<documentid="F91DD176DA3B9DAF63A39C73C08CC562"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 & Liu, Xing"docDate="2024"docId="038987CAC0527F7DFF44FA98FEB27349"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 changleensis Y. C. Chen & X. Liu, sp. nov."docType="treatment"docVersion="3"lastPageNumber="42"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="41"updateTime="1725537017063"updateUser="guilherme"zenodo-license-figures="UNSPECIFIED"zenodo-license-treatments="UNSPECIFIED">
<mods:titleid="9FF1D1E6BB9061102388F023F353249E">Two new diploid species of Isoetes (Isoetaceae: Lycopodiopsida) from Southeastern China based on morphological and molecular evidence</mods:title>
<mods:affiliationid="94B3A50934158A3BB00DA91717480D5B">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>
<mods:affiliationid="B892848FD424CDA1D1917047A9DB2975">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>
<mods:affiliationid="63D9101E28236149B9C26235B674BBA6">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>
<mods:affiliationid="722CA1EE2D5B980BA3F0244A67747A69">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>
<mods:affiliationid="2D6844546E3332F43FE544FB276B0FED">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>
<taxonomicNameid="4C204D5FC0527F7CFF44FA98FDDE7102"ID-CoL="CDF2Z"authority="Y.C. Chen & X. Liu"authorityName="Y. C. Chen & X. Liu"box="[136,605,1364,1391]"class="Lycopodiopsida"family="Isoetaceae"genus="Isoetes"kingdom="Plantae"order="Isoetales"pageId="4"pageNumber="41"phylum="Tracheophyta"rank="species"species="changleensis"status="sp. nov.">
<figureCitationid="131B2A59C0527F7CFD01FA98FCA87102"box="[717,811,1364,1390]"captionStart="FIGURE 1"captionStartId="5.[136,229,1410,1432]"captionTargetBox="[154,1432,190,1380]"captionTargetId="figure-17@5.[151,1435,187,1383]"captionTargetPageId="5"captionText="FIGURE 1. Isoetes changleensis Y.C. Chen & X. Liu. A. Proximal view of megaspore. B. Distal view of megaspore. C. Equatorial view of megaspore. D. Proximal view of microspore. E. Distal view of microspore. F. The 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.13214147"httpUri="https://zenodo.org/record/13214147/files/figure.png"pageId="4"pageNumber="41">Figure 1</figureCitation>
by its 3-lobed corms (vs 2-lobed corms), deltoid to subcordate ligule (vs cuniform ligule), tuberculate to rugulate megasprore (vs tuberculate-cristate megasprore), a broad equatorial band with densely rugulate ornamentation (vs not observed), and chromosomes 22 (vs 44).
<collectingDateid="EFDAE9F4C0527F7CFEA4F9C0FDA6724D"box="[360,549,1548,1570]"pageId="4"pageNumber="41"value="2021-09-27">27 September 2021</collectingDate>
wide at the base, erect to ascending, apex acute to attenuate. Ligule deltoid to subcordate, consisting of a thin membrane, inserted above sporangium, generally not visible in dry material. Labium present, reniform-orbicular. Sporangium 9.0–
<figureCitationid="131B2A59C0527F7CFE06F8C8FD1B7372"box="[458,664,1796,1822]"captionStart="FIGURE 1"captionStartId="5.[136,229,1410,1432]"captionTargetBox="[154,1432,190,1380]"captionTargetId="figure-17@5.[151,1435,187,1383]"captionTargetPageId="5"captionText="FIGURE 1. Isoetes changleensis Y.C. Chen & X. Liu. A. Proximal view of megaspore. B. Distal view of megaspore. C. Equatorial view of megaspore. D. Proximal view of microspore. E. Distal view of microspore. F. The 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.13214147"httpUri="https://zenodo.org/record/13214147/files/figure.png"pageId="4"pageNumber="41">Figure 1G and 1H</figureCitation>
<figureCitationid="131B2A59C0527F7CFC5EF880FBB9730A"box="[914,1082,1868,1894]"captionStart="FIGURE 1"captionStartId="5.[136,229,1410,1432]"captionTargetBox="[154,1432,190,1380]"captionTargetId="figure-17@5.[151,1435,187,1383]"captionTargetPageId="5"captionText="FIGURE 1. Isoetes changleensis Y.C. Chen & X. Liu. A. Proximal view of megaspore. B. Distal view of megaspore. C. Equatorial view of megaspore. D. Proximal view of microspore. E. Distal view of microspore. F. The 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.13214147"httpUri="https://zenodo.org/record/13214147/files/figure.png"pageId="4"pageNumber="41">Figure 1A–1C</figureCitation>
