310 lines
34 KiB
XML
310 lines
34 KiB
XML
<document ID-DOI="http://dx.doi.org/10.3897/phytokeys.201.79626" ID-Pensoft-Pub="1314-2003-201-35" ID-Pensoft-UUID="8E4C8C65FB8C5D7E80F81A6600AF7032" ModsDocID="1314-2003-201-35" checkinTime="1655810832160" checkinUser="pensoft" docAuthor="Long, Ji-Yan, Kociolek, John Patrick, Williams, David M., Liu, Bing, Mo, Wen-Hui & Chen, Jin-Hua" docDate="2022" docId="1C8F581FCFCE50B389E4441817CD6A05" docLanguage="en" docName="PhytoKeys 201: 35-49" docOrigin="PhytoKeys 201" docPubDate="2022-06-20" docSource="http://dx.doi.org/10.3897/phytokeys.201.79626" docTitle="Surirella suiningensis Bing Liu & D. M. Williams 2022, sp. nov." docType="treatment" docVersion="1" id="8E4C8C65FB8C5D7E80F81A6600AF7032" lastPageNumber="35" masterDocId="8E4C8C65FB8C5D7E80F81A6600AF7032" masterDocTitle="Two new freshwater species of Surirella (Bacillariophyta) from the Wuling Mountains, China" masterLastPageNumber="49" masterPageNumber="35" pageNumber="35" updateTime="1655810832160" updateUser="pensoft">
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<mods:mods xmlns:mods="http://www.loc.gov/mods/v3">
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<mods:titleInfo>
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<mods:title>Two new freshwater species of Surirella (Bacillariophyta) from the Wuling Mountains, China</mods:title>
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</mods:titleInfo>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Long, Ji-Yan</mods:namePart>
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<mods:affiliation>College of Biology and Environmental Sciences, Jishou University, Jishou 416000, China</mods:affiliation>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Kociolek, John Patrick</mods:namePart>
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<mods:nameIdentifier type="ORCID">https://orcid.org/0000-0001-9824-7164</mods:nameIdentifier>
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<mods:affiliation>Museum of Natural History and Department of Ecology and Evolutionary Biology, University of Colorado, Boulder, Colorado- 80309, USA</mods:affiliation>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Williams, David M.</mods:namePart>
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<mods:nameIdentifier type="ORCID">https://orcid.org/0000-0002-0584-307X</mods:nameIdentifier>
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<mods:affiliation>Department of Life Sciences, the Natural History Museum, Cromwell Road, London SW 7 5 BD, UK</mods:affiliation>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Liu, Bing</mods:namePart>
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<mods:nameIdentifier type="ORCID">https://orcid.org/0000-0002-8516-325X</mods:nameIdentifier>
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<mods:affiliation>College of Biology and Environmental Sciences, Jishou University, Jishou 416000, China</mods:affiliation>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Mo, Wen-Hui</mods:namePart>
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<mods:affiliation>College of Biology and Environmental Sciences, Jishou University, Jishou 416000, China</mods:affiliation>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Chen, Jin-Hua</mods:namePart>
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<mods:affiliation>College of Biology and Environmental Sciences, Jishou University, Jishou 416000, China</mods:affiliation>
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<mods:nameIdentifier type="email">cjh_jsu@jsu.edu.cn</mods:nameIdentifier>
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</mods:name>
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<mods:typeOfResource>text</mods:typeOfResource>
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<mods:relatedItem type="host">
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<mods:titleInfo>
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<mods:title>PhytoKeys</mods:title>
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</mods:titleInfo>
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<mods:part>
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<mods:date>2022</mods:date>
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<mods:detail type="pubDate">
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<mods:number>2022-06-20</mods:number>
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</mods:detail>
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<mods:detail type="volume">
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<mods:number>201</mods:number>
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</mods:detail>
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<mods:extent unit="page">
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<mods:start>35</mods:start>
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<mods:end>49</mods:end>
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</mods:extent>
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</mods:part>
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</mods:relatedItem>
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<mods:location>
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<mods:url>http://dx.doi.org/10.3897/phytokeys.201.79626</mods:url>
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</mods:location>
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<mods:classification>journal article</mods:classification>
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<mods:identifier type="DOI">http://dx.doi.org/10.3897/phytokeys.201.79626</mods:identifier>
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<mods:identifier type="Pensoft-Pub">1314-2003-201-35</mods:identifier>
