187 lines
39 KiB
XML
187 lines
39 KiB
XML
<document id="122DD9940A06406690E8C125E12B7D90" ID-CLB-Dataset="55575" ID-DOI="10.11646/phytotaxa.545.2.5" ID-GBIF-Dataset="e4286da0-e7d7-4939-a8b2-bbad475cee64" ID-ISSN="1179-3163" ID-Zenodo-Dep="6534689" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" checkinTime="1652170744107" checkinUser="plazi" docAuthor="Vijver, Bart Van De" docDate="2022" docId="03BB0646511D0901C887FCC0FB52887F" docLanguage="en" docName="phytotaxa.545.2.5.pdf" docOrigin="Phytotaxa 545 (2)" docSource="http://dx.doi.org/10.11646/phytotaxa.545.2.5" docStyle="DocumentStyle:96748F8F1B6C902996E134952A3A36B9.7:Phytotaxa.2014-.journal_article" docStyleId="96748F8F1B6C902996E134952A3A36B9" docStyleName="Phytotaxa.2014-.journal_article" docStyleVersion="7" docTitle="Staurosirella coutelasiana Van de Vijver 2022, sp. nov." docType="treatment" docVersion="7" lastPageNumber="165" masterDocId="FF827E3E511F0903C80FFFB0FF8F8074" masterDocTitle="Two new Staurosirella species (Staurosiraceae, Bacillariophyta) observed in an historic Rabenhorst sample" masterLastPageNumber="174" masterPageNumber="163" pageNumber="165" updateTime="1699330096898" updateUser="ExternalLinkService" zenodo-license-figures="UNSPECIFIED" zenodo-license-treatments="UNSPECIFIED">
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<mods:title id="76C57A448949F12D2862FE04CA09A06E">Two new Staurosirella species (Staurosiraceae, Bacillariophyta) observed in an historic Rabenhorst sample</mods:title>
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<mods:name id="5DF1C3EA3FC5ED23F4E838B46BBF18F4" type="personal">
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<mods:namePart id="98013C4DA5700AE329B21E84E1F52E13">Vijver, Bart Van De</mods:namePart>
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<mods:affiliation id="11D2C08225D7FFFD1425DEE84C0AFA0B">Meise Botanic Garden, Research Department, Nieuwelaan 38, 1860 Meise, Belgium & University of Antwerp, Department of Biology - ECOSPHERE, Universiteitsplein 1, 2610 Wilrijk, Belgium & bart. vandevijver @ plantentuinmeise. be; https: // orcid. org / 0000 - 0002 - 6244 - 1886</mods:affiliation>
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<mods:nameIdentifier id="E5132332318F7E99A22DB496F61951C8" type="email">bart.vandevijver@plantentuinmeise.be</mods:nameIdentifier>
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<mods:title id="523D54F0EA8FD201F0CC3214AA5B2F18">Phytotaxa</mods:title>
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<mods:date id="918CF503E3896367382DD2FE0A8910C0">2022</mods:date>
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<mods:number id="E36C82675092BF6947BE11BEBAFD4F41">2022-05-10</mods:number>
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<treatment id="03BB0646511D0901C887FCC0FB52887F" ID-DOI="http://doi.org/10.5281/zenodo.6539243" ID-GBIF-Taxon="195298828" ID-Zenodo-Dep="6539243" LSID="urn:lsid:plazi:treatment:03BB0646511D0901C887FCC0FB52887F" httpUri="http://treatment.plazi.org/id/03BB0646511D0901C887FCC0FB52887F" lastPageNumber="165" pageId="2" pageNumber="165">
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<subSubSection id="C308E4DB511D0901C887FCC0FBCA83FF" box="[136,1093,880,907]" pageId="2" pageNumber="165" type="nomenclature">
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<paragraph id="8BADB750511D0901C887FCC0FBCA83FF" blockId="2.[136,1093,880,907]" box="[136,1093,880,907]" pageId="2" pageNumber="165">
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<heading id="D0E5003C511D0901C887FCC0FBCA83FF" box="[136,1093,880,907]" fontSize="11" level="2" pageId="2" pageNumber="165" reason="3">
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<emphasis id="B9666B42511D0901C887FCC0FD3083FE" bold="true" box="[136,703,880,907]" pageId="2" pageNumber="165">
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<taxonomicName id="4C12CCD3511D0901C887FCC0FDEE83FE" authority="Van de Vijver" authorityName="Van de Vijver" authorityYear="2022" box="[136,609,880,907]" class="Bacillariophyceae" family="Fragilariaceae" genus="Staurosirella" higherTaxonomySource="GBIF" kingdom="Chromista" order="Fragilariales" pageId="2" pageNumber="165" phylum="Bacillariophyta" rank="species" species="coutelasiana" status="sp. nov.">
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<emphasis id="B9666B42511D0901C887FCC0FE3983FF" bold="true" box="[136,438,880,907]" italics="true" pageId="2" pageNumber="165">Staurosirella coutelasiana</emphasis>
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Van de Vijver
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</taxonomicName>
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<taxonomicNameLabel id="A255D639511D0901CA67FCC0FD3083FE" box="[616,703,880,906]" pageId="2" pageNumber="165" rank="species">
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<emphasis id="B9666B42511D0901CA67FCC0FD3783FE" bold="true" box="[616,696,880,906]" italics="true" pageId="2" pageNumber="165">sp. nov</emphasis>
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.
