369 lines
69 KiB
XML
369 lines
69 KiB
XML
<document id="6E291F9641540702C9D499EB45CB6191" ID-DOI="10.11646/phytotaxa.167.3.4" ID-ISSN="1179-3163" ID-Zenodo-Dep="5138821" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" checkinTime="1627344578663" checkinUser="felipe" docAuthor="Vijver, Bart Van De, Morales, Eduardo A. & Kopalová, Kateřina" docDate="2014" docId="0392E422FFA2CC5B1A80F9C9995EF781" docLanguage="en" docName="Phytotaxa.167.3.256-266.pdf" docOrigin="Phytotaxa 167 (3)" docSource="http://dx.doi.org/10.11646/phytotaxa.167.3.4" docStyle="DocumentStyle:96748F8F1B6C902996E134952A3A36B9.7:Phytotaxa.2014-.journal_article" docStyleId="96748F8F1B6C902996E134952A3A36B9" docStyleName="Phytotaxa.2014-.journal_article" docStyleVersion="7" docTitle="Staurosira pottiezii Van de Vijver 2014, sp. nov." docType="treatment" docVersion="3" lastPageNumber="259" masterDocId="FFAB9C5AFFA3CC581A08FFDD980FFFAD" masterDocTitle="Three new araphid diatoms (Bacillariophyta) from the Maritime Antarctic Region" masterLastPageNumber="266" masterPageNumber="256" pageNumber="257" updateTime="1699024398321" updateUser="plazi" zenodo-license-figures="UNSPECIFIED" zenodo-license-treatments="UNSPECIFIED">
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<mods:title id="44112B4098A9EACB9A6A376B9E5FFE6E">Three new araphid diatoms (Bacillariophyta) from the Maritime Antarctic Region</mods:title>
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<mods:namePart id="43DDA1ECE96ACA2C424AA91B1AB2FC38">Vijver, Bart Van De</mods:namePart>
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<mods:affiliation id="DE20C721E0B6B661F4C6E3ABC055919F">Botanic Garden Meise, Department of Bryophyta & Thallophyta, Nieuwelaan 38, B- 1860 Meise, Belgium (vandevijver @ br. fgov. be) University of Antwerp, Department of Biology, ECOBE, Universiteitsplein 1, B- 2610 Wilrijk, Antwerpen, Belgium</mods:affiliation>
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<mods:namePart id="3F9511072CBD930E56FD208E84843775">Morales, Eduardo A.</mods:namePart>
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<mods:affiliation id="8D56BE80759D46C595258D5121F78880">Herbario Criptogámico, Universidad Católica Boliviana San Pablo, Calle M. Márquez esq. Plaza Jorge Trigo s / n, P. O. Box 5381, Cochabamba, Bolivia</mods:affiliation>
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<mods:namePart id="999206EE6F4D5CA59D973301B683F1BC">Kopalová, Kateřina</mods:namePart>
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<mods:affiliation id="643649D42A536F448370BECB5B1BE625">Charles University in Prague, Faculty of Science, Department of Ecology, Viničná 7, CZ- 12844 Prague 2, Czech Republic & Academy of Sciences of the Czech Republic, Institute of Botany, Section of Plant Ecology, Dukelská 135, CZ- 37982 Třeboň, Czech Republic</mods:affiliation>
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<mods:title id="107824817D913CDCA7C8817A0B65A9C9">Phytotaxa</mods:title>
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<mods:date id="E89CB35DCD3F35DF91D216AAA4652767">2014</mods:date>
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<mods:number id="366A220A4646A6E6D978CDEC80D120C0">2014-05-14</mods:number>
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<subSubSection id="C32106BFFFA2CC591A80F9C999BFF887" pageId="1" pageNumber="257" type="nomenclature">
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<paragraph id="8B845534FFA2CC591A80F9C99AE7F982" blockId="1.[136,744,1556,1583]" box="[136,744,1556,1583]" pageId="1" pageNumber="257">
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<heading id="D0CCE258FFA2CC591A80F9C99AE7F982" box="[136,744,1556,1583]" fontSize="11" level="2" pageId="1" pageNumber="257" reason="3">
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<taxonomicName id="4C3B2EB7FFA2CC591A80F9C99A0CF983" authority="Van de Vijver" authorityName="Van de Vijver" authorityYear="2014" box="[136,515,1556,1583]" class="Bacillariophyceae" family="Fragilariaceae" genus="Staurosira" higherTaxonomySource="GBIF" kingdom="Chromista" order="Fragilariales" pageId="1" pageNumber="257" phylum="Bacillariophyta" rank="species" species="pottiezii" status="sp. nov.">
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<emphasis id="B94F8926FFA2CC591A80F9C9996DF983" bold="true" box="[136,354,1556,1582]" italics="true" pageId="1" pageNumber="257">Staurosira pottiezii</emphasis>
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Van de Vijver
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</taxonomicName>
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<emphasis id="B94F8926FFA2CC591802F9C89A50F983" box="[522,607,1557,1582]" italics="true" pageId="1" pageNumber="257">
