treatments-xml/data/C0/72/7E/C0727E167D6DF126FF01F984063BFBD9.xml

262 lines
53 KiB
XML
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

<document id="B3F89747C80DCAFC2683462B75E85A22" ID-CLB-Dataset="306631" ID-DOI="10.11646/phytotaxa.663.1.6" ID-GBIF-Dataset="b2393695-9b92-4426-8b15-943eb6b75484" ID-ISSN="1179-3163" ID-Zenodo-Dep="14515987" IM.bibliography_approvedBy="felipe" IM.illustrations_approvedBy="felipe" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" IM.treatments_approvedBy="felipe" checkinTime="1734536287899" checkinUser="felipe" docAuthor="Vijver, Bart Van De &amp; Wetzel, Carlos E." docDate="2024" docId="C0727E167D6DF126FF01F984063BFBD9" docLanguage="en" docName="phytotaxa.663.1.049-054.pdf" docOrigin="Phytotaxa 663 (1)" docSource="https://doi.org/10.11646/phytotaxa.663.1.6" docStyle="DocumentStyle:96748F8F1B6C902996E134952A3A36B9.13:Phytotaxa.2014-.journal_article" docStyleId="96748F8F1B6C902996E134952A3A36B9" docStyleName="Phytotaxa.2014-.journal_article" docStyleVersion="13" docTitle="Pseudostaurosira katharinae Van de Vijver &amp; C. E. Wetzel 2024, sp. nov." docType="treatment" docVersion="2" lastPageNumber="52" masterDocId="3C4B066E7D6CF125FF89FF94037EFFD7" masterDocTitle="A new Pseudostaurosira species (Bacillariophyta, Staurosiraceae) from lowland rivers and lakes in Europe (Atlantic Biogeographic Region)" masterLastPageNumber="54" masterPageNumber="49" pageNumber="50" updateTime="1734536956711" updateUser="ExternalLinkService" zenodo-license-figures="UNSPECIFIED" zenodo-license-treatments="UNSPECIFIED">
<mods:mods id="C890A00D2A5E745546B518C0F55A4DF6" xmlns:mods="http://www.loc.gov/mods/v3">
<mods:titleInfo id="0D2CDC12F091FA78B63413051E1BCDAF">
<mods:title id="6171B7467C3D5B574EC8D75CDD821557">A new Pseudostaurosira species (Bacillariophyta, Staurosiraceae) from lowland rivers and lakes in Europe (Atlantic Biogeographic Region)</mods:title>
</mods:titleInfo>
<mods:name id="622022B9B630BD94E254DD2B0E22718E" type="personal">
<mods:role id="70C1FC93B58A7D0500AA6D5176F62BC7">
<mods:roleTerm id="61FCF8C86738E1BFAA94711C666B0990">Author</mods:roleTerm>
</mods:role>
<mods:namePart id="97CDECED0B5435F7986F90B154E4BECE">Vijver, Bart Van De</mods:namePart>
<mods:nameIdentifier id="010AA09ECC26604E72E6110E0C9AF83A" type="ORCID">0000-0002-6244-1886</mods:nameIdentifier>
<mods:affiliation id="73E32B54A8CE816FDC95FD0CEF015082">Meise Botanic Garden, Research Department, Nieuwelaan 38, 1860 Meise, Belgium &amp; University of Antwerp, Department of Biology - ECOSPHERE, Universiteitsplein 1, 2610 Wilrijk, Belgium</mods:affiliation>
<mods:nameIdentifier id="1D5477A46BD3550F73BB6817120697DB" type="email">bart.vandevijver@plantentuinmeise.be</mods:nameIdentifier>
</mods:name>
<mods:name id="4BC5BB3F6C223FB0033C047219D652FC" type="personal">
<mods:role id="AF339233653503B6F284DA49E60E3BAB">
<mods:roleTerm id="45A7F33DC96D11B7A42FA7E8636ADA6F">Author</mods:roleTerm>
</mods:role>
<mods:namePart id="8EED62318FD54916DB7356C61561060C">Wetzel, Carlos E.</mods:namePart>
<mods:nameIdentifier id="4EA89CCAA4E1C73F70A8FC57355232CB" type="ORCID">0000-0001-5330-0494</mods:nameIdentifier>
<mods:affiliation id="18577D62D3DB1533958510C2971700D2">Luxembourg Institute of Science and Technology (LIST), Observatory for Climate, Environment and Biodiversity (OCEB), L- 4422 Belvaux, Luxembourg</mods:affiliation>
<mods:nameIdentifier id="1CD6F65F35089C1CA9D8E0EADD2B65EF" type="email">carlos.wetzel@list.lu</mods:nameIdentifier>
</mods:name>
<mods:typeOfResource id="3576D86AEAC9CB2829D2C47DE8C124A9">text</mods:typeOfResource>
<mods:relatedItem id="F4B38CA83E2DC1E98F3B4BE0DC6EFF7C" type="host">
<mods:titleInfo id="99270B8AF9D0A3E0171A6D347A4B3C8A">
<mods:title id="1B3F1FFD37E6F30D3DA6B2D420AD9B30">Phytotaxa</mods:title>
</mods:titleInfo>
<mods:part id="32CB7606B6D4709E6A9890FC2AD5D242">
<mods:date id="1D830B062DC50C10B81F537A053B0ADD">2024</mods:date>
<mods:detail id="23F8554A09085A66F720879FD75E9114" type="pubDate">
<mods:number id="56A8DF946C2FE848137961CD3F2820EC">2024-08-15</mods:number>
</mods:detail>
<mods:detail id="C12824BD563A7B2AC376615C3C5ECB66" type="volume">
<mods:number id="5D872EB14A4FFED3FDAF60B014AF6C81">663</mods:number>
</mods:detail>
<mods:detail id="6675DB4AEDB86DD808F452AFAB44108C" type="issue">
<mods:number id="42C6B0E2A2367CF11A0C2A0A81027422">1</mods:number>
</mods:detail>
<mods:extent id="2955DB9A41E032355B69C9F854CEFF9E" unit="page">
<mods:start id="C873439FC818DAA3EB0C6B4E257D3BFF">49</mods:start>
<mods:end id="B054AC06E152018CD34494282955C468">54</mods:end>
</mods:extent>
</mods:part>
</mods:relatedItem>
<mods:location id="FC2970F711B326AE43099B7B293824CC">
<mods:url id="B9DFCB3C60C8F1365304B5558FEBEB6A">https://doi.org/10.11646/phytotaxa.663.1.6</mods:url>
</mods:location>
<mods:classification id="DCB176773ED686E174AAAF9168027028">journal article</mods:classification>
<mods:identifier id="1B043696A68C7FF140E2DA4C756D79F0" type="CLB-Dataset">306631</mods:identifier>
<mods:identifier id="F4310038540DA9BFBC17127391BBF7A0" type="DOI">10.11646/phytotaxa.663.1.6</mods:identifier>
<mods:identifier id="3F447727489B6B0E4DCA880F746F7738" type="GBIF-Dataset">b2393695-9b92-4426-8b15-943eb6b75484</mods:identifier>
<mods:identifier id="0FD30D21B86E267499EAA54B1B1BE342" type="ISSN">1179-3163</mods:identifier>
<mods:identifier id="72604A7BEE62687122926E4B170F53B6" type="Zenodo-Dep">14515987</mods:identifier>
</mods:mods>
<treatment id="C0727E167D6DF126FF01F984063BFBD9" ID-DOI="http://doi.org/10.5281/zenodo.14515989" ID-Zenodo-Dep="14515989" LSID="urn:lsid:plazi:treatment:C0727E167D6DF126FF01F984063BFBD9" httpUri="http://treatment.plazi.org/id/C0727E167D6DF126FF01F984063BFBD9" lastPageId="3" lastPageNumber="52" pageId="1" pageNumber="50">
<subSubSection id="00C19C8B7D6DF126FF01F98402E6FED6" lastPageId="3" lastPageNumber="52" pageId="1" pageNumber="50" type="nomenclature">
<paragraph id="4864CF007D6DF124FF01F98407A1F9FD" blockId="1.[136,1247,1552,1579]" box="[136,1247,1552,1579]" pageId="1" pageNumber="50">
<heading id="132C786C7D6DF124FF01F98407A1F9FD" bold="true" box="[136,1247,1552,1579]" fontSize="11" level="1" pageId="1" pageNumber="50" reason="1">
<emphasis id="7AAF13127D6DF124FF01F98407A1F9FD" bold="true" box="[136,1247,1552,1579]" pageId="1" pageNumber="50">
<taxonomicName id="8FDBB4837D6DF124FF01F9840055F9FD" authority="Van de Vijver &amp; C.E.Wetzel" authorityName="Van de Vijver &amp; C. E. Wetzel" authorityYear="2024" box="[136,811,1552,1579]" class="Bacillariophyceae" family="Fragilariaceae" genus="Pseudostaurosira" higherTaxonomySource="GBIF" kingdom="Chromista" order="Fragilariales" pageId="1" pageNumber="50" phylum="Ochrophyta" rank="species" species="katharinae" status="sp. nov.">
<emphasis id="7AAF13127D6DF124FF01F98402A8F9FC" bold="true" box="[136,470,1552,1579]" italics="true" pageId="1" pageNumber="50">Pseudostaurosira katharinae</emphasis>
Van de Vijver &amp; C.E.Wetzel
</taxonomicName>