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</taxonomicNameLabel>
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</emphasis>
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(LM
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<figureCitation id="1329ABD5511D0901CB0EFCC0FCFC83FE" box="[769,883,880,906]" captionStart="FIGURES 1–68" captionStartId="3.[136,243,1489,1511]" captionTargetBox="[151,1435,187,1462]" captionTargetId="figure-17@3.[151,1435,187,1462]" captionTargetPageId="3" captionText="FIGURES 1–68. Light micrographs of three Staurosirella species observed in Rabenhorst sample 1441. 1–30. Staurosirella coutelasiana Van de Vijver sp. nov. LM views of the population arranged in decreasing length. Fig. 1. represents a frustule in girdle view. 31–51. Staurosirella minutissima Van de Vijver, sp. nov. LM views of the population arranged in decreasing length. Figs 31 and 32 represent frustules in girdle view, either inpairs (31)or solitary (32). 52 represents a possible valvocopula.52–68.Staurosirella neopinnata E.Morales et al. LM views of the population arranged in decreasing length. 68. Represents two frustules in girdle view. Scale bars = 10 µm." figureDoi="http://doi.org/10.5281/zenodo.6534693" httpUri="https://zenodo.org/record/6534693/files/figure.png" pageId="2" pageNumber="165">Figs 1–30</figureCitation>
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, SEM
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<figureCitation id="1329ABD5511D0901CBB0FCC0FBB283FF" box="[959,1085,880,907]" captionStart="FIGURES 69–73" captionStartId="4.[136,243,1930,1952]" captionTargetBox="[164,1423,190,1906]" captionTargetId="figure-22@4.[164,1423,190,1906]" captionTargetPageId="4" captionText="FIGURES 69–73. Staurosirella coutelasiana Van de Vijver sp. nov. SEM images taken from the holotype material (BR-4711, Rabenhorst sample 1441, Casaccio, Switzerland). 69–71. Three external views of an entire valve. Note the presence of the irregular marginal spines and the rather well-developed apical pore field at each apex. The virgae and sternum are clearly raised with the striae as punch-holes. 72. External view of the open valvocopula showing fimbriae. 73. SEM internal view of an entire valve. Scale bars = 10 µm." figureDoi="http://doi.org/10.5281/zenodo.6534695" httpUri="https://zenodo.org/record/6534695/files/figure.png" pageId="2" pageNumber="165">Figs 69–73</figureCitation>
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)
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</heading>
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</paragraph>
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</subSubSection>
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<subSubSection id="C308E4DB511D0901C887FC08FD84862E" pageId="2" pageNumber="165" type="description">
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<paragraph id="8BADB750511D0901C887FC08FE0C84DF" blockId="2.[136,1452,952,2059]" pageId="2" pageNumber="165">
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<emphasis id="B9666B42511D0901C887FC08FEB783A6" bold="true" box="[136,312,952,978]" pageId="2" pageNumber="165">Description:—</emphasis>
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LM (
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<figureCitation id="1329ABD5511D0901C97DFC08FE6B83A6" box="[370,484,952,978]" captionStart="FIGURES 1–68" captionStartId="3.[136,243,1489,1511]" captionTargetBox="[151,1435,187,1462]" captionTargetId="figure-17@3.[151,1435,187,1462]" captionTargetPageId="3" captionText="FIGURES 1–68. Light micrographs of three Staurosirella species observed in Rabenhorst sample 1441. 1–30. Staurosirella coutelasiana Van de Vijver sp. nov. LM views of the population arranged in decreasing length. Fig. 1. represents a frustule in girdle view. 31–51. Staurosirella minutissima Van de Vijver, sp. nov. LM views of the population arranged in decreasing length. Figs 31 and 32 represent frustules in girdle view, either inpairs (31)or solitary (32). 52 represents a possible valvocopula.52–68.Staurosirella neopinnata E.Morales et al. LM views of the population arranged in decreasing length. 68. Represents two frustules in girdle view. Scale bars = 10 µm." figureDoi="http://doi.org/10.5281/zenodo.6534693" httpUri="https://zenodo.org/record/6534693/files/figure.png" pageId="2" pageNumber="165">Figs 1–29</figureCitation>
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(30?)): Frustules in girdle view rectangular, solitary (
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<figureCitation id="1329ABD5511D0901CC45FC08FB0283A6" box="[1098,1165,952,978]" captionStart="FIGURES 1–68" captionStartId="3.[136,243,1489,1511]" captionTargetBox="[151,1435,187,1462]" captionTargetId="figure-17@3.[151,1435,187,1462]" captionTargetPageId="3" captionText="FIGURES 1–68. Light micrographs of three Staurosirella species observed in Rabenhorst sample 1441. 1–30. Staurosirella coutelasiana Van de Vijver sp. nov. LM views of the population arranged in decreasing length. Fig. 1. represents a frustule in girdle view. 31–51. Staurosirella minutissima Van de Vijver, sp. nov. LM views of the population arranged in decreasing length. Figs 31 and 32 represent frustules in girdle view, either inpairs (31)or solitary (32). 52 represents a possible valvocopula.52–68.Staurosirella neopinnata E.Morales et al. LM views of the population arranged in decreasing length. 68. Represents two frustules in girdle view. Scale bars = 10 µm." figureDoi="http://doi.org/10.5281/zenodo.6534693" httpUri="https://zenodo.org/record/6534693/files/figure.png" pageId="2" pageNumber="165">Fig. 1</figureCitation>
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). Colonies not observed. Valves isopolar to occasionally very slightly heteropolar (e.g.
