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<document id="8C9BBFE0592442B1B138001552B5495F" ID-DOI="10.11646/phytotaxa.642.1.3" ID-ISSN="1179-3163" ID-Zenodo-Dep="13214145" IM.bibliography_approvedBy="felipe" IM.illustrations_approvedBy="guilherme" IM.materialsCitations_approvedBy="guilherme" IM.tables_requiresApprovalFor="GgImagineBatch" IM.taxonomicNames_approvedBy="guilherme" IM.treatments_approvedBy="guilherme" checkinTime="1722601791791" checkinUser="felipe" docAuthor="Liu, Chenlai, Yu, Xiaolei, Song, Xiaoli, Shao, Jingjing, Chen, Yuchu &amp; Liu, Xing" docDate="2024" docId="038987CAC0537F7EFF44F89FFD957C47" docLanguage="en" docName="phytotaxa.642.1.3.pdf" docOrigin="Phytotaxa 642 (1)" docSource="http://dx.doi.org/10.11646/phytotaxa.642.1.3" docStyle="DocumentStyle:96748F8F1B6C902996E134952A3A36B9.13:Phytotaxa.2014-.journal_article" docStyleId="96748F8F1B6C902996E134952A3A36B9" docStyleName="Phytotaxa.2014-.journal_article" docStyleVersion="13" docTitle="Isoetes yuhangensis X. Liu &amp; Y. C. Chen, sp. nov." docType="treatment" docVersion="3" lastPageNumber="43" masterDocId="FFB0FFB2C0567F78FFCCFFCCFF83746C" masterDocTitle="Two new diploid species of Isoetes (Isoetaceae: Lycopodiopsida) from Southeastern China based on morphological and molecular evidence" masterLastPageNumber="49" masterPageNumber="37" pageNumber="42" updateTime="1725537017063" updateUser="guilherme" zenodo-license-figures="UNSPECIFIED" zenodo-license-treatments="UNSPECIFIED">
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<mods:title id="050A0BCF3525DB074F530A7A4C684419">Two new diploid species of Isoetes (Isoetaceae: Lycopodiopsida) from Southeastern China based on morphological and molecular evidence</mods:title>
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<mods:namePart id="09FE5F3F0DFC864D0664291FA2909CC3">Liu, Chenlai</mods:namePart>
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<mods:affiliation id="A93E7EA6D0AE95CD35C54FC91922725A">State Key Laboratory of Hybrid Rice, Laboratory of Plant Systematics and Evolutionary Biology, College of Life Sciences, Wuhan University, Wuhan 430072, P. R. China</mods:affiliation>
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<mods:namePart id="33DBE9E5F933CD5AD05A6E7572895875">Yu, Xiaolei</mods:namePart>
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<mods:affiliation id="5E7C3E503B5F05D781222C2CCD0D436C">State Key Laboratory of Hybrid Rice, Laboratory of Plant Systematics and Evolutionary Biology, College of Life Sciences, Wuhan University, Wuhan 430072, P. R. China</mods:affiliation>
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<mods:namePart id="E4688628946655BFB233A736DEA77134">Song, Xiaoli</mods:namePart>
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<mods:affiliation id="855A1F1BCDAAC161EC97699D9CB0CC3E">State Key Laboratory of Hybrid Rice, Laboratory of Plant Systematics and Evolutionary Biology, College of Life Sciences, Wuhan University, Wuhan 430072, P. R. China</mods:affiliation>
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<mods:namePart id="B5CB8BDB002D790A66A2E60C2F3CA619">Shao, Jingjing</mods:namePart>
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<mods:affiliation id="06A77DC53492E5B0D6CFEF6B28BC9C82">State Key Laboratory of Hybrid Rice, Laboratory of Plant Systematics and Evolutionary Biology, College of Life Sciences, Wuhan University, Wuhan 430072, P. R. China</mods:affiliation>
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<mods:namePart id="F2F0E2DE4644F4EA1CF2A72B09B93C5E">Chen, Yuchu</mods:namePart>