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<taxonomicNameLabel id="A27C345DFFA2CC591802F9C89A50F983" box="[522,607,1557,1582]" pageId="1" pageNumber="257" rank="species">sp. nov.</taxonomicNameLabel>
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</emphasis>
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(
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<figureCitation id="130049B1FFA2CC591865F9C99AD1F982" box="[621,734,1556,1583]" captionStart="FIGURES 1–25" captionStartId="2.[136,243,1847,1869]" captionTargetBox="[151,1435,171,1834]" captionTargetId="figure-25@2.[151,1435,171,1834]" captionTargetPageId="2" captionText="FIGURES 1–25: Staurosira pottiezii Van de Vijver sp. nov. All pictures taken from the holotype population (sample BY038). Figs 1–18. LM images. Fig. 18 shows a girdle view, whereas Figs 1–17 show valve views. Figs 19–25: SEM images. Fig. 19: Chain of two entire frustules showing the linking spines, parts of the girdle bands and the mantle. Fig. 20: External view of an entire valve showing the linking spines, the apical pore field and the striae. Fig. 21: Valvocopula with fimbriae. Fig. 22: Detail of the apical pore field showing 5 rows of small, rounded poroids separated from the striae. Fig. 23: Detail of the striae with the areolae. Note the volae forming a complex structure within the areolae. Fig. 24: Internal view of an entire valve. Fig. 25: Internal detail of the apical pore field. Scale bar represents 10 µm except for Figs 22, 23, 25 where scale bar = 1µm." figureDoi="http://doi.org/10.5281/zenodo.5138825" httpUri="https://zenodo.org/record/5138825/files/figure.png" pageId="1" pageNumber="257">Figs 1–25</figureCitation>
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)
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</heading>
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</paragraph>
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<paragraph id="8B845534FFA2CC591A80F9BD99BFF887" blockId="1.[136,1452,1632,1834]" pageId="1" pageNumber="257">
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Cells linear to linear-lanceolate with weakly or markedly constricted margins and rostrate to subcapitate ends. Length
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<quantity id="4CC3F8D1FFA2CC591F0CF9BD9D65F9D8" box="[1284,1386,1632,1654]" metricMagnitude="-2" metricUnit="m" metricValue="1.85" metricValueMax="2.2" metricValueMin="1.5" pageId="1" pageNumber="257" unit="mm" value="18.5" valueMax="22.0" valueMin="15.0">15–22 µm</quantity>
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, width
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<quantity id="4CC3F8D1FFA2CC591AB5F959993FF934" box="[189,304,1668,1690]" metricMagnitude="-3" metricUnit="m" metricValue="3.4" metricValueMax="3.6" metricValueMin="3.2" pageId="1" pageNumber="257" unit="mm" value="3.4" valueMax="3.6" valueMin="3.2">3.2–3.6 µm</quantity>
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, stria density
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<quantity id="4CC3F8D1FFA2CC591BBFF9599A02F937" box="[439,525,1668,1690]" metricMagnitude="-1" metricUnit="m" metricValue="3.175" metricValueMax="3.302" metricValueMin="3.048" pageId="1" pageNumber="257" unit="in" value="12.5" valueMax="13.0" valueMin="12.0">12–13 in</quantity>
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<quantity id="4CC3F8D1FFA2CC59181CF9599A59F934" box="[532,598,1668,1689]" metricMagnitude="-2" metricUnit="m" metricValue="1.0" pageId="1" pageNumber="257" unit="mm" value="10.0">10 µm</quantity>
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. Central sternum narrow, linear to lanceolate, narrow at apices. Striae alternate, parallel in central area and radiate at apices. Areolae slightly lineolate, running continuously from valve face to mantle,
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<quantity id="4CC3F8D1FFA2CC591F05F9759D6CF913" box="[1293,1379,1704,1726]" metricMagnitude="0" metricUnit="m" metricValue="1.3969999999999998" metricValueMax="1.524" metricValueMin="1.27" pageId="1" pageNumber="257" unit="in" value="55.0" valueMax="60.0" valueMin="50.0">50–60 in</quantity>
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<quantity id="4CC3F8D1FFA2CC591F63F9759DA4F910" box="[1387,1451,1704,1725]" metricMagnitude="-2" metricUnit="m" metricValue="1.0" pageId="1" pageNumber="257" unit="mm" value="10.0">10 µm</quantity>
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and bearing intricate volae. Spines spatulate, lobed at ends and located on the virgae. Apical pore field at each apex, located on the valve mantle, comprising 3–5 rows of round poroids. Girdle bands open, non-perforated. Valvocopula wider than copulae, bearing well-developed fimbriae.
