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<document id="FE264622116824E2D99987F7C265E138" ID-CLB-Dataset="300704" ID-DOI="10.11646/phytotaxa.642.4.2" ID-GBIF-Dataset="6c58cb6d-dbcb-4dc5-8d35-64b08d1e4072" ID-ISSN="1179-3163" ID-Zenodo-Dep="13214365" IM.bibliography_approvedBy="guilherme" IM.illustrations_approvedBy="felipe" IM.materialsCitations_approvedBy="guilherme" IM.taxonomicNames_approvedBy="felipe" IM.treatments_approvedBy="felipe" checkinTime="1722597770412" checkinUser="felipe" docAuthor="Liu, Qi, Liu, Enhui, You, Qingmin, Wang, Qinghua, Kociolek, John Patrick &amp; Xie, Shulian" docDate="2024" docId="C800951C297C3330FF604442FD9817F8" docLanguage="en" docName="phytotaxa.642.4.2.pdf" docOrigin="Phytotaxa 642 (4)" docSource="http://dx.doi.org/10.11646/phytotaxa.642.4.2" docStyle="DocumentStyle:96748F8F1B6C902996E134952A3A36B9.13:Phytotaxa.2014-.journal_article" docStyleId="96748F8F1B6C902996E134952A3A36B9" docStyleName="Phytotaxa.2014-.journal_article" docStyleVersion="13" docTitle="Eunotia pseudoambivalens Q. Liu, S. L. Xie &amp; Kociolek, sp. nov." docType="treatment" docVersion="3" lastPageNumber="250" masterDocId="3439ED64297B3338FFE84137FFE81053" masterDocTitle="New and Interesting Diatoms from the Shiwan Wetwalls, Yunnan Province, China. III. Valve ultrastructure of four new species of Eunotia (Bacillariophyceae: Eunotiales)" masterLastPageNumber="254" masterPageNumber="242" pageNumber="249" updateTime="1725970173556" updateUser="guilherme" zenodo-license-figures="UNSPECIFIED" zenodo-license-treatments="UNSPECIFIED">
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<mods:title id="AEE652EC839475CC6350AD14DCAFD7FD">New and Interesting Diatoms from the Shiwan Wetwalls, Yunnan Province, China. III. Valve ultrastructure of four new species of Eunotia (Bacillariophyceae: Eunotiales)</mods:title>
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<mods:namePart id="160D67BD5AA090FE9BCEB705C2FDCBB8">Liu, Qi</mods:namePart>
<mods:nameIdentifier id="0B1AB8816D17EF33E02C8DB35B30756D" type="ORCID">0000-0002-8710-4560</mods:nameIdentifier>
<mods:affiliation id="6566FDF174889B0754AD3D68533DE447">School of Life Science, Shanxi University, Taiyuan, People’s Republic of China</mods:affiliation>
<mods:nameIdentifier id="10C5CF7742F11E9EE0726F1617A6D6EA" type="email">liuqi317@126.com</mods:nameIdentifier>
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<mods:namePart id="F3E123ECD381A94C329D8394BD1765D9">Liu, Enhui</mods:namePart>
<mods:nameIdentifier id="33A9B505C3ED938A1AADE034B623766B" type="ORCID">0009-0008-0343-6981</mods:nameIdentifier>
<mods:affiliation id="8522E0C4065D7BC7E1717AC96863AF87">School of Life Science, Shanxi University, Taiyuan, People’s Republic of China</mods:affiliation>
<mods:nameIdentifier id="8E0F06B1DE41855CC971F29132B07A4B" type="email">18835572665leh@gmail.com</mods:nameIdentifier>
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<mods:namePart id="F64F592836DC3D4EBA01ECB7081F5D0A">You, Qingmin</mods:namePart>
<mods:nameIdentifier id="F2A2990882D41EC0291047E78BF66D1E" type="ORCID">0000-0002-5538-8503</mods:nameIdentifier>
<mods:affiliation id="CBF17B001BCF1F7449F5D4AB3A9352F5">College of Life Sciences, Shanghai Normal University, Shanghai, People’s Republic of China</mods:affiliation>