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<mods:identifier type="Pensoft-UUID">8E4C8C65FB8C5D7E80F81A6600AF7032</mods:identifier>
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</mods:mods>
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<subSection pageId="0" pageNumber="35" type="results">
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<treatment LSID="urn:lsid:plazi:treatment:1C8F581FCFCE50B389E4441817CD6A05" httpUri="http://treatment.plazi.org/id/1C8F581FCFCE50B389E4441817CD6A05" lastPageNumber="35" pageId="0" pageNumber="35">
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<subSubSection pageId="0" pageNumber="35" type="nomenclature">
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<paragraph pageId="0" pageNumber="35">
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<taxonomicName LSID="1C8F581F-CFCE-50B3-89E4-441817CD6A05" authority="Bing Liu & D. M. Williams" authorityName="Bing Liu & D. M. Williams" authorityYear="2022" class="Bacillariophyceae" family="Surirellaceae" genus="Surirella" higherTaxonomySource="treatment-meta" kingdom="Plantae" lsidName="Surirella suiningensis" order="Surirellales" pageId="0" pageNumber="35" phylum="Bacillariophyta" rank="species" species="suiningensis" status="sp. nov.">Surirella suiningensis Bing Liu & D.M. Williams</taxonomicName>
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<taxonomicNameLabel pageId="0" pageNumber="35">sp. nov.</taxonomicNameLabel>
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="35" type="description">
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<paragraph pageId="0" pageNumber="35">
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<figureCitation captionStart="Figure 5" captionStartId="F5" captionText="Figure 5. Surirella suiningensis, sp. nov., LM. x 400 A-C three valves showing narrow-ovate outline, slightly heteropolar valves, straight valve median line, downward deflecting head and foot poles, distinctive fibulae spanning 70 - 80 % of half valve width except near each apex where a few fibulae meet at median line. Micrograph of holotype (B). Scale bar: 50 μm." figureDoi="10.3897/phytokeys.201.79626.figure5" httpUri="https://binary.pensoft.net/fig/703866" pageId="0" pageNumber="35">Figs 5</figureCitation>
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<figureCitation captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. Surirella suiningensis sp. nov., external view, SEM A one valve showing distinct continuous siliceous median ridge, downward deflecting head and foot poles (two arrows), and pattern of troughs alternating with crests B detail from A showing two troughs and one crest C, D apical details from A, note two curved terminal raphe fissures (C, two arrows) E marginal detail of A, note the recessed valve mantle with thickened base margin, no fenestrae existed, troughs on valve surface corresponding to those on the mantle (two black arrows). Scale bars: 20 μm (A); 2 μm (B-E)." figureDoi="10.3897/phytokeys.201.79626.figure6" httpUri="https://binary.pensoft.net/fig/703867" pageId="0" pageNumber="35">, 6</figureCitation>
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<figureCitation captionStart="Figure 7" captionStartId="F7" captionText="Figure 7. Surirella suiningensis, sp. nov., internal view, SEM A one complete valve showing fibulae extending close to median line and fibulae corresponding to the sinking of mantle (i. e. troughs, six arrows) B detail from A showing only one portula between two adjacent fibulae and uniseriate striae C sinking of mantle against the fibulae (two arrows) D, E apical details from B, note the raphe continuous at one apex (D, arrow) whereas interrupted at the other apex (E, one arrow pointing at a helictoglossa-like process). Scale bars: 20 μm (A); 2 μm (B, C, E); 1 μm (D)." figureDoi="10.3897/phytokeys.201.79626.figure7" httpUri="https://binary.pensoft.net/fig/703868" pageId="0" pageNumber="35">, 7</figureCitation>
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<figureCitation captionStart="Figure 8" captionStartId="F8" captionText="Figure 8. A-D Surirella suiningensis, sp. nov., internal view, SEM A one valve with valvocopula, note the open nature of valvocopula (arrow) B apical detail from A, note two helictoglossa-like processes (two arrows) C detail of open part of valvocopula D detail of valvocopula showing the rimmed areolae internally. Scale bars: 20 μm (A); 4 μm (B); 1 μm (C, D)." figureDoi="10.3897/phytokeys.201.79626.figure8" httpUri="https://binary.pensoft.net/fig/703869" pageId="0" pageNumber="35">, 8</figureCitation>
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="35" type="holotype">
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<paragraph pageId="0" pageNumber="35">Holotype.</paragraph>
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<paragraph pageId="0" pageNumber="35">
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<emphasis bold="true" italics="true" pageId="0" pageNumber="35">Holotype</emphasis>
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BM! 81893, specimen circled on slide, illustrated as Fig.
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<figureCitation captionStart="Figure 5" captionStartId="F5" captionText="Figure 5. Surirella suiningensis, sp. nov., LM. x 400 A-C three valves showing narrow-ovate outline, slightly heteropolar valves, straight valve median line, downward deflecting head and foot poles, distinctive fibulae spanning 70 - 80 % of half valve width except near each apex where a few fibulae meet at median line. Micrograph of holotype (B). Scale bar: 50 μm." figureDoi="10.3897/phytokeys.201.79626.figure5" httpUri="https://binary.pensoft.net/fig/703866" pageId="0" pageNumber="35">5B</figureCitation>
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; isotype JIU! G202107, specimen circled on slide, illustrated as Fig.