<emphasis id="7AAF13127D6DF124FCBBF98400F6F9FD" bold="true" box="[818,904,1552,1578]" italics="true" pageId="1" pageNumber="50">
<taxonomicNameLabel id="619CAE697D6DF124FCBBF98400F6F9FD" box="[818,904,1552,1578]" pageId="1" pageNumber="50" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
(
<figureCitation id="D0E0D3857D6DF124FC1EF9840774F9FD" box="[919,1034,1552,1578]" captionStart="FIGURES 125" captionStartId="2.[136,248,1848,1870]" captionTargetBox="[193,1394,187,1821]" captionTargetId="figure-25@2.[193,1394,187,1821]" captionTargetPageId="2" captionText="FIGURES 125. Pseudostaurosira katharinae Van de Vijver &amp; C.E.Wetzel sp. nov. LM and SEM taken from the holotype sample (BR- 4850, Bosbeek, Maaseik, Belgium). 12. LM pictures of two connected frustules in girdle view. 317. LM pictures of valves in valve face view in decreasing length. 1819 SEM external view of a complete frustule in girdle view showing the girdle structure, the large mantle with the mantle plaques and the apical depression (white arrow). 2022. SEM external view three valves showing the large sternum, the spine structure, the large apical pore fields and the areolae decreasing in diameter towards the sternum. Note the circular series of small siliceous papillae around the areolae and the spines. 23. SEM external detail of the valve apex with the apical pore field. 24. SEM external detail of the areolae and the spines. 25. SEM internal view of a complete valve. Scale bars: 10 μm (117); 1 μm (1825)." figureDoi="http://doi.org/10.5281/zenodo.14515991" httpUri="https://zenodo.org/record/14515991/files/figure.png" pageId="1" pageNumber="50">Figs 117</figureCitation>
LM, 1827 SEM)
</emphasis>
</heading>
</paragraph>
<paragraph id="4864CF007D6DF126FF01F9CC02E6FED6" blockId="1.[136,1452,1624,2083]" lastBlockId="3.[136,1452,158,1038]" lastPageId="3" lastPageNumber="52" pageId="1" pageNumber="50">
Frustules rectangular in girdle view, solitary or in pairs (
<figureCitation id="D0E0D3857D6DF124FC87F9CC0008F9A5" box="[782,886,1624,1650]" captionStart="FIGURES 125" captionStartId="2.[136,248,1848,1870]" captionTargetBox="[193,1394,187,1821]" captionTargetId="figure-25@2.[193,1394,187,1821]" captionTargetPageId="2" captionText="FIGURES 125. Pseudostaurosira katharinae Van de Vijver &amp; C.E.Wetzel sp. nov. LM and SEM taken from the holotype sample (BR- 4850, Bosbeek, Maaseik, Belgium). 12. LM pictures of two connected frustules in girdle view. 317. LM pictures of valves in valve face view in decreasing length. 1819 SEM external view of a complete frustule in girdle view showing the girdle structure, the large mantle with the mantle plaques and the apical depression (white arrow). 2022. SEM external view three valves showing the large sternum, the spine structure, the large apical pore fields and the areolae decreasing in diameter towards the sternum. Note the circular series of small siliceous papillae around the areolae and the spines. 23. SEM external detail of the valve apex with the apical pore field. 24. SEM external detail of the areolae and the spines. 25. SEM internal view of a complete valve. Scale bars: 10 μm (117); 1 μm (1825)." figureDoi="http://doi.org/10.5281/zenodo.14515991" httpUri="https://zenodo.org/record/14515991/files/figure.png" pageId="1" pageNumber="50">Figs 12</figureCitation>
). Ribbon-like colonies so far not observed. Valve mantle broad, with a large hyaline abvalvar part. Mantle plaques small but distinctly present on the mantle edge (
<figureCitation id="D0E0D3857D6DF124FAF3F9E803ACF96D" captionStart="FIGURES 125" captionStartId="2.[136,248,1848,1870]" captionTargetBox="[193,1394,187,1821]" captionTargetId="figure-25@2.[193,1394,187,1821]" captionTargetPageId="2" captionText="FIGURES 125. Pseudostaurosira katharinae Van de Vijver &amp; C.E.Wetzel sp. nov. LM and SEM taken from the holotype sample (BR- 4850, Bosbeek, Maaseik, Belgium). 12. LM pictures of two connected frustules in girdle view. 317. LM pictures of valves in valve face view in decreasing length. 1819 SEM external view of a complete frustule in girdle view showing the girdle structure, the large mantle with the mantle plaques and the apical depression (white arrow). 2022. SEM external view three valves showing the large sternum, the spine structure, the large apical pore fields and the areolae decreasing in diameter towards the sternum. Note the circular series of small siliceous papillae around the areolae and the spines. 23. SEM external detail of the valve apex with the apical pore field. 24. SEM external detail of the areolae and the spines. 25. SEM internal view of a complete valve. Scale bars: 10 μm (117); 1 μm (1825)." figureDoi="http://doi.org/10.5281/zenodo.14515991" httpUri="https://zenodo.org/record/14515991/files/figure.png" pageId="1" pageNumber="50">Figs 1819</figureCitation>
). Girdle composed of several plain, open, ligulate copulae, each bearing a thin siliceous ridge (
<figureCitation id="D0E0D3857D6DF124FA93F93406E1F96D" box="[1306,1439,1696,1722]" captionStart="FIGURES 125" captionStartId="2.[136,248,1848,1870]" captionTargetBox="[193,1394,187,1821]" captionTargetId="figure-25@2.[193,1394,187,1821]" captionTargetPageId="2" captionText="FIGURES 125. Pseudostaurosira katharinae Van de Vijver &amp; C.E.Wetzel sp. nov. LM and SEM taken from the holotype sample (BR- 4850, Bosbeek, Maaseik, Belgium). 12. LM pictures of two connected frustules in girdle view. 317. LM pictures of valves in valve face view in decreasing length. 1819 SEM external view of a complete frustule in girdle view showing the girdle structure, the large mantle with the mantle plaques and the apical depression (white arrow). 2022. SEM external view three valves showing the large sternum, the spine structure, the large apical pore fields and the areolae decreasing in diameter towards the sternum. Note the circular series of small siliceous papillae around the areolae and the spines. 23. SEM external detail of the valve apex with the apical pore field. 24. SEM external detail of the areolae and the spines. 25. SEM internal view of a complete valve. Scale bars: 10 μm (117); 1 μm (1825)." figureDoi="http://doi.org/10.5281/zenodo.14515991" httpUri="https://zenodo.org/record/14515991/files/figure.png" pageId="1" pageNumber="50">Figs 1819</figureCitation>
). Valvocopula largest, plain (
<figureCitation id="D0E0D3857D6DF124FE33F9500143F909" box="[442,573,1732,1758]" captionStart="FIGURES 125" captionStartId="2.[136,248,1848,1870]" captionTargetBox="[193,1394,187,1821]" captionTargetId="figure-25@2.[193,1394,187,1821]" captionTargetPageId="2" captionText="FIGURES 125. Pseudostaurosira katharinae Van de Vijver &amp; C.E.Wetzel sp. nov. LM and SEM taken from the holotype sample (BR- 4850, Bosbeek, Maaseik, Belgium). 12. LM pictures of two connected frustules in girdle view. 317. LM pictures of valves in valve face view in decreasing length. 1819 SEM external view of a complete frustule in girdle view showing the girdle structure, the large mantle with the mantle plaques and the apical depression (white arrow). 2022. SEM external view three valves showing the large sternum, the spine structure, the large apical pore fields and the areolae decreasing in diameter towards the sternum. Note the circular series of small siliceous papillae around the areolae and the spines. 23. SEM external detail of the valve apex with the apical pore field. 24. SEM external detail of the areolae and the spines. 25. SEM internal view of a complete valve. Scale bars: 10 μm (117); 1 μm (1825)." figureDoi="http://doi.org/10.5281/zenodo.14515991" httpUri="https://zenodo.org/record/14515991/files/figure.png" pageId="1" pageNumber="50">Figs 1819</figureCitation>