<mods:nameIdentifier id="3F64754E0552B43C0C9A4593DD61C0F1" type="email">youqm1117@163.com</mods:nameIdentifier>
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<mods:namePart id="84BFD65F5CEB0886ABBBBE67F31A839C">Wang, Qinghua</mods:namePart>
<mods:nameIdentifier id="D1BD64446241516A960CC70351FDC196" type="ORCID">0000-0002-1060-0822</mods:nameIdentifier>
<mods:affiliation id="7C7121BA2AAF1311E5D770F405EFB5FC">Department of Biology, Taiyuan Normal University, Jinzhong 030619, People’s Republic of China</mods:affiliation>
<mods:nameIdentifier id="B3DC3B376326EDEB15274B3095C4DC77" type="email">wqinghua123@126.com</mods:nameIdentifier>
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<mods:namePart id="AC9A7E450C2974ED0A42BAD612D740DA">Kociolek, John Patrick</mods:namePart>
<mods:nameIdentifier id="291BE666A06412B9F57AFE46A1FBEC56" type="ORCID">0000-0001-9824-7164</mods:nameIdentifier>
<mods:affiliation id="0ED3495E664CD9254E0DEE6AA8A81A12">Museum of Natural History and Department of Ecology and Evolutionary Biology, University of Colorado, Boulder, CO, USA</mods:affiliation>
<mods:nameIdentifier id="2FB4B03CCFC177CF1176C74EF525066A" type="email">patrick.kociolek@colorado.edu</mods:nameIdentifier>
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<mods:namePart id="8A6E20AA9D334F94F82450F23BE2A375">Xie, Shulian</mods:namePart>
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<mods:affiliation id="B5C0466397100A2B78A781D0E57D88AE">School of Life Science, Shanxi University, Taiyuan, People’s Republic of China</mods:affiliation>
<mods:nameIdentifier id="96E67551736A52AAC019D90A786CB9D6" type="email">xiesl@sxu.edu.cn</mods:nameIdentifier>
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<mods:title id="866AD55616D87EBDEE352CEE2355F5FE">Phytotaxa</mods:title>
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<mods:date id="8FE9296C2F2B23971CECB243FC31AD9B">2024</mods:date>
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<mods:number id="7AEFFA905210FADFA1C75EA9D2229F26">2024-04-03</mods:number>
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<mods:number id="6B6A5B99CEC71BD25F1A99FF19781F72">642</mods:number>
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<mods:classification id="3F1A8ACD389E75981686D4C58CA6D566">journal article</mods:classification>
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<treatment id="C800951C297C3330FF604442FD9817F8" ID-DOI="http://doi.org/10.5281/zenodo.13213371" ID-GBIF-Taxon="237646893" ID-Zenodo-Dep="13213371" LSID="urn:lsid:plazi:treatment:C800951C297C3330FF604442FD9817F8" httpUri="http://treatment.plazi.org/id/C800951C297C3330FF604442FD9817F8" lastPageId="8" lastPageNumber="250" pageId="7" pageNumber="249">
<subSubSection id="08B37781297C333FFF604442FAF115DC" box="[136,1305,1397,1424]" pageId="7" pageNumber="249" type="nomenclature">
<paragraph id="4016240A297C333FFF604442FAF115DC" blockId="7.[136,1305,1397,1424]" box="[136,1305,1397,1424]" pageId="7" pageNumber="249">
<heading id="1B5E9366297C333FFF604442FAF115DC" box="[136,1305,1397,1424]" fontSize="11" level="2" pageId="7" pageNumber="249" reason="3">