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<figureCitation id="1329ABD5511D0901CB5FFC6CFC5A8382" box="[848,981,988,1014]" captionStart="FIGURES 1–68" captionStartId="3.[136,243,1489,1511]" captionTargetBox="[151,1435,187,1462]" captionTargetId="figure-17@3.[151,1435,187,1462]" captionTargetPageId="3" captionText="FIGURES 1–68. Light micrographs of three Staurosirella species observed in Rabenhorst sample 1441. 1–30. Staurosirella coutelasiana Van de Vijver sp. nov. LM views of the population arranged in decreasing length. Fig. 1. represents a frustule in girdle view. 31–51. Staurosirella minutissima Van de Vijver, sp. nov. LM views of the population arranged in decreasing length. Figs 31 and 32 represent frustules in girdle view, either inpairs (31)or solitary (32). 52 represents a possible valvocopula.52–68.Staurosirella neopinnata E.Morales et al. LM views of the population arranged in decreasing length. 68. Represents two frustules in girdle view. Scale bars = 10 µm." figureDoi="http://doi.org/10.5281/zenodo.6534693" httpUri="https://zenodo.org/record/6534693/files/figure.png" pageId="2" pageNumber="165">Figs 16, 28</figureCitation>
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), linear-lanceolate in larger specimens to lanceolate, occasionally elliptic-lanceolate in smaller valves. Valve outline in larger specimens often more irregular in shape (
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<figureCitation id="1329ABD5511D0901C8F9FB94FE1E844A" box="[246,401,1060,1087]" captionStart="FIGURES 1–68" captionStartId="3.[136,243,1489,1511]" captionTargetBox="[151,1435,187,1462]" captionTargetId="figure-17@3.[151,1435,187,1462]" captionTargetPageId="3" captionText="FIGURES 1–68. Light micrographs of three Staurosirella species observed in Rabenhorst sample 1441. 1–30. Staurosirella coutelasiana Van de Vijver sp. nov. LM views of the population arranged in decreasing length. Fig. 1. represents a frustule in girdle view. 31–51. Staurosirella minutissima Van de Vijver, sp. nov. LM views of the population arranged in decreasing length. Figs 31 and 32 represent frustules in girdle view, either inpairs (31)or solitary (32). 52 represents a possible valvocopula.52–68.Staurosirella neopinnata E.Morales et al. LM views of the population arranged in decreasing length. 68. Represents two frustules in girdle view. Scale bars = 10 µm." figureDoi="http://doi.org/10.5281/zenodo.6534693" httpUri="https://zenodo.org/record/6534693/files/figure.png" pageId="2" pageNumber="165">Figs 4, 5 & 8</figureCitation>
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). Apices broadly rounded, not protracted. Valve dimensions (n=50): valve length 15–35 µm, width 5.0–5.5 µm. Sternum narrow, linear to slightly lanceolate. Striae alternating at both sides of the sternum, parallel to weakly radiate near the valve middle, becoming distinctly more radiate towards the apices,
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<quantity id="4CEA1AB5511D0901CCACFBDCFB7884F2" box="[1187,1271,1132,1158]" metricMagnitude="-1" metricUnit="m" metricValue="2.54" metricValueMax="2.794" metricValueMin="2.286" pageId="2" pageNumber="165" unit="in" value="10.0" valueMax="11.0" valueMin="9.0">9–11 in</quantity>
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10 µm. Areolae not discernible in LM.
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</paragraph>
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<paragraph id="8BADB750511D0901C8B2FB04FE0B859B" blockId="2.[136,1452,952,2059]" pageId="2" pageNumber="165">
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SEM (
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<figureCitation id="1329ABD5511D0901C908FB04FE0384BB" box="[263,396,1204,1231]" captionStart="FIGURES 69–73" captionStartId="4.[136,243,1930,1952]" captionTargetBox="[164,1423,190,1906]" captionTargetId="figure-22@4.[164,1423,190,1906]" captionTargetPageId="4" captionText="FIGURES 69–73. Staurosirella coutelasiana Van de Vijver sp. nov. SEM images taken from the holotype material (BR-4711, Rabenhorst sample 1441, Casaccio, Switzerland). 69–71. Three external views of an entire valve. Note the presence of the irregular marginal spines and the rather well-developed apical pore field at each apex. The virgae and sternum are clearly raised with the striae as punch-holes. 72. External view of the open valvocopula showing fimbriae. 73. SEM internal view of an entire valve. Scale bars = 10 µm." figureDoi="http://doi.org/10.5281/zenodo.6534695" httpUri="https://zenodo.org/record/6534695/files/figure.png" pageId="2" pageNumber="165">Figs 69–73</figureCitation>
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): External valve face undulating with raised virgae and striae slightly sunken in ‘punch holelike’ depressions (
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<figureCitation id="1329ABD5511D0901C959FB68FE538486" box="[342,476,1240,1266]" captionStart="FIGURES 69–73" captionStartId="4.[136,243,1930,1952]" captionTargetBox="[164,1423,190,1906]" captionTargetId="figure-22@4.[164,1423,190,1906]" captionTargetPageId="4" captionText="FIGURES 69–73. Staurosirella coutelasiana Van de Vijver sp. nov. SEM images taken from the holotype material (BR-4711, Rabenhorst sample 1441, Casaccio, Switzerland). 69–71. Three external views of an entire valve. Note the presence of the irregular marginal spines and the rather well-developed apical pore field at each apex. The virgae and sternum are clearly raised with the striae as punch-holes. 72. External view of the open valvocopula showing fimbriae. 73. SEM internal view of an entire valve. Scale bars = 10 µm." figureDoi="http://doi.org/10.5281/zenodo.6534695" httpUri="https://zenodo.org/record/6534695/files/figure.png" pageId="2" pageNumber="165">Figs 69, 70</figureCitation>