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<figureCitation captionStart="Figure 5" captionStartId="F5" captionText="Figure 5. Surirella suiningensis, sp. nov., LM. x 400 A-C three valves showing narrow-ovate outline, slightly heteropolar valves, straight valve median line, downward deflecting head and foot poles, distinctive fibulae spanning 70 - 80 % of half valve width except near each apex where a few fibulae meet at median line. Micrograph of holotype (B). Scale bar: 50 μm." figureDoi="10.3897/phytokeys.201.79626.figure5" httpUri="https://binary.pensoft.net/fig/703866" pageId="0" pageNumber="35">5A</figureCitation>
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.
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</paragraph>
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<caption doi="10.3897/phytokeys.201.79626.figure5" httpUri="https://binary.pensoft.net/fig/703866" pageId="0" pageNumber="35" start="Figure 5" startId="F5">
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<paragraph pageId="0" pageNumber="35">
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<emphasis bold="true" pageId="0" pageNumber="35">Figure 5.</emphasis>
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<taxonomicName authorityName="Bing Liu & D. M. Williams" authorityYear="2022" class="Bacillariophyceae" family="Surirellaceae" genus="Surirella" kingdom="Plantae" lsidName="Surirella suiningensis" order="Surirellales" pageId="0" pageNumber="35" phylum="Bacillariophyta" rank="species" species="suiningensis">
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<emphasis italics="true" pageId="0" pageNumber="35">Surirella suiningensis</emphasis>
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</taxonomicName>
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, sp. nov., LM.
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<normalizedToken originalValue="×">x</normalizedToken>
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400
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<emphasis bold="true" pageId="0" pageNumber="35">A-C</emphasis>
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three valves showing narrow-ovate outline, slightly heteropolar valves, straight valve median line, downward deflecting head and foot poles, distinctive fibulae spanning 70-80% of half valve width except near each apex where a few fibulae meet at median line. Micrograph of holotype (
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<emphasis bold="true" pageId="0" pageNumber="35">B</emphasis>
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). Scale bar: 50
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<normalizedToken originalValue="μm">μm</normalizedToken>
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.
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</paragraph>
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</caption>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="35" type="type locality">
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<paragraph pageId="0" pageNumber="35">Type locality.</paragraph>
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<paragraph pageId="0" pageNumber="35">
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China. Hunan Province: the course of Wu River, a sampling point at Changpu Town, Suining County,
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<geoCoordinate degrees="26" direction="north" minutes="34.59" orientation="latitude" precision="9" value="26.5765">26°34.59'N</geoCoordinate>
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,
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<geoCoordinate degrees="110" direction="east" minutes="09.19" orientation="longitude" precision="9" value="110.15317">110°09.19'E</geoCoordinate>
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, 300 m a.s.l., collected by Bing Liu, March 22, 2021.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="35" type="description">
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<paragraph pageId="0" pageNumber="35">Description.</paragraph>
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<paragraph pageId="0" pageNumber="35">
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<emphasis bold="true" italics="true" pageId="0" pageNumber="35">LM</emphasis>
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(Fig.
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<figureCitation captionStart="Figure 5" captionStartId="F5" captionText="Figure 5. Surirella suiningensis, sp. nov., LM. x 400 A-C three valves showing narrow-ovate outline, slightly heteropolar valves, straight valve median line, downward deflecting head and foot poles, distinctive fibulae spanning 70 - 80 % of half valve width except near each apex where a few fibulae meet at median line. Micrograph of holotype (B). Scale bar: 50 μm." figureDoi="10.3897/phytokeys.201.79626.figure5" httpUri="https://binary.pensoft.net/fig/703866" pageId="0" pageNumber="35">5</figureCitation>
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). Valves narrowly ovate, heteropolar, with downward deflecting head and foot poles; headpole broadly rounded whereas footpole narrowly rounded. Valve dimensions (n = 8): 148-173
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<normalizedToken originalValue="μm">μm</normalizedToken>
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long, 49-55
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<normalizedToken originalValue="μm">μm</normalizedToken>
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wide (measured at widest valve part). Valve face appearing smooth, without undulations and costae. Valve midline straight, downward deflecting at each apex. Fibulae very distinctive, parallel in valve middle part, radiate at two apices, 20-24 in 100
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<normalizedToken originalValue="μm">μm</normalizedToken>
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. Fibulae extending from mantle towards midline, spanning 70-80% of half valve width except near each apex where few fibulae nearly meet at median line.