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<mods:affiliation id="51C96D9F591B11B94B4F737B8CE2B1C9">Hangzhou Tianjing Aquatic Botanical Garden, Hangzhou 310000, P. R. China</mods:affiliation>
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<mods:namePart id="357A33B841551455822F7D333BE1D12F">Liu, Xing</mods:namePart>
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<mods:affiliation id="A4FF49E6032C44FA44A902CADE026361">State Key Laboratory of Hybrid Rice, Laboratory of Plant Systematics and Evolutionary Biology, College of Life Sciences, Wuhan University, Wuhan 430072, P. R. China</mods:affiliation>
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<mods:title id="6FA16E5E2BD6C249B2152C6F1A9114DC">Phytotaxa</mods:title>
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<mods:date id="A683B7E73A16A3D187B68A3598D29CAA">2024</mods:date>
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<mods:number id="A73D57370D90E13056843DCF485AD160">642</mods:number>
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<mods:identifier id="C312DBDB87E2D0C26B890165F4DC495C" type="DOI">10.11646/phytotaxa.642.1.3</mods:identifier>
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<treatment id="038987CAC0537F7EFF44F89FFD957C47" ID-DOI="http://doi.org/10.5281/zenodo.13213310" ID-Zenodo-Dep="13213310" LSID="urn:lsid:plazi:treatment:038987CAC0537F7EFF44F89FFD957C47" httpUri="http://treatment.plazi.org/id/038987CAC0537F7EFF44F89FFD957C47" lastPageId="6" lastPageNumber="43" pageId="5" pageNumber="42">
<subSubSection id="C33A6557C0537F7DFF44F89FFCB17301" box="[136,818,1874,1901]" pageId="5" pageNumber="42" type="nomenclature">
<paragraph id="8B9F36DCC0537F7DFF44F89FFCB17301" blockId="5.[136,818,1874,1901]" box="[136,818,1874,1901]" pageId="5" pageNumber="42">
<heading id="D0D781B0C0537F7DFF44F89FFCB17301" box="[136,818,1874,1901]" fontSize="11" level="2" pageId="5" pageNumber="42" reason="3">
<taxonomicName id="4C204D5FC0537F7DFF44F89FFDDB7301" ID-CoL="CDF5S" authority="X. Liu &amp; Y.C. Chen" authorityName="X. Liu &amp; Y. C. Chen" box="[136,600,1874,1901]" class="Lycopodiopsida" family="Isoetaceae" genus="Isoetes" kingdom="Plantae" order="Isoetales" pageId="5" pageNumber="42" phylum="Tracheophyta" rank="species" species="yuhangensis" status="sp. nov.">
<emphasis id="B954EACEC0537F7DFF44F89FFEEC7301" bold="true" box="[136,367,1874,1901]" italics="true" pageId="5" pageNumber="42">Isoetes yuhangensis</emphasis>
X. Liu &amp; Y.C. Chen
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,
<emphasis id="B954EACEC0537F7DFDAFF89FFD397301" bold="true" box="[611,698,1875,1901]" italics="true" pageId="5" pageNumber="42">
<taxonomicNameLabel id="A26757B5C0537F7DFDAFF89FFD397301" box="[611,698,1875,1901]" pageId="5" pageNumber="42" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
(
<figureCitation id="131B2A59C0537F7DFD05F89FFCA97301" box="[713,810,1875,1901]" captionStart="FIGURE 2" captionStartId="6.[136,229,1398,1420]" captionTargetBox="[154,1432,193,1375]" captionTargetId="figure-26@6.[151,1435,190,1375]" captionTargetPageId="6" captionText="FIGURE 2. Isoetes yuhangensis X. Liu &amp; Y.C. Chen. A. Proximal view of megaspore. B. Distal view of megaspore. C. Equatorial view of megaspore of. D. Proximal view of microspore of. E. Distal view of microspore. F. Mitotic chromosomes of root tip cells. G. Megasporangium. H. Microsporangium. I. Habitat. Scale bars:A–C = 100 μm; D–E = 5 μm; F = 20 μm; G–H = 2 mm." figureDoi="http://doi.org/10.5281/zenodo.13214149" httpUri="https://zenodo.org/record/13214149/files/figure.png" pageId="5" pageNumber="42">Figure 2</figureCitation>