). Most copulae fracted (
<figureCitation id="D0E0D3857D6DF124FCC5F95000B5F909" box="[844,971,1732,1758]" captionStart="FIGURES 125" captionStartId="2.[136,248,1848,1870]" captionTargetBox="[193,1394,187,1821]" captionTargetId="figure-25@2.[193,1394,187,1821]" captionTargetPageId="2" captionText="FIGURES 125. Pseudostaurosira katharinae Van de Vijver &amp; C.E.Wetzel sp. nov. LM and SEM taken from the holotype sample (BR- 4850, Bosbeek, Maaseik, Belgium). 12. LM pictures of two connected frustules in girdle view. 317. LM pictures of valves in valve face view in decreasing length. 1819 SEM external view of a complete frustule in girdle view showing the girdle structure, the large mantle with the mantle plaques and the apical depression (white arrow). 2022. SEM external view three valves showing the large sternum, the spine structure, the large apical pore fields and the areolae decreasing in diameter towards the sternum. Note the circular series of small siliceous papillae around the areolae and the spines. 23. SEM external detail of the valve apex with the apical pore field. 24. SEM external detail of the areolae and the spines. 25. SEM internal view of a complete valve. Scale bars: 10 μm (117); 1 μm (1825)." figureDoi="http://doi.org/10.5281/zenodo.14515991" httpUri="https://zenodo.org/record/14515991/files/figure.png" pageId="1" pageNumber="50">Figs 18, 19</figureCitation>
&amp;
<figureCitation id="D0E0D3857D6DF124FC66F9500773F909" box="[1007,1037,1732,1758]" captionStart="FIGURES 2627" captionStartId="3.[136,248,1691,1713]" captionTargetBox="[151,1436,1062,1667]" captionTargetId="figure-456@3.[151,1436,1062,1667]" captionTargetPageId="3" captionText="FIGURES 2627. Pseudostaurosira katharinae Van de Vijver &amp; C.E.Wetzel sp. nov. Specimens from France (Mare à Goriaux). SEM external view of a complete frustules in girdle view. Fig. 26: Detail showing the fracted girdle bands (white arrow); mantle plates of reduced size. Fig. 27: Open valvocopulae with fimbriate girdle elements. Serrate spines. Scale bars: 4 μm (26); 5 μm (27)." figureDoi="http://doi.org/10.5281/zenodo.14515993" httpUri="https://zenodo.org/record/14515993/files/figure.png" pageId="1" pageNumber="50">26</figureCitation>
, arrows). Valves lanceolate to linearlanceolate in larger specimens, becoming more elliptic-lanceolate to elliptic in smallest valves (
<figureCitation id="D0E0D3857D6DF124FB54F97C062BF8D5" box="[1245,1365,1768,1794]" captionStart="FIGURES 125" captionStartId="2.[136,248,1848,1870]" captionTargetBox="[193,1394,187,1821]" captionTargetId="figure-25@2.[193,1394,187,1821]" captionTargetPageId="2" captionText="FIGURES 125. Pseudostaurosira katharinae Van de Vijver &amp; C.E.Wetzel sp. nov. LM and SEM taken from the holotype sample (BR- 4850, Bosbeek, Maaseik, Belgium). 12. LM pictures of two connected frustules in girdle view. 317. LM pictures of valves in valve face view in decreasing length. 1819 SEM external view of a complete frustule in girdle view showing the girdle structure, the large mantle with the mantle plaques and the apical depression (white arrow). 2022. SEM external view three valves showing the large sternum, the spine structure, the large apical pore fields and the areolae decreasing in diameter towards the sternum. Note the circular series of small siliceous papillae around the areolae and the spines. 23. SEM external detail of the valve apex with the apical pore field. 24. SEM external detail of the areolae and the spines. 25. SEM internal view of a complete valve. Scale bars: 10 μm (117); 1 μm (1825)." figureDoi="http://doi.org/10.5281/zenodo.14515991" httpUri="https://zenodo.org/record/14515991/files/figure.png" pageId="1" pageNumber="50">Figs 317</figureCitation>
). Valve margins convex to weakly convex, not linear. Apices broadly to cuneately rounded, rarely weakly protracted. Usually, one apex slightly depressed (
<figureCitation id="D0E0D3857D6DF124FE50F8A40151F89D" box="[473,559,1840,1866]" captionStart="FIGURES 125" captionStartId="2.[136,248,1848,1870]" captionTargetBox="[193,1394,187,1821]" captionTargetId="figure-25@2.[193,1394,187,1821]" captionTargetPageId="2" captionText="FIGURES 125. Pseudostaurosira katharinae Van de Vijver &amp; C.E.Wetzel sp. nov. LM and SEM taken from the holotype sample (BR- 4850, Bosbeek, Maaseik, Belgium). 12. LM pictures of two connected frustules in girdle view. 317. LM pictures of valves in valve face view in decreasing length. 1819 SEM external view of a complete frustule in girdle view showing the girdle structure, the large mantle with the mantle plaques and the apical depression (white arrow). 2022. SEM external view three valves showing the large sternum, the spine structure, the large apical pore fields and the areolae decreasing in diameter towards the sternum. Note the circular series of small siliceous papillae around the areolae and the spines. 23. SEM external detail of the valve apex with the apical pore field. 24. SEM external detail of the areolae and the spines. 25. SEM internal view of a complete valve. Scale bars: 10 μm (117); 1 μm (1825)." figureDoi="http://doi.org/10.5281/zenodo.14515991" httpUri="https://zenodo.org/record/14515991/files/figure.png" pageId="1" pageNumber="50">Fig. 19</figureCitation>
, white arrow). Valve dimensions (n=30): valve length 915 μm, valve width 3.54.5 μm. Sternum broad, lanceolate, max width 1.21.8 µm. Occasionally sternum narrow but abruptly widening forming a rounded central area (
<figureCitation id="D0E0D3857D6DF124FE70F8EC0100F845" box="[505,638,1912,1938]" captionStart="FIGURES 125" captionStartId="2.[136,248,1848,1870]" captionTargetBox="[193,1394,187,1821]" captionTargetId="figure-25@2.[193,1394,187,1821]" captionTargetPageId="2" captionText="FIGURES 125. Pseudostaurosira katharinae Van de Vijver &amp; C.E.Wetzel sp. nov. LM and SEM taken from the holotype sample (BR- 4850, Bosbeek, Maaseik, Belgium). 12. LM pictures of two connected frustules in girdle view. 317. LM pictures of valves in valve face view in decreasing length. 1819 SEM external view of a complete frustule in girdle view showing the girdle structure, the large mantle with the mantle plaques and the apical depression (white arrow). 2022. SEM external view three valves showing the large sternum, the spine structure, the large apical pore fields and the areolae decreasing in diameter towards the sternum. Note the circular series of small siliceous papillae around the areolae and the spines. 23. SEM external detail of the valve apex with the apical pore field. 24. SEM external detail of the areolae and the spines. 25. SEM internal view of a complete valve. Scale bars: 10 μm (117); 1 μm (1825)." figureDoi="http://doi.org/10.5281/zenodo.14515991" httpUri="https://zenodo.org/record/14515991/files/figure.png" pageId="1" pageNumber="50">Figs 11, 13</figureCitation>