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</paragraph>
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</subSubSection>
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<subSubSection id="C32106BFFFA2CC5B1A80F8849BBAFDC5" lastPageId="3" lastPageNumber="259" pageId="1" pageNumber="257" type="description">
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<paragraph id="8B845534FFA2CC591A80F8849CF2F7AE" blockId="1.[136,1452,1880,2051]" pageId="1" pageNumber="257">
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<emphasis id="B94F8926FFA2CC591A80F8849945F8DF" box="[136,330,1880,1906]" italics="true" pageId="1" pageNumber="257">
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LM (
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||
<figureCitation id="130049B1FFA2CC591ACAF8859935F8DF" box="[194,314,1880,1906]" captionStart="FIGURES 1–25" captionStartId="2.[136,243,1847,1869]" captionTargetBox="[151,1435,171,1834]" captionTargetId="figure-25@2.[151,1435,171,1834]" captionTargetPageId="2" captionText="FIGURES 1–25: Staurosira pottiezii Van de Vijver sp. nov. All pictures taken from the holotype population (sample BY038). Figs 1–18. LM images. Fig. 18 shows a girdle view, whereas Figs 1–17 show valve views. Figs 19–25: SEM images. Fig. 19: Chain of two entire frustules showing the linking spines, parts of the girdle bands and the mantle. Fig. 20: External view of an entire valve showing the linking spines, the apical pore field and the striae. Fig. 21: Valvocopula with fimbriae. Fig. 22: Detail of the apical pore field showing 5 rows of small, rounded poroids separated from the striae. Fig. 23: Detail of the striae with the areolae. Note the volae forming a complex structure within the areolae. Fig. 24: Internal view of an entire valve. Fig. 25: Internal detail of the apical pore field. Scale bar represents 10 µm except for Figs 22, 23, 25 where scale bar = 1µm." figureDoi="http://doi.org/10.5281/zenodo.5138825" httpUri="https://zenodo.org/record/5138825/files/figure.png" pageId="1" pageNumber="257">Figs 1–18</figureCitation>
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):
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</emphasis>
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||
Frustules are rectangular in girdle view, forming long ribbon-like colonies of up to several tens of individuals. Valves are linear to weakly linear-lanceolate with parallel, often constricted margins and rostrate to subcapitate apices. Valve dimensions (n=25): length
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<quantity id="4CC3F8D1FFA2CC5918DEF87D9B44F816" box="[726,843,1952,1979]" metricMagnitude="-2" metricUnit="m" metricValue="1.85" metricValueMax="2.2" metricValueMin="1.5" pageId="1" pageNumber="257" unit="mm" value="18.5" valueMax="22.0" valueMin="15.0">15–22 µm</quantity>
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, width
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||
<quantity id="4CC3F8D1FFA2CC591996F87D9C2DF816" box="[926,1058,1952,1979]" metricMagnitude="-3" metricUnit="m" metricValue="3.4" metricValueMax="3.6" metricValueMin="3.2" pageId="1" pageNumber="257" unit="mm" value="3.4" valueMax="3.6" valueMin="3.2">3.2–3.6 µm</quantity>
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. The central sternum is moderately narrow, linear to weakly lanceolate, gradually narrowing towards the apices. The striae are alternating, parallel and becoming slightly radiate near the apices;
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<quantity id="4CC3F8D1FFA2CC591869F8359ACBF7AF" box="[609,708,2024,2050]" metricMagnitude="-1" metricUnit="m" metricValue="3.175" metricValueMax="3.302" metricValueMin="3.048" pageId="1" pageNumber="257" unit="in" value="12.5" valueMax="13.0" valueMin="12.0">12–13 in</quantity>
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<quantity id="4CC3F8D1FFA2CC5918C3F8359B18F7AE" box="[715,791,2024,2051]" metricMagnitude="-2" metricUnit="m" metricValue="1.0" pageId="1" pageNumber="257" unit="mm" value="10.0">10 µm</quantity>
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. The areolae are weakly discernible in LM.
