treatments-xml/data/4B/17/53/4B175324C941A507D1BAF9FCFAE8A909.xml

<document id="AB99509C2A31F6CE029ACCD09B7D1F23" ID-CLB-Dataset="302193" ID-DOI="10.11646/phytotaxa.659.3.1" ID-GBIF-Dataset="52524fe3-dfb8-4afc-829a-31089bb4e306" ID-ISSN="1179-3163" ID-Zenodo-Dep="13217894" IM.bibliography_approvedBy="valdenar" IM.illustrations_approvedBy="felipe" IM.materialsCitations_approvedBy="valdenar" IM.taxonomicNames_approvedBy="valdenar" IM.treatments_approvedBy="valdenar" checkinTime="1722613780751" checkinUser="felipe" docAuthor="Zhang, Liang, Lu, Ngan Thi, Zhou, Xin-Mao, Zhou, Zhuo, Thepkayson, Khamphanh, Luong, Thien Tam &amp; Zhang, Li-Bing" docDate="2024" docId="4B175324C941A507D1BAF9FCFAE8A909" docLanguage="en" docName="phytotaxa.659.3.1.pdf" docOrigin="Phytotaxa 659 (3)" docSource="http://dx.doi.org/10.11646/phytotaxa.659.3.1" docStyle="DocumentStyle:96748F8F1B6C902996E134952A3A36B9.13:Phytotaxa.2014-.journal_article" docStyleId="96748F8F1B6C902996E134952A3A36B9" docStyleName="Phytotaxa.2014-.journal_article" docStyleVersion="13" docTitle="Leptochilus wusugongii Liang Zhang &amp; Li Bing Zhang, sp. nov." docType="treatment" docVersion="5" lastPageNumber="233" masterDocId="B72E2B5CC953A513D132FFC2FFE5AB4D" masterDocTitle="Exploring the diversity of the Java fern genus Leptochilus (Polypodiaceae) in the Indo-Burma Biodiversity Hotspot" masterLastPageNumber="235" masterPageNumber="213" pageNumber="231" updateTime="1725399130512" updateUser="ExternalLinkService" zenodo-license-figures="UNSPECIFIED" zenodo-license-treatments="UNSPECIFIED">
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<mods:title id="D95F167572BD2CD33D40756F6634FBA3">Exploring the diversity of the Java fern genus Leptochilus (Polypodiaceae) in the Indo-Burma Biodiversity Hotspot</mods:title>
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<mods:namePart id="CF4FDF7FCF1AC961CEA3713F0C9D5BC9">Zhang, Liang</mods:namePart>
<mods:nameIdentifier id="CCB42874B0643FF68A70399C68C23B32" type="ORCID">0000-0003-3784-3135</mods:nameIdentifier>
<mods:affiliation id="5EAA3EE85459BB35AE765EBA28171621">Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan 650201, China</mods:affiliation>
<mods:nameIdentifier id="340FD2E81812C58C230C35AA72463FEA" type="email">zhangliang@mail.kib.ac.cn</mods:nameIdentifier>
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<mods:namePart id="DBAEC1B9D24A2E32797CF0DA9AAAEAB6">Lu, Ngan Thi</mods:namePart>
<mods:nameIdentifier id="13EC111AA26DA316FD7C8599B39EBDA8" type="ORCID">0000-0001-9823-2018</mods:nameIdentifier>
<mods:affiliation id="22282B456C6DF8F41474D8830169F467">Department of Biology, Vietnam National Museum of Nature, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Hanoi, Vietnam; Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Hanoi, Vietnam</mods:affiliation>
<mods:nameIdentifier id="9D4A8F14E50EBD13CD31E722E460804F" type="email">vnmngan@gmail.com</mods:nameIdentifier>
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<mods:namePart id="8897DE9A4522748B9A14F3076E4DA48C">Zhou, Xin-Mao</mods:namePart>
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<mods:affiliation id="6B3454D084E1EB41379D383E9461DBF4">School of Ecology and Environmental Science, Yunnan University, Kunming, Yunnan 650091, China</mods:affiliation>
<mods:nameIdentifier id="993FE2BC17B41ADD0B222117EC853B42" type="email">xinmao.zhou@ynu.edu.cn</mods:nameIdentifier>
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<mods:namePart id="C0230F4343F204A37C086FDCB43319AB">Zhou, Zhuo</mods:namePart>
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<mods:affiliation id="E31DFB8B9D47ABF9CC833EBBD2FE6C00">Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan 650201, China</mods:affiliation>
<mods:nameIdentifier id="06A6428750189BB4752DB3D723351768" type="email">zhouzhuo@mail.kib.ac.cn</mods:nameIdentifier>
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<mods:namePart id="B94AB6008D61F2F23C15D9020AA743EF">Thepkayson, Khamphanh</mods:namePart>