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</paragraph>
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<paragraph pageId="0" pageNumber="35">
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<emphasis bold="true" italics="true" pageId="0" pageNumber="35">SEM</emphasis>
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(Figs
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<figureCitation captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. Surirella suiningensis sp. nov., external view, SEM A one valve showing distinct continuous siliceous median ridge, downward deflecting head and foot poles (two arrows), and pattern of troughs alternating with crests B detail from A showing two troughs and one crest C, D apical details from A, note two curved terminal raphe fissures (C, two arrows) E marginal detail of A, note the recessed valve mantle with thickened base margin, no fenestrae existed, troughs on valve surface corresponding to those on the mantle (two black arrows). Scale bars: 20 μm (A); 2 μm (B-E)." figureDoi="10.3897/phytokeys.201.79626.figure6" httpUri="https://binary.pensoft.net/fig/703867" pageId="0" pageNumber="35">6</figureCitation>
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-
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<figureCitation captionStart="Figure 8" captionStartId="F8" captionText="Figure 8. A-D Surirella suiningensis, sp. nov., internal view, SEM A one valve with valvocopula, note the open nature of valvocopula (arrow) B apical detail from A, note two helictoglossa-like processes (two arrows) C detail of open part of valvocopula D detail of valvocopula showing the rimmed areolae internally. Scale bars: 20 μm (A); 4 μm (B); 1 μm (C, D)." figureDoi="10.3897/phytokeys.201.79626.figure8" httpUri="https://binary.pensoft.net/fig/703869" pageId="0" pageNumber="35">8</figureCitation>
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). Valve smooth, canal raphe system located around valve margins, slightly raised (Fig.
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<figureCitation captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. Surirella suiningensis sp. nov., external view, SEM A one valve showing distinct continuous siliceous median ridge, downward deflecting head and foot poles (two arrows), and pattern of troughs alternating with crests B detail from A showing two troughs and one crest C, D apical details from A, note two curved terminal raphe fissures (C, two arrows) E marginal detail of A, note the recessed valve mantle with thickened base margin, no fenestrae existed, troughs on valve surface corresponding to those on the mantle (two black arrows). Scale bars: 20 μm (A); 2 μm (B-E)." figureDoi="10.3897/phytokeys.201.79626.figure6" httpUri="https://binary.pensoft.net/fig/703867" pageId="0" pageNumber="35">6A</figureCitation>
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). Median line slightly raised, continuous from pole to pole, downward deflecting at both apices (Fig.
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<figureCitation captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. Surirella suiningensis sp. nov., external view, SEM A one valve showing distinct continuous siliceous median ridge, downward deflecting head and foot poles (two arrows), and pattern of troughs alternating with crests B detail from A showing two troughs and one crest C, D apical details from A, note two curved terminal raphe fissures (C, two arrows) E marginal detail of A, note the recessed valve mantle with thickened base margin, no fenestrae existed, troughs on valve surface corresponding to those on the mantle (two black arrows). Scale bars: 20 μm (A); 2 μm (B-E)." figureDoi="10.3897/phytokeys.201.79626.figure6" httpUri="https://binary.pensoft.net/fig/703867" pageId="0" pageNumber="35">6A</figureCitation>
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). Valve surface producing shallow troughs and higher crests (Fig.
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<figureCitation captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. Surirella suiningensis sp. nov., external view, SEM A one valve showing distinct continuous siliceous median ridge, downward deflecting head and foot poles (two arrows), and pattern of troughs alternating with crests B detail from A showing two troughs and one crest C, D apical details from A, note two curved terminal raphe fissures (C, two arrows) E marginal detail of A, note the recessed valve mantle with thickened base margin, no fenestrae existed, troughs on valve surface corresponding to those on the mantle (two black arrows). Scale bars: 20 μm (A); 2 μm (B-E)." figureDoi="10.3897/phytokeys.201.79626.figure6" httpUri="https://binary.pensoft.net/fig/703867" pageId="0" pageNumber="35">6A, B</figureCitation>
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), and troughs alternating with crests from pole to pole. Costae (thickened siliceous ribs) absent (Fig.
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<figureCitation captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. Surirella suiningensis sp. nov., external view, SEM A one valve showing distinct continuous siliceous median ridge, downward deflecting head and foot poles (two arrows), and pattern of troughs alternating with crests B detail from A showing two troughs and one crest C, D apical details from A, note two curved terminal raphe fissures (C, two arrows) E marginal detail of A, note the recessed valve mantle with thickened base margin, no fenestrae existed, troughs on valve surface corresponding to those on the mantle (two black arrows). Scale bars: 20 μm (A); 2 μm (B-E)." figureDoi="10.3897/phytokeys.201.79626.figure6" httpUri="https://binary.pensoft.net/fig/703867" pageId="0" pageNumber="35">6B</figureCitation>
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). Each trough corresponding to its internal fibula, each crest composed of c. 16-27 uniseriate striae (Fig.