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</paragraph>
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||
<caption id="DF4405BCFFA1CC5A1A80F8EA9A69F789" ID-DOI="http://doi.org/10.5281/zenodo.5138825" ID-Zenodo-Dep="5138825" httpUri="https://zenodo.org/record/5138825/files/figure.png" pageId="2" pageNumber="258" startId="2.[136,243,1847,1869]" targetBox="[151,1435,171,1834]" targetPageId="2">
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<paragraph id="8B845534FFA1CC5A1A80F8EA9A69F789" blockId="2.[136,1452,1847,2085]" pageId="2" pageNumber="258">
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<emphasis id="B94F8926FFA1CC5A1A80F8EA993EF8E1" bold="true" box="[136,305,1847,1869]" pageId="2" pageNumber="258">FIGURES 1–25:</emphasis>
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<taxonomicName id="4C3B2EB7FFA1CC5A1B3FF8E59A78F8E0" authority="Van de Vijver" authorityName="Van de Vijver" authorityYear="2014" box="[311,631,1847,1869]" class="Bacillariophyceae" family="Fragilariaceae" genus="Staurosira" higherTaxonomySource="GBIF" kingdom="Chromista" order="Fragilariales" pageId="2" pageNumber="258" phylum="Bacillariophyta" rank="species" species="pottiezii" status="sp. nov.">
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<emphasis id="B94F8926FFA1CC5A1B3FF8E599E1F8E0" box="[311,494,1848,1869]" italics="true" pageId="2" pageNumber="258">Staurosira pottiezii</emphasis>
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Van de Vijver
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||
</taxonomicName>
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||
<taxonomicNameLabel id="A27C345DFFA1CC5A1875F8E59AC7F8E0" box="[637,712,1848,1869]" pageId="2" pageNumber="258" rank="species">sp. nov.</taxonomicNameLabel>
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||
All pictures taken from the holotype population (sample BY038). Figs 1–18. LM images. Fig. 18 shows a girdle view, whereas Figs 1–17 show valve views. Figs 19–25: SEM images. Fig. 19: Chain of two entire frustules showing the linking spines, parts of the girdle bands and the mantle. Fig. 20: External view of an entire valve showing the linking spines, the apical pore field and the striae. Fig. 21: Valvocopula with fimbriae. Fig. 22: Detail of the apical pore field showing 5 rows of small, rounded poroids separated from the striae. Fig. 23: Detail of the striae with the areolae. Note the volae forming a complex structure within the areolae. Fig. 24: Internal view of an entire valve. Fig. 25: Internal detail of the apical pore field. Scale bar represents 10 µm except for Figs 22, 23, 25 where scale bar = 1µm.
