of N. rubescens is measured on digitized herbarium specimens listed in Appendix 1." pageId="2" pageNumber="201">Table 1</tableCitation>
).
</paragraph>
</subSubSection>
<caption id="A5C6F59AFFA9FFD793B4F83CFB2B5391" ID-DOI="http://doi.org/10.5281/zenodo.13216388" ID-Zenodo-Dep="13216388" box="[136,1227,1973,1995]" httpUri="https://zenodo.org/record/13216388/files/figure.png" pageId="2" pageNumber="201" startId="2.[136,229,1973,1995]" targetBox="[179,1408,257,1945]" targetPageId="2" targetType="figure">
<paragraph id="F106A512FFA9FFD793B4F83CFB2B5391" blockId="2.[136,1227,1973,1995]" box="[136,1227,1973,1995]" pageId="2" pageNumber="201">
<emphasis id="C3CD7900FFA9FFD793B4F83CFF1E5391" bold="true" box="[136,254,1973,1995]" pageId="2" pageNumber="201">FIGURE 1.</emphasis>
Holotype of
<taxonomicName id="36B9DE91FFA9FFD79241F83CFC305390" authority="Tk. Yamam., Tagane &amp; Soulad." authorityName="Tk. Yamam., Tagane &amp; Soulad." box="[381,976,1973,1995]" class="Magnoliopsida" family="Phyllanthaceae" genus="Nymphanthus" higherTaxonomySource="GBIF" kingdom="Plantae" order="Malpighiales" pageId="2" pageNumber="201" phylum="Tracheophyta" rank="species" species="namkadingensis">
<emphasis id="C3CD7900FFA9FFD79241F83CFD425391" box="[381,674,1973,1994]" italics="true" pageId="2" pageNumber="201">Nymphanthus namkadingensis</emphasis>
Tk.Yamam., Tagane &amp; Soulad.
</taxonomicName>
(
<emphasis id="C3CD7900FFA9FFD790E1F83FFB645391" box="[989,1156,1973,1995]" italics="true" pageId="2" pageNumber="201">Tagane et al. Z74</emphasis>
, FOF).
</paragraph>
</caption>
<caption id="A5C6F59AFFA8FFD693B4F8AEFCA55C4F" ID-DOI="http://doi.org/10.5281/zenodo.13216390" ID-Zenodo-Dep="13216390" httpUri="https://zenodo.org/record/13216390/files/figure.png" pageId="3" pageNumber="202" startId="3.[136,229,1831,1853]" targetBox="[222,1365,190,1807]" targetPageId="3" targetType="figure">
<paragraph id="F106A512FFA8FFD693B4F8AEFCA55C4F" blockId="3.[136,1452,1831,2069]" pageId="3" pageNumber="202">
<emphasis id="C3CD7900FFA8FFD693B4F8AEFF1D5367" bold="true" box="[136,253,1831,1853]" pageId="3" pageNumber="202">FIGURE 2.</emphasis>
<taxonomicName id="36B9DE91FFA8FFD6923FF8AEFCB55366" authority="Tk. Yamam., Tagane &amp; Soulad." authorityName="Tk. Yamam., Tagane &amp; Soulad." box="[259,853,1831,1853]" class="Magnoliopsida" family="Phyllanthaceae" genus="Nymphanthus" higherTaxonomySource="GBIF" kingdom="Plantae" order="Malpighiales" pageId="3" pageNumber="202" phylum="Tracheophyta" rank="species" species="namkadingensis">
<emphasis id="C3CD7900FFA8FFD6923FF8AEFDC85367" box="[259,552,1831,1852]" italics="true" pageId="3" pageNumber="202">Nymphanthus namkadingensis</emphasis>
Tk.Yamam., Tagane &amp; Soulad.
</taxonomicName>
(A, E–G, I–M.
<emphasis id="C3CD7900FFA8FFD690D0F8A1FB725367" box="[1004,1170,1831,1853]" italics="true" pageId="3" pageNumber="202">Tagane et al. Z74</emphasis>
; B–D.
<emphasis id="C3CD7900FFA8FFD697E4F8AEFA455367" box="[1240,1445,1831,1853]" italics="true" pageId="3" pageNumber="202">Souladeth et al. Z595</emphasis>
; H.
<emphasis id="C3CD7900FFA8FFD69399F8C5FEB7533B" box="[165,343,1867,1889]" italics="true" pageId="3" pageNumber="202">Tagane et al. Z128</emphasis>
). A. Habitat; B. Habit; C, D. Portion of floriferous branchlet showing adaxial and abaxial leaf surfaces respectively; E. Abaxial leaf surface; F. Stipule; G. Staminate flower (front view); H. Staminate flowers (lateral view); I. Enlarged view of staminate flower showing stamens and disc glands; J. Pistillate flower (lateral view, sepals detached); K &amp; L. Ovary (lateral view &amp; overhead view, respectively); M. Fruit just before dehiscence. Abbreviations: an, theca of anther; dp, disc gland of pistillate flower; ds, disc gland of staminate flower; ov, ovary, sy, style. Scale bars E = 5 mm, F = 3 mm, I–L = 0.5 mm, and M = 1 mm. Photos: T. Yamamoto (A, E, F, I–M), K. Souvannakhoummane (B), P. Souladeth (C, D), and S. Tagane (G, H).
</paragraph>
</caption>
<subSubSection id="B9A3F699FFAFFFD19381FF17FD9750AB" pageId="4" pageNumber="203" type="description">
<paragraph id="F106A512FFAFFFD19381FF17FF1457AF" blockId="4.[136,1452,158,2093]" pageId="4" pageNumber="203">
<emphasis id="C3CD7900FFAFFFD19381FF17FE0D54E3" bold="true" box="[189,493,158,185]" pageId="4" pageNumber="203">Description:—Subshrubs</emphasis>
up to
<quantity id="364108F7FFAFFFD19100FF17FD6454E2" box="[572,644,158,185]" metricMagnitude="-1" metricUnit="m" metricValue="4.0" pageId="4" pageNumber="203" unit="cm" value="40.0">40 cm</quantity>
tall.
<emphasis id="C3CD7900FFAFFFD191FEFF17FC1154E3" bold="true" box="[706,1009,158,184]" pageId="4" pageNumber="203">Branches and branchlets</emphasis>
reddish light green when young, later becoming brown, glabrous, longitudinally corrugated by outgrowth of superficial tissue; floriferous branchlets congested at upper end of branches.