<mods:nameIdentifier id="3856A4B19FAEADFE782A9FC250C7816B" type="ORCID">0009-0001-1757-9907</mods:nameIdentifier>
<mods:affiliation id="7A1534676369CD4A543162E8F671A147">Institute of Traditional Medicine, Vientiane, Lao PDR</mods:affiliation>
<mods:nameIdentifier id="8E238E82154D06391F4A2D76967E39D2" type="email">khamphanh@hotmail.com</mods:nameIdentifier>
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<mods:namePart id="7B9C99B749CB9E3AD9D30A2935EDC014">Luong, Thien Tam</mods:namePart>
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<mods:affiliation id="4CEF487C69CE85675E6465A4404C1430">Department of Ecology - Evolutionary Biology, Vietnam National University Ho Chi Minh City (VNUHCM) - University of Science, 227 Nguyen Van Cu Street, District 5, Ho Chi Minh City, Vietnam</mods:affiliation>
<mods:nameIdentifier id="8718D01E9C16664CEE049A54B707E3F1" type="email">lttam1511@gmail.com</mods:nameIdentifier>
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<mods:namePart id="088A945317A14A1B13F9E744A453170B">Zhang, Li-Bing</mods:namePart>
<mods:nameIdentifier id="299E9666182C64A7711F3F4B4791A9B5" type="ORCID">0000-0002-4905-040X</mods:nameIdentifier>
<mods:affiliation id="E5F5C8623E693D12A01BD3DA34CC3E70">Missouri Botanical Garden, 4344 Shaw Blvd, St. Louis, Missouri, 63110 U. S. A.; Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, Sichuan, China</mods:affiliation>
<mods:nameIdentifier id="D5B88CDE9DBD8147DDEE6207BB4705A7" type="email">Libing.Zhang@mobot.org</mods:nameIdentifier>
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<mods:title id="1CE9BC2FB23E832EBEC7FC004F45EE8A">Phytotaxa</mods:title>
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<mods:date id="D2F22D4ACA599B898D8F93C4A71144FF">2024</mods:date>
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<treatment id="4B175324C941A507D1BAF9FCFAE8A909" ID-DOI="http://doi.org/10.5281/zenodo.13652274" ID-GBIF-Taxon="240245558" ID-Zenodo-Dep="13652274" LSID="urn:lsid:plazi:treatment:4B175324C941A507D1BAF9FCFAE8A909" httpUri="http://treatment.plazi.org/id/4B175324C941A507D1BAF9FCFAE8A909" lastPageId="20" lastPageNumber="233" pageId="18" pageNumber="231">
<subSubSection id="8BA4B1B9C941A501D1BAF9FCFC12AD15" box="[136,1015,1598,1625]" pageId="18" pageNumber="231" type="nomenclature">
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<heading id="9849555EC941A501D1BAF9FCFC12AD15" box="[136,1015,1598,1625]" fontSize="11" level="2" pageId="18" pageNumber="231" reason="4">
11. 
<taxonomicName id="04BE99B1C941A501D183F9FCFCC2AD15" authority="Liang Zhang &amp; Li Bing Zhang" authorityName="Liang Zhang &amp; Li Bing Zhang" box="[177,807,1598,1625]" class="Polypodiopsida" family="Polypodiaceae" genus="Leptochilus" kingdom="Plantae" order="Polypodiales" pageId="18" pageNumber="231" phylum="Tracheophyta" rank="species" species="wusugongii" status="sp. nov.">
<emphasis id="F1CA3E20C941A501D183F9FCFE20AD15" bold="true" box="[177,453,1598,1625]" italics="true" pageId="18" pageNumber="231">Leptochilus wusugongii</emphasis>
Liang Zhang &amp; Li Bing Zhang
</taxonomicName>
, 
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<taxonomicNameLabel id="EAF9835BC941A501D201F9FDFC6DAD15" box="[819,904,1599,1624]" pageId="18" pageNumber="231" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
(
<figureCitation id="5B85FEB7C941A501D2A4F9FCFC0FAD15" box="[918,1002,1598,1624]" captionStart="FIGURE 13" captionStartId="19.[136,229,1785,1807]" captionTargetBox="[195,1392,329,1748]" captionTargetId="figure-91@19.[183,1404,317,1760]" captionTargetPageId="19" captionText="FIGURE 13. Leptochilus wusugongii Liang Zhang &amp; Li Bing Zhang,—A. Habit.—B. Rhizome.—C. Rhizome scales.—D. Portion of abaxial lobe showing sori.—E. Portion of adaxial lobe. Photo credit: Liang Zhang." figureDoi="http://doi.org/10.5281/zenodo.13217920" httpUri="https://zenodo.org/record/13217920/files/figure.png" pageId="18" pageNumber="231">Fig. 13</figureCitation>
).