)
</heading>
</paragraph>
</subSubSection>
<subSubSection id="C33A6557C0537F7DFF44F8B6FC187C4C" pageId="5" pageNumber="42" type="diagnosis">
<paragraph id="8B9F36DCC0537F7DFF44F8B6FDFF73B5" blockId="5.[136,1452,1914,2081]" pageId="5" pageNumber="42">
<emphasis id="B954EACEC0537F7DFF44F8B6FF7073FC" bold="true" box="[136,243,1914,1936]" pageId="5" pageNumber="42">Diagnosis:</emphasis>
—
<taxonomicName id="4C204D5FC0537F7DFEC7F8B7FE4B73FC" box="[267,456,1915,1936]" class="Lycopodiopsida" family="Isoetaceae" genus="Isoetes" kingdom="Plantae" order="Isoetales" pageId="5" pageNumber="42" phylum="Tracheophyta" rank="species" species="yuhangensis">
<emphasis id="B954EACEC0537F7DFEC7F8B7FE4B73FC" box="[267,456,1915,1936]" italics="true" pageId="5" pageNumber="42">Isoetes yuhangensis</emphasis>
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differs from
<taxonomicName id="4C204D5FC0537F7DFDF3F8B7FD4273FC" box="[575,705,1915,1936]" class="Lycopodiopsida" family="Isoetaceae" genus="Isoetes" kingdom="Plantae" order="Isoetales" pageId="5" pageNumber="42" phylum="Tracheophyta" rank="species" species="taiwanensis">
<emphasis id="B954EACEC0537F7DFDF3F8B7FD4273FC" box="[575,705,1915,1936]" italics="true" pageId="5" pageNumber="42">I.taiwanensis</emphasis>
</taxonomicName>
by its rugulate megaspores with fibrous perispores (vs tuberculate megaspores), velum absent (vs velum rudimentary), semicircular labium (vs reniform labium), and the megaspore muri connected on the distal surface (vs megaspore muri rarely connected).
</paragraph>
<paragraph id="8B9F36DCC0537F7DFF44F82BFC187C4C" blockId="5.[136,1452,1914,2081]" pageId="5" pageNumber="42">
<materialsCitation id="3B483C81C0537F7DFF44F82BFC147C4C" collectingDate="2021-09-27" collectionCode="WH" collectorName="X. Liu" country="China" county="Type" elevation="81" latitude="30.447777" location="Yuhang District" longitude="119.83945" municipality="Hangzhou City" pageId="5" pageNumber="42" specimenCode="WH2021092702" specimenCount="1" stateProvince="Zhejiang" typeStatus="holotype">
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:—
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.
<collectingRegion id="49E4F83EC0537F7DFEFFF82BFE687391" box="[307,491,2023,2045]" country="China" name="Zhejiang" pageId="5" pageNumber="42">Zhejiang Province</collectingRegion>
,
<collectingMunicipality id="6BFBACA6C0537F7DFE35F82BFD127391" box="[505,657,2023,2045]" pageId="5" pageNumber="42">Hangzhou City</collectingMunicipality>
,
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,
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,
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,
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elevation
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,
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;
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,
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,
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<collectorName id="26D5530AC0537F7DFDDDF7C7FDC87C4C" box="[529,587,2059,2080]" pageId="5" pageNumber="42">X. Liu</collectorName>
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,
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</emphasis>
(
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!)
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.