). Striae uniseriate, weakly radiate, irregularly shortened throughout the entire valve length,
<quantity id="8F2362E57D6DF124FEE0F80802B3F861" box="[361,461,1948,1974]" metricMagnitude="-1" metricUnit="m" metricValue="3.81" metricValueMax="4.064" metricValueMin="3.556" pageId="1" pageNumber="50" unit="in" value="15.0" valueMax="16.0" valueMin="14.0">1416 in</quantity>
10 μm, composed of 13 areolae on valve face (
<figureCitation id="D0E0D3857D6DF124FC7EF8080705F861" box="[1015,1147,1948,1974]" captionStart="FIGURES 125" captionStartId="2.[136,248,1848,1870]" captionTargetBox="[193,1394,187,1821]" captionTargetId="figure-25@2.[193,1394,187,1821]" captionTargetPageId="2" captionText="FIGURES 125. Pseudostaurosira katharinae Van de Vijver &amp; C.E.Wetzel sp. nov. LM and SEM taken from the holotype sample (BR- 4850, Bosbeek, Maaseik, Belgium). 12. LM pictures of two connected frustules in girdle view. 317. LM pictures of valves in valve face view in decreasing length. 1819 SEM external view of a complete frustule in girdle view showing the girdle structure, the large mantle with the mantle plaques and the apical depression (white arrow). 2022. SEM external view three valves showing the large sternum, the spine structure, the large apical pore fields and the areolae decreasing in diameter towards the sternum. Note the circular series of small siliceous papillae around the areolae and the spines. 23. SEM external detail of the valve apex with the apical pore field. 24. SEM external detail of the areolae and the spines. 25. SEM internal view of a complete valve. Scale bars: 10 μm (117); 1 μm (1825)." figureDoi="http://doi.org/10.5281/zenodo.14515991" httpUri="https://zenodo.org/record/14515991/files/figure.png" pageId="1" pageNumber="50">Figs 2022</figureCitation>
), and 13 areolae on valve mantle (
<figureCitation id="D0E0D3857D6DF124FF61F85402E3F80D" box="[232,413,1984,2010]" captionStart="FIGURES 125" captionStartId="2.[136,248,1848,1870]" captionTargetBox="[193,1394,187,1821]" captionTargetId="figure-25@2.[193,1394,187,1821]" captionTargetPageId="2" captionText="FIGURES 125. Pseudostaurosira katharinae Van de Vijver &amp; C.E.Wetzel sp. nov. LM and SEM taken from the holotype sample (BR- 4850, Bosbeek, Maaseik, Belgium). 12. LM pictures of two connected frustules in girdle view. 317. LM pictures of valves in valve face view in decreasing length. 1819 SEM external view of a complete frustule in girdle view showing the girdle structure, the large mantle with the mantle plaques and the apical depression (white arrow). 2022. SEM external view three valves showing the large sternum, the spine structure, the large apical pore fields and the areolae decreasing in diameter towards the sternum. Note the circular series of small siliceous papillae around the areolae and the spines. 23. SEM external detail of the valve apex with the apical pore field. 24. SEM external detail of the areolae and the spines. 25. SEM internal view of a complete valve. Scale bars: 10 μm (117); 1 μm (1825)." figureDoi="http://doi.org/10.5281/zenodo.14515991" httpUri="https://zenodo.org/record/14515991/files/figure.png" pageId="1" pageNumber="50">Figs 1819, 21</figureCitation>
). Areolae at valve face/mantle junction markedly larger, decreasing in diameter towards sternum (
<figureCitation id="D0E0D3857D6DF124FF79F870020CF829" box="[240,370,2020,2046]" captionStart="FIGURES 125" captionStartId="2.[136,248,1848,1870]" captionTargetBox="[193,1394,187,1821]" captionTargetId="figure-25@2.[193,1394,187,1821]" captionTargetPageId="2" captionText="FIGURES 125. Pseudostaurosira katharinae Van de Vijver &amp; C.E.Wetzel sp. nov. LM and SEM taken from the holotype sample (BR- 4850, Bosbeek, Maaseik, Belgium). 12. LM pictures of two connected frustules in girdle view. 317. LM pictures of valves in valve face view in decreasing length. 1819 SEM external view of a complete frustule in girdle view showing the girdle structure, the large mantle with the mantle plaques and the apical depression (white arrow). 2022. SEM external view three valves showing the large sternum, the spine structure, the large apical pore fields and the areolae decreasing in diameter towards the sternum. Note the circular series of small siliceous papillae around the areolae and the spines. 23. SEM external detail of the valve apex with the apical pore field. 24. SEM external detail of the areolae and the spines. 25. SEM internal view of a complete valve. Scale bars: 10 μm (117); 1 μm (1825)." figureDoi="http://doi.org/10.5281/zenodo.14515991" httpUri="https://zenodo.org/record/14515991/files/figure.png" pageId="1" pageNumber="50">Figs 2022</figureCitation>
). Mantle areolae separated from those on valve face by relatively long spines (
<figureCitation id="D0E0D3857D6DF124FB46F8700631F828" box="[1231,1359,2020,2047]" captionStart="FIGURES 125" captionStartId="2.[136,248,1848,1870]" captionTargetBox="[193,1394,187,1821]" captionTargetId="figure-25@2.[193,1394,187,1821]" captionTargetPageId="2" captionText="FIGURES 125. Pseudostaurosira katharinae Van de Vijver &amp; C.E.Wetzel sp. nov. LM and SEM taken from the holotype sample (BR- 4850, Bosbeek, Maaseik, Belgium). 12. LM pictures of two connected frustules in girdle view. 317. LM pictures of valves in valve face view in decreasing length. 1819 SEM external view of a complete frustule in girdle view showing the girdle structure, the large mantle with the mantle plaques and the apical depression (white arrow). 2022. SEM external view three valves showing the large sternum, the spine structure, the large apical pore fields and the areolae decreasing in diameter towards the sternum. Note the circular series of small siliceous papillae around the areolae and the spines. 23. SEM external detail of the valve apex with the apical pore field. 24. SEM external detail of the areolae and the spines. 25. SEM internal view of a complete valve. Scale bars: 10 μm (117); 1 μm (1825)." figureDoi="http://doi.org/10.5281/zenodo.14515991" httpUri="https://zenodo.org/record/14515991/files/figure.png" pageId="1" pageNumber="50">Figs 22, 25</figureCitation>
). Spines and areolae on both mantle and valve face surrounded by small siliceous papillae, arranged in circles (