</heading>
</paragraph>
</subSubSection>
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<emphasis id="F1CA3E20C941A501D1BAF944FF26ADED" bold="true" box="[136,195,1670,1696]" pageId="18" pageNumber="231">Type</emphasis>
: 
<collectingCountry id="BBA9A2A2C941A501D1E7F944FEC7ADED" box="[213,290,1670,1696]" name="Laos" pageId="18" pageNumber="231">LAOS</collectingCountry>
. 
<collectingRegion id="017A2CD0C941A501D01DF945FDAAADED" box="[303,591,1670,1697]" country="Laos" name="Louangphabang" pageId="18" pageNumber="231">Luang Prabang Province</collectingRegion>
: 
<collectingRegion id="017A2CD0C941A501D36FF945FC89ADED" box="[605,876,1670,1697]" country="Laos" name="Louangphabang" pageId="18" pageNumber="231">Luang Prabang District</collectingRegion>
, state water supply protected area, outside 
<collectingRegion id="017A2CD0C941A501D456F945FF01AD89" country="Laos" name="Louangphabang" pageId="18" pageNumber="231">Luang Prabang</collectingRegion>
City, 
<quantity id="04464FD7C941A501D01BF968FE4EAD88" box="[297,427,1706,1733]" metricMagnitude="2" metricUnit="m" metricValue="6.0" metricValueMax="7.0" metricValueMin="5.0" pageId="18" pageNumber="231" unit="m" value="600.0" valueMax="700.0" valueMin="500.0">500–700 m</quantity>
, on limestone rock in primary forest, 
<date id="B700C4F2C941A501D26AF968FBFDAD89" box="[856,1048,1706,1732]" pageId="18" pageNumber="231" value="2011-10-31">31 October 2011</date>
, 
<emphasis id="F1CA3E20C941A501D516F969FD1EADA5" italics="true" pageId="18" pageNumber="231">Su-Gong Wu, Xun Gong, Bo Ding, Onevilay Souliya &amp; Khamphanh Thepkaysone WS-2591</emphasis>
(
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KUN-1229050!, 
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MO-6351014!).
</paragraph>
</subSubSection>
<subSubSection id="8BA4B1B9C941A500D18FF930FC68AA69" lastPageId="19" lastPageNumber="232" pageId="18" pageNumber="231" type="diagnosis">
<paragraph id="C301E232C941A501D18FF930FF2AAC7D" blockId="18.[136,1452,1670,2093]" pageId="18" pageNumber="231">
<emphasis id="F1CA3E20C941A501D18FF930FED5AC41" bold="true" box="[189,304,1778,1804]" pageId="18" pageNumber="231">Diagnosis</emphasis>
: 
<taxonomicName id="04BE99B1C941A501D070F930FDB5AC41" box="[322,592,1778,1804]" class="Polypodiopsida" family="Polypodiaceae" genus="Leptochilus" kingdom="Plantae" order="Polypodiales" pageId="18" pageNumber="231" phylum="Tracheophyta" rank="species" species="wusugongii">
<emphasis id="F1CA3E20C941A501D070F930FDB5AC41" box="[322,592,1778,1804]" italics="true" pageId="18" pageNumber="231">Leptochilus wusugongii</emphasis>
</taxonomicName>
is characterized by lamina thickly chartaceous, lobes large, 
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in width.