<emphasis id="C3CD7900FFAFFFD19120FF6FFD9B555B" bold="true" box="[540,635,230,256]" pageId="4" pageNumber="203">Stipules</emphasis>
subulate to lanceolate, 3–9 ×
<quantity id="364108F7FFAFFFD190FAFF6FFBC4555A" box="[966,1060,230,257]" metricMagnitude="-3" metricUnit="m" metricValue="1.5" metricValueMax="2.0" metricValueMin="1.0" pageId="4" pageNumber="203" unit="mm" value="1.5" valueMax="2.0" valueMin="1.0">1–2 mm</quantity>
, glabrous on both surfaces, reddish brown when young, later becoming dark brown, acute to acuminate at apex, rounded to cordate at base, sessile, peltate, margin entire.
<emphasis id="C3CD7900FFAFFFD192BDFEA7FE335513" bold="true" box="[385,467,302,328]" pageId="4" pageNumber="203">Leaves</emphasis>
alternate, 50–60 per branchlet, glabrous throughout; petioles up to
<quantity id="364108F7FFAFFFD19785FEA7FAEE5512" box="[1209,1294,302,329]" metricMagnitude="-3" metricUnit="m" metricValue="1.2" pageId="4" pageNumber="203" unit="mm" value="1.2">1.2 mm</quantity>
long; laminae ovate-lanceolate, 14–25 ×
<quantity id="364108F7FFAFFFD19288FEDBFDC25536" box="[436,546,338,365]" metricMagnitude="-3" metricUnit="m" metricValue="7.5" metricValueMax="10.0" metricValueMin="5.0" pageId="4" pageNumber="203" unit="mm" value="7.5" valueMax="10.0" valueMin="5.0">5–10 mm</quantity>
, thinly coriaceous, reddish gray when young especially on abaxial surface, later becoming green, lustrous on adaxial surface, slightly glaucous on abaxial surface, acute to acuminate at apex, obtuse to rounded, slightly oblique at base, margin entire, revolute, midveins prominent on abaxial surface, lateral veins 8–12 pairs, not prominent on both surfaces.
<emphasis id="C3CD7900FFAFFFD1914DFE37FCFA5583" bold="true" box="[625,794,446,472]" pageId="4" pageNumber="203">Inflorescences</emphasis>
axillary, unisexual; staminate inflorescences 1-flowered or fascicle with 2–3(–4) flowers on proximal to middle axils of branchlets; pistillate inflorescences 1-flowered in distal axils.
<emphasis id="C3CD7900FFAFFFD193F1FD8FFEFB567B" bold="true" box="[205,283,518,544]" pageId="4" pageNumber="203">Bracts</emphasis>
ovate, 1.2–1.5 ×
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, glabrous on both surfaces, acute to acuminate at apex, cuneate at base, margin entire.
<emphasis id="C3CD7900FFAFFFD19217FDA3FDE2561F" bold="true" box="[299,514,554,580]" pageId="4" pageNumber="203">Staminate flowers</emphasis>
: pedicels
<quantity id="364108F7FFAFFFD1914EFDA3FD2F561E" box="[626,719,554,581]" metricMagnitude="-3" metricUnit="m" metricValue="6.0" metricValueMax="8.0" metricValueMin="4.0" pageId="4" pageNumber="203" unit="mm" value="6.0" valueMax="8.0" valueMin="4.0">4–8 mm</quantity>
long, slightly dilated acropetally, glabrous, reddish purple; sepals 4, triangular to rhomboidal, 1.2–1.4 ×
<quantity id="364108F7FFAFFFD19100FDC7FD265632" box="[572,710,590,617]" metricMagnitude="-3" metricUnit="m" metricValue="1.2" metricValueMax="1.3" metricValueMin="1.1" pageId="4" pageNumber="203" unit="mm" value="1.2" valueMax="1.3" valueMin="1.1">1.1–1.3 mm</quantity>
, glabrous, reddish purple, with white banded periphery, obtuse to rounded at apex, margin almost entire, weakly undulate; disc glands 4, elliptic to reniform, alternisepalous; stamens 2, glabrous, filaments united throughout their length, forming a staminal column ca.
<quantity id="364108F7FFAFFFD19777FD1FFB4356EA" box="[1099,1187,662,689]" metricMagnitude="-4" metricUnit="m" metricValue="4.0" pageId="4" pageNumber="203" unit="mm" value="0.4">0.4 mm</quantity>
long, anthers 0.2 ×
<quantity id="364108F7FFAFFFD196B4FD1FFF56568E" metricMagnitude="-4" metricUnit="m" metricValue="6.0" pageId="4" pageNumber="203" unit="mm" value="0.6">0.6 mm</quantity>
, thecae 2 per anther, transversely dehiscent, slightly apart each other by horizontal elongation of connective tissue; pistillode absent.
<emphasis id="C3CD7900FFAFFFD1929FFD57FD8C56A3" bold="true" box="[419,620,734,760]" pageId="4" pageNumber="203">Pistillate flowers</emphasis>
: pedicels
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long, slightly dilated acropetally, glabrous, reddish purple; sepals (5–)6, narrowly elliptic to rhomboidal, 1.5–2 ×
<quantity id="364108F7FFAFFFD1900FFC8BFC5B5746" box="[819,955,770,797]" metricMagnitude="-3" metricUnit="m" metricValue="1.0" metricValueMax="1.2" metricValueMin="0.8" pageId="4" pageNumber="203" unit="mm" value="1.0" valueMax="1.2" valueMin="0.8">0.8–1.2 mm</quantity>
, glabrous, reddish purple, with white banded periphery, obtuse to rounded at apex, margin almost entire, weakly undulate; disc glands connate, annular, forming a ring around lower third to half of ovary, margins undulate to crenate; ovary superior, subglobose, 0.7–0.9 ×
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, 3-locular, glabrous, sparsely verrucose; styles 3, free, up to
<quantity id="364108F7FFAFFFD19013FCE7FC6757D2" box="[815,903,878,905]" metricMagnitude="-4" metricUnit="m" metricValue="1.0" pageId="4" pageNumber="203" unit="mm" value="0.1">0.1 mm</quantity>
long, glabrous; stigmas almost completely bifid to base,
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long, glabrous; staminodes absent.
<emphasis id="C3CD7900FFAFFFD1903AFC1BFC8657F7" bold="true" box="[774,870,914,940]" pageId="4" pageNumber="203">Capsule</emphasis>
ellipsoid, 1.6–2.8 ×
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, glabrous, smooth to verrucose, reddish black.
<emphasis id="C3CD7900FFAFFFD192FFFC3FFDE6578B" bold="true" box="[451,518,950,976]" pageId="4" pageNumber="203">Seeds</emphasis>
trigonous, 2 per locule, light brown, 1.5 ×
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, smooth; fruiting pedicels
<quantity id="364108F7FFAFFFD19659FC3FFF5457AE" metricMagnitude="-2" metricUnit="m" metricValue="1.55" metricValueMax="1.9" metricValueMin="1.2" pageId="4" pageNumber="203" unit="mm" value="15.5" valueMax="19.0" valueMin="12.0">12–19 mm</quantity>
long.