<figureCitation id="D0E0D3857D6DF124FA90F79C06E1F7F5" box="[1305,1439,2056,2082]" captionStart="FIGURES 125" captionStartId="2.[136,248,1848,1870]" captionTargetBox="[193,1394,187,1821]" captionTargetId="figure-25@2.[193,1394,187,1821]" captionTargetPageId="2" captionText="FIGURES 125. Pseudostaurosira katharinae Van de Vijver &amp; C.E.Wetzel sp. nov. LM and SEM taken from the holotype sample (BR- 4850, Bosbeek, Maaseik, Belgium). 12. LM pictures of two connected frustules in girdle view. 317. LM pictures of valves in valve face view in decreasing length. 1819 SEM external view of a complete frustule in girdle view showing the girdle structure, the large mantle with the mantle plaques and the apical depression (white arrow). 2022. SEM external view three valves showing the large sternum, the spine structure, the large apical pore fields and the areolae decreasing in diameter towards the sternum. Note the circular series of small siliceous papillae around the areolae and the spines. 23. SEM external detail of the valve apex with the apical pore field. 24. SEM external detail of the areolae and the spines. 25. SEM internal view of a complete valve. Scale bars: 10 μm (117); 1 μm (1825)." figureDoi="http://doi.org/10.5281/zenodo.14515991" httpUri="https://zenodo.org/record/14515991/files/figure.png" pageId="1" pageNumber="50">Figs 21, 24</figureCitation>
). Apical pore fields present on both apices, large, composed of several rows of pores located in linear depressions between raised small siliceous papillae (
<figureCitation id="D0E0D3857D6FF126FDDCFF5601D2FF0B" box="[597,684,194,220]" captionStart="FIGURES 125" captionStartId="2.[136,248,1848,1870]" captionTargetBox="[193,1394,187,1821]" captionTargetId="figure-25@2.[193,1394,187,1821]" captionTargetPageId="2" captionText="FIGURES 125. Pseudostaurosira katharinae Van de Vijver &amp; C.E.Wetzel sp. nov. LM and SEM taken from the holotype sample (BR- 4850, Bosbeek, Maaseik, Belgium). 12. LM pictures of two connected frustules in girdle view. 317. LM pictures of valves in valve face view in decreasing length. 1819 SEM external view of a complete frustule in girdle view showing the girdle structure, the large mantle with the mantle plaques and the apical depression (white arrow). 2022. SEM external view three valves showing the large sternum, the spine structure, the large apical pore fields and the areolae decreasing in diameter towards the sternum. Note the circular series of small siliceous papillae around the areolae and the spines. 23. SEM external detail of the valve apex with the apical pore field. 24. SEM external detail of the areolae and the spines. 25. SEM internal view of a complete valve. Scale bars: 10 μm (117); 1 μm (1825)." figureDoi="http://doi.org/10.5281/zenodo.14515991" httpUri="https://zenodo.org/record/14515991/files/figure.png" pageId="3" pageNumber="52">Fig. 23</figureCitation>
). Internally, areolae located each in a single depression covered by rounded volae (
<figureCitation id="D0E0D3857D6FF126FEBEFF7202F5FED6" box="[311,395,230,257]" captionStart="FIGURES 125" captionStartId="2.[136,248,1848,1870]" captionTargetBox="[193,1394,187,1821]" captionTargetId="figure-25@2.[193,1394,187,1821]" captionTargetPageId="2" captionText="FIGURES 125. Pseudostaurosira katharinae Van de Vijver &amp; C.E.Wetzel sp. nov. LM and SEM taken from the holotype sample (BR- 4850, Bosbeek, Maaseik, Belgium). 12. LM pictures of two connected frustules in girdle view. 317. LM pictures of valves in valve face view in decreasing length. 1819 SEM external view of a complete frustule in girdle view showing the girdle structure, the large mantle with the mantle plaques and the apical depression (white arrow). 2022. SEM external view three valves showing the large sternum, the spine structure, the large apical pore fields and the areolae decreasing in diameter towards the sternum. Note the circular series of small siliceous papillae around the areolae and the spines. 23. SEM external detail of the valve apex with the apical pore field. 24. SEM external detail of the areolae and the spines. 25. SEM internal view of a complete valve. Scale bars: 10 μm (117); 1 μm (1825)." figureDoi="http://doi.org/10.5281/zenodo.14515991" httpUri="https://zenodo.org/record/14515991/files/figure.png" pageId="3" pageNumber="52">Fig. 25</figureCitation>
).
</paragraph>
</subSubSection>
<caption id="1CA49F887D6EF127FF01F8AC066FF7F1" ID-DOI="http://doi.org/10.5281/zenodo.14515991" ID-Zenodo-Dep="14515991" httpUri="https://zenodo.org/record/14515991/files/figure.png" pageId="2" pageNumber="51" startId="2.[136,248,1848,1870]" targetBox="[193,1394,187,1821]" targetPageId="2" targetType="figure">
<paragraph id="4864CF007D6EF127FF01F8AC066FF7F1" blockId="2.[136,1451,1848,2086]" pageId="2" pageNumber="51">
<emphasis id="7AAF13127D6EF127FF01F8AC024BF89A" bold="true" box="[136,309,1848,1870]" pageId="2" pageNumber="51">FIGURES 125.</emphasis>
<taxonomicName id="8FDBB4837D6EF127FEB2F8AC0018F899" authority="Van de Vijver &amp; C.E.Wetzel" authorityName="Van de Vijver &amp; C. E. Wetzel" authorityYear="2024" box="[315,870,1848,1870]" class="Bacillariophyceae" family="Fragilariaceae" genus="Pseudostaurosira" higherTaxonomySource="GBIF" kingdom="Chromista" order="Fragilariales" pageId="2" pageNumber="51" phylum="Ochrophyta" rank="species" species="katharinae" status="sp. nov.">
<emphasis id="7AAF13127D6EF127FEB2F8AC012FF89A" box="[315,593,1848,1869]" italics="true" pageId="2" pageNumber="51">Pseudostaurosira katharinae</emphasis>
Van de Vijver &amp; C.E.Wetzel
</taxonomicName>
<emphasis id="7AAF13127D6EF127FCE5F8AD00C8F899" box="[876,950,1849,1870]" italics="true" pageId="2" pageNumber="51">
<taxonomicNameLabel id="619CAE697D6EF127FCE5F8AD00C8F899" box="[876,950,1849,1870]" pageId="2" pageNumber="51" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
LM and SEM taken from the holotype sample (BR- 4850, Bosbeek, Maaseik, Belgium). 12. LM pictures of two connected frustules in girdle view. 317. LM pictures of valves in valve face view in decreasing length. 1819 SEM external view of a complete frustule in girdle view showing the girdle structure, the large mantle with the mantle plaques and the apical depression (white arrow). 2022. SEM external view three valves showing the large sternum, the spine structure, the large apical pore fields and the areolae decreasing in diameter towards the sternum. Note the circular series of small siliceous papillae around the areolae and the spines. 23. SEM external detail of the valve apex with the apical pore field. 24. SEM external detail of the areolae and the spines. 25. SEM internal view of a complete valve. Scale bars: 10 μm (117); 1 μm (1825).
</paragraph>
</caption>
<subSubSection id="00C19C8B7D6FF126FF34FE9E0034FE58" pageId="3" pageNumber="52" type="materials_examined">
<paragraph id="4864CF007D6FF126FF34FE9E070CFEBC" blockId="3.[136,1452,158,1038]" pageId="3" pageNumber="52">
<emphasis id="7AAF13127D6FF126FF34FE9E0260FEF3" bold="true" box="[189,286,266,292]" pageId="3" pageNumber="52">Type:—</emphasis>
<collectingCountry id="30CC8F907D6FF126FE94FE9E02DEFEF3" box="[285,416,266,292]" name="Belgium" pageId="3" pageNumber="52">BELGIUM</collectingCountry>
.