</paragraph>
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<emphasis id="F1CA3E20C941A501D18FF8F8FEEDAC19" bold="true" box="[189,264,1850,1876]" pageId="18" pageNumber="231">Plants</emphasis>
perennial, evergreen. 
<emphasis id="F1CA3E20C941A501D337F8F8FD8AAC19" bold="true" box="[517,623,1850,1876]" pageId="18" pageNumber="231">Rhizome</emphasis>
creeping, ca. 
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in diam., dorsiventrally flattened, scaly; scales appressed, slightly spreading at rhizome apex, membranous, margins entire, brown, (1.6–)2.1–3.5 (–4.6) × (0.4–) 
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. 
<emphasis id="F1CA3E20C941A501D1DEF840FEA4ACD1" bold="true" box="[236,321,1922,1948]" pageId="18" pageNumber="231">Fronds</emphasis>
monomorphic, (43–) 
<quantity id="04464FD7C941A501D31FF840FD49ACD0" box="[557,684,1922,1949]" metricMagnitude="-1" metricUnit="m" metricValue="9.5" metricValueMax="12.0" metricValueMin="7.0" pageId="18" pageNumber="231" unit="cm" value="95.0" valueMax="120.0" valueMin="70.0">70–120 cm</quantity>
long, petiole slightly longer than lamina; 
<emphasis id="F1CA3E20C941A501D5B0F840FB39ACD1" bold="true" box="[1154,1244,1922,1948]" pageId="18" pageNumber="231">petioles</emphasis>
stramineous, (26–) 
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long, ca. 
<quantity id="04464FD7C941A501D046F864FE19AC8C" box="[372,508,1958,1985]" metricMagnitude="-3" metricUnit="m" metricValue="3.3" metricValueMax="4.1" metricValueMin="2.5" pageId="18" pageNumber="231" unit="mm" value="3.3" valueMax="4.1" valueMin="2.5">2.5–4.1 mm</quantity>
in diam. at middle, wingless; 
<emphasis id="F1CA3E20C941A501D264F864FC53AC8D" bold="true" box="[854,950,1958,1984]" pageId="18" pageNumber="231">rachises</emphasis>
wingless, and only slightly winged at distal rachis and the connecting part between rachis and lobe. 
<emphasis id="F1CA3E20C941A501D23CF808FC9DACA9" bold="true" box="[782,888,1994,2020]" pageId="18" pageNumber="231">Laminae</emphasis>
broad elliptic, deeply 1-pinnatifid, (15–)33–55 × 
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, widest at middle or below middle of laminae, thickly chartaceous, brown when dry, glabrous, margins of lobes entire, slightly repand. 
<emphasis id="F1CA3E20C941A501D0C0F7D0FDDFA361" bold="true" box="[498,570,2066,2092]" pageId="18" pageNumber="231">Lobes</emphasis>
2–6 pairs, lanceolate, apex acuminate, 14–18 × 
<quantity id="04464FD7C941A501D552F7D0FB07A360" box="[1120,1250,2066,2093]" metricMagnitude="-2" metricUnit="m" metricValue="4.2" metricValueMax="4.9" metricValueMin="3.5" pageId="18" pageNumber="231" unit="cm" value="4.2" valueMax="4.9" valueMin="3.5">3.5–4.9 cm</quantity>
, basal portions of lobes narrowed, ascending upward, midribs of lobes at angles of 39–79 degree with rachis, distal pair of lobes slightly narrowed, alternate or nearly opposite, lobe base ca. 
<quantity id="04464FD7C940A500D3DFFF00FC88AB90" box="[749,877,194,221]" metricMagnitude="-2" metricUnit="m" metricValue="3.95" metricValueMax="4.2" metricValueMin="3.7" pageId="19" pageNumber="232" unit="cm" value="3.95" valueMax="4.2" valueMin="3.7">3.7–4.2 cm</quantity>
distant with each other. Midribs distinctly raised, veins slightly visible. 
<emphasis id="F1CA3E20C940A500D04FFF24FE4AAA4D" bold="true" box="[381,431,230,256]" pageId="19" pageNumber="232">Sori</emphasis>
linear, 18–25 on each side of midrib, centers ca. 