<figureCitationid="131B2A59C0527F7CFF38F858FE3C73C2"box="[244,447,1940,1966]"captionStart="FIGURE 1"captionStartId="5.[136,229,1410,1432]"captionTargetBox="[154,1432,190,1380]"captionTargetId="figure-17@5.[151,1435,187,1383]"captionTargetPageId="5"captionText="FIGURE 1. Isoetes changleensis Y.C. Chen & X. Liu. A. Proximal view of megaspore. B. Distal view of megaspore. C. Equatorial view of megaspore. D. Proximal view of microspore. E. Distal view of microspore. F. The 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.13214147"httpUri="https://zenodo.org/record/13214147/files/figure.png"pageId="4"pageNumber="41">Figure 1D and 1E</figureCitation>
<figureCitationid="131B2A59C0527F7CFD26F858FCDF73C2"box="[746,860,1940,1966]"captionStart="FIGURE 1"captionStartId="5.[136,229,1410,1432]"captionTargetBox="[154,1432,190,1380]"captionTargetId="figure-17@5.[151,1435,187,1383]"captionTargetPageId="5"captionText="FIGURE 1. Isoetes changleensis Y.C. Chen & X. Liu. A. Proximal view of megaspore. B. Distal view of megaspore. C. Equatorial view of megaspore. D. Proximal view of microspore. E. Distal view of microspore. F. The 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.13214147"httpUri="https://zenodo.org/record/13214147/files/figure.png"pageId="4"pageNumber="41">Figure 1F</figureCitation>
<taxonomicNameid="4C204D5FC0537F7DFEC5FA4FFCAA71F5"authority="Y. C. Chen & X. Liu. A. Proximal"box="[265,809,1411,1433]"class="Lycopodiopsida"family="Isoetaceae"genus="Isoetes"kingdom="Plantae"order="Isoetales"pageId="5"pageNumber="42"phylum="Tracheophyta"rank="species"species="changleensis">
view of megaspore. B. Distal view of megaspore. C. Equatorial view of megaspore. D. Proximal view of microspore. E. Distal view of microspore. F. The 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.
<figureCitationid="131B2A59C0537F7DFE76F9FFFDA37221"box="[442,544,1587,1613]"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="5"pageNumber="42">Figure 6</figureCitation>
<figureCitationid="131B2A59C0537F7DFBC2F9FFFB0B7221"box="[1038,1160,1587,1613]"captionStart="FIGURE 1"captionStartId="5.[136,229,1410,1432]"captionTargetBox="[154,1432,190,1380]"captionTargetId="figure-17@5.[151,1435,187,1383]"captionTargetPageId="5"captionText="FIGURE 1. Isoetes changleensis Y.C. Chen & X. Liu. A. Proximal view of megaspore. B. Distal view of megaspore. C. Equatorial view of megaspore. D. Proximal view of microspore. E. Distal view of microspore. F. The 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.13214147"httpUri="https://zenodo.org/record/13214147/files/figure.png"pageId="5"pageNumber="42">Figure 1H</figureCitation>
<taxonomicNameid="4C204D5FC0537F7DFD00F994FB91721D"authority="Franch. & Sav"authorityName="Franch. & Sav"box="[716,1042,1623,1649]"class="Liliopsida"family="Juncaceae"genus="Juncus"kingdom="Plantae"order="Poales"pageId="5"pageNumber="42"phylum="Tracheophyta"rank="species"species="alatus">
<figureCitationid="131B2A59C0537F7DFDA3F953FD5B72D5"box="[623,728,1695,1721]"captionStart="FIGURE 1"captionStartId="5.[136,229,1410,1432]"captionTargetBox="[154,1432,190,1380]"captionTargetId="figure-17@5.[151,1435,187,1383]"captionTargetPageId="5"captionText="FIGURE 1. Isoetes changleensis Y.C. Chen & X. Liu. A. Proximal view of megaspore. B. Distal view of megaspore. C. Equatorial view of megaspore. D. Proximal view of microspore. E. Distal view of microspore. F. The 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.13214147"httpUri="https://zenodo.org/record/13214147/files/figure.png"pageId="5"pageNumber="42">Figure 1I</figureCitation>
<collectionCodeid="ED31AE19C0537F7DFA56F92BFA2F736D"box="[1434,1452,1767,1793]"country="USA"lsid="urn:lsid:biocol.org:col:15406"name="Harvard University - Arnold Arboretum"pageId="5"pageNumber="42"type="Herbarium">A</collectionCode>