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<figureCitation captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. Surirella suiningensis sp. nov., external view, SEM A one valve showing distinct continuous siliceous median ridge, downward deflecting head and foot poles (two arrows), and pattern of troughs alternating with crests B detail from A showing two troughs and one crest C, D apical details from A, note two curved terminal raphe fissures (C, two arrows) E marginal detail of A, note the recessed valve mantle with thickened base margin, no fenestrae existed, troughs on valve surface corresponding to those on the mantle (two black arrows). Scale bars: 20 μm (A); 2 μm (B-E)." figureDoi="10.3897/phytokeys.201.79626.figure6" httpUri="https://binary.pensoft.net/fig/703867" pageId="0" pageNumber="35">6B, E</figureCitation>
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). Distal raphe endings curved (Fig.
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<figureCitation captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. Surirella suiningensis sp. nov., external view, SEM A one valve showing distinct continuous siliceous median ridge, downward deflecting head and foot poles (two arrows), and pattern of troughs alternating with crests B detail from A showing two troughs and one crest C, D apical details from A, note two curved terminal raphe fissures (C, two arrows) E marginal detail of A, note the recessed valve mantle with thickened base margin, no fenestrae existed, troughs on valve surface corresponding to those on the mantle (two black arrows). Scale bars: 20 μm (A); 2 μm (B-E)." figureDoi="10.3897/phytokeys.201.79626.figure6" httpUri="https://binary.pensoft.net/fig/703867" pageId="0" pageNumber="35">6C, D</figureCitation>
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). Mantle with same pattern as valve surface, troughs align with each other (Fig.
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<figureCitation captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. Surirella suiningensis sp. nov., external view, SEM A one valve showing distinct continuous siliceous median ridge, downward deflecting head and foot poles (two arrows), and pattern of troughs alternating with crests B detail from A showing two troughs and one crest C, D apical details from A, note two curved terminal raphe fissures (C, two arrows) E marginal detail of A, note the recessed valve mantle with thickened base margin, no fenestrae existed, troughs on valve surface corresponding to those on the mantle (two black arrows). Scale bars: 20 μm (A); 2 μm (B-E)." figureDoi="10.3897/phytokeys.201.79626.figure6" httpUri="https://binary.pensoft.net/fig/703867" pageId="0" pageNumber="35">6E</figureCitation>
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). Internally, fibulae evident, extending from mantle to median line, spanning 70-80% of half valve width. Striae uniseriate, 47-51 in 10
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<normalizedToken originalValue="μm">μm</normalizedToken>
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. External openings of areolae slit-like (Fig.
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<figureCitation captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. Surirella suiningensis sp. nov., external view, SEM A one valve showing distinct continuous siliceous median ridge, downward deflecting head and foot poles (two arrows), and pattern of troughs alternating with crests B detail from A showing two troughs and one crest C, D apical details from A, note two curved terminal raphe fissures (C, two arrows) E marginal detail of A, note the recessed valve mantle with thickened base margin, no fenestrae existed, troughs on valve surface corresponding to those on the mantle (two black arrows). Scale bars: 20 μm (A); 2 μm (B-E)." figureDoi="10.3897/phytokeys.201.79626.figure6" httpUri="https://binary.pensoft.net/fig/703867" pageId="0" pageNumber="35">6B</figureCitation>
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) while internal openings rounded and rimmed (Fig.
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<figureCitation captionStart="Figure 7" captionStartId="F7" captionText="Figure 7. Surirella suiningensis, sp. nov., internal view, SEM A one complete valve showing fibulae extending close to median line and fibulae corresponding to the sinking of mantle (i. e. troughs, six arrows) B detail from A showing only one portula between two adjacent fibulae and uniseriate striae C sinking of mantle against the fibulae (two arrows) D, E apical details from B, note the raphe continuous at one apex (D, arrow) whereas interrupted at the other apex (E, one arrow pointing at a helictoglossa-like process). Scale bars: 20 μm (A); 2 μm (B, C, E); 1 μm (D)." figureDoi="10.3897/phytokeys.201.79626.figure7" httpUri="https://binary.pensoft.net/fig/703868" pageId="0" pageNumber="35">7D</figureCitation>
|
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). One portula and 16-27 uniseriate striae located between two adjacent fibulae (Fig.