<quantity id="04464FD7C940A500D2E0FF24FBCAAA4C" box="[978,1071,230,257]" metricMagnitude="-3" metricUnit="m" metricValue="6.0" metricValueMax="7.0" metricValueMin="5.0" pageId="19" pageNumber="232" unit="mm" value="6.0" valueMax="7.0" valueMin="5.0">5–7 mm</quantity>
apart from one another, 1.7–2.2 × 
<quantity id="04464FD7C940A500D1BAFEC8FEF7AA68" box="[136,274,266,293]" metricMagnitude="-4" metricUnit="m" metricValue="6.5" metricValueMax="8.0" metricValueMin="5.0" pageId="19" pageNumber="232" unit="mm" value="0.65" valueMax="0.8" valueMin="0.5">0.5–0.8 mm</quantity>
. close to midrib, ca. 
<quantity id="04464FD7C940A500D0CBFEC8FDB3AA68" box="[505,598,266,293]" metricMagnitude="-3" metricUnit="m" metricValue="5.0" metricValueMax="7.0" metricValueMin="3.0" pageId="19" pageNumber="232" unit="mm" value="5.0" valueMax="7.0" valueMin="3.0">3–7 mm</quantity>
distant to the lobe margins.
</paragraph>
</subSubSection>
<caption id="97C1B2BAC940A500D1BAF93BFC47AC7E" ID-DOI="http://doi.org/10.5281/zenodo.13217920" ID-Zenodo-Dep="13217920" httpUri="https://zenodo.org/record/13217920/files/figure.png" pageId="19" pageNumber="232" startId="19.[136,229,1785,1807]" targetBox="[195,1392,329,1748]" targetPageId="19" targetType="figure">
<paragraph id="C301E232C940A500D1BAF93BFC47AC7E" blockId="19.[136,1451,1785,1843]" pageId="19" pageNumber="232">
<emphasis id="F1CA3E20C940A500D1BAF93BFEE0AC43" bold="true" box="[136,261,1785,1807]" pageId="19" pageNumber="232">FIGURE 13</emphasis>
. 
<taxonomicName id="04BE99B1C940A500D021F93BFCD1AC42" authority="Liang Zhang &amp; Li Bing Zhang" authorityName="Liang Zhang &amp; Li Bing Zhang" box="[275,820,1785,1807]" class="Polypodiopsida" family="Polypodiaceae" genus="Leptochilus" kingdom="Plantae" order="Polypodiales" pageId="19" pageNumber="232" phylum="Tracheophyta" rank="species" species="wusugongii">
<emphasis id="F1CA3E20C940A500D021F93BFE1FAC42" box="[275,506,1785,1807]" italics="true" pageId="19" pageNumber="232">Leptochilus wusugongii</emphasis>
Liang Zhang &amp; Li Bing Zhang
</taxonomicName>
,—A. Habit.—B. Rhizome.—C. Rhizome scales.—D. Portion of abaxial lobe showing sori.—E. Portion of adaxial lobe. Photo credit: Liang Zhang.
</paragraph>
</caption>
<subSubSection id="8BA4B1B9C940A500D18FF8A3FD23A341" pageId="19" pageNumber="232" type="materials_examined">
<paragraph id="C301E232C940A500D18FF8A3FD23A341" blockId="19.[136,1452,1889,2060]" pageId="19" pageNumber="232">
<emphasis id="F1CA3E20C940A500D18FF8A3FDDFAC36" bold="true" box="[189,570,1889,1915]" pageId="19" pageNumber="232">Additional specimens examined</emphasis>
: 
<collectingCountry id="BBA9A2A2C940A500D37BF8A0FD73AC31" box="[585,662,1890,1916]" name="Laos" pageId="19" pageNumber="232">LAOS</collectingCountry>
. 