<collectingRegion id="8A1F01E27D6FF126FE3AFE9E0168FEF3" box="[435,534,266,292]" country="Belgium" name="Vlaanderen" pageId="3" pageNumber="52">Flanders</collectingRegion>
, Province of Limburg, Maaseik, Bosbeek, sample
<collectionCode id="2ECA57C57D6FF126FBF6FE9E07BCFEF3" box="[1151,1218,266,292]" country="Canada" httpUri="http://biocol.org/urn:lsid:biocol.org:col:15304" lsid="urn:lsid:biocol.org:col:15304" name="Algonquin Provincial Park" pageId="3" pageNumber="52" type="Herbarium">APM</collectionCode>
21-91,
<geoCoordinate id="2DEFA9C77D6FF126FA9AFE9D06D9FEF3" box="[1299,1447,265,292]" degrees="51" direction="north" minutes="5.6348" orientation="latitude" pageId="3" pageNumber="52" precision="1" value="51.093914">51°5.6348N</geoCoordinate>
,
<geoCoordinate id="2DEFA9C77D6FF126FF01FEB90277FE9F" box="[136,265,301,328]" degrees="5" direction="east" minutes="45.894" orientation="longitude" pageId="3" pageNumber="52" precision="1" value="5.7649">5°45.894E</geoCoordinate>
, coll. date
<date id="3C65E9C07D6FF126FE18FEB90153FE90" box="[401,557,301,328]" pageId="3" pageNumber="52" value="2021-06-25">25 Jun. 2021</date>
, leg. Vlaamse Milieu maatschappij (
<collectionCode id="2ECA57C57D6FF126FC53FEB9075DFE90" box="[986,1059,301,327]" country="USA" httpUri="http://grbio.org/cool/xptj-nxev" name="Vanderbilt Marine Museum" pageId="3" pageNumber="52">VMM</collectionCode>
) (
<typeStatus id="976071A27D6FF126FBB4FEB907DFFE90" box="[1085,1185,301,327]" pageId="3" pageNumber="52" type="holotype">holotype</typeStatus>
slide BR-4850,
<figureCitation id="D0E0D3857D6FF126FAEFFEB906D5FE9F" box="[1382,1451,301,328]" captionStart="FIGURES 125" captionStartId="2.[136,248,1848,1870]" captionTargetBox="[193,1394,187,1821]" captionTargetId="figure-25@2.[193,1394,187,1821]" captionTargetPageId="2" captionText="FIGURES 125. Pseudostaurosira katharinae Van de Vijver &amp; C.E.Wetzel sp. nov. LM and SEM taken from the holotype sample (BR- 4850, Bosbeek, Maaseik, Belgium). 12. LM pictures of two connected frustules in girdle view. 317. LM pictures of valves in valve face view in decreasing length. 1819 SEM external view of a complete frustule in girdle view showing the girdle structure, the large mantle with the mantle plaques and the apical depression (white arrow). 2022. SEM external view three valves showing the large sternum, the spine structure, the large apical pore fields and the areolae decreasing in diameter towards the sternum. Note the circular series of small siliceous papillae around the areolae and the spines. 23. SEM external detail of the valve apex with the apical pore field. 24. SEM external detail of the areolae and the spines. 25. SEM internal view of a complete valve. Scale bars: 10 μm (117); 1 μm (1825)." figureDoi="http://doi.org/10.5281/zenodo.14515991" httpUri="https://zenodo.org/record/14515991/files/figure.png" pageId="3" pageNumber="52">Fig. 5</figureCitation>
represents the
<typeStatus id="976071A27D6FF126FEA3FEC502F1FEBC" box="[298,399,337,363]" pageId="3" pageNumber="52" type="holotype">holotype</typeStatus>
,
<typeStatus id="976071A27D6FF126FE13FEC50295FEBC" box="[410,491,337,363]" pageId="3" pageNumber="52" type="isotype">isotype</typeStatus>
slide
<quantity id="8F2362E57D6FF126FDA7FEC5010BFEBC" box="[558,629,337,363]" metricMagnitude="1" metricUnit="m" metricValue="1.13792" pageId="3" pageNumber="52" unit="in" value="448.0">448 in</quantity>
Collection University of Antwerp, Belgium).
</paragraph>
<paragraph id="4864CF007D6FF126FF34FEE00034FE58" blockId="3.[136,1452,158,1038]" box="[189,842,372,399]" pageId="3" pageNumber="52">
<emphasis id="7AAF13127D6FF126FF34FEE00280FE59" bold="true" box="[189,510,372,398]" pageId="3" pageNumber="52">PhycoBank registration:—</emphasis>
http://phycobank.org/104825.
</paragraph>
</subSubSection>
<subSubSection id="00C19C8B7D6FF126FF34FE0C063BFE66" box="[189,1349,407,434]" pageId="3" pageNumber="52" type="etymology">
<paragraph id="4864CF007D6FF126FF34FE0C063BFE66" blockId="3.[136,1452,158,1038]" box="[189,1349,407,434]" pageId="3" pageNumber="52">
<emphasis id="7AAF13127D6FF126FF34FE0C021AFE65" bold="true" box="[189,356,408,434]" pageId="3" pageNumber="52">Etymology:—</emphasis>
The new species is named after
<taxonomicName id="8FDBB4837D6FF126FD43FE0300EFFE66" authority="Wilfert" authorityName="Wilfert" box="[714,913,407,433]" class="Polyplacophora" family="Mopaliidae" genus="Katharina" kingdom="Animalia" order="Chitonida" pageId="3" pageNumber="52" phylum="Mollusca" rank="genus">Katharina Wilfert</taxonomicName>
, oldest stepdaughter of the first author.