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). Striae extending without interruption from the valve face onto the mantle gradually narrowing at both ends (
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<figureCitation id="1329ABD5511D0901C995FB4CFE638562" box="[410,492,1276,1302]" captionStart="FIGURES 69–73" captionStartId="4.[136,243,1930,1952]" captionTargetBox="[164,1423,190,1906]" captionTargetId="figure-22@4.[164,1423,190,1906]" captionTargetPageId="4" captionText="FIGURES 69–73. Staurosirella coutelasiana Van de Vijver sp. nov. SEM images taken from the holotype material (BR-4711, Rabenhorst sample 1441, Casaccio, Switzerland). 69–71. Three external views of an entire valve. Note the presence of the irregular marginal spines and the rather well-developed apical pore field at each apex. The virgae and sternum are clearly raised with the striae as punch-holes. 72. External view of the open valvocopula showing fimbriae. 73. SEM internal view of an entire valve. Scale bars = 10 µm." figureDoi="http://doi.org/10.5281/zenodo.6534695" httpUri="https://zenodo.org/record/6534695/files/figure.png" pageId="2" pageNumber="165">Fig. 71</figureCitation>
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) giving the striae a lanceolate appearance. Large hyaline zone present at the abvalvar mantle edge (
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<figureCitation id="1329ABD5511D0901C928FA90FE0F854E" box="[295,384,1312,1338]" captionStart="FIGURES 69–73" captionStartId="4.[136,243,1930,1952]" captionTargetBox="[164,1423,190,1906]" captionTargetId="figure-22@4.[164,1423,190,1906]" captionTargetPageId="4" captionText="FIGURES 69–73. Staurosirella coutelasiana Van de Vijver sp. nov. SEM images taken from the holotype material (BR-4711, Rabenhorst sample 1441, Casaccio, Switzerland). 69–71. Three external views of an entire valve. Note the presence of the irregular marginal spines and the rather well-developed apical pore field at each apex. The virgae and sternum are clearly raised with the striae as punch-holes. 72. External view of the open valvocopula showing fimbriae. 73. SEM internal view of an entire valve. Scale bars = 10 µm." figureDoi="http://doi.org/10.5281/zenodo.6534695" httpUri="https://zenodo.org/record/6534695/files/figure.png" pageId="2" pageNumber="165">Fig. 73</figureCitation>
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). Striae uniseriate, composed of long, slit-like, linear areolae, running parallel to the apical axis (
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<figureCitation id="1329ABD5511D0901C8CAFAF4FEC6852B" box="[197,329,1348,1375]" captionStart="FIGURES 69–73" captionStartId="4.[136,243,1930,1952]" captionTargetBox="[164,1423,190,1906]" captionTargetId="figure-22@4.[164,1423,190,1906]" captionTargetPageId="4" captionText="FIGURES 69–73. Staurosirella coutelasiana Van de Vijver sp. nov. SEM images taken from the holotype material (BR-4711, Rabenhorst sample 1441, Casaccio, Switzerland). 69–71. Three external views of an entire valve. Note the presence of the irregular marginal spines and the rather well-developed apical pore field at each apex. The virgae and sternum are clearly raised with the striae as punch-holes. 72. External view of the open valvocopula showing fimbriae. 73. SEM internal view of an entire valve. Scale bars = 10 µm." figureDoi="http://doi.org/10.5281/zenodo.6534695" httpUri="https://zenodo.org/record/6534695/files/figure.png" pageId="2" pageNumber="165">Figs 69–71</figureCitation>
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). Vimines not raised. Marginal spines located on the virgae, irregularly shaped (acute to spatulate), originating from one (
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<figureCitation id="1329ABD5511D0901C98DFAD8FE5A85F6" box="[386,469,1384,1410]" captionStart="FIGURES 69–73" captionStartId="4.[136,243,1930,1952]" captionTargetBox="[164,1423,190,1906]" captionTargetId="figure-22@4.[164,1423,190,1906]" captionTargetPageId="4" captionText="FIGURES 69–73. Staurosirella coutelasiana Van de Vijver sp. nov. SEM images taken from the holotype material (BR-4711, Rabenhorst sample 1441, Casaccio, Switzerland). 69–71. Three external views of an entire valve. Note the presence of the irregular marginal spines and the rather well-developed apical pore field at each apex. The virgae and sternum are clearly raised with the striae as punch-holes. 72. External view of the open valvocopula showing fimbriae. 73. SEM internal view of an entire valve. Scale bars = 10 µm." figureDoi="http://doi.org/10.5281/zenodo.6534695" httpUri="https://zenodo.org/record/6534695/files/figure.png" pageId="2" pageNumber="165">Fig. 70</figureCitation>
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) or two points (
|
||
<figureCitation id="1329ABD5511D0901CA84FAD8FC8185F6" box="[651,782,1384,1410]" captionStart="FIGURES 69–73" captionStartId="4.[136,243,1930,1952]" captionTargetBox="[164,1423,190,1906]" captionTargetId="figure-22@4.[164,1423,190,1906]" captionTargetPageId="4" captionText="FIGURES 69–73. Staurosirella coutelasiana Van de Vijver sp. nov. SEM images taken from the holotype material (BR-4711, Rabenhorst sample 1441, Casaccio, Switzerland). 69–71. Three external views of an entire valve. Note the presence of the irregular marginal spines and the rather well-developed apical pore field at each apex. The virgae and sternum are clearly raised with the striae as punch-holes. 72. External view of the open valvocopula showing fimbriae. 73. SEM internal view of an entire valve. Scale bars = 10 µm." figureDoi="http://doi.org/10.5281/zenodo.6534695" httpUri="https://zenodo.org/record/6534695/files/figure.png" pageId="2" pageNumber="165">Figs 69, 71</figureCitation>