</paragraph>
<paragraph id="F106A512FFAFFFD19381FC77FD9750AB" blockId="4.[136,1452,158,2093]" pageId="4" pageNumber="203">
<emphasis id="C3CD7900FFAFFFD19381FC77FDB95043" bold="true" box="[189,601,1022,1048]" pageId="4" pageNumber="203">Additional specimen examined:—</emphasis>
<materialsCitation id="41D1AF4FFFAFFFD19165FC77FF3650DF" ID-GBIF-Occurrence="4911881301" collectingDate="2023-09-03" collectionCode="FOF, KAG, VNM" collectorName="S. Tagane" country="Laos" county="Viengthong District" elevation="378" latitude="18.379383" location="Nam Kading National Protected Area" longLatPrecision="1" longitude="104.43491" municipality="Ban Hin Ngon" pageId="4" pageNumber="203" specimenCount="1" stateProvince="Bolikhamxai">
<collectingCountry id="89AEE582FFAFFFD19165FC77FD465043" box="[601,678,1022,1048]" name="Laos" pageId="4" pageNumber="203">LAOS</collectingCountry>
.
<collectingRegion id="337D6BF0FFAFFFD19188FC77FC585043" box="[692,952,1022,1048]" country="Laos" name="Bolikhamxai" pageId="4" pageNumber="203">Bolikhamxai Province</collectingRegion>
:
<collectingCounty id="1867DD9EFFAFFFD190F9FC77FB4A5043" box="[965,1194,1022,1048]" pageId="4" pageNumber="203">Viengthong District</collectingCounty>
,
<collectingMunicipality id="11623F68FFAFFFD19784FC76FA865042" box="[1208,1382,1022,1049]" pageId="4" pageNumber="203">Ban Hin Ngon</collectingMunicipality>
,
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, in seasonal broad-leaved evergreen forest mixed with bamboo, on rocks close to a stream,
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,
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,
<quantity id="364108F7FFAFFFD19179FBCFFD6D503A" box="[581,653,1094,1121]" metricMagnitude="2" metricUnit="m" metricValue="3.78" pageId="4" pageNumber="203" unit="m" value="378.0">
<elevation id="7A944221FFAFFFD19179FBCFFD6D503A" box="[581,653,1094,1121]" metricMagnitude="2" metricUnit="m" metricValue="3.78" pageId="4" pageNumber="203" unit="m" value="378.0">378 m</elevation>
</quantity>
elev.,
<date id="850783D2FFAFFFD191E4FBCFFC49503B" box="[728,937,1094,1120]" pageId="4" pageNumber="203" value="2023-09-03">
<collectingDate id="95437A3AFFAFFFD191E4FBCFFC49503B" box="[728,937,1094,1120]" pageId="4" pageNumber="203" value="2023-09-03">3 September 2023</collectingDate>
</date>
,
<emphasis id="C3CD7900FFAFFFD19089FBCEFB45503B" box="[949,1189,1094,1121]" italics="true" pageId="4" pageNumber="203">
<collectorName id="5C4CC0C4FFAFFFD19089FBCEFBC3503B" box="[949,1059,1095,1121]" pageId="4" pageNumber="203">S. Tagane</collectorName>
et al. Z128
</emphasis>
[fl. &amp; fr.] (
<collectionCode id="97A83DD7FFAFFFD1961AFBCFFABC503B" box="[1318,1372,1094,1120]" pageId="4" pageNumber="203">FOF</collectionCode>
,
<collectionCode id="97A83DD7FFAFFFD19654FBCFFA47503B" box="[1384,1447,1094,1120]" country="Japan" httpUri="http://biocol.org/urn:lsid:biocol.org:col:15116" lsid="urn:lsid:biocol.org:col:15116" name="Kagoshima University Museum - Herbarium" pageId="4" pageNumber="203" type="Herbarium">KAG</collectionCode>
,
<collectionCode id="97A83DD7FFAFFFD193B4FBE3FF2E50DF" box="[136,206,1130,1156]" country="Viet Nam" name="Institute of Tropical Biology" pageId="4" pageNumber="203" type="Herbarium">VNM</collectionCode>
)
</materialsCitation>
;
<materialsCitation id="41D1AF4FFFAFFFD193DDFBE3FC4650F3" ID-GBIF-Occurrence="4911881303" collectingDate="2023-11-04" collectionCode="FOF, KAG, VNM" collectorName="P. Souladeth" country="Laos" elevation="427" latitude="18.485216" location="Ban Nam Tek" longLatPrecision="1" longitude="104.12676" municipality="Bolikhan District" pageId="4" pageNumber="203" specimenCount="1">
<collectingMunicipality id="11623F68FFAFFFD193DDFBE3FE4650DF" box="[225,422,1130,1156]" pageId="4" pageNumber="203">Bolikhan District</collectingMunicipality>
,
<location id="F466F3C9FFAFFFD1928CFBE2FDAE50DF" LSID="urn:lsid:plazi:treatment:79101404FFAAFFD093B4F9DDFC4455A7:F466F3C9FFAFFFD1928CFBE2FDAE50DF" box="[432,590,1130,1157]" country="Laos" latitude="18.485216" longLatPrecision="1" longitude="104.12676" municipality="Bolikhan District" name="Ban Nam Tek" pageId="4" pageNumber="203">Ban Nam Tek</location>
, in broad-leaved evergreen forest,
<geoCoordinate id="948DC3D5FFAFFFD190ECFBE3FB8950DE" box="[976,1129,1130,1157]" degrees="18.485217" direction="north" orientation="latitude" pageId="4" pageNumber="203" precision="1" value="18.485216">18.485217°N</geoCoordinate>
,
<geoCoordinate id="948DC3D5FFAFFFD19748FBE3FAF850DF" box="[1140,1304,1130,1156]" degrees="104.126761" direction="east" orientation="longitude" pageId="4" pageNumber="203" precision="1" value="104.12676">104.126761°E</geoCoordinate>
,
<quantity id="364108F7FFAFFFD1961FFBE3FA8A50DE" box="[1315,1386,1130,1157]" metricMagnitude="2" metricUnit="m" metricValue="4.27" pageId="4" pageNumber="203" unit="m" value="427.0">
<elevation id="7A944221FFAFFFD1961FFBE3FA8A50DE" box="[1315,1386,1130,1157]" metricMagnitude="2" metricUnit="m" metricValue="4.27" pageId="4" pageNumber="203" unit="m" value="427.0">427 m</elevation>
</quantity>
elev.,