<collectingRegion id="017A2CD0C940A500D390F8A0FC58AC36" box="[674,957,1889,1916]" country="Laos" name="Louangphabang" pageId="19" pageNumber="232">Luang Prabang Province</collectingRegion>
: 
<collectingRegion id="017A2CD0C940A500D2FAF8A0FB36AC36" box="[968,1235,1889,1916]" country="Laos" name="Louangphabang" pageId="19" pageNumber="232">Luang Prabang District</collectingRegion>
, state water supply protected area, outside 
<collectingRegion id="017A2CD0C940A500D0A9F844FDAEACD2" box="[411,587,1925,1952]" country="Laos" name="Louangphabang" pageId="19" pageNumber="232">Luang Prabang</collectingRegion>
City, 
<quantity id="04464FD7C940A500D3AAF847FD03ACED" box="[664,742,1925,1952]" metricMagnitude="2" metricUnit="m" metricValue="6.1" pageId="19" pageNumber="232" unit="m" value="610.0">610 m</quantity>
, 
<geoCoordinate id="A68A84F5C940A500D3C5F847FCB1ACED" box="[759,852,1925,1952]" degrees="19.83" direction="north" orientation="latitude" pageId="19" pageNumber="232" precision="555" value="19.83">19.83°N</geoCoordinate>
/ 
<geoCoordinate id="A68A84F5C940A500D26FF847FC23ACED" box="[861,966,1925,1952]" degrees="102.15" direction="east" orientation="longitude" pageId="19" pageNumber="232" precision="555" value="102.15">102.15°E</geoCoordinate>
, on limestone rock, 
<date id="B700C4F2C940A500D58DF844FA87ACED" box="[1215,1378,1926,1952]" pageId="19" pageNumber="232" value="2019-05-13">13 May 2019</date>
, 
<emphasis id="F1CA3E20C940A500D440F847FE2BAC89" italics="true" pageId="19" pageNumber="232">Zhuo Zhou &amp; Liang Zhang LZ403</emphasis>
(KUN!). 
<collectingRegion id="017A2CD0C940A500D373F86BFCF8AC8E" box="[577,797,1961,1987]" country="Laos" name="Viangchan" pageId="19" pageNumber="232">Vientiane Province</collectingRegion>
: 
<collectingRegion id="017A2CD0C940A500D21BF868FBEAAC8E" box="[809,1039,1961,1988]" inferredBySuffix="true" pageId="19" pageNumber="232">Vang Vieng District</collectingRegion>
, Phou Houat Pha Tang Village, 
<quantity id="04464FD7C940A500D4B3F86BFF45ACA5" metricMagnitude="2" metricUnit="m" metricValue="6.0" pageId="19" pageNumber="232" unit="m" value="600.0">600 m</quantity>
, 
<geoCoordinate id="A68A84F5C940A500D19CF80CFEE9ACA5" box="[174,268,1998,2024]" degrees="19.07" direction="north" orientation="latitude" pageId="19" pageNumber="232" precision="555" value="19.07">19.07°N</geoCoordinate>
/ 
<geoCoordinate id="A68A84F5C940A500D027F80CFE98ACA5" box="[277,381,1998,2024]" degrees="102.41" direction="east" orientation="longitude" pageId="19" pageNumber="232" precision="555" value="102.41">102.41°E</geoCoordinate>
, in primary forest, 
<date id="B700C4F2C940A500D36FF80FFCD9ACA5" box="[605,828,1997,2024]" pageId="19" pageNumber="232" value="2007-11-15">15 November 2007</date>
, 
<emphasis id="F1CA3E20C940A500D27BF80CFDBAA341" italics="true" pageId="19" pageNumber="232">Su-Gong Wu, Jian-Ying Xiang, En-De Liu, Somsanith Bouamanivong, Onevilay Souliya WS-424</emphasis>
(KUN!).
</paragraph>
</subSubSection>
<subSubSection id="8BA4B1B9C947A507D18FFF5FFBC7AA4D" pageId="20" pageNumber="233" type="distribution">
<paragraph id="C301E232C947A507D18FFF5FFBC7AA4D" blockId="20.[136,1452,157,580]" pageId="20" pageNumber="233">
<emphasis id="F1CA3E20C947A507D18FFF5FFE0FABFA" bold="true" box="[189,490,157,184]" pageId="20" pageNumber="233">Distribution and habitat:</emphasis>
<taxonomicName id="04BE99B1C947A507D0C3FF5CFD1EABF5" box="[497,763,158,184]" class="Polypodiopsida" family="Polypodiaceae" genus="Leptochilus" kingdom="Plantae" order="Polypodiales" pageId="20" pageNumber="233" phylum="Tracheophyta" rank="species" species="wusugongii">
<emphasis id="F1CA3E20C947A507D0C3FF5CFD1EABF5" box="[497,763,158,184]" italics="true" pageId="20" pageNumber="233">Leptochilus wusugongii</emphasis>
</taxonomicName>
was discovered in two provinces in northern 
<collectingCountry id="BBA9A2A2C947A507D5CBFF5CFAD6ABF5" box="[1273,1331,158,184]" name="Laos" pageId="20" pageNumber="233">Laos</collectingCountry>
. There is a possibility that this species is distributed in neighboring areas, such as northern 
<collectingCountry id="BBA9A2A2C947A507D531FF00FB87AB91" box="[1027,1122,194,220]" name="Vietnam" pageId="20" pageNumber="233">Vietnam</collectingCountry>
and southern 
<collectingRegion id="017A2CD0C947A507D5CCFF00FAB2AB91" box="[1278,1367,194,220]" country="China" name="Yunnan" pageId="20" pageNumber="233">Yunnan</collectingRegion>
, 
<collectingCountry id="BBA9A2A2C947A507D453FF00FA4DAB91" box="[1377,1448,194,220]" name="China" pageId="20" pageNumber="233">China</collectingCountry>
. This species was exclusively observed thriving on limestone in the primary forest.