|
||
<figureCitation captionStart="Figure 7" captionStartId="F7" captionText="Figure 7. Surirella suiningensis, sp. nov., internal view, SEM A one complete valve showing fibulae extending close to median line and fibulae corresponding to the sinking of mantle (i. e. troughs, six arrows) B detail from A showing only one portula between two adjacent fibulae and uniseriate striae C sinking of mantle against the fibulae (two arrows) D, E apical details from B, note the raphe continuous at one apex (D, arrow) whereas interrupted at the other apex (E, one arrow pointing at a helictoglossa-like process). Scale bars: 20 μm (A); 2 μm (B, C, E); 1 μm (D)." figureDoi="10.3897/phytokeys.201.79626.figure7" httpUri="https://binary.pensoft.net/fig/703868" pageId="0" pageNumber="35">7B</figureCitation>
|
||
). Sinking of mantle against fibulae present (Fig.
|
||
<figureCitation captionStart="Figure 7" captionStartId="F7" captionText="Figure 7. Surirella suiningensis, sp. nov., internal view, SEM A one complete valve showing fibulae extending close to median line and fibulae corresponding to the sinking of mantle (i. e. troughs, six arrows) B detail from A showing only one portula between two adjacent fibulae and uniseriate striae C sinking of mantle against the fibulae (two arrows) D, E apical details from B, note the raphe continuous at one apex (D, arrow) whereas interrupted at the other apex (E, one arrow pointing at a helictoglossa-like process). Scale bars: 20 μm (A); 2 μm (B, C, E); 1 μm (D)." figureDoi="10.3897/phytokeys.201.79626.figure7" httpUri="https://binary.pensoft.net/fig/703868" pageId="0" pageNumber="35">7C</figureCitation>
|
||
). Raphe continuous at one apex whereas interrupted at other apex (Figs
|
||
<figureCitation captionStart="Figure 7" captionStartId="F7" captionText="Figure 7. Surirella suiningensis, sp. nov., internal view, SEM A one complete valve showing fibulae extending close to median line and fibulae corresponding to the sinking of mantle (i. e. troughs, six arrows) B detail from A showing only one portula between two adjacent fibulae and uniseriate striae C sinking of mantle against the fibulae (two arrows) D, E apical details from B, note the raphe continuous at one apex (D, arrow) whereas interrupted at the other apex (E, one arrow pointing at a helictoglossa-like process). Scale bars: 20 μm (A); 2 μm (B, C, E); 1 μm (D)." figureDoi="10.3897/phytokeys.201.79626.figure7" httpUri="https://binary.pensoft.net/fig/703868" pageId="0" pageNumber="35">7E</figureCitation>
|
||
,
|
||
<figureCitation captionStart="Figure 8" captionStartId="F8" captionText="Figure 8. A-D Surirella suiningensis, sp. nov., internal view, SEM A one valve with valvocopula, note the open nature of valvocopula (arrow) B apical detail from A, note two helictoglossa-like processes (two arrows) C detail of open part of valvocopula D detail of valvocopula showing the rimmed areolae internally. Scale bars: 20 μm (A); 4 μm (B); 1 μm (C, D)." figureDoi="10.3897/phytokeys.201.79626.figure8" httpUri="https://binary.pensoft.net/fig/703869" pageId="0" pageNumber="35">8B</figureCitation>
|
||
). Valvocopula open (Fig.
|
||
<figureCitation captionStart="Figure 8" captionStartId="F8" captionText="Figure 8. A-D Surirella suiningensis, sp. nov., internal view, SEM A one valve with valvocopula, note the open nature of valvocopula (arrow) B apical detail from A, note two helictoglossa-like processes (two arrows) C detail of open part of valvocopula D detail of valvocopula showing the rimmed areolae internally. Scale bars: 20 μm (A); 4 μm (B); 1 μm (C, D)." figureDoi="10.3897/phytokeys.201.79626.figure8" httpUri="https://binary.pensoft.net/fig/703869" pageId="0" pageNumber="35">8A, C</figureCitation>
|
||
) and rimmed areolae internally (Fig.
|
||
<figureCitation captionStart="Figure 8" captionStartId="F8" captionText="Figure 8. A-D Surirella suiningensis, sp. nov., internal view, SEM A one valve with valvocopula, note the open nature of valvocopula (arrow) B apical detail from A, note two helictoglossa-like processes (two arrows) C detail of open part of valvocopula D detail of valvocopula showing the rimmed areolae internally. Scale bars: 20 μm (A); 4 μm (B); 1 μm (C, D)." figureDoi="10.3897/phytokeys.201.79626.figure8" httpUri="https://binary.pensoft.net/fig/703869" pageId="0" pageNumber="35">8D</figureCitation>
|
||
).