<date id="850783D2FFAFFFD193B4FB07FEBB50F3" box="[136,347,1166,1192]" pageId="4" pageNumber="203" value="2023-11-04">
<collectingDate id="95437A3AFFAFFFD193B4FB07FEBB50F3" box="[136,347,1166,1192]" pageId="4" pageNumber="203" value="2023-11-04">4 November 2023</collectingDate>
</date>
,
<emphasis id="C3CD7900FFAFFFD19255FB06FD6150F3" box="[361,641,1166,1192]" italics="true" pageId="4" pageNumber="203">
<collectorName id="5C4CC0C4FFAFFFD19255FB06FE1850F3" box="[361,504,1166,1192]" pageId="4" pageNumber="203">P. Souladeth</collectorName>
et al. Z595
</emphasis>
[fr.] (
<collectionCode id="97A83DD7FFAFFFD191FBFB07FD1D50F3" box="[711,765,1166,1192]" pageId="4" pageNumber="203">FOF</collectionCode>
,
<collectionCode id="97A83DD7FFAFFFD19037FB07FCAA50F3" box="[779,842,1166,1192]" country="Japan" httpUri="http://biocol.org/urn:lsid:biocol.org:col:15116" lsid="urn:lsid:biocol.org:col:15116" name="Kagoshima University Museum - Herbarium" pageId="4" pageNumber="203" type="Herbarium">KAG</collectionCode>
,
<collectionCode id="97A83DD7FFAFFFD19064FB07FC7E50F3" box="[856,926,1166,1192]" country="Viet Nam" name="Institute of Tropical Biology" pageId="4" pageNumber="203" type="Herbarium">VNM</collectionCode>
)
</materialsCitation>
;
<materialsCitation id="41D1AF4FFFAFFFD19089FB07FD9350AB" ID-GBIF-Occurrence="4911881302" collectingDate="2024-03-15" collectionCode="FOF, KAG, VNM" collectorName="S. Tagane" country="Laos" elevation="537" latitude="18.22244" location="Ban Kaengbid" longLatPrecision="1" longitude="104.50158" municipality="Khamkeuth District" pageId="4" pageNumber="203" specimenCount="1">
<collectingMunicipality id="11623F68FFAFFFD19089FB07FB7850F3" box="[949,1176,1166,1192]" pageId="4" pageNumber="203">Khamkeuth District</collectingMunicipality>
, near
<location id="F466F3C9FFAFFFD197DDFB06FA6850F3" LSID="urn:lsid:plazi:treatment:79101404FFAAFFD093B4F9DDFC4455A7:F466F3C9FFAFFFD197DDFB06FA6850F3" box="[1249,1416,1166,1193]" country="Laos" latitude="18.22244" longLatPrecision="1" longitude="104.50158" municipality="Khamkeuth District" name="Ban Kaengbid" pageId="4" pageNumber="203">Ban Kaengbid</location>
, in broad-leaved evergreen forest, on rocks along a stream,
<geoCoordinate id="948DC3D5FFAFFFD19035FB3BFC745097" box="[777,916,1202,1228]" degrees="18.22244" direction="north" orientation="latitude" pageId="4" pageNumber="203" precision="1" value="18.22244">18.22244°N</geoCoordinate>
,
<geoCoordinate id="948DC3D5FFAFFFD1909DFB3BFBD75096" box="[929,1079,1202,1229]" degrees="104.50158" direction="east" orientation="longitude" pageId="4" pageNumber="203" precision="1" value="104.50158">104.50158°E</geoCoordinate>
,
<quantity id="364108F7FFAFFFD19778FB3BFB6C5096" box="[1092,1164,1202,1229]" metricMagnitude="2" metricUnit="m" metricValue="5.37" pageId="4" pageNumber="203" unit="m" value="537.0">
<elevation id="7A944221FFAFFFD19778FB3BFB6C5096" box="[1092,1164,1202,1229]" metricMagnitude="2" metricUnit="m" metricValue="5.37" pageId="4" pageNumber="203" unit="m" value="537.0">537 m</elevation>
</quantity>
elev.,
<date id="850783D2FFAFFFD197E4FB3BFA6A5097" box="[1240,1418,1202,1229]" pageId="4" pageNumber="203" value="2024-03-15">
<collectingDate id="95437A3AFFAFFFD197E4FB3BFA6A5097" box="[1240,1418,1202,1229]" pageId="4" pageNumber="203" value="2024-03-15">15 March 2024</collectingDate>
</date>
,
<emphasis id="C3CD7900FFAFFFD196AAFB3AFEB950AB" italics="true" pageId="4" pageNumber="203">
<collectorName id="5C4CC0C4FFAFFFD196AAFB3AFF3950AB" pageId="4" pageNumber="203">S. Tagane</collectorName>
et al. Z837
</emphasis>
[fl.] (
<collectionCode id="97A83DD7FFAFFFD192A5FB5FFE2F50AB" box="[409,463,1238,1264]" pageId="4" pageNumber="203">FOF</collectionCode>
,
<collectionCode id="97A83DD7FFAFFFD192E6FB5FFDF950AB" box="[474,537,1238,1264]" country="Japan" httpUri="http://biocol.org/urn:lsid:biocol.org:col:15116" lsid="urn:lsid:biocol.org:col:15116" name="Kagoshima University Museum - Herbarium" pageId="4" pageNumber="203" type="Herbarium">KAG</collectionCode>
,
<collectionCode id="97A83DD7FFAFFFD19118FB5FFD8A50AB" box="[548,618,1238,1264]" country="Viet Nam" name="Institute of Tropical Biology" pageId="4" pageNumber="203" type="Herbarium">VNM</collectionCode>
)
</materialsCitation>
.
</paragraph>
</subSubSection>
<subSubSection id="B9A3F699FFAFFFD19381FB73FD4651FF" pageId="4" pageNumber="203" type="distribution">
<paragraph id="F106A512FFAFFFD19381FB73FB305163" blockId="4.[136,1452,158,2093]" pageId="4" pageNumber="203">
<emphasis id="C3CD7900FFAFFFD19381FB73FEB9514F" bold="true" box="[189,345,1274,1300]" pageId="4" pageNumber="203">Distribution:</emphasis>
—
<collectingCountry id="89AEE582FFAFFFD1924BFB73FE22514F" box="[375,450,1274,1300]" name="Laos" pageId="4" pageNumber="203">LAOS</collectingCountry>
.
<collectingRegion id="337D6BF0FFAFFFD192F0FB73FD27514F" box="[460,711,1274,1300]" country="Laos" name="Bolikhamxai" pageId="4" pageNumber="203">Bolikhamxai Province</collectingRegion>
(so far four localities from Bolikhan District, Khamkeuth District, Pakkading District, and Viengthong District are known, in Nam Kading National Protected Area).