</paragraph>
</subSubSection>
<subSubSection id="00C19C8B7D6FF126FF34FE2F063BFBD9" pageId="3" pageNumber="52" type="biology_ecology">
<paragraph id="4864CF007D6FF126FF34FE2F0278FC3E" blockId="3.[136,1452,158,1038]" pageId="3" pageNumber="52">
<emphasis id="7AAF13127D6FF126FF34FE2F0177FE02" bold="true" box="[189,521,443,469]" pageId="3" pageNumber="52">Ecology and distribution:—</emphasis>
<taxonomicName id="8FDBB4837D6FF126FD86FE2F002DFE02" authorityName="Van de Vijver &amp; C. E. Wetzel" authorityYear="2024" box="[527,851,443,469]" class="Bacillariophyceae" family="Fragilariaceae" genus="Pseudostaurosira" higherTaxonomySource="GBIF" kingdom="Chromista" order="Fragilariales" pageId="3" pageNumber="52" phylum="Ochrophyta" rank="species" species="katharinae">
<emphasis id="7AAF13127D6FF126FD86FE2F002DFE02" box="[527,851,443,469]" italics="true" pageId="3" pageNumber="52">Pseudostaurosira katharinae</emphasis>
</taxonomicName>
was described from a small river near Maaseik, in the northeastern part of
<collectingCountry id="30CC8F907D6FF126FEE3FE4A02B0FE2F" box="[362,462,478,504]" name="Belgium" pageId="3" pageNumber="52">Belgium</collectingCountry>
. The
<typeStatus id="976071A27D6FF126FD83FE4B0144FE2E" box="[522,570,479,505]" pageId="3" pageNumber="52">type</typeStatus>
locality had an almost circumneutral pH (6.97.3), a moderate conductivity (&gt; 200 µS/cm), and higher sulphate (
<quantity id="8F2362E57D6FF126FD80FD960103FDCB" box="[521,637,514,540]" metricMagnitude="-5" metricUnit="kg" metricValue="2.1" metricValueMax="3.0" metricValueMin="1.2" pageId="3" pageNumber="52" unit="mg" value="21.0" valueMax="30.0" valueMin="12.0">1230 mg</quantity>
/l) and nitrate levels (
<quantity id="8F2362E57D6FF126FCE7FD96008CFDCB" box="[878,1010,514,540]" metricMagnitude="-6" metricUnit="kg" metricValue="2.3499999999999996" metricValueMax="3.3" metricValueMin="1.4" pageId="3" pageNumber="52" unit="mg" value="2.3499999999999996" valueMax="3.3" valueMin="1.4">1.43.3 mg</quantity>
/l). The associated flora was dominated by several small-celled araphid species such as, apart from
<taxonomicName id="8FDBB4837D6FF126FCC9FDB200A6FDE8" authorityName="Van de Vijver &amp; C. E. Wetzel" authorityYear="2024" box="[832,984,549,575]" class="Bacillariophyceae" family="Fragilariaceae" genus="Pseudostaurosira" higherTaxonomySource="GBIF" kingdom="Chromista" order="Fragilariales" pageId="3" pageNumber="52" phylum="Ochrophyta" rank="species" species="katharinae">
<emphasis id="7AAF13127D6FF126FCC9FDB200A6FDE8" box="[832,984,549,575]" italics="true" pageId="3" pageNumber="52">P. katharinae</emphasis>
</taxonomicName>
, also larger populations of
<taxonomicName id="8FDBB4837D6FF126FA92FDB1012AFDB4" authority="Van de Vijver &amp; V. Peeters" authorityName="Van de Vijver &amp; V. Peeters" class="Bacillariophyceae" family="Fragilariaceae" genus="Staurosirella" higherTaxonomySource="GBIF" kingdom="Chromista" order="Fragilariales" pageId="3" pageNumber="52" phylum="Ochrophyta" rank="species" species="marginostriata">
<emphasis id="7AAF13127D6FF126FA92FDB10251FDB4" italics="true" pageId="3" pageNumber="52">Staurosirella marginostriata</emphasis>
Van de Vijver &amp; V.Peeters
</taxonomicName>
(in
<bibRefCitation id="2C4AB2F17D6FF126FDF7FDDD00B7FDB4" author="Van de Vijver, B. &amp; Peeters, V. &amp; Ballings, P. &amp; de Haan, M." box="[638,969,585,611]" pageId="3" pageNumber="52" pagination="139 - 160" refId="ref4775" refString="Van de Vijver, B., Peeters, V., Ballings, P. &amp; de Haan, M. (2024) Five new species in the genus Staurosirella (Bacillariophyta) from European freshwater habitats. PhytoKeys 242: 139 - 160. https: // doi. org / 10.3897 / phytokeys. 242.122458" type="journal article" year="2024">
Van de Vijver
<emphasis id="7AAF13127D6FF126FC93FDDE002FFDB4" box="[794,849,585,611]" italics="true" pageId="3" pageNumber="52">et al.</emphasis>
2024: 142
</bibRefCitation>
),
<taxonomicName id="8FDBB4837D6FF126FC55FDDD071FFDB4" box="[988,1121,585,611]" class="Bacillariophyceae" family="Fragilariaceae" genus="Staurosirella" higherTaxonomySource="GBIF" kingdom="Chromista" order="Fragilariales" pageId="3" pageNumber="52" phylum="Ochrophyta" rank="species" species="stoksiana">
<emphasis id="7AAF13127D6FF126FC55FDDD071FFDB4" box="[988,1121,585,611]" italics="true" pageId="3" pageNumber="52">S. stoksiana</emphasis>
</taxonomicName>
,
<taxonomicName id="8FDBB4837D6FF126FBE7FDDD06D2FDB4" box="[1134,1452,585,611]" class="Bacillariophyceae" family="Fragilariaceae" genus="Pseudostaurosira" higherTaxonomySource="GBIF" kingdom="Chromista" order="Fragilariales" pageId="3" pageNumber="52" phylum="Ochrophyta" rank="species" species="alvareziae">
<emphasis id="7AAF13127D6FF126FBE7FDDD06D2FDB4" box="[1134,1452,585,611]" italics="true" pageId="3" pageNumber="52">Pseudostaurosira alvareziae</emphasis>
</taxonomicName>
and
<taxonomicName id="8FDBB4837D6FF126FF3FFDF9022CFD51" authorityName="D.M.Williams &amp; Round" authorityYear="1987" box="[182,338,620,646]" class="Bacillariophyceae" family="Fragilariaceae" genus="Pseudostaurosira" higherTaxonomySource="GBIF" kingdom="Chromista" order="Fragilariales" pageId="3" pageNumber="52" phylum="Ochrophyta" rank="species" species="brevistriata">
<emphasis id="7AAF13127D6FF126FF3FFDF9022CFD51" box="[182,338,620,646]" italics="true" pageId="3" pageNumber="52">P. brevistriata</emphasis>
</taxonomicName>
. Other dominant species in the sample included
<taxonomicName id="8FDBB4837D6FF126FCE1FDF80729FD51" authorityName="Simonsen" authorityYear="1979" box="[872,1111,620,646]" class="Bacillariophyceae" family="Aulacoseiraceae" genus="Aulacoseira" higherTaxonomySource="GBIF" kingdom="Chromista" order="Aulacoseirales" pageId="3" pageNumber="52" phylum="Ochrophyta" rank="species" species="ambigua">
<emphasis id="7AAF13127D6FF126FCE1FDF80729FD51" box="[872,1111,620,646]" italics="true" pageId="3" pageNumber="52">Aulacoseira ambigua</emphasis>
</taxonomicName>
(Grunow in
<bibRefCitation id="2C4AB2F17D6FF126FB6BFDF906D6FD51" author="Van Heurck, H." box="[1250,1448,620,647]" pageId="3" pageNumber="52" refId="ref4834" refString="Van Heurck, H. (1882) Synopsis des Diatomees de Belgique. Atlas. Ducaju et Cie, Anvers, pp. pls LXXVIII - CXXXII." type="book" year="1882">Van Heurck 1882</bibRefCitation>
: pl. 88, figs 1215)
<bibRefCitation id="2C4AB2F17D6FF126FEEEFD040127FD7C" author="Simonsen, R." box="[359,601,656,683]" pageId="3" pageNumber="52" pagination="9 - 71" refId="ref4589" refString="Simonsen, R. (1979) The diatom system: ideas on phylogeny. Bacillaria 2: 9 - 71." type="journal article" year="1979">Simonsen (1979: 56)</bibRefCitation>
,