</paragraph>
</subSubSection>
<caption id="DF5F6654C0507F7EFF44FABAFB7D71BF" ID-DOI="http://doi.org/10.5281/zenodo.13214149" ID-Zenodo-Dep="13214149" httpUri="https://zenodo.org/record/13214149/files/figure.png" pageId="6" pageNumber="43" startId="6.[136,229,1398,1420]" targetBox="[154,1432,193,1375]" targetPageId="6" targetType="figure">
<paragraph id="8B9F36DCC0507F7EFF44FABAFB7D71BF" blockId="6.[136,1452,1398,1492]" pageId="6" pageNumber="43">
<emphasis id="B954EACEC0507F7EFF44FABAFE8271E7" bold="true" box="[136,257,1398,1420]" pageId="6" pageNumber="43">FIGURE 2.</emphasis>
<taxonomicName id="4C204D5FC0507F7EFEC5FABBFCA571E1" authority="X. Liu &amp; Y. C. Chen. A. Proximal" box="[265,806,1399,1421]" class="Lycopodiopsida" family="Isoetaceae" genus="Isoetes" kingdom="Plantae" order="Isoetales" pageId="6" pageNumber="43" phylum="Tracheophyta" rank="species" species="yuhangensis">
<emphasis id="B954EACEC0507F7EFEC5FABBFE4F71E0" box="[265,460,1399,1420]" italics="true" pageId="6" pageNumber="43">Isoetes yuhangensis</emphasis>
X. Liu &amp; Y.C. Chen. A. Proximal
</taxonomicName>
view of megaspore. B. Distal view of megaspore. C. Equatorial view of megaspore of. D. Proximal view of microspore of. E. Distal view of microspore. F. Mitotic chromosomes of root tip cells. G. Megasporangium. H. Microsporangium. I. Habitat. Scale bars: A–C = 100 μm; D–E = 5 μm; F = 20 μm; G–H = 2 mm.
</paragraph>
</caption>
<subSubSection id="C33A6557C0507F7EFF44F9CDFA29737E" pageId="6" pageNumber="43" type="description">
<paragraph id="8B9F36DCC0507F7EFF44F9CDFA29737E" blockId="6.[136,1452,1537,2092]" pageId="6" pageNumber="43">
<emphasis id="B954EACEC0507F7EFF44F9CDFE9F7277" bold="true" box="[136,284,1537,1563]" pageId="6" pageNumber="43">Description:</emphasis>
—Plants aquatic, amphibious, growing among paddy field drainage ditch. Corm 3-lobed. Roots conspicuous, dichotomously branched. Leaves white basally, green above,
<quantity id="4CD89B39C0507F7EFC24F9E9FBF17253" box="[1000,1138,1573,1599]" metricMagnitude="-3" metricUnit="m" metricValue="1.7" metricValueMax="2.3" metricValueMin="1.1" pageId="6" pageNumber="43" unit="mm" value="1.7" valueMax="2.3" valueMin="1.1">1.1–2.3 mm</quantity>
wide at middle,
<quantity id="4CD89B39C0507F7EFAF5F9E9FA287253" box="[1337,1451,1573,1599]" metricMagnitude="-1" metricUnit="m" metricValue="2.2" metricValueMax="3.2" metricValueMin="1.2" pageId="6" pageNumber="43" unit="cm" value="22.0" valueMax="32.0" valueMin="12.0">12–32 cm</quantity>
long,
<quantity id="4CD89B39C0507F7EFF06F984FEE2720E" box="[202,353,1608,1635]" metricMagnitude="-3" metricUnit="m" metricValue="8.15" metricValueMax="10.6" metricValueMin="5.7" pageId="6" pageNumber="43" unit="mm" value="8.15" valueMax="10.6" valueMin="5.7">5.7–10.6 mm</quantity>
wide at the base, erect to ascending, apex acute to attenuate. Ligule triangular. Labium present, semicircular. Sporangium
<quantity id="4CD89B39C0507F7EFE63F9A7FDC772E9" box="[431,580,1643,1669]" metricMagnitude="-2" metricUnit="m" metricValue="1.04" metricValueMax="1.14" metricValueMin="0.94" pageId="6" pageNumber="43" unit="mm" value="10.4" valueMax="11.4" valueMin="9.4">9.4–11.4 mm</quantity>
long,
<quantity id="4CD89B39C0507F7EFD47F9A7FC9172E9" box="[651,786,1643,1670]" metricMagnitude="-3" metricUnit="m" metricValue="5.0" metricValueMax="5.8" metricValueMin="4.2" pageId="6" pageNumber="43" unit="mm" value="5.0" valueMax="5.8" valueMin="4.2">4.2–5.8 mm</quantity>
wide, basal, oblong, the surface of sporangium with white, and membranous. Velum absent (