</paragraph>
<paragraph id="F106A512FFAFFFD19381FACBFD4651FF" blockId="4.[136,1452,158,2093]" pageId="4" pageNumber="203">
<emphasis id="C3CD7900FFAFFFD19381FACBFE535107" bold="true" box="[189,435,1346,1372]" pageId="4" pageNumber="203">Habitat and ecology:</emphasis>
—
<taxonomicName id="36B9DE91FFAFFFD192F3FACBFCC25107" box="[463,802,1346,1372]" class="Magnoliopsida" family="Phyllanthaceae" genus="Nymphanthus" higherTaxonomySource="GBIF" kingdom="Plantae" order="Malpighiales" pageId="4" pageNumber="203" phylum="Tracheophyta" rank="species" species="namkadingensis">
<emphasis id="C3CD7900FFAFFFD192F3FACBFCC25107" box="[463,802,1346,1372]" italics="true" pageId="4" pageNumber="203">Nymphanthus namkadingensis</emphasis>
</taxonomicName>
is rheophytic on rocks along streams (
<figureCitation id="6982B997FFAFFFD197FBFACBFAFF5107" box="[1223,1311,1346,1372]" captionStart="FIGURE 2" captionStartId="3.[136,229,1831,1853]" captionTargetBox="[222,1365,190,1807]" captionTargetId="figure-18@3.[222,1365,190,1807]" captionTargetPageId="3" captionText="FIGURE 2. Nymphanthus namkadingensis Tk.Yamam., Tagane &amp; Soulad. (A, E–G, I–M. Tagane et al. Z74; B–D. Souladeth et al. Z595; H. Tagane et al. Z128). A. Habitat; B. Habit; C, D. Portion of floriferous branchlet showing adaxial and abaxial leaf surfaces respectively; E. Abaxial leaf surface; F. Stipule; G. Staminate flower (front view); H. Staminate flowers (lateral view); I. Enlarged view of staminate flower showing stamens and disc glands; J. Pistillate flower (lateral view, sepals detached); K &amp; L. Ovary (lateral view &amp; overhead view, respectively); M. Fruit just before dehiscence. Abbreviations: an, theca of anther; dp, disc gland of pistillate flower; ds, disc gland of staminate flower; ov, ovary, sy, style. Scale bars E = 5 mm, F = 3 mm, I–L = 0.5 mm, and M = 1 mm. Photos: T. Yamamoto (A, E, F, I–M), K. Souvannakhoummane (B), P. Souladeth (C, D), and S. Tagane (G, H)." figureDoi="http://doi.org/10.5281/zenodo.13216390" httpUri="https://zenodo.org/record/13216390/files/figure.png" pageId="4" pageNumber="203">Fig. 2A</figureCitation>
), in seasonal broad-leaved evergreen forests, at
<quantity id="364108F7FFAFFFD19134FAEFFD6651DA" box="[520,646,1382,1409]" metricMagnitude="2" metricUnit="m" metricValue="4.25" metricValueMax="5.5" metricValueMin="3.0" pageId="4" pageNumber="203" unit="m" value="425.0" valueMax="550.0" valueMin="300.0">300–550 m</quantity>
elev. Flowering specimens were collected in March and September, and fruiting specimens in September and November.
</paragraph>
</subSubSection>
<subSubSection id="B9A3F699FFAFFFD09381FA27FC4455A7" lastPageId="5" lastPageNumber="204" pageId="4" pageNumber="203" type="etymology">
<paragraph id="F106A512FFAFFFD19381FA27FDDC51B7" blockId="4.[136,1452,158,2093]" pageId="4" pageNumber="203">
<emphasis id="C3CD7900FFAFFFD19381FA27FEA85193" bold="true" box="[189,328,1454,1480]" pageId="4" pageNumber="203">Etymology:</emphasis>
—The specific epithet
<taxonomicName id="36B9DE91FFAFFFD1916FFA27FCE75193" box="[595,775,1454,1480]" class="Magnoliopsida" family="Phyllanthaceae" genus="Nymphanthus" higherTaxonomySource="GBIF" kingdom="Plantae" order="Malpighiales" pageId="4" pageNumber="203" phylum="Tracheophyta" rank="species" species="namkadingensis">
<emphasis id="C3CD7900FFAFFFD1916FFA27FCE75193" box="[595,775,1454,1480]" italics="true" pageId="4" pageNumber="203">namkadingensis</emphasis>
</taxonomicName>
is derived from Nam Kading National Protected Area, in which the species was first discovered.
</paragraph>
<paragraph id="F106A512FFAFFFD19381FA7FFCCF526F" blockId="4.[136,1452,158,2093]" pageId="4" pageNumber="203">
<emphasis id="C3CD7900FFAFFFD19381FA7FFE50524B" bold="true" box="[189,432,1526,1552]" pageId="4" pageNumber="203">Vernacular name:—</emphasis>
[Mak yom noy namkading (“Mak yom” means
<taxonomicName id="36B9DE91FFAFFFD19787FA7FFA4B524B" box="[1211,1451,1526,1552]" pageId="4" pageNumber="203">
<emphasis id="C3CD7900FFAFFFD19787FA7FFAB5524B" box="[1211,1365,1526,1552]" italics="true" pageId="4" pageNumber="203">Nymphanthus</emphasis>
species
</taxonomicName>
in general in Lao; “noy” means small fruit), suggested here].