<taxonomicName id="87A95F89297C333FFF604442FCE615DC" authority="Q. Liu, S. L. Xie &amp; Kociolek" authorityName="Q. Liu, S. L. Xie &amp; Kociolek" box="[136,782,1397,1424]" class="Bacillariophyceae" family="Eunotiaceae" genus="Eunotia" higherTaxonomySource="GBIF" kingdom="Chromista" order="Eunotiales" pageId="7" pageNumber="249" phylum="Bacillariophyta" rank="species" species="pseudoambivalens" status="sp. nov.">
<emphasis id="72DDF818297C333FFF604442FE2815C3" bold="true" box="[136,448,1397,1424]" italics="true" pageId="7" pageNumber="249">Eunotia pseudoambivalens</emphasis>
Q. Liu, S. L. Xie &amp; Kociolek
</taxonomicName>
<emphasis id="72DDF818297C333FFCFD4441FC8215DC" box="[789,874,1398,1423]" italics="true" pageId="7" pageNumber="249">
<taxonomicNameLabel id="69EE4563297C333FFCFD4441FC8215DC" box="[789,874,1398,1423]" pageId="7" pageNumber="249" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
<emphasis id="72DDF818297C333FFC984442FAF115DC" bold="true" box="[880,1305,1397,1423]" pageId="7" pageNumber="249">(LM: Figs 51–59, SEM: Figs 60–65)</emphasis>
</heading>
</paragraph>
</subSubSection>
<subSubSection id="08B37781297C333FFF60448AFC15176C" pageId="7" pageNumber="249" type="description">
<paragraph id="4016240A297C333FFF60448AFD841617" blockId="7.[136,1452,1469,1964]" pageId="7" pageNumber="249">Description: Valves arched, with the dorsal margin convex and the ventral margin concave. Ends slightly produced, rounded (Figs 51–59). Length 62–130 µm, breadth 5–7 µm. Striae straight to irregular, comprised of fine areolae. Striae number 9–14 / 10 µm. External distal raphe ends curve up onto the valve face and extend to the dorsal margin. A wide, blunt spine is present at each apex.</paragraph>
<paragraph id="4016240A297C333FFF554779FC15176C" blockId="7.[136,1452,1469,1964]" pageId="7" pageNumber="249">In the SEM, the valve exterior has striae composed of round to rectangular areolae bordered by a thin rim and occluded (Figs 60–62). The striae on the valve face are offset from their continuation onto the mantle (Fig. 62). The distal raphe ends curve next to the base of a spine and extend onto the dorsal margin. Towards each apex a short, blunt spine with a wide base is present (Fig. 61). Internally, the striae are composed of narrow slits near the center of the valve, but near the apices round, individual areolae are evident (Figs 64, 65). The raphe terminates as a helictoglossa and a rimoportula is present at one end of the valve only (to the right when the valve is oriented with the dorsal margin at the top of the image) (Fig. 64). Each apex has a pseudoseptum (Figs 63, 64).</paragraph>
</subSubSection>
<subSubSection id="08B37781297C333FFF55467DFC8517FF" pageId="7" pageNumber="249" type="materials_examined">
<paragraph id="4016240A297C333FFF55467DFC8517FF" blockId="7.[136,1452,1469,1964]" pageId="7" pageNumber="249">
<emphasis id="72DDF818297C333FFF55467DFEE91737" bold="true" box="[189,257,1866,1892]" pageId="7" pageNumber="249">Type:</emphasis>
<materialsCitation id="F0C12E57297C333FFEE5467DFC5217D4" collectionCode="SXU" country="China" location="Shiwan" municipality="Shiwan" pageId="7" pageNumber="249" specimenCode="YN201904055-1" specimenCount="1" stateProvince="Yunnan Province" typeStatus="holotype">
<collectingCountry id="38BE649A297C333FFEE5467DFE8E1737" box="[269,358,1866,1892]" name="China" pageId="7" pageNumber="249">CHINA</collectingCountry>
.