|
||
). Spine base hollow (
|
||
<figureCitation id="1329ABD5511D0901CC0CFAD8FBD785F6" box="[1027,1112,1384,1410]" captionStart="FIGURES 69–73" captionStartId="4.[136,243,1930,1952]" captionTargetBox="[164,1423,190,1906]" captionTargetId="figure-22@4.[164,1423,190,1906]" captionTargetPageId="4" captionText="FIGURES 69–73. Staurosirella coutelasiana Van de Vijver sp. nov. SEM images taken from the holotype material (BR-4711, Rabenhorst sample 1441, Casaccio, Switzerland). 69–71. Three external views of an entire valve. Note the presence of the irregular marginal spines and the rather well-developed apical pore field at each apex. The virgae and sternum are clearly raised with the striae as punch-holes. 72. External view of the open valvocopula showing fimbriae. 73. SEM internal view of an entire valve. Scale bars = 10 µm." figureDoi="http://doi.org/10.5281/zenodo.6534695" httpUri="https://zenodo.org/record/6534695/files/figure.png" pageId="2" pageNumber="165">Fig. 71</figureCitation>
|
||
). Apical pore fields present at both apices, usually similar in size and shape (
|
||
<figureCitation id="1329ABD5511D0901CA9EFA3CFC9B85D3" box="[657,788,1420,1447]" captionStart="FIGURES 69–73" captionStartId="4.[136,243,1930,1952]" captionTargetBox="[164,1423,190,1906]" captionTargetId="figure-22@4.[164,1423,190,1906]" captionTargetPageId="4" captionText="FIGURES 69–73. Staurosirella coutelasiana Van de Vijver sp. nov. SEM images taken from the holotype material (BR-4711, Rabenhorst sample 1441, Casaccio, Switzerland). 69–71. Three external views of an entire valve. Note the presence of the irregular marginal spines and the rather well-developed apical pore field at each apex. The virgae and sternum are clearly raised with the striae as punch-holes. 72. External view of the open valvocopula showing fimbriae. 73. SEM internal view of an entire valve. Scale bars = 10 µm." figureDoi="http://doi.org/10.5281/zenodo.6534695" httpUri="https://zenodo.org/record/6534695/files/figure.png" pageId="2" pageNumber="165">Figs 69–70</figureCitation>
|
||
), located at the valve face/mantle junction, extending more onto the valve mantle, isolated from neighboring striae. Pore fields composed of small, rimmed pores, arranged in several irregular rows.
|
||
</paragraph>
|
||
<paragraph id="8BADB750511D0901C8B2FA48FD84862E" blockId="2.[136,1452,952,2059]" pageId="2" pageNumber="165">
|
||
Valvocopula with short but well developed fimbriae (
|
||
<figureCitation id="1329ABD5511D0901CB02FA48FCEE8666" box="[781,865,1528,1554]" captionStart="FIGURES 69–73" captionStartId="4.[136,243,1930,1952]" captionTargetBox="[164,1423,190,1906]" captionTargetId="figure-22@4.[164,1423,190,1906]" captionTargetPageId="4" captionText="FIGURES 69–73. Staurosirella coutelasiana Van de Vijver sp. nov. SEM images taken from the holotype material (BR-4711, Rabenhorst sample 1441, Casaccio, Switzerland). 69–71. Three external views of an entire valve. Note the presence of the irregular marginal spines and the rather well-developed apical pore field at each apex. The virgae and sternum are clearly raised with the striae as punch-holes. 72. External view of the open valvocopula showing fimbriae. 73. SEM internal view of an entire valve. Scale bars = 10 µm." figureDoi="http://doi.org/10.5281/zenodo.6534695" httpUri="https://zenodo.org/record/6534695/files/figure.png" pageId="2" pageNumber="165">Fig. 72</figureCitation>
|
||
). Internally, striae distinctly sunken between the flat, doubly flared virgae and sternum (
|
||
<figureCitation id="1329ABD5511D0901CA01F9ACFDEC8642" box="[526,611,1564,1590]" captionStart="FIGURES 69–73" captionStartId="4.[136,243,1930,1952]" captionTargetBox="[164,1423,190,1906]" captionTargetId="figure-22@4.[164,1423,190,1906]" captionTargetPageId="4" captionText="FIGURES 69–73. Staurosirella coutelasiana Van de Vijver sp. nov. SEM images taken from the holotype material (BR-4711, Rabenhorst sample 1441, Casaccio, Switzerland). 69–71. Three external views of an entire valve. Note the presence of the irregular marginal spines and the rather well-developed apical pore field at each apex. The virgae and sternum are clearly raised with the striae as punch-holes. 72. External view of the open valvocopula showing fimbriae. 73. SEM internal view of an entire valve. Scale bars = 10 µm." figureDoi="http://doi.org/10.5281/zenodo.6534695" httpUri="https://zenodo.org/record/6534695/files/figure.png" pageId="2" pageNumber="165">Fig. 73</figureCitation>
|
||
). Areolae occluded by irregularly shaped volae, extending from the longer inner side of each vimen (
|
||
<figureCitation id="1329ABD5511D0901C9A4F9F0FE70862E" box="[427,511,1600,1626]" captionStart="FIGURES 69–73" captionStartId="4.[136,243,1930,1952]" captionTargetBox="[164,1423,190,1906]" captionTargetId="figure-22@4.[164,1423,190,1906]" captionTargetPageId="4" captionText="FIGURES 69–73. Staurosirella coutelasiana Van de Vijver sp. nov. SEM images taken from the holotype material (BR-4711, Rabenhorst sample 1441, Casaccio, Switzerland). 69–71. Three external views of an entire valve. Note the presence of the irregular marginal spines and the rather well-developed apical pore field at each apex. The virgae and sternum are clearly raised with the striae as punch-holes. 72. External view of the open valvocopula showing fimbriae. 73. SEM internal view of an entire valve. Scale bars = 10 µm." figureDoi="http://doi.org/10.5281/zenodo.6534695" httpUri="https://zenodo.org/record/6534695/files/figure.png" pageId="2" pageNumber="165">Fig. 73</figureCitation>
|
||
).