</paragraph>
<paragraph id="F106A512FFAFFFD19381F9B7FDED539B" blockId="4.[136,1452,158,2093]" pageId="4" pageNumber="203">
<emphasis id="C3CD7900FFAFFFD19381F9B7FD475203" bold="true" box="[189,679,1598,1624]" pageId="4" pageNumber="203">Preliminary conservation assessment:—</emphasis>
Endangered (EN). During a total of 22 days of our field surveys conducted in/around the Nam Kading National Protected Area in 2016, 2023, and 2024,
<taxonomicName id="36B9DE91FFAFFFD1976BF9EBFA4B5227" box="[1111,1451,1634,1660]" class="Magnoliopsida" family="Phyllanthaceae" genus="Nymphanthus" higherTaxonomySource="GBIF" kingdom="Plantae" order="Malpighiales" pageId="4" pageNumber="203" phylum="Tracheophyta" rank="species" species="namkadingensis">
<emphasis id="C3CD7900FFAFFFD1976BF9EBFA4B5227" box="[1111,1451,1634,1660]" italics="true" pageId="4" pageNumber="203">Nymphanthus namkadingensis</emphasis>
</taxonomicName>
was found in four localities at the streamside of the seasonal broad-leaved evergreen forest at
<quantity id="364108F7FFAFFFD19793F90FFACF52FA" box="[1199,1327,1670,1697]" metricMagnitude="2" metricUnit="m" metricValue="4.25" metricValueMax="5.5" metricValueMin="3.0" pageId="4" pageNumber="203" unit="m" value="425.0" valueMax="550.0" valueMin="300.0">300–550 m</quantity>
elev., with each 40–60 mature individuals. Based on the four locations, the area of occupancy (AOO, defined in
<bibRefCitation id="9528D8E3FFAFFFD1963FF923FA6A529F" author="IUCN" box="[1283,1418,1706,1732]" pageId="4" pageNumber="203" refId="ref4314" refString="IUCN (2024) Guidelines for Using the IUCN Red List Categories and Criteria, version 16. Prepared by the Standards and Petitions Committee. Downloadable from: https: // www. iucnredlist. org / documents / RedListGuidelines. pdf (accessed 17 April 2024)" type="book" year="2024">IUCN 2024</bibRefCitation>
) is
<quantity id="364108F7FFAFFFD193B4F947FF2F52B3" box="[136,207,1742,1768]" metricMagnitude="4" metricUnit="m" metricValue="1.6" pageId="4" pageNumber="203" unit="km" value="16.0">16 km</quantity>
<superScript id="06CC085AFFAFFFD193F3F947FF375287" attach="left" box="[207,215,1742,1756]" fontSize="6" pageId="4" pageNumber="203">2</superScript>
and the extent of occurrence (EOO) is calculated as
<quantity id="364108F7FFAFFFD1901AF947FC9B52B3" box="[806,891,1742,1768]" metricMagnitude="5" metricUnit="m" metricValue="3.13" pageId="4" pageNumber="203" unit="km" value="313.0">313 km</quantity>
<superScript id="06CC085AFFAFFFD19047F947FC635287" attach="left" box="[891,899,1742,1756]" fontSize="6" pageId="4" pageNumber="203">2</superScript>
using GeoCAT (
<bibRefCitation id="9528D8E3FFAFFFD19703F947FACD52B3" author="Bachman, S. &amp; Moat, J. &amp; Hill, A. W. &amp; de la Torre, J. &amp; Scott, B." box="[1087,1325,1742,1768]" pageId="4" pageNumber="203" refId="ref3747" refString="Bachman, S., Moat, J., Hill, A. W., de la Torre, J. &amp; Scott, B. (2011) Supporting Red List threat assessments with GeoCAT: geospatial conservation assessment tool. Available from: https: // geocat. iucnredlist. org / (accessed 13 December 2023) https: // doi. org / 10.3897 / zookeys. 150.2109" type="url" year="2011">
Bachman
<emphasis id="C3CD7900FFAFFFD1978EF946FB0A52B3" box="[1202,1258,1742,1768]" italics="true" pageId="4" pageNumber="203">et al.</emphasis>
2011
</bibRefCitation>
). However, given that
<taxonomicName id="36B9DE91FFAFFFD193C3F97AFE345357" box="[255,468,1778,1804]" class="Magnoliopsida" family="Phyllanthaceae" genus="Nymphanthus" higherTaxonomySource="GBIF" kingdom="Plantae" order="Malpighiales" pageId="4" pageNumber="203" phylum="Tracheophyta" rank="species" species="namkadingensis">
<emphasis id="C3CD7900FFAFFFD193C3F97AFE345357" box="[255,468,1778,1804]" italics="true" pageId="4" pageNumber="203">N. namkadingensis</emphasis>
</taxonomicName>
grows only open to semi-shaded streamside at elev.
<quantity id="364108F7FFAFFFD1971AF97BFB475356" box="[1062,1191,1778,1805]" metricMagnitude="2" metricUnit="m" metricValue="4.25" metricValueMax="5.5" metricValueMin="3.0" pageId="4" pageNumber="203" unit="m" value="425.0" valueMax="550.0" valueMin="300.0">300–550 m</quantity>
, the exact EOO should be more narrowly restricted. Although the area is encompassed with the Nam Kading National Protected Area, several dams have been constructed in the protected area, which must have already lost a large area of the habitat of
<taxonomicName id="36B9DE91FFAFFFD196AEF8B2FEDC5323" class="Magnoliopsida" family="Phyllanthaceae" genus="Nymphanthus" higherTaxonomySource="GBIF" kingdom="Plantae" order="Malpighiales" pageId="4" pageNumber="203" phylum="Tracheophyta" rank="species" species="namkadingensis">
<emphasis id="C3CD7900FFAFFFD196AEF8B2FEDC5323" italics="true" pageId="4" pageNumber="203">N. namkadingensis</emphasis>
</taxonomicName>
. In addition, some of the vicinities are being converted to agricultural fields, which may also endanger the habitat of the species. Thus, we propose Endangered (EN) according to the IUCN criteria of B1a &amp; b (i, ii, iii), B2a &amp; b (i, ii, iii), and D (
<bibRefCitation id="9528D8E3FFAFFFD1924BF82FFDE2539B" author="IUCN" box="[375,514,1958,1984]" pageId="4" pageNumber="203" refId="ref4314" refString="IUCN (2024) Guidelines for Using the IUCN Red List Categories and Criteria, version 16. Prepared by the Standards and Petitions Committee. Downloadable from: https: // www. iucnredlist. org / documents / RedListGuidelines. pdf (accessed 17 April 2024)" type="book" year="2024">IUCN 2024</bibRefCitation>
).