|
||
</paragraph>
|
||
<caption doi="10.3897/phytokeys.201.79626.figure6" httpUri="https://binary.pensoft.net/fig/703867" pageId="0" pageNumber="35" start="Figure 6" startId="F6">
|
||
<paragraph pageId="0" pageNumber="35">
|
||
<emphasis bold="true" pageId="0" pageNumber="35">Figure 6.</emphasis>
|
||
<taxonomicName authorityName="Bing Liu & D. M. Williams" authorityYear="2022" class="Bacillariophyceae" family="Surirellaceae" genus="Surirella" kingdom="Plantae" lsidName="Surirella suiningensis" order="Surirellales" pageId="0" pageNumber="35" phylum="Bacillariophyta" rank="species" species="suiningensis">
|
||
<emphasis italics="true" pageId="0" pageNumber="35">Surirella suiningensis</emphasis>
|
||
</taxonomicName>
|
||
sp. nov., external view, SEM
|
||
<emphasis bold="true" pageId="0" pageNumber="35">A</emphasis>
|
||
one valve showing distinct continuous siliceous median ridge, downward deflecting head and foot poles (two arrows), and pattern of troughs alternating with crests
|
||
<emphasis bold="true" pageId="0" pageNumber="35">B</emphasis>
|
||
detail from
|
||
<emphasis bold="true" pageId="0" pageNumber="35">A</emphasis>
|
||
showing two troughs and one crest
|
||
<emphasis bold="true" pageId="0" pageNumber="35">C, D</emphasis>
|
||
apical details from
|
||
<emphasis bold="true" pageId="0" pageNumber="35">A</emphasis>
|
||
, note two curved terminal raphe fissures (
|
||
<emphasis bold="true" pageId="0" pageNumber="35">C</emphasis>
|
||
, two arrows)
|
||
<emphasis bold="true" pageId="0" pageNumber="35">E</emphasis>
|
||
marginal detail of
|
||
<emphasis bold="true" pageId="0" pageNumber="35">A</emphasis>
|
||
, note the recessed valve mantle with thickened base margin, no fenestrae existed, troughs on valve surface corresponding to those on the mantle (two black arrows). Scale bars: 20
|
||
<normalizedToken originalValue="μm">μm</normalizedToken>
|
||
(
|
||
<emphasis bold="true" pageId="0" pageNumber="35">A</emphasis>
|
||
); 2
|
||
<normalizedToken originalValue="μm">μm</normalizedToken>
|
||
(
|
||
<emphasis bold="true" pageId="0" pageNumber="35">B-E</emphasis>
|
||
).
|
||
</paragraph>
|
||
</caption>
|
||
<caption doi="10.3897/phytokeys.201.79626.figure7" httpUri="https://binary.pensoft.net/fig/703868" pageId="0" pageNumber="35" start="Figure 7" startId="F7">
|
||
<paragraph pageId="0" pageNumber="35">
|
||
<emphasis bold="true" pageId="0" pageNumber="35">Figure 7.</emphasis>
|
||
<taxonomicName authorityName="Bing Liu & D. M. Williams" authorityYear="2022" class="Bacillariophyceae" family="Surirellaceae" genus="Surirella" kingdom="Plantae" lsidName="Surirella suiningensis" order="Surirellales" pageId="0" pageNumber="35" phylum="Bacillariophyta" rank="species" species="suiningensis">
|
||
<emphasis italics="true" pageId="0" pageNumber="35">Surirella suiningensis</emphasis>
|
||
</taxonomicName>
|
||
, sp. nov., internal view, SEM
|
||
<emphasis bold="true" pageId="0" pageNumber="35">A</emphasis>
|
||
one complete valve showing fibulae extending close to median line and fibulae corresponding to the sinking of mantle (i.e. troughs, six arrows)
|
||
<emphasis bold="true" pageId="0" pageNumber="35">B</emphasis>
|
||
detail from
|
||
<emphasis bold="true" pageId="0" pageNumber="35">A</emphasis>
|
||
showing only one portula between two adjacent fibulae and uniseriate striae
|
||
<emphasis bold="true" pageId="0" pageNumber="35">C</emphasis>
|
||
sinking of mantle against the fibulae (two arrows)
|
||
<emphasis bold="true" pageId="0" pageNumber="35">D, E</emphasis>
|
||
apical details from
|
||
<emphasis bold="true" pageId="0" pageNumber="35">B</emphasis>
|
||
, note the raphe continuous at one apex (
|
||
<emphasis bold="true" pageId="0" pageNumber="35">D</emphasis>
|
||
, arrow) whereas interrupted at the other apex (
|
||
<emphasis bold="true" pageId="0" pageNumber="35">E</emphasis>
|
||
, one arrow pointing at a helictoglossa-like process). Scale bars: 20
|
||
<normalizedToken originalValue="μm">μm</normalizedToken>
|
||
(
|
||
<emphasis bold="true" pageId="0" pageNumber="35">A</emphasis>
|
||
); 2
|
||
<normalizedToken originalValue="μm">μm</normalizedToken>
|
||
(
|
||
<emphasis bold="true" pageId="0" pageNumber="35">B, C, E</emphasis>
|
||
); 1
|
||
<normalizedToken originalValue="μm">μm</normalizedToken>
|
||
(
|
||
<emphasis bold="true" pageId="0" pageNumber="35">D</emphasis>
|
||
).