</paragraph>
</subSubSection>
<subSubSection id="8BA4B1B9C947A507D18FFEC8FAE8A909" pageId="20" pageNumber="233" type="etymology">
<paragraph id="C301E232C947A507D18FFEC8FB6AAA21" blockId="20.[136,1452,157,580]" pageId="20" pageNumber="233">
<emphasis id="F1CA3E20C947A507D18FFEC8FEDBAA69" bold="true" box="[189,318,266,292]" pageId="20" pageNumber="233">Etymology</emphasis>
: 
<taxonomicName id="04BE99B1C947A507D07EFEC8FDB3AA69" box="[332,598,266,292]" class="Polypodiopsida" family="Polypodiaceae" genus="Leptochilus" kingdom="Plantae" order="Polypodiales" pageId="20" pageNumber="233" phylum="Tracheophyta" rank="species" species="wusugongii">
<emphasis id="F1CA3E20C947A507D07EFEC8FDB3AA69" box="[332,598,266,292]" italics="true" pageId="20" pageNumber="233">Leptochilus wusugongii</emphasis>
</taxonomicName>
is named in honor of Professor Su-Gong Wu, distinguished pteridologist and one of the collectors of the new species. Professor Wu diligently collected a significant number of fern specimens in Southeast Asia, contributing greatly to our understanding of the fern diversity in this region.
</paragraph>
<paragraph id="C301E232C947A507D18FFEB4FAE8A909" blockId="20.[136,1452,157,580]" pageId="20" pageNumber="233">
<emphasis id="F1CA3E20C947A507D18FFEB4FF10AADD" bold="true" box="[189,245,374,400]" pageId="20" pageNumber="233">Note</emphasis>
: 
<taxonomicName id="04BE99B1C947A507D037FEB4FDF5AADD" box="[261,528,374,400]" class="Polypodiopsida" family="Polypodiaceae" genus="Leptochilus" kingdom="Plantae" order="Polypodiales" pageId="20" pageNumber="233" phylum="Tracheophyta" rank="species" species="wusugongii">
<emphasis id="F1CA3E20C947A507D037FEB4FDF5AADD" box="[261,528,374,400]" italics="true" pageId="20" pageNumber="233">Leptochilus wusugongii</emphasis>
</taxonomicName>
is morphologically most similar to 
<taxonomicName id="04BE99B1C947A507D297FEB5FB88AADD" box="[933,1133,375,400]" class="Polypodiopsida" family="Polypodiaceae" genus="Leptochilus" kingdom="Plantae" order="Polypodiales" pageId="20" pageNumber="233" phylum="Tracheophyta" rank="species" species="sinovietnamica">
<emphasis id="F1CA3E20C947A507D297FEB5FB88AADD" box="[933,1133,375,400]" italics="true" pageId="20" pageNumber="233">L. sinovietnamica</emphasis>
</taxonomicName>
in having large habit, broad lobes, and typically 3–4 pairs of lobes. However, it differs from 
<taxonomicName id="04BE99B1C947A507D249FE59FBA3AAF9" box="[891,1094,411,436]" class="Polypodiopsida" family="Polypodiaceae" genus="Leptochilus" kingdom="Plantae" order="Polypodiales" pageId="20" pageNumber="233" phylum="Tracheophyta" rank="species" species="sinovietnamica">
<emphasis id="F1CA3E20C947A507D249FE59FBA3AAF9" box="[891,1094,411,436]" italics="true" pageId="20" pageNumber="233">L. sinovietnamica</emphasis>
</taxonomicName>
by having a thicker texture of laminae. To better define the morphological boundaries between these two species, additional field observations and specimen examinations are necessary. Our phylogenetical study resolved 
<taxonomicName id="04BE99B1C947A507D28EFE21FBBEAAB1" box="[956,1115,483,508]" class="Polypodiopsida" family="Polypodiaceae" genus="Leptochilus" kingdom="Plantae" order="Polypodiales" pageId="20" pageNumber="233" phylum="Tracheophyta" rank="species" species="wusugongii">