<figureCitation id="131B2A59C0507F7EFE37F942FD4972C4" box="[507,714,1678,1704]" captionStart="FIGURE 2" captionStartId="6.[136,229,1398,1420]" captionTargetBox="[154,1432,193,1375]" captionTargetId="figure-26@6.[151,1435,190,1375]" captionTargetPageId="6" captionText="FIGURE 2. Isoetes yuhangensis X. Liu &amp; Y.C. Chen. A. Proximal view of megaspore. B. Distal view of megaspore. C. Equatorial view of megaspore of. D. Proximal view of microspore of. E. Distal view of microspore. F. Mitotic chromosomes of root tip cells. G. Megasporangium. H. Microsporangium. I. Habitat. Scale bars:A–C = 100 μm; D–E = 5 μm; F = 20 μm; G–H = 2 mm." figureDoi="http://doi.org/10.5281/zenodo.13214149" httpUri="https://zenodo.org/record/13214149/files/figure.png" pageId="6" pageNumber="43">Figure 2G and 2H</figureCitation>
). Megaspores, 270–324 µm in diameter (N = 30 +/- SD 14.0 µm); proximal surface rugulate; equatorial ridges thin and corrugate, radial ridges thick and smooth; distal surface rugulate and densely covered with fibrous perispores (
<figureCitation id="131B2A59C0507F7EFDB2F918FC957283" box="[638,790,1748,1775]" captionStart="FIGURE 2" captionStartId="6.[136,229,1398,1420]" captionTargetBox="[154,1432,193,1375]" captionTargetId="figure-26@6.[151,1435,190,1375]" captionTargetPageId="6" captionText="FIGURE 2. Isoetes yuhangensis X. Liu &amp; Y.C. Chen. A. Proximal view of megaspore. B. Distal view of megaspore. C. Equatorial view of megaspore of. D. Proximal view of microspore of. E. Distal view of microspore. F. Mitotic chromosomes of root tip cells. G. Megasporangium. H. Microsporangium. I. Habitat. Scale bars:A–C = 100 μm; D–E = 5 μm; F = 20 μm; G–H = 2 mm." figureDoi="http://doi.org/10.5281/zenodo.13214149" httpUri="https://zenodo.org/record/13214149/files/figure.png" pageId="6" pageNumber="43">Figure 2A–C</figureCitation>
). Microspores, 16–26 µm in length (N = 30 +/- SD 2.3 µm), monolete, proximal and distal surface sharp-tipped echinate (
<figureCitation id="131B2A59C0507F7EFCF8F934FB81737E" box="[820,1026,1784,1810]" captionStart="FIGURE 2" captionStartId="6.[136,229,1398,1420]" captionTargetBox="[154,1432,193,1375]" captionTargetId="figure-26@6.[151,1435,190,1375]" captionTargetPageId="6" captionText="FIGURE 2. Isoetes yuhangensis X. Liu &amp; Y.C. Chen. A. Proximal view of megaspore. B. Distal view of megaspore. C. Equatorial view of megaspore of. D. Proximal view of microspore of. E. Distal view of microspore. F. Mitotic chromosomes of root tip cells. G. Megasporangium. H. Microsporangium. I. Habitat. Scale bars:A–C = 100 μm; D–E = 5 μm; F = 20 μm; G–H = 2 mm." figureDoi="http://doi.org/10.5281/zenodo.13214149" httpUri="https://zenodo.org/record/13214149/files/figure.png" pageId="6" pageNumber="43">Figure 2D and 2E</figureCitation>
). Chromosomes: 2n = 22 (
<figureCitation id="131B2A59C0507F7EFAE6F934FA1E737E" box="[1322,1437,1784,1810]" captionStart="FIGURE 2" captionStartId="6.[136,229,1398,1420]" captionTargetBox="[154,1432,193,1375]" captionTargetId="figure-26@6.[151,1435,190,1375]" captionTargetPageId="6" captionText="FIGURE 2. Isoetes yuhangensis X. Liu &amp; Y.C. Chen. A. Proximal view of megaspore. B. Distal view of megaspore. C. Equatorial view of megaspore of. D. Proximal view of microspore of. E. Distal view of microspore. F. Mitotic chromosomes of root tip cells. G. Megasporangium. H. Microsporangium. I. Habitat. Scale bars:A–C = 100 μm; D–E = 5 μm; F = 20 μm; G–H = 2 mm." figureDoi="http://doi.org/10.5281/zenodo.13214149" httpUri="https://zenodo.org/record/13214149/files/figure.png" pageId="6" pageNumber="43">Figure 2F</figureCitation>
).