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C308E4DB511D0901C8B2F9D4FD73877A" pageId="2" pageNumber="165" type="materials_examined">
|
||
<paragraph id="8BADB750511D0901C8B2F9D4FD73877A" blockId="2.[136,1452,952,2059]" pageId="2" pageNumber="165">
|
||
<emphasis id="B9666B42511D0901C8B2F9D4FE91860A" bold="true" box="[189,286,1636,1662]" pageId="2" pageNumber="165">Type:—</emphasis>
|
||
<materialsCitation id="3B7ABD0D511D0901C912F9D4FCA086B3" ID-GBIF-Occurrence="3766119302" collectionCode="BR" country="Switzerland" location="University of Antwerp" municipality="Graubunden" pageId="2" pageNumber="165" specimenCode="BR- 4711" specimenCount="1" stateProvince="Casaccio" typeStatus="holotype">
|
||
<collectingCountry id="F305F7C0511D0901C912F9D4FE68860A" box="[285,487,1636,1662]" name="Switzerland" pageId="2" pageNumber="165">SWITZERLAND</collectingCountry>
|
||
,
|
||
<collectingRegion id="49D679B2511D0901C9FEF9D4FDD6860A" box="[497,601,1636,1662]" pageId="2" pageNumber="165">Casaccio</collectingRegion>
|
||
, south side of the Lukmanier (border between the cantons of
|
||
<collectingMunicipality id="6BC92D2A511D0901CCFCF9D4FAF2860A" box="[1267,1405,1636,1662]" pageId="2" pageNumber="165">Graubünden</collectingMunicipality>
|
||
and
|
||
<collectingMunicipality id="6BC92D2A511D0901C887F938FF5A86D7" box="[136,213,1672,1699]" pageId="2" pageNumber="165">Ticino</collectingMunicipality>
|
||
), prepared from Rabenhorst exsiccata sample 1441 (exsiccata set Algen Sachen’s & Europa’s) (
|
||
<typeStatus id="54A909F2511D0901CD1EF938FAFA86D6" box="[1297,1397,1672,1698]" pageId="2" pageNumber="165" type="holotype">holotype</typeStatus>
|
||
<specimenCode id="DBB41F2B511D0901CD72F939FF4886B2" pageId="2" pageNumber="165">BR-4711</specimenCode>
|
||
!, isotype Slide 402 (
|
||
<location id="8ECDE18B511D0901C9A5F91CFD2286B2" LSID="urn:lsid:plazi:treatment:03BB0646511D0901C887FCC0FB52887F:8ECDE18B511D0901C9A5F91CFD2286B2" box="[426,685,1708,1734]" country="Switzerland" municipality="Graubunden" name="University of Antwerp" pageId="2" pageNumber="165" stateProvince="Casaccio">University of Antwerp</location>
|
||
,
|
||
<location id="8ECDE18B511D0901CAB7F91CFC9286B3" LSID="urn:lsid:plazi:treatment:03BB0646511D0901C887FCC0FB52887F:8ECDE18B511D0901CAB7F91CFC9286B3" box="[696,797,1708,1735]" country="Switzerland" municipality="Graubunden" name="Belgium" pageId="2" pageNumber="165" stateProvince="Casaccio">Belgium</location>
|
||
))
|
||
</materialsCitation>
|
||
. The
|
||
<typeStatus id="54A909F2511D0901CB62F91CFC4086B2" box="[877,975,1708,1734]" pageId="2" pageNumber="165" type="holotype">holotype</typeStatus>
|
||
is represented here by
|
||
<figureCitation id="1329ABD5511D0901CCD9F91CFAA786B2" box="[1238,1320,1708,1734]" captionStart="FIGURES 1–68" captionStartId="3.[136,243,1489,1511]" captionTargetBox="[151,1435,187,1462]" captionTargetId="figure-17@3.[151,1435,187,1462]" captionTargetPageId="3" captionText="FIGURES 1–68. Light micrographs of three Staurosirella species observed in Rabenhorst sample 1441. 1–30. Staurosirella coutelasiana Van de Vijver sp. nov. LM views of the population arranged in decreasing length. Fig. 1. represents a frustule in girdle view. 31–51. Staurosirella minutissima Van de Vijver, sp. nov. LM views of the population arranged in decreasing length. Figs 31 and 32 represent frustules in girdle view, either inpairs (31)or solitary (32). 52 represents a possible valvocopula.52–68.Staurosirella neopinnata E.Morales et al. LM views of the population arranged in decreasing length. 68. Represents two frustules in girdle view. Scale bars = 10 µm." figureDoi="http://doi.org/10.5281/zenodo.6534693" httpUri="https://zenodo.org/record/6534693/files/figure.png" pageId="2" pageNumber="165">Fig. 11</figureCitation>
|
||
. Duplicates of the Rabenhorst material No. 1441 and Wartmann & Schenk as sample 233 can be found in numerous herbaria worldwide (e.g.