</paragraph>
<paragraph id="F106A512FFAFFFD09381F843FD1C557F" blockId="4.[136,1452,158,2093]" lastBlockId="5.[136,1452,158,509]" lastPageId="5" lastPageNumber="204" pageId="4" pageNumber="203">
<emphasis id="C3CD7900FFAFFFD19381F843FEC053BF" bold="true" box="[189,288,1994,2020]" pageId="4" pageNumber="203">Note 1:</emphasis>
—
<taxonomicName id="36B9DE91FFAFFFD19200F843FD7D53BF" box="[316,669,1994,2020]" class="Magnoliopsida" family="Phyllanthaceae" genus="Nymphanthus" higherTaxonomySource="GBIF" kingdom="Plantae" order="Malpighiales" pageId="4" pageNumber="203" phylum="Tracheophyta" rank="species" species="namkadingensis">
<emphasis id="C3CD7900FFAFFFD19200F843FD7D53BF" box="[316,669,1994,2020]" italics="true" pageId="4" pageNumber="203">Nymphanthus namkadingensis</emphasis>
</taxonomicName>
is also similar to
<taxonomicName id="36B9DE91FFAFFFD1909CF842FB6153BF" box="[928,1153,1994,2020]" class="Magnoliopsida" family="Phyllanthaceae" genus="Nymphanthus" higherTaxonomySource="GBIF" kingdom="Plantae" order="Malpighiales" pageId="4" pageNumber="203" phylum="Tracheophyta" rank="species" species="chantaranothaii">
<emphasis id="C3CD7900FFAFFFD1909CF842FB6153BF" box="[928,1153,1994,2020]" italics="true" pageId="4" pageNumber="203">N. chantaranothaii</emphasis>
</taxonomicName>
distributed in
<collectingCountry id="89AEE582FFAFFFD19674F843FA4C53BF" box="[1352,1452,1994,2020]" name="Thailand" pageId="4" pageNumber="203">Thailand</collectingCountry>
(
<bibRefCitation id="9528D8E3FFAFFFD193B3F867FE1E5C53" author="Pornpongrungrueng, P. &amp; Chantaranothai, P. &amp; Parnell, J. A. N. &amp; Hodkinson, T. R." box="[143,510,2030,2056]" pageId="4" pageNumber="203" pagination="35 - 44" refId="ref4760" refString="Pornpongrungrueng, P., Chantaranothai, P., Parnell, J. A. N. &amp; Hodkinson, T. R. (2019) Two new species of Phyllanthus (Phyllanthaceae) from Thailand. PhytoKeys 136: 35 - 44. https: // doi. org / 10.3897 / phytokeys. 136.47625" type="journal article" year="2019">
Pornpongrungrueng
<emphasis id="C3CD7900FFAFFFD19240F866FE585C53" box="[380,440,2030,2056]" italics="true" pageId="4" pageNumber="203">et al.</emphasis>
2019
</bibRefCitation>
), and
<taxonomicName id="36B9DE91FFAFFFD19174F866FD135C53" authorityName="R. W. Bouman" baseAuthorityName="Baillon ex Miquel" baseAuthorityYear="1859" box="[584,755,2030,2056]" class="Magnoliopsida" family="Phyllanthaceae" genus="Nymphanthus" higherTaxonomySource="GBIF" kingdom="Plantae" order="Malpighiales" pageId="4" pageNumber="203" phylum="Tracheophyta" rank="species" species="glaucescens">
<emphasis id="C3CD7900FFAFFFD19174F866FD135C53" box="[584,755,2030,2056]" italics="true" pageId="4" pageNumber="203">N. glaucescens</emphasis>
</taxonomicName>
distributed in
<collectingCountry id="89AEE582FFAFFFD1909DF867FC3B5C53" box="[929,987,2030,2056]" name="India" pageId="4" pageNumber="203">India</collectingCountry>
to southern
<collectingCountry id="89AEE582FFAFFFD1974CF867FB535C53" box="[1136,1203,2030,2056]" name="China" pageId="4" pageNumber="203">China</collectingCountry>
and western
<collectingCountry id="89AEE582FFAFFFD1966FF867FA4C5C53" box="[1363,1452,2030,2056]" name="Malaysia" pageId="4" pageNumber="203">Malesia</collectingCountry>
(
<bibRefCitation id="9528D8E3FFAFFFD193B3F79BFE9E5C77" author="Chantaranothai, P." box="[143,382,2066,2092]" pageId="4" pageNumber="203" pagination="473 - 507" refId="ref4165" refString="Chantaranothai, P. (2007) Phyllanthus. In: van Welzen, P. C. &amp; Chayamarit, K. (Eds.) Flora of Thailand. Vol. 8. part 2. The Forest Herbarium, National Park, Wildlife and Plant Conservation Department, Bangkok, pp. 473 - 507." type="book chapter" year="2007">Chantaranothai 2007</bibRefCitation>
;
<bibRefCitation id="9528D8E3FFAFFFD192B6F79BFDB75C77" author="Li, P. T. &amp; Gilbert, M. G." box="[394,599,2066,2092]" pageId="4" pageNumber="203" refId="ref4439" refString="Li, P. T. &amp; Gilbert, M. G. (2008) Phyllanthus. In: Wu, Z. Y., Raven, P. H. &amp; Hong, D. Y. (Eds.) Flora of China. Vol. 11. Science Press, Beijing and Missouri Botanical Garden, St. Louis, pp. 180 - 190." type="book" year="2008">Li &amp; Gilbert 2008</bibRefCitation>
) in having elliptic laminae
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long and red to purple sepals, but clearly distinguished from them by its larger stipules (3–9 ×
<quantity id="364108F7FFAEFFD091D3FF17FCAE54E2" box="[751,846,158,185]" metricMagnitude="-3" metricUnit="m" metricValue="1.5" metricValueMax="2.0" metricValueMin="1.0" pageId="5" pageNumber="204" unit="mm" value="1.5" valueMax="2.0" valueMin="1.0">1–2 mm</quantity>
in
<taxonomicName id="36B9DE91FFAEFFD0904AFF16FBAD54E3" box="[886,1101,158,184]" class="Magnoliopsida" family="Phyllanthaceae" genus="Nymphanthus" higherTaxonomySource="GBIF" kingdom="Plantae" order="Malpighiales" pageId="5" pageNumber="204" phylum="Tracheophyta" rank="species" species="namkadingensis">
<emphasis id="C3CD7900FFAEFFD0904AFF16FBAD54E3" box="[886,1101,158,184]" italics="true" pageId="5" pageNumber="204">N. namkadingensis</emphasis>
</taxonomicName>
vs. 1.4–2 ×
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in
<taxonomicName id="36B9DE91FFAEFFD096AEFF16FEDC5487" class="Magnoliopsida" family="Phyllanthaceae" genus="Nymphanthus" higherTaxonomySource="GBIF" kingdom="Plantae" order="Malpighiales" pageId="5" pageNumber="204" phylum="Tracheophyta" rank="species" species="chantaranothaii">
<emphasis id="C3CD7900FFAEFFD096AEFF16FEDC5487" italics="true" pageId="5" pageNumber="204">N. chantaranothaii</emphasis>
</taxonomicName>
and 1.3–4 ×
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in
<taxonomicName id="36B9DE91FFAEFFD09150FF4AFCF55487" authorityName="R. W. Bouman" baseAuthorityName="Baillon ex Miquel" baseAuthorityYear="1859" box="[620,789,194,220]" class="Magnoliopsida" family="Phyllanthaceae" genus="Nymphanthus" higherTaxonomySource="GBIF" kingdom="Plantae" order="Malpighiales" pageId="5" pageNumber="204" phylum="Tracheophyta" rank="species" species="glaucescens">
<emphasis id="C3CD7900FFAEFFD09150FF4AFCF55487" box="[620,789,194,220]" italics="true" pageId="5" pageNumber="204">N. glaucescens</emphasis>
</taxonomicName>
), more lateral nerves on laminae (8–12 pairs vs. 4–7 pairs and 4–6 pairs, respectively), and sepals with non-fimbriate apexes and slightly undulate, almost entire margins (vs. apexes and margins fimbriate in both species) (
<tableCitation id="BC3B90A9FFAEFFD091ABFE83FD0B557F" box="[663,747,266,292]" captionStart="TABLE 1" captionStartId="1.[136,224,1002,1026]" captionText="TABLE 1. Morphological comparisons of Nymphanthus namkadingensis with N. chantaranothaii, N. glaucescens, and N. rubescens. The characteristics are derived from Beille (1927) and Pham (2003) (N. glaucescens &amp; N. rubescens), Chantaranothai (2007), and Li &amp; Gilbert (2008) (N. glaucescens), and Pornpongrungrueng et al. (2019) (N. chantaranothaii). Size of stipules of N. rubescens is measured on digitized herbarium specimens listed in Appendix 1." pageId="5" pageNumber="204">Table 1</tableCitation>
).