</paragraph>
</subSubSection>
<subSubSection id="C33A6557C0507F7EFF71F8D7FF6C7334" pageId="6" pageNumber="43" type="etymology">
<paragraph id="8B9F36DCC0507F7EFF71F8D7FF6C7334" blockId="6.[136,1452,1537,2092]" pageId="6" pageNumber="43">
<emphasis id="B954EACEC0507F7EFF71F8D7FECB7359" bold="true" box="[189,328,1819,1845]" pageId="6" pageNumber="43">Etymology:</emphasis>
—The specific epithet refers to the
<typeStatus id="549B887EC0507F7EFD20F8D7FC9F7359" box="[748,796,1819,1845]" pageId="6" pageNumber="43">type</typeStatus>
locality Yuhang district,
<collectingRegion id="49E4F83EC0507F7EFB89F8D7FB2F7359" box="[1093,1196,1819,1845]" country="China" name="Zhejiang" pageId="6" pageNumber="43">Zhejiang</collectingRegion>
, where this species is endemic.
</paragraph>
</subSubSection>
<subSubSection id="C33A6557C0507F7EFF71F8ADFD957C47" pageId="6" pageNumber="43" type="distribution">
<paragraph id="8B9F36DCC0507F7EFF71F8ADFD957C47" blockId="6.[136,1452,1537,2092]" pageId="6" pageNumber="43">
<emphasis id="B954EACEC0507F7EFF71F8ADFE707317" bold="true" box="[189,499,1889,1915]" pageId="6" pageNumber="43">Distribution and Habitat:</emphasis>
—
<taxonomicName id="4C204D5FC0507F7EFDC3F8AEFD6C7317" box="[527,751,1889,1915]" class="Lycopodiopsida" family="Isoetaceae" genus="Isoetes" kingdom="Plantae" order="Isoetales" pageId="6" pageNumber="43" phylum="Tracheophyta" rank="species" species="yuhangensis">
<emphasis id="B954EACEC0507F7EFDC3F8AEFD6C7317" box="[527,751,1889,1915]" italics="true" pageId="6" pageNumber="43">Isoetes yuhangensis</emphasis>
</taxonomicName>
is only known from one locality, Cibi village (
<figureCitation id="131B2A59C0507F7EFACAF8ADFAE97317" box="[1286,1386,1889,1915]" captionStart="FIGURE 6" captionStartId="9.[136,229,2066,2088]" captionTargetBox="[173,1414,1243,2033]" captionTargetId="figure-45@9.[164,1423,1234,2042]" captionTargetPageId="9" captionText="FIGURE 6. Distribution of Isoetes changleensis (blue) and I. yuhangensis (red) in China." figureDoi="http://doi.org/10.5281/zenodo.13214157" httpUri="https://zenodo.org/record/13214157/files/figure.png" pageId="6" pageNumber="43">Figure 6</figureCitation>
). The plants are located at the bottom of the mountain (
<figureCitation id="131B2A59C0507F7EFD68F848FC8D73F3" box="[676,782,1924,1951]" captionStart="FIGURE 2" captionStartId="6.[136,229,1398,1420]" captionTargetBox="[154,1432,193,1375]" captionTargetId="figure-26@6.[151,1435,190,1375]" captionTargetPageId="6" captionText="FIGURE 2. Isoetes yuhangensis X. Liu &amp; Y.C. Chen. A. Proximal view of megaspore. B. Distal view of megaspore. C. Equatorial view of megaspore of. D. Proximal view of microspore of. E. Distal view of microspore. F. Mitotic chromosomes of root tip cells. G. Megasporangium. H. Microsporangium. I. Habitat. Scale bars:A–C = 100 μm; D–E = 5 μm; F = 20 μm; G–H = 2 mm." figureDoi="http://doi.org/10.5281/zenodo.13214149" httpUri="https://zenodo.org/record/13214149/files/figure.png" pageId="6" pageNumber="43">Figure 2I</figureCitation>
), which are dominated by