<collectingRegion id="826DEAE8297C333FFE9F467DFDD61730" box="[375,574,1865,1892]" country="China" name="Yunnan" pageId="7" pageNumber="249">Yunnan Province</collectingRegion>
,
<collectingMunicipality id="A072BE70297C333FFDA6467EFD4A1730" box="[590,674,1865,1891]" pageId="7" pageNumber="249">Shiwan</collectingMunicipality>
wet wall.
<typeStatus id="9F129AA8297C333FFCCD467EFC651730" box="[805,909,1865,1891]" pageId="7" pageNumber="249" type="holotype">Holotype</typeStatus>
Preparation Slide No.
<specimenCode id="100F8C71297C333FFB76467EFAB41737" box="[1182,1372,1865,1892]" pageId="7" pageNumber="249">
YN201904055-
<quantity id="875189EF297C333FFABC467EFA961730" box="[1364,1406,1865,1892]" metricMagnitude="-2" metricUnit="m" metricValue="2.54" pageId="7" pageNumber="249" unit="in" value="1.0">1 in</quantity>
</specimenCode>
the Freshwater Algal Herbarium of Shanxi University (
<collectionCode id="26B8BCCF297C333FFD544659FD1E17DB" box="[700,758,1902,1928]" collectionName="SXU" country="China" httpUri="http://biocol.org/urn:lsid:biocol.org:col:14021" lsid="urn:lsid:biocol.org:col:14021" name="Shanxi University" pageId="7" pageNumber="249" type="Herbarium">SXU</collectionCode>
), Taiyuan, China.
</materialsCitation>
<materialsCitation id="F0C12E57297C333FFC574659FC8F17FF" collectionCode="COLO" pageId="7" pageNumber="249" specimenCode="YN201904055-2" specimenCount="1" typeStatus="isotype">
<typeStatus id="9F129AA8297C333FFC574659FBF917DB" box="[959,1041,1902,1928]" pageId="7" pageNumber="249" type="isotype">Isotype</typeStatus>
slide No.
<specimenCode id="100F8C71297C333FFB95465AFAD317DB" box="[1149,1339,1901,1928]" pageId="7" pageNumber="249">YN201904055-2</specimenCode>
deposited in the Kociolek Collection at the University of Colorado (
<collectionCode id="26B8BCCF297C333FFCE646A5FCB417FF" box="[782,860,1938,1964]" collectionName="COLO" country="USA" httpUri="http://biocol.org/urn:lsid:biocol.org:col:15540" lsid="urn:lsid:biocol.org:col:15540" name="University of Colorado Herbarium" pageId="7" pageNumber="249" type="Herbarium">COLO</collectionCode>
)
</materialsCitation>
.
</paragraph>
</subSubSection>
<caption id="14D6748229733330FF6044D3FA4916D9" ID-DOI="http://doi.org/10.5281/zenodo.13214383" ID-Zenodo-Dep="13214383" httpUri="https://zenodo.org/record/13214383/files/figure.png" pageId="8" pageNumber="250" startId="8.[136,218,1508,1529]" subCaptionStartIDs="8.[538,579,1616,1638]" subCaptionStarts="Figs 63" targetBox="[160,1427,199,1479]" targetPageId="8" targetType="plate">
<paragraph id="4016240A29733330FF6044D3FA4916D9" blockId="8.[136,1452,1507,1674]" pageId="8" pageNumber="250">