|
||
</paragraph>
|
||
</caption>
|
||
<caption doi="10.3897/phytokeys.201.79626.figure8" httpUri="https://binary.pensoft.net/fig/703869" pageId="0" pageNumber="35" start="Figure 8" startId="F8">
|
||
<paragraph pageId="0" pageNumber="35">
|
||
<emphasis bold="true" pageId="0" pageNumber="35">Figure 8.</emphasis>
|
||
<emphasis bold="true" pageId="0" pageNumber="35">A-D</emphasis>
|
||
<taxonomicName authorityName="Bing Liu & D. M. Williams" authorityYear="2022" class="Bacillariophyceae" family="Surirellaceae" genus="Surirella" kingdom="Plantae" lsidName="Surirella suiningensis" order="Surirellales" pageId="0" pageNumber="35" phylum="Bacillariophyta" rank="species" species="suiningensis">
|
||
<emphasis italics="true" pageId="0" pageNumber="35">Surirella suiningensis</emphasis>
|
||
</taxonomicName>
|
||
, sp. nov., internal view, SEM
|
||
<emphasis bold="true" pageId="0" pageNumber="35">A</emphasis>
|
||
one valve with valvocopula, note the open nature of valvocopula (arrow)
|
||
<emphasis bold="true" pageId="0" pageNumber="35">B</emphasis>
|
||
apical detail from
|
||
<emphasis bold="true" pageId="0" pageNumber="35">A</emphasis>
|
||
, note two helictoglossa-like processes (two arrows)
|
||
<emphasis bold="true" pageId="0" pageNumber="35">C</emphasis>
|
||
detail of open part of valvocopula
|
||
<emphasis bold="true" pageId="0" pageNumber="35">D</emphasis>
|
||
detail of valvocopula showing the rimmed areolae internally. Scale bars: 20
|
||
<normalizedToken originalValue="μm">μm</normalizedToken>
|
||
(
|
||
<emphasis bold="true" pageId="0" pageNumber="35">A</emphasis>
|
||
); 4
|
||
<normalizedToken originalValue="μm">μm</normalizedToken>
|
||
(
|
||
<emphasis bold="true" pageId="0" pageNumber="35">B</emphasis>
|
||
); 1
|
||
<normalizedToken originalValue="μm">μm</normalizedToken>
|
||
(
|
||
<emphasis bold="true" pageId="0" pageNumber="35">C, D</emphasis>
|
||
).
|
||
</paragraph>
|
||
</caption>
|
||
</subSubSection>
|
||
<subSubSection pageId="0" pageNumber="35" type="etymology">
|
||
<paragraph pageId="0" pageNumber="35">Etymology.</paragraph>
|
||
<paragraph pageId="0" pageNumber="35">Named after Suining County of Hunan Province, where the species was found.</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="0" pageNumber="35" type="ecology">
|
||
<paragraph pageId="0" pageNumber="35">Ecology and distribution.</paragraph>
|
||
<paragraph pageId="0" pageNumber="35">
|
||
Epilithic in a mountain river with oligotrophic waters.
|
||
<taxonomicName authorityName="Bing Liu & D. M. Williams" authorityYear="2022" class="Bacillariophyceae" family="Surirellaceae" genus="Surirella" kingdom="Plantae" lsidName="Surirella suiningensis" order="Surirellales" pageId="0" pageNumber="35" phylum="Bacillariophyta" rank="species" species="suiningensis">
|
||
<emphasis italics="true" pageId="0" pageNumber="35">Surirella suiningensis</emphasis>
|
||
</taxonomicName>
|
||
was found in the same sampling site with
|
||
<taxonomicName class="Bacillariophyceae" family="Surirellaceae" genus="S." higherTaxonomySource="GBIF" kingdom="Plantae" lsidName="S. wufluminensis" order="Rhopalodiales" pageId="0" pageNumber="35" phylum="Bacillariophyta" rank="species" species="wufluminensis">
|
||
<emphasis italics="true" pageId="0" pageNumber="35">S. wufluminensis</emphasis>
|
||
</taxonomicName>
|
||
, for the environmental parameters, see above.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</subSection>
|
||
</document> |