|
||
<bibRefCitation id="EF83CAA1511D0901C94FF944FDF2877B" author="Stafleu, F. A. & Cowan, R. S." box="[320,637,1780,1807]" pageId="2" pageNumber="165" refId="ref8070" refString="Stafleu, F. A. & Cowan, R. S. (1983) Taxonomic literature, volume IV: P - Sak (2 nd ed.). Utrecht, Antwerpen: Bohn, Scheltema & Holkema; The Hague, Boston: dr. W. Junk Publishers. 1214 pp." type="book" year="1983">Stafleu & Cowan 1983: 465</bibRefCitation>
|
||
;
|
||
<bibRefCitation id="EF83CAA1511D0901CA86F944FD60877A" author="Stafleu, F. A. & Cowan, R. S." box="[649,751,1780,1806]" pageId="2" pageNumber="165" refId="ref8127" refString="Stafleu, F. A. & Cowan, R. S. (1988) Taxonomic literature, volume VII: W - Z (2 nd ed.). Utrecht, Antwerpen: Bohn, Scheltema & Holkema; The Hague, Boston: dr. W. Junk Publishers. 653 pp." type="book" year="1988">1988: 93</bibRefCitation>
|
||
).
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C308E4DB511D0901C8B2F8A8FB978722" pageId="2" pageNumber="165" type="etymology">
|
||
<paragraph id="8BADB750511D0901C8B2F8A8FB978722" blockId="2.[136,1452,952,2059]" pageId="2" pageNumber="165">
|
||
<emphasis id="B9666B42511D0901C8B2F8A8FEEB8746" bold="true" box="[189,356,1816,1842]" pageId="2" pageNumber="165">Etymology:—</emphasis>
|
||
The new species is named after my dear friend, Mrs. Marine Coutelas (Chavignon,
|
||
<collectingCountry id="F305F7C0511D0901CD37F8A9FA068747" box="[1336,1417,1817,1843]" name="France" pageId="2" pageNumber="165">France</collectingCountry>
|
||
), a young enthusiast French artist with a passion for the world of plants and diatoms.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C308E4DB511D0901C8B2F8D0FB52887F" pageId="2" pageNumber="165" type="discussion">
|
||
<paragraph id="8BADB750511D0901C8B2F8D0FB52887F" blockId="2.[136,1452,952,2059]" pageId="2" pageNumber="165">
|
||
<emphasis id="B9666B42511D0901C8B2F8D0FEEB870E" bold="true" box="[189,356,1888,1914]" pageId="2" pageNumber="165">Comments:—</emphasis>
|
||
Due to confusion with
|
||
<taxonomicName id="4C12CCD3511D0901CA6CF8D0FD73870E" box="[611,764,1888,1914]" class="Bacillariophyceae" family="Fragilariaceae" genus="Staurosirella" higherTaxonomySource="GBIF" kingdom="Chromista" order="Fragilariales" pageId="2" pageNumber="165" phylum="Bacillariophyta" rank="species" species="neopinnata">
|
||
<emphasis id="B9666B42511D0901CA6CF8D0FD73870E" box="[611,764,1888,1914]" italics="true" pageId="2" pageNumber="165">S. neopinnata</emphasis>
|
||
</taxonomicName>
|
||
, also present in the sample, it is difficult to establish what the smallest specimens of this new species could be.