<emphasis id="72DDF81829733330FF6044D3FF1D15AA" bold="true" box="[136,245,1508,1529]" pageId="8" pageNumber="250">PLATE 8.</emphasis>
<taxonomicName id="87A95F8929733330FF1544D3FCD015A9" authority="Q. Liu, S. L. Xie &amp; Kociolek" authorityName="Q. Liu, S. L. Xie &amp; Kociolek" box="[253,824,1507,1530]" class="Bacillariophyceae" family="Eunotiaceae" genus="Eunotia" higherTaxonomySource="GBIF" kingdom="Chromista" order="Eunotiales" pageId="8" pageNumber="250" phylum="Bacillariophyta" rank="species" species="pseudoambivalens" status="sp. nov.">
<emphasis id="72DDF81829733330FF1544D3FDE215AA" bold="true" box="[253,522,1507,1529]" italics="true" pageId="8" pageNumber="250">Eunotia pseudoambivalens</emphasis>
Q. Liu, S. L. Xie &amp; Kociolek
</taxonomicName>
,
<emphasis id="72DDF81829733330FCAE44D2FC7A15A9" box="[838,914,1509,1530]" italics="true" pageId="8" pageNumber="250">
<taxonomicNameLabel id="69EE456329733330FCAE44D2FC7A15A9" box="[838,914,1509,1530]" pageId="8" pageNumber="250" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
Figures 60–65. Scanning electron microscope images. Figures 60–62, external views. Fig. 60. Whole valve view.A single, thick spine is present at each apex. Fig. 61. Apex of the valve showing spine with thick base, distal raphe end curving from the ventral mantle to the dorsal mantle. Areolae are occluded. Fig. 61. Mid-valve showing uniseriate striae with occlusions. Figs 63–65, internal views. Fig. 63. Whole valve with a pseudoseptum present at each apex. Fig. 64. Valve apex showing pseudoseptum, thickened rimoportula and helictoglossa. Fig. 65. Mid-valve with striae in trough-like openings.
</paragraph>
</caption>
<subSubSection id="08B3778129733330FF55478FFAFC1681" box="[189,1300,1720,1747]" pageId="8" pageNumber="250" type="etymology">
<paragraph id="4016240A29733330FF55478FFAFC1681" blockId="8.[136,1452,1720,1963]" box="[189,1300,1720,1747]" pageId="8" pageNumber="250">
<emphasis id="72DDF81829733330FF55478FFEA01681" bold="true" box="[189,328,1720,1746]" pageId="8" pageNumber="250">Etymology:</emphasis>
Named for its superficial resemblance to
<taxonomicName id="87A95F8929733330FCF5478EFAFC1681" authority="Lange-Bertalot &amp; Tagliaventi." authorityName="Lange-Bertalot &amp; Tagliaventi." box="[797,1300,1720,1746]" class="Bacillariophyceae" family="Eunotiaceae" genus="Eunotia" higherTaxonomySource="GBIF" kingdom="Chromista" order="Eunotiales" pageId="8" pageNumber="250" phylum="Bacillariophyta" rank="species" species="ambivalens">
<emphasis id="72DDF81829733330FCF5478EFC541681" box="[797,956,1720,1746]" italics="true" pageId="8" pageNumber="250">E. ambivalens</emphasis>
Lange-Bertalot &amp; Tagliaventi.