<taxonomicName id="8FDBB4837D6FF126FDEEFD040675FD7C" authority="(Ehrenberg 1843 b: 415) Simonsen (1979: 58)" authorityName="Simonsen" authorityPageNumber="58" authorityYear="1979" baseAuthorityName="Ehrenberg" baseAuthorityPageNumber="415" baseAuthorityYear="1843" box="[615,1291,656,683]" class="Bacillariophyceae" family="Aulacoseiraceae" genus="Aulacoseira" higherTaxonomySource="GBIF" kingdom="Chromista" order="Aulacoseirales" pageId="3" pageNumber="52" phylum="Ochrophyta" rank="species" species="granulata">
<emphasis id="7AAF13127D6FF126FDEEFD040189FD7D" box="[615,759,656,682]" italics="true" pageId="3" pageNumber="52">A. granulata</emphasis>
(
<bibRefCitation id="2C4AB2F17D6FF126FC83FD040774FD7C" author="Ehrenberg, C. G." box="[778,1034,656,683]" pageId="3" pageNumber="52" pagination="291 - 445" refId="ref3667" refString="Ehrenberg, C. G. (1843 b) Verbreitung und Einfluss des mikroskopischen Lebens in Sud- und Nord-Amerika. Abhandlungen der Koniglichen Akademie der Wissenschaften zu Berlin 1841: 291 - 445." type="journal article" year="1843">Ehrenberg 1843b: 415</bibRefCitation>
)
<bibRefCitation id="2C4AB2F17D6FF126FB92FD040675FD7C" author="Simonsen, R." box="[1051,1291,656,683]" pageId="3" pageNumber="52" pagination="9 - 71" refId="ref4589" refString="Simonsen, R. (1979) The diatom system: ideas on phylogeny. Bacillaria 2: 9 - 71." type="journal article" year="1979">Simonsen (1979: 58)</bibRefCitation>
</taxonomicName>
and
<taxonomicName id="8FDBB4837D6FF126FACFFD040176FD19" authority="Kutzing (1844: 95)" authorityName="Kutzing" authorityPageNumber="95" authorityYear="1844" class="Bacillariophyceae" family="Naviculaceae" genus="Navicula" kingdom="Chromista" order="Naviculales" pageId="3" pageNumber="52" phylum="Ochrophyta" rank="species" species="cryptocephala">
<emphasis id="7AAF13127D6FF126FACFFD040256FD1A" italics="true" pageId="3" pageNumber="52">Navicula cryptocephala</emphasis>
<bibRefCitation id="2C4AB2F17D6FF126FEA6FD270176FD19" author="Kutzing, F. T." box="[303,520,691,718]" pageId="3" pageNumber="52" refId="ref3983" refString="Kutzing, F. T. (1844) Die kieselschaligen Bacillarien oder Diatomeen. W. Kohne, Nordhausen, 144 pp. https: // doi. org / 10.5962 / bhl. title. 64360" type="book" year="1844">Kützing (1844: 95)</bibRefCitation>
</taxonomicName>
, pointing to more meso-eutrophic, alkaline conditions (Lange-Bertalot
<emphasis id="7AAF13127D6FF126FAADFD200623FD1A" box="[1316,1373,691,717]" italics="true" pageId="3" pageNumber="52">et al.</emphasis>
2017). The species has also been found in a French lake (“
<emphasis id="7AAF13127D6FF126FD47FD4C00FAFD26" box="[718,900,727,753]" italics="true" pageId="3" pageNumber="52">Mare à Goriaux</emphasis>
”) (
<figureCitation id="D0E0D3857D6FF126FC23FD43073BFD26" box="[938,1093,727,753]" captionStart="FIGURES 2627" captionStartId="3.[136,248,1691,1713]" captionTargetBox="[151,1436,1062,1667]" captionTargetId="figure-456@3.[151,1436,1062,1667]" captionTargetPageId="3" captionText="FIGURES 2627. Pseudostaurosira katharinae Van de Vijver &amp; C.E.Wetzel sp. nov. Specimens from France (Mare à Goriaux). SEM external view of a complete frustules in girdle view. Fig. 26: Detail showing the fracted girdle bands (white arrow); mantle plates of reduced size. Fig. 27: Open valvocopulae with fimbriate girdle elements. Serrate spines. Scale bars: 4 μm (26); 5 μm (27)." figureDoi="http://doi.org/10.5281/zenodo.14515993" httpUri="https://zenodo.org/record/14515993/files/figure.png" pageId="3" pageNumber="52">Figs 26 &amp; 27</figureCitation>
). The Mare à Goriaux, an intraforest pond, is located within the perimeter of the Regional Natural Park of the Scarpe and Escaut Plains, at the southern edge of the Raismes, St-Amand, and Wallers state forest (
<bibRefCitation id="2C4AB2F17D6FF126FCFCFC8A0745FCEF" author="Marchyllie, M." box="[885,1083,798,824]" pageId="3" pageNumber="52" refId="ref4088" refString="Marchyllie, M. (1992) Reserve biologique domaniale de la Mare a Goriaux: etude des roselieres en vue de leur restrauration et de leur gestion. 101 pp." type="book" year="1992">Marchyllie, 1992</bibRefCitation>
). The pond, formed from mining subsidence caused by the exploitation of the Vicoigne and Arenberg pits, was originally a wetland due to groundwater outcrops. The exploitation of the Arenberg pit caused the most significant collapses, initially creating three ponds that merged around the 1930s to
<taxonomicName id="8FDBB4837D6FF126FE5AFC1C014BFC75" box="[467,565,904,930]" form="the" pageId="3" pageNumber="52" rank="form">form the</taxonomicName>
current Mare à Goriaux (
<bibRefCitation id="2C4AB2F17D6FF126FCD6FC1C0756FC75" author="Marchyllie, M." box="[863,1064,904,930]" pageId="3" pageNumber="52" refId="ref4088" refString="Marchyllie, M. (1992) Reserve biologique domaniale de la Mare a Goriaux: etude des roselieres en vue de leur restrauration et de leur gestion. 101 pp." type="book" year="1992">Marchyllie, 1992</bibRefCitation>
). The high mineral content of the ponds water is largely due to SO
<subScript id="D45FCD457D6FF126FE7EFC2A0281FC1B" attach="left" box="[503,511,958,972]" fontSize="6" pageId="3" pageNumber="52">4</subScript>
<superScript id="BFAE62487D6FF126FE76FC38017AFC6D" attach="right" box="[511,516,940,954]" fontSize="6" pageId="3" pageNumber="52">-</superScript>
ions (
<quantity id="8F2362E57D6FF126FDCEFC3F01B1FC12" box="[583,719,939,966]" metricMagnitude="-4" metricUnit="kg" metricValue="3.53" metricValueMax="7.0" metricValueMin="0.06" pageId="3" pageNumber="52" unit="mg" value="353.0" valueMax="700.0" valueMin="6.0">6 to 700 mg</quantity>
/l),
<superScript id="BFAE62487D6FF126FD78FC3F006FFC6D" attach="left" box="[753,785,939,965]" fontSize="6" pageId="3" pageNumber="52">Cl-</superScript>
ions (
<quantity id="8F2362E57D6FF126FCDDFC3F00D2FC12" box="[852,940,939,966]" metricMagnitude="-4" metricUnit="kg" metricValue="1.45" pageId="3" pageNumber="52" unit="mg" value="145.0">145 mg</quantity>
/l), as well as Na
<superScript id="BFAE62487D6FF126FBE9FC380717FC6D" attach="left" box="[1120,1129,940,954]" fontSize="6" pageId="3" pageNumber="52">+</superScript>
ions (
<quantity id="8F2362E57D6FF126FB25FC3F067CFC12" box="[1196,1282,939,966]" metricMagnitude="-4" metricUnit="kg" metricValue="5.6" pageId="3" pageNumber="52" unit="mg" value="560.0">560 mg</quantity>
/l) and Ca
<superScript id="BFAE62487D6FF126FAE4FC380608FC6D" attach="left" box="[1389,1398,940,954]" fontSize="6" pageId="3" pageNumber="52">+</superScript>
ions (
<quantity id="8F2362E57D6FF126FF19FC5B0396FC3E" box="[144,232,975,1001]" metricMagnitude="-4" metricUnit="kg" metricValue="1.1" pageId="3" pageNumber="52" unit="mg" value="110.0">110 mg</quantity>
/l).
</paragraph>
<paragraph id="4864CF007D6FF126FF34FC60063BFBD9" blockId="3.[136,1452,158,1038]" box="[189,1349,1011,1038]" pageId="3" pageNumber="52">It is likely that the species is more widespread than currently known due to confusion with similar taxa.</paragraph>
</subSubSection>
</treatment>
</document>