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||
</paragraph>
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||
</caption>
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||
<paragraph id="8B845534FFA0CC5B1AB5FF429BBAFDC5" blockId="3.[136,1452,158,2092]" pageId="3" pageNumber="259">
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<emphasis id="B94F8926FFA0CC5B1AB5FF429998FF15" box="[189,407,158,185]" italics="true" pageId="3" pageNumber="259">
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SEM (
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||
<figureCitation id="130049B1FFA0CC5B1B0CFF429986FF15" box="[260,393,158,185]" captionStart="FIGURES 1–25" captionStartId="2.[136,243,1847,1869]" captionTargetBox="[151,1435,171,1834]" captionTargetId="figure-25@2.[151,1435,171,1834]" captionTargetPageId="2" captionText="FIGURES 1–25: Staurosira pottiezii Van de Vijver sp. nov. All pictures taken from the holotype population (sample BY038). Figs 1–18. LM images. Fig. 18 shows a girdle view, whereas Figs 1–17 show valve views. Figs 19–25: SEM images. Fig. 19: Chain of two entire frustules showing the linking spines, parts of the girdle bands and the mantle. Fig. 20: External view of an entire valve showing the linking spines, the apical pore field and the striae. Fig. 21: Valvocopula with fimbriae. Fig. 22: Detail of the apical pore field showing 5 rows of small, rounded poroids separated from the striae. Fig. 23: Detail of the striae with the areolae. Note the volae forming a complex structure within the areolae. Fig. 24: Internal view of an entire valve. Fig. 25: Internal detail of the apical pore field. Scale bar represents 10 µm except for Figs 22, 23, 25 where scale bar = 1µm." figureDoi="http://doi.org/10.5281/zenodo.5138825" httpUri="https://zenodo.org/record/5138825/files/figure.png" pageId="3" pageNumber="259">Figs 19–25</figureCitation>
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):
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||
</emphasis>
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||
Frustules are linked by single, spatulate, lobed, solid linking spines, located on the costae at the valve face/mantle junction (
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<figureCitation id="130049B1FFA0CC5B1BEDFF1F9A6AFF71" box="[485,613,194,220]" captionStart="FIGURES 1–25" captionStartId="2.[136,243,1847,1869]" captionTargetBox="[151,1435,171,1834]" captionTargetId="figure-25@2.[151,1435,171,1834]" captionTargetPageId="2" captionText="FIGURES 1–25: Staurosira pottiezii Van de Vijver sp. nov. All pictures taken from the holotype population (sample BY038). Figs 1–18. LM images. Fig. 18 shows a girdle view, whereas Figs 1–17 show valve views. Figs 19–25: SEM images. Fig. 19: Chain of two entire frustules showing the linking spines, parts of the girdle bands and the mantle. Fig. 20: External view of an entire valve showing the linking spines, the apical pore field and the striae. Fig. 21: Valvocopula with fimbriae. Fig. 22: Detail of the apical pore field showing 5 rows of small, rounded poroids separated from the striae. Fig. 23: Detail of the striae with the areolae. Note the volae forming a complex structure within the areolae. Fig. 24: Internal view of an entire valve. Fig. 25: Internal detail of the apical pore field. Scale bar represents 10 µm except for Figs 22, 23, 25 where scale bar = 1µm." figureDoi="http://doi.org/10.5281/zenodo.5138825" httpUri="https://zenodo.org/record/5138825/files/figure.png" pageId="3" pageNumber="259">Figs 19, 21</figureCitation>
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). The valve surface is flat and smooth (
|
||
<figureCitation id="130049B1FFA0CC5B1E1EFF1F9C65FF71" box="[1046,1130,194,220]" captionStart="FIGURES 1–25" captionStartId="2.[136,243,1847,1869]" captionTargetBox="[151,1435,171,1834]" captionTargetId="figure-25@2.