</taxonomicName>
</paragraph>
</subSubSection>
<subSubSection id="08B3778129733330FF5547EBFD9817F8" pageId="8" pageNumber="250" type="discussion">
<paragraph id="4016240A29733330FF5547EBFE1817D5" blockId="8.[136,1452,1720,1963]" pageId="8" pageNumber="250">
<emphasis id="72DDF81829733330FF5547EBFEA016A5" bold="true" box="[189,328,1756,1782]" pageId="8" pageNumber="250">Comments:</emphasis>
This species superficially resembles
<taxonomicName id="87A95F8929733330FD0F47EAFB3E16A5" authority="Lange-Bertalot &amp; Tagliaventi" authorityName="Lange-Bertalot &amp; Tagliaventi" box="[743,1238,1756,1782]" class="Bacillariophyceae" family="Eunotiaceae" genus="Eunotia" higherTaxonomySource="GBIF" kingdom="Chromista" order="Eunotiales" pageId="8" pageNumber="250" phylum="Bacillariophyta" rank="species" species="ambivalens">
<emphasis id="72DDF81829733330FD0F47EAFC6E16A5" box="[743,902,1756,1782]" italics="true" pageId="8" pageNumber="250">E. ambivalens</emphasis>
Lange-Bertalot &amp; Tagliaventi
</taxonomicName>
(in
<bibRefCitation id="243859FB29733330FAEA47EBFF161749" author="Lange-Bertalot, H. &amp; Bak, M. &amp; Witkowski, A." pageId="8" pageNumber="250" pagination="1 - 747" refId="ref6419" refString="Lange-Bertalot, H., Bak, M. &amp; Witkowski, A. (2011) Eunotia and some related genera. Diatoms of Europe 6: 1 - 747." type="journal article" year="2011">
Lange-Bertalot
<emphasis id="72DDF81829733330FF604636FF501749" box="[136,184,1792,1818]" italics="true" pageId="8" pageNumber="250">et al</emphasis>
. 2011
</bibRefCitation>
) in size and general outline. The European
<taxonomicName id="87A95F8929733330FD354636FC941749" box="[733,892,1792,1818]" class="Bacillariophyceae" family="Eunotiaceae" genus="Eunotia" higherTaxonomySource="GBIF" kingdom="Chromista" order="Eunotiales" pageId="8" pageNumber="250" phylum="Bacillariophyta" rank="species" species="ambivalens">
<emphasis id="72DDF81829733330FD354636FC941749" box="[733,892,1792,1818]" italics="true" pageId="8" pageNumber="250">E. ambivalens</emphasis>
</taxonomicName>
also has a reported wide variation in straie density similar to
<taxonomicName id="87A95F8929733330FF124612FE00176D" box="[250,488,1828,1854]" class="Bacillariophyceae" family="Eunotiaceae" genus="Eunotia" higherTaxonomySource="GBIF" kingdom="Chromista" order="Eunotiales" pageId="8" pageNumber="250" phylum="Bacillariophyta" rank="species" species="pseudoambivalens">
<emphasis id="72DDF81829733330FF124612FE00176D" box="[250,488,1828,1854]" italics="true" pageId="8" pageNumber="250">E. pseudoambivalens</emphasis>
</taxonomicName>
. The two species differ in the curvature of the external distal raphe end, presence of a terminal spine in
<taxonomicName id="87A95F8929733330FEA4467EFDD21731" box="[332,570,1864,1890]" class="Bacillariophyceae" family="Eunotiaceae" genus="Eunotia" higherTaxonomySource="GBIF" kingdom="Chromista" order="Eunotiales" pageId="8" pageNumber="250" phylum="Bacillariophyta" rank="species" species="pseudoambivalens">
<emphasis id="72DDF81829733330FEA4467EFDD21731" box="[332,570,1864,1890]" italics="true" pageId="8" pageNumber="250">E. pseudoambivalens</emphasis>
</taxonomicName>
(which is lacking in the European taxon) and structure of the interstriae (more robust in
<taxonomicName id="87A95F8929733330FF1A465AFE0817D5" box="[242,480,1900,1926]" class="Bacillariophyceae" family="Eunotiaceae" genus="Eunotia" higherTaxonomySource="GBIF" kingdom="Chromista" order="Eunotiales" pageId="8" pageNumber="250" phylum="Bacillariophyta" rank="species" species="pseudoambivalens">
<emphasis id="72DDF81829733330FF1A465AFE0817D5" box="[242,480,1900,1926]" italics="true" pageId="8" pageNumber="250">E. pseudoambivalens</emphasis>
</taxonomicName>
).
</paragraph>
<paragraph id="4016240A29733330FF5546A6FD9817F8" blockId="8.[136,1452,1720,1963]" box="[189,624,1936,1963]" pageId="8" pageNumber="250">Present only in sample YN201904055.</paragraph>
</subSubSection>
</treatment>
</document>
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