<taxonomicName id="4C204D5FC0507F7EFBFFF849FEB673AE" authority="Hu &amp; W. C. Cheng" authorityName="Hu &amp; W. C. Cheng" class="Pinopsida" family="Cupressaceae" genus="Metasequoia" kingdom="Plantae" order="Pinales" pageId="6" pageNumber="43" phylum="Tracheophyta" rank="species" species="glyptostroboides">
<emphasis id="B954EACEC0507F7EFBFFF849FA0773F2" box="[1075,1412,1924,1950]" italics="true" pageId="6" pageNumber="43">Metasequoia glyptostroboides</emphasis>
Hu &amp; W. C. Cheng
</taxonomicName>
, and associated with
<taxonomicName id="4C204D5FC0507F7EFDECF864FC7973AE" authority="A. Braun &amp; Bouche" authorityName="A. Braun &amp; Bouche" box="[544,1018,1960,1986]" class="Liliopsida" family="Alismataceae" genus="Alisma" kingdom="Plantae" order="Alismatales" pageId="6" pageNumber="43" phylum="Tracheophyta" rank="species" species="canaliculatum">
<emphasis id="B954EACEC0507F7EFDECF864FC9773AE" box="[544,788,1960,1986]" italics="true" pageId="6" pageNumber="43">Alisma canaliculatum</emphasis>
A. Braun &amp; Bouché
</taxonomicName>
,
<taxonomicName id="4C204D5FC0507F7EFBC9F864FA2473AE" authority="(Vahl) Blume" authorityName="Blume" baseAuthorityName="Vahl" box="[1029,1447,1960,1986]" class="Magnoliopsida" family="Plantaginaceae" genus="Limnophila" kingdom="Plantae" order="Lamiales" pageId="6" pageNumber="43" phylum="Tracheophyta" rank="species" species="sessiliflora">
<emphasis id="B954EACEC0507F7EFBC9F864FA8473AE" box="[1029,1287,1960,1986]" italics="true" pageId="6" pageNumber="43">Limnophila sessiliflora</emphasis>
(Vahl) Blume
</taxonomicName>
,
<taxonomicName id="4C204D5FC0507F7EFF44F807FE537389" authority="Duby" authorityName="Duby" box="[136,464,1995,2021]" class="Magnoliopsida" family="Primulaceae" genus="Lysimachia" kingdom="Plantae" order="Ericales" pageId="6" pageNumber="43" phylum="Tracheophyta" rank="species" species="clethroides">
<emphasis id="B954EACEC0507F7EFF44F807FE097389" box="[136,394,1995,2021]" italics="true" pageId="6" pageNumber="43">Lysimachia clethroides</emphasis>
Duby
</taxonomicName>
, etc.
<taxonomicName id="4C204D5FC0507F7EFDC6F800FD6A7389" box="[522,745,1995,2021]" class="Lycopodiopsida" family="Isoetaceae" genus="Isoetes" kingdom="Plantae" order="Isoetales" pageId="6" pageNumber="43" phylum="Tracheophyta" rank="species" species="yuhangensis">
<emphasis id="B954EACEC0507F7EFDC6F800FD6A7389" box="[522,745,1995,2021]" italics="true" pageId="6" pageNumber="43">Isoetes yuhangensis</emphasis>
</taxonomicName>
is a rare and endangered species in
<collectingCountry id="F337764CC0507F7EFBB6F807FB427389" box="[1146,1217,1995,2021]" name="China" pageId="6" pageNumber="43">China</collectingCountry>
. We have found only one site in the Yuhang district. It is vital to protect the populations of these new
<taxonomicName id="4C204D5FC0507F7EFBCBF823FB337C64" box="[1031,1200,2030,2056]" pageId="6" pageNumber="43">
<emphasis id="B954EACEC0507F7EFBCBF823FBD67C64" box="[1031,1109,2031,2056]" italics="true" pageId="6" pageNumber="43">Isoetes</emphasis>
species
</taxonomicName>
, and there is an urgent need to find additional populations.
</paragraph>
</subSubSection>
</treatment>
</document>
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