[151,1435,171,1834]" captionTargetPageId="2" captionText="FIGURES 1–25: Staurosira pottiezii Van de Vijver sp. nov. All pictures taken from the holotype population (sample BY038). Figs 1–18. LM images. Fig. 18 shows a girdle view, whereas Figs 1–17 show valve views. Figs 19–25: SEM images. Fig. 19: Chain of two entire frustules showing the linking spines, parts of the girdle bands and the mantle. Fig. 20: External view of an entire valve showing the linking spines, the apical pore field and the striae. Fig. 21: Valvocopula with fimbriae. Fig. 22: Detail of the apical pore field showing 5 rows of small, rounded poroids separated from the striae. Fig. 23: Detail of the striae with the areolae. Note the volae forming a complex structure within the areolae. Fig. 24: Internal view of an entire valve. Fig. 25: Internal detail of the apical pore field. Scale bar represents 10 µm except for Figs 22, 23, 25 where scale bar = 1µm." figureDoi="http://doi.org/10.5281/zenodo.5138825" httpUri="https://zenodo.org/record/5138825/files/figure.png" pageId="3" pageNumber="259">Fig. 20</figureCitation>
|
||
). The costae are rarely raised above the striae (
|
||
<figureCitation id="130049B1FFA0CC5B1B42FF3B9990FEAD" box="[330,415,230,256]" captionStart="FIGURES 1–25" captionStartId="2.[136,243,1847,1869]" captionTargetBox="[151,1435,171,1834]" captionTargetId="figure-25@2.[151,1435,171,1834]" captionTargetPageId="2" captionText="FIGURES 1–25: Staurosira pottiezii Van de Vijver sp. nov. All pictures taken from the holotype population (sample BY038). Figs 1–18. LM images. Fig. 18 shows a girdle view, whereas Figs 1–17 show valve views. Figs 19–25: SEM images. Fig. 19: Chain of two entire frustules showing the linking spines, parts of the girdle bands and the mantle. Fig. 20: External view of an entire valve showing the linking spines, the apical pore field and the striae. Fig. 21: Valvocopula with fimbriae. Fig. 22: Detail of the apical pore field showing 5 rows of small, rounded poroids separated from the striae. Fig. 23: Detail of the striae with the areolae. Note the volae forming a complex structure within the areolae. Fig. 24: Internal view of an entire valve. Fig. 25: Internal detail of the apical pore field. Scale bar represents 10 µm except for Figs 22, 23, 25 where scale bar = 1µm." figureDoi="http://doi.org/10.5281/zenodo.5138825" httpUri="https://zenodo.org/record/5138825/files/figure.png" pageId="3" pageNumber="259">Fig. 20</figureCitation>
|
||
). Apical pore fields are present on each apex, located on the valve mantle and composed of several, usually 3–5, rows of small rounded poroids (
|
||
<figureCitation id="130049B1FFA0CC5B18D4FED79B6FFE89" box="[732,864,266,292]" captionStart="FIGURES 1–25" captionStartId="2.[136,243,1847,1869]" captionTargetBox="[151,1435,171,1834]" captionTargetId="figure-25@2.[151,1435,171,1834]" captionTargetPageId="2" captionText="FIGURES 1–25: Staurosira pottiezii Van de Vijver sp. nov. All pictures taken from the holotype population (sample BY038). Figs 1–18. LM images. Fig. 18 shows a girdle view, whereas Figs 1–17 show valve views. Figs 19–25: SEM images. Fig. 19: Chain of two entire frustules showing the linking spines, parts of the girdle bands and the mantle. Fig. 20: External view of an entire valve showing the linking spines, the apical pore field and the striae. Fig. 21: Valvocopula with fimbriae. Fig. 22: Detail of the apical pore field showing 5 rows of small, rounded poroids separated from the striae. Fig. 23: Detail of the striae with the areolae. Note the volae forming a complex structure within the areolae. Fig. 24: Internal view of an entire valve. Fig. 25: Internal detail of the apical pore field. Scale bar represents 10 µm except for Figs 22, 23, 25 where scale bar = 1µm." figureDoi="http://doi.org/10.5281/zenodo.5138825" httpUri="https://zenodo.org/record/5138825/files/figure.png" pageId="3" pageNumber="259">Figs 20, 22</figureCitation>
|
||
). Internally, the apical pore fields are well-separated from the striae and formed within a depression at the valve apex (
|
||
<figureCitation id="130049B1FFA0CC5B1976FEF39BDAFEE4" box="[894,981,302,329]" captionStart="FIGURES 1–25" captionStartId="2.[136,243,1847,1869]" captionTargetBox="[151,1435,171,1834]" captionTargetId="figure-25@2.[151,1435,171,1834]" captionTargetPageId="2" captionText="FIGURES 1–25: Staurosira pottiezii Van de Vijver sp. nov. All pictures taken from the holotype population (sample BY038). Figs 1–18. LM images. Fig. 18 shows a girdle view, whereas Figs 1–17 show valve views. Figs 19–25: SEM images. Fig. 19: Chain of two entire frustules showing the linking spines, parts of the girdle bands and the mantle. Fig. 20: External view of an entire valve showing the linking spines, the apical pore field and the striae. Fig. 21: Valvocopula with fimbriae. Fig. 22: Detail of the apical pore field showing 5 rows of small, rounded poroids separated from the striae. Fig. 23: Detail of the striae with the areolae. Note the volae forming a complex structure within the areolae. Fig. 24: Internal view of an entire valve. Fig. 25: Internal detail of the apical pore field. Scale bar represents 10 µm except for Figs 22, 23, 25 where scale bar = 1µm." figureDoi="http://doi.org/10.5281/zenodo.5138825" httpUri="https://zenodo.org/record/5138825/files/figure.png" pageId="3" pageNumber="259">Fig. 25</figureCitation>
|
||
). Rimoportulae are absent. The striae are composed of narrow slit-like to rectangular areolae, running continuously from the valve face onto the mantle and decreasing in size toward the axial and mantle abvalvar areas (
|
||
<figureCitation id="130049B1FFA0CC5B1951FEAB9BEEFE3D" box="[857,993,374,400]" captionStart="FIGURES 1–25" captionStartId="2.[136,243,1847,1869]" captionTargetBox="[151,1435,171,1834]" captionTargetId="figure-25@2.[151,1435,171,1834]" captionTargetPageId="2" captionText="FIGURES 1–25: Staurosira pottiezii Van de Vijver sp. nov. All pictures taken from the holotype population (sample BY038). Figs 1–18. LM images. Fig. 18 shows a girdle view, whereas Figs 1–17 show valve views. Figs 19–25: SEM images. Fig. 19: Chain of two entire frustules showing the linking spines, parts of the girdle bands and the mantle. Fig. 20: External view of an entire valve showing the linking spines, the apical pore field and the striae. Fig. 21: Valvocopula with fimbriae. Fig. 22: Detail of the apical pore field showing 5 rows of small, rounded poroids separated from the striae. Fig. 23: Detail of the striae with the areolae. Note the volae forming a complex structure within the areolae. Fig. 24: Internal view of an entire valve. Fig. 25: Internal detail of the apical pore field. Scale bar represents 10 µm except for Figs 22, 23, 25 where scale bar = 1µm." figureDoi="http://doi.org/10.5281/zenodo.5138825" httpUri="https://zenodo.org/record/5138825/files/figure.png" pageId="3" pageNumber="259">Figs 20, 23</figureCitation>
|
||
). Areolae ca.
|
||
<quantity id="4CC3F8D1FFA0CC5B1E77FEAB9CEAFE3D" box="[1151,1253,374,401]" metricMagnitude="0" metricUnit="m" metricValue="1.3969999999999998" metricValueMax="1.524" metricValueMin="1.27" pageId="3" pageNumber="259" unit="in" value="55.0" valueMax="60.0" valueMin="50.0">50–60 in</quantity>
|
||
<quantity id="4CC3F8D1FFA0CC5B1EE5FEAB9D36FE3C" box="[1261,1337,374,401]" metricMagnitude="-2" metricUnit="m" metricValue="1.0" pageId="3" pageNumber="259" unit="mm" value="10.0">10 µm</quantity>
|
||
along the striae (
|
||
<figureCitation id="130049B1FFA0CC5B1ADDFE479925FE19" box="[213,298,410,436]" captionStart="FIGURES 1–25" captionStartId="2.[136,243,1847,1869]" captionTargetBox="[151,1435,171,1834]" captionTargetId="figure-25@2.[151,1435,171,1834]" captionTargetPageId="2" captionText="FIGURES 1–25: Staurosira pottiezii Van de Vijver sp. nov. All pictures taken from the holotype population (sample BY038). Figs 1–18. LM images. Fig. 18 shows a girdle view, whereas Figs 1–17 show valve views. Figs 19–25: SEM images. Fig. 19: Chain of two entire frustules showing the linking spines, parts of the girdle bands and the mantle. Fig. 20: External view of an entire valve showing the linking spines, the apical pore field and the striae. Fig. 21: Valvocopula with fimbriae. Fig. 22: Detail of the apical pore field showing 5 rows of small, rounded poroids separated from the striae. Fig. 23: Detail of the striae with the areolae. Note the volae forming a complex structure within the areolae. Fig. 24: Internal view of an entire valve. Fig. 25: Internal detail of the apical pore field. Scale bar represents 10 µm except for Figs 22, 23, 25 where scale bar = 1µm." figureDoi="http://doi.org/10.5281/zenodo.5138825" httpUri="https://zenodo.org/record/5138825/files/figure.png" pageId="3" pageNumber="259">Fig. 23</figureCitation>
|
||
). There are usually 3–4 mantle areolae (
|
||
<figureCitation id="130049B1FFA0CC5B18F8FE479B4AFE19" box="[752,837,410,436]" captionStart="FIGURES 1–25" captionStartId="2.[136,243,1847,1869]" captionTargetBox="[151,1435,171,1834]" captionTargetId="figure-25@2.[151,1435,171,1834]" captionTargetPageId="2" captionText="FIGURES 1–25: Staurosira pottiezii Van de Vijver sp. nov. All pictures taken from the holotype population (sample BY038). Figs 1–18. LM images. Fig. 18 shows a girdle view, whereas Figs 1–17 show valve views. Figs 19–25: SEM images. Fig. 19: Chain of two entire frustules showing the linking spines, parts of the girdle bands and the mantle. Fig. 20: External view of an entire valve showing the linking spines, the apical pore field and the striae. Fig. 21: Valvocopula with fimbriae. Fig. 22: Detail of the apical pore field showing 5 rows of small, rounded poroids separated from the striae. Fig. 23: Detail of the striae with the areolae. Note the volae forming a complex structure within the areolae. Fig. 24: Internal view of an entire valve. Fig. 25: Internal detail of the apical pore field. Scale bar represents 10 µm except for Figs 22, 23, 25 where scale bar = 1µm." figureDoi="http://doi.org/10.5281/zenodo.5138825" httpUri="https://zenodo.org/record/5138825/files/figure.png" pageId="3" pageNumber="259">Fig. 20</figureCitation>
|
||
). The mantle abvalvar edge has a ridge that is running continuously around the valve perimeter (
|
||
<figureCitation id="130049B1FFA0CC5B1850FE639AD5FE75" box="[600,730,446,472]" captionStart="FIGURES 1–25" captionStartId="2.[136,243,1847,1869]" captionTargetBox="[151,1435,171,1834]" captionTargetId="figure-25@2.[151,1435,171,1834]" captionTargetPageId="2" captionText="FIGURES 1–25: Staurosira pottiezii Van de Vijver sp. nov. All pictures taken from the holotype population (sample BY038). Figs 1–18. LM images. Fig. 18 shows a girdle view, whereas Figs 1–17 show valve views. Figs 19–25: SEM images. Fig. 19: Chain of two entire frustules showing the linking spines, parts of the girdle bands and the mantle. Fig. 20: External view of an entire valve showing the linking spines, the apical pore field and the striae. Fig. 21: Valvocopula with fimbriae. Fig. 22: Detail of the apical pore field showing 5 rows of small, rounded poroids separated from the striae. Fig. 23: Detail of the striae with the areolae. Note the volae forming a complex structure within the areolae. Fig. 24: Internal view of an entire valve. Fig. 25: Internal detail of the apical pore field. Scale bar represents 10 µm except for Figs 22, 23, 25 where scale bar = 1µm." figureDoi="http://doi.org/10.5281/zenodo.5138825" httpUri="https://zenodo.org/record/5138825/files/figure.png" pageId="3" pageNumber="259">Figs 19, 20</figureCitation>
|
||
). The ridge is sometime ornamented with blister-like depositions of silica located toward the very edge of the mantle (
|
||
<figureCitation id="130049B1FFA0CC5B18E2FE3F9B30FE51" box="[746,831,482,508]" captionStart="FIGURES 1–25" captionStartId="2.[136,243,1847,1869]" captionTargetBox="[151,1435,171,1834]" captionTargetId="figure-25@2.[151,1435,171,1834]" captionTargetPageId="2" captionText="FIGURES 1–25: Staurosira pottiezii Van de Vijver sp. nov. All pictures taken from the holotype population (sample BY038). Figs 1–18. LM images. Fig. 18 shows a girdle view, whereas Figs 1–17 show valve views. Figs 19–25: SEM images. Fig. 19: Chain of two entire frustules showing the linking spines, parts of the girdle bands and the mantle. Fig. 20: External view of an entire valve showing the linking spines, the apical pore field and the striae. Fig. 21: Valvocopula with fimbriae. Fig. 22: Detail of the apical pore field showing 5 rows of small, rounded poroids separated from the striae. Fig. 23: Detail of the striae with the areolae. Note the volae forming a complex structure within the areolae. Fig. 24: Internal view of an entire valve. Fig. 25: Internal detail of the apical pore field. Scale bar represents 10 µm except for Figs 22, 23, 25 where scale bar = 1µm." figureDoi="http://doi.org/10.5281/zenodo.5138825" httpUri="https://zenodo.org/record/5138825/files/figure.png" pageId="3" pageNumber="259">Fig. 19</figureCitation>
|
||
). The volae are clearly developed, forming a complex structure within the areolae (
|
||
<figureCitation id="130049B1FFA0CC5B1BD9FDDB9A28FD8D" box="[465,551,518,544]" captionStart="FIGURES 1–25" captionStartId="2.[136,243,1847,1869]" captionTargetBox="[151,1435,171,1834]" captionTargetId="figure-25@2.[151,1435,171,1834]" captionTargetPageId="2" captionText="FIGURES 1–25: Staurosira pottiezii Van de