</paragraph>
<paragraph id="F106A512FFAEFFD09381FEA7FC4455A7" blockId="5.[136,1452,158,509]" pageId="5" pageNumber="204">
<emphasis id="C3CD7900FFAEFFD09381FEA7FEF35513" bold="true" box="[189,275,302,328]" pageId="5" pageNumber="204">Note 2:</emphasis>
—
<bibRefCitation id="9528D8E3FFAEFFD0920CFEA6FDFF5513" author="Bouman, R. W. &amp; Kessler, P. J. A. &amp; Telford, I. R. H. &amp; Bruhl, J. J. &amp; Strijk, J. S. &amp; Saunders, R. M. K. &amp; Esser, H. - J. &amp; Falcon-Hidalgo, B. &amp; van Welzen, P. C." box="[304,543,302,329]" pageId="5" pageNumber="204" pagination="1 - 100" refId="ref4028" refString="Bouman, R. W., Kessler, P. J. A., Telford, I. R. H., Bruhl, J. J., Strijk, J. S., Saunders, R. M. K., Esser, H. - J., Falcon-Hidalgo, B. &amp; van Welzen, P. C. (2022) A revised phylogenetic classification of tribe Phyllantheae (Phyllanthaceae). Phytotaxa 540 (1): 1 - 100. https: // doi. org / 10.11646 / phytotaxa. 540.1.1" type="journal article" year="2022">
Bouman
<emphasis id="C3CD7900FFAEFFD092A9FEA6FE2E5513" box="[405,462,302,328]" italics="true" pageId="5" pageNumber="204">et al.</emphasis>
(2022)
</bibRefCitation>
divided the genus into two sections: section
<taxonomicName id="36B9DE91FFAEFFD09729FEA7FB4F5513" box="[1045,1199,302,328]" class="Magnoliopsida" family="Phyllanthaceae" genus="Nymphanthus" higherTaxonomySource="GBIF" kingdom="Plantae" order="Malpighiales" pageId="5" pageNumber="204" phylum="Tracheophyta" rank="genus">
<emphasis id="C3CD7900FFAEFFD09729FEA7FB4F5513" box="[1045,1199,302,328]" italics="true" pageId="5" pageNumber="204">Nymphanthus</emphasis>
</taxonomicName>
and section
<taxonomicName id="36B9DE91FFAEFFD09607FEA6FE1E5536" authority="(Blume 1826: 582) R. W. Bouman" authorityName="R. W. Bouman" baseAuthorityName="Blume" baseAuthorityPageNumber="582" baseAuthorityYear="1826" class="Magnoliopsida" family="Phyllanthaceae" genus="Scepasma" kingdom="Plantae" order="Malpighiales" pageId="5" pageNumber="204" phylum="Tracheophyta" rank="genus">
<emphasis id="C3CD7900FFAEFFD09607FEA6FA4B5512" box="[1339,1451,303,329]" italics="true" pageId="5" pageNumber="204">Scepasma</emphasis>
(Blume 1826: 582) R.W.Bouman
</taxonomicName>
(in
<bibRefCitation id="9528D8E3FFAEFFD09110FEDAFCDB5537" author="Bouman, R. W. &amp; Kessler, P. J. A. &amp; Telford, I. R. H. &amp; Bruhl, J. J. &amp; Strijk, J. S. &amp; Saunders, R. M. K. &amp; Esser, H. - J. &amp; Falcon-Hidalgo, B. &amp; van Welzen, P. C." box="[556,827,338,365]" pageId="5" pageNumber="204" pagination="1 - 100" refId="ref4028" refString="Bouman, R. W., Kessler, P. J. A., Telford, I. R. H., Bruhl, J. J., Strijk, J. S., Saunders, R. M. K., Esser, H. - J., Falcon-Hidalgo, B. &amp; van Welzen, P. C. (2022) A revised phylogenetic classification of tribe Phyllantheae (Phyllanthaceae). Phytotaxa 540 (1): 1 - 100. https: // doi. org / 10.11646 / phytotaxa. 540.1.1" type="journal article" year="2022">
Bouman
<emphasis id="C3CD7900FFAEFFD091AFFEDAFD2C5537" box="[659,716,338,364]" italics="true" pageId="5" pageNumber="204">et al.</emphasis>
2022: 23
</bibRefCitation>
).
<taxonomicName id="36B9DE91FFAEFFD09073FEDBFB445537" box="[847,1188,338,364]" class="Magnoliopsida" family="Phyllanthaceae" genus="Nymphanthus" higherTaxonomySource="GBIF" kingdom="Plantae" order="Malpighiales" pageId="5" pageNumber="204" phylum="Tracheophyta" rank="species" species="namkadingensis">
<emphasis id="C3CD7900FFAEFFD09073FEDBFB445537" box="[847,1188,338,364]" italics="true" pageId="5" pageNumber="204">Nymphanthus namkadingensis</emphasis>
</taxonomicName>
is placed in the former because of its pedicellate staminate and pistillate flowers, 3-locular ovaries, and bifid stigmas (in contrast the section
<taxonomicName id="36B9DE91FFAEFFD093B4FE12FF1855EE" authorityName="R. W. Bouman" baseAuthorityName="Blume" baseAuthorityYear="1826" box="[136,248,411,437]" class="Magnoliopsida" family="Phyllanthaceae" genus="Scepasma" kingdom="Plantae" order="Malpighiales" pageId="5" pageNumber="204" phylum="Tracheophyta" rank="genus">
<emphasis id="C3CD7900FFAEFFD093B4FE12FF1855EE" box="[136,248,411,437]" italics="true" pageId="5" pageNumber="204">Scepasma</emphasis>
</taxonomicName>
shows sessile or subsessile flowers, [4–]5–8-locular ovaries, and usually entire stigmas). The phylogenetic position of the new species is yet to be clarified, and thus further molecular studies will be needed to implement the phylogenetic relationship within the genus and its evolutionary history.
</paragraph>
</subSubSection>
</treatment>
</document>
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