<emphasis id="F1CA3E20C947A507D28EFE21FBBEAAB1" box="[956,1115,483,508]" italics="true" pageId="20" pageNumber="233">L. wusugongii</emphasis>
</taxonomicName>
as sister to 
<taxonomicName id="04BE99B1C947A507D5ECFE21FA40AAB1" box="[1246,1445,483,508]" class="Polypodiopsida" family="Polypodiaceae" genus="Leptochilus" kingdom="Plantae" order="Polypodiales" pageId="20" pageNumber="233" phylum="Tracheophyta" rank="species" species="sinovietnamica">
<emphasis id="F1CA3E20C947A507D5ECFE21FA40AAB1" box="[1246,1445,483,508]" italics="true" pageId="20" pageNumber="233">L. sinovietnamica</emphasis>
</taxonomicName>
, displaying distinct genetic divergence (
<figureCitation id="5B85FEB7C947A507D37EFDC4FD75A96D" box="[588,656,518,544]" captionStart="FIGURE 1" captionStartId="3.[136,229,1956,1978]" captionTargetBox="[153,1430,353,1922]" captionTargetId="figure-76@3.[151,1435,347,1928]" captionTargetPageId="3" captionText="FIGURE 1. Phylogeny of Leptochilus based on six plastid markers (modified from Zhang et al. 2024). Orange color indicates the new species described here." figureDoi="http://doi.org/10.5281/zenodo.13217896" httpUri="https://zenodo.org/record/13217896/files/figure.png" pageId="20" pageNumber="233">Fig. 1</figureCitation>
). This discovery adds a new species to the 
<collectingCountry id="BBA9A2A2C947A507D5A6FDC4FB16A96D" box="[1172,1267,518,544]" name="Vietnam" pageId="20" pageNumber="233">Vietnam</collectingCountry>
clade, which is recognized as one of the earliest-diverging clades within 
<taxonomicName id="04BE99B1C947A507D235FDE8FC6FA909" authorityName="Kaulfuss" authorityYear="1824" box="[775,906,554,580]" class="Polypodiopsida" family="Polypodiaceae" genus="Leptochilus" kingdom="Plantae" order="Polypodiales" pageId="20" pageNumber="233" phylum="Tracheophyta" rank="genus">
<emphasis id="F1CA3E20C947A507D235FDE8FC6FA909" box="[775,906,554,580]" italics="true" pageId="20" pageNumber="233">Leptochilus</emphasis>
</taxonomicName>
, as defined in 
<bibRefCitation id="A72F9FC3C947A507D51FFDE8FAECA909" author="Zhang, L. &amp; Lu, N. T. &amp; Zhou, X. - M. &amp; Chen, D. - K. &amp; Knapp, R. &amp; Zhou, L. &amp; Guo, L. &amp; Luong, T. T. &amp; Sun, H. &amp; Gao, X. - F. &amp; Zhang, L. - B." box="[1069,1289,554,580]" pageId="20" pageNumber="233" pagination="311 - 322" refId="ref12520" refString="Zhang, L., Lu, N. T., Zhou, X. - M., Chen, D. - K., Knapp, R., Zhou, L., Guo, L., Luong, T. T., Sun, H., Gao, X. - F. &amp; Zhang, L. - B. (2019) A plastid phylogeny of the Old World fern genus Leptochilus (Polypodiaceae): Implications for cryptic speciation and progressive colonization from lower to higher latitudes. Molecular Phylogenetics and Evolution 134: 311 - 322. https: // doi. org / 10.1016 / j. ympev. 2019.01.013" type="journal article" year="2019">
Zhang 
<emphasis id="F1CA3E20C947A507D54EFDE9FB51A909" box="[1148,1204,554,580]" italics="true" pageId="20" pageNumber="233">et al.</emphasis>
(2019)
</bibRefCitation>
.
</paragraph>
</subSubSection>
</treatment>
</document>