|
||
<figureCitation id="1329ABD5511D0901CAB8F834FCAB87EA" box="[695,804,1924,1950]" captionStart="FIGURES 1–68" captionStartId="3.[136,243,1489,1511]" captionTargetBox="[151,1435,187,1462]" captionTargetId="figure-17@3.[151,1435,187,1462]" captionTargetPageId="3" captionText="FIGURES 1–68. Light micrographs of three Staurosirella species observed in Rabenhorst sample 1441. 1–30. Staurosirella coutelasiana Van de Vijver sp. nov. LM views of the population arranged in decreasing length. Fig. 1. represents a frustule in girdle view. 31–51. Staurosirella minutissima Van de Vijver, sp. nov. LM views of the population arranged in decreasing length. Figs 31 and 32 represent frustules in girdle view, either inpairs (31)or solitary (32). 52 represents a possible valvocopula.52–68.Staurosirella neopinnata E.Morales et al. LM views of the population arranged in decreasing length. 68. Represents two frustules in girdle view. Scale bars = 10 µm." figureDoi="http://doi.org/10.5281/zenodo.6534693" httpUri="https://zenodo.org/record/6534693/files/figure.png" pageId="2" pageNumber="165">Figure 30</figureCitation>
|
||
represents a short, elliptical valve (length 7 µm) that can represent either
|
||
<taxonomicName id="4C12CCD3511D0901C930F818FE6487B6" authorityName="Van de Vijver" authorityYear="2022" box="[319,491,1960,1986]" class="Bacillariophyceae" family="Fragilariaceae" genus="Staurosirella" higherTaxonomySource="GBIF" kingdom="Chromista" order="Fragilariales" pageId="2" pageNumber="165" phylum="Bacillariophyta" rank="species" species="coutelasiana">
|
||
<emphasis id="B9666B42511D0901C930F818FE6487B6" box="[319,491,1960,1986]" italics="true" pageId="2" pageNumber="165">S. coutelasiana</emphasis>
|
||
</taxonomicName>
|
||
but also
|
||
<taxonomicName id="4C12CCD3511D0901CA5BF818FD6087B6" box="[596,751,1960,1986]" class="Bacillariophyceae" family="Fragilariaceae" genus="Staurosirella" higherTaxonomySource="GBIF" kingdom="Chromista" order="Fragilariales" pageId="2" pageNumber="165" phylum="Bacillariophyta" rank="species" species="neopinnata">
|
||
<emphasis id="B9666B42511D0901CA5BF818FD6087B6" box="[596,751,1960,1986]" italics="true" pageId="2" pageNumber="165">S. neopinnata</emphasis>
|
||
</taxonomicName>
|
||
(see
|
||
<figureCitation id="1329ABD5511D0901CB23F818FC2487B7" box="[812,939,1960,1987]" captionStart="FIGURES 1–68" captionStartId="3.[136,243,1489,1511]" captionTargetBox="[151,1435,187,1462]" captionTargetId="figure-17@3.[151,1435,187,1462]" captionTargetPageId="3" captionText="FIGURES 1–68. Light micrographs of three Staurosirella species observed in Rabenhorst sample 1441. 1–30. Staurosirella coutelasiana Van de Vijver sp. nov. LM views of the population arranged in decreasing length. Fig. 1. represents a frustule in girdle view. 31–51. Staurosirella minutissima Van de Vijver, sp. nov. LM views of the population arranged in decreasing length. Figs 31 and 32 represent frustules in girdle view, either inpairs (31)or solitary (32). 52 represents a possible valvocopula.52–68.Staurosirella neopinnata E.Morales et al. LM views of the population arranged in decreasing length. 68. Represents two frustules in girdle view. Scale bars = 10 µm." figureDoi="http://doi.org/10.5281/zenodo.6534693" httpUri="https://zenodo.org/record/6534693/files/figure.png" pageId="2" pageNumber="165">Figs 53–68</figureCitation>
|
||
for the
|
||
<taxonomicName id="4C12CCD3511D0901CC0AF818FB2E87B6" box="[1029,1185,1960,1986]" class="Bacillariophyceae" family="Fragilariaceae" genus="Staurosirella" higherTaxonomySource="GBIF" kingdom="Chromista" order="Fragilariales" pageId="2" pageNumber="165" phylum="Bacillariophyta" rank="species" species="neopinnata">
|
||
<emphasis id="B9666B42511D0901CC0AF818FB2E87B6" box="[1029,1185,1960,1986]" italics="true" pageId="2" pageNumber="165">S. neopinnata</emphasis>
|
||
</taxonomicName>
|
||
population observed in the sample). It is impossible to attribute this valve with 100 % certainty to any of both species. Therefore, the smallest valve that undoubtedly can be identified as
|
||
<taxonomicName id="4C12CCD3511D0901CA7FF840FC94887E" authorityName="Van de Vijver" authorityYear="2022" box="[624,795,2032,2058]" class="Bacillariophyceae" family="Fragilariaceae" genus="Staurosirella" higherTaxonomySource="GBIF" kingdom="Chromista" order="Fragilariales" pageId="2" pageNumber="165" phylum="Bacillariophyta" rank="species" species="coutelasiana">
|
||
<emphasis id="B9666B42511D0901CA7FF840FC94887E" box="[624,795,2032,2058]" italics="true" pageId="2" pageNumber="165">S. coutelasiana</emphasis>
|
||
</taxonomicName>
|
||
is
|
||
<figureCitation id="1329ABD5511D0901CB34F840FC04887E" box="[827,907,2032,2058]" captionStart="FIGURES 1–68" captionStartId="3.[136,243,1489,1511]" captionTargetBox="[151,1435,187,1462]" captionTargetId="figure-17@3.[151,1435,187,1462]" captionTargetPageId="3" captionText="FIGURES 1–68. Light micrographs of three Staurosirella species observed in Rabenhorst sample 1441. 1–30. Staurosirella coutelasiana Van de Vijver sp. nov. LM views of the population arranged in decreasing length. Fig. 1. represents a frustule in girdle view. 31–51. Staurosirella minutissima Van de Vijver, sp. nov. LM views of the population arranged in decreasing length. Figs 31 and 32 represent frustules in girdle view, either inpairs (31)or solitary (32). 52 represents a possible valvocopula.52–68.Staurosirella neopinnata E.Morales et al. LM views of the population arranged in decreasing length. 68. Represents two frustules in girdle view. Scale bars = 10 µm." figureDoi="http://doi.org/10.5281/zenodo.6534693" httpUri="https://zenodo.org/record/6534693/files/figure.png" pageId="2" pageNumber="165">Fig. 29</figureCitation>
|
||
with a valve length of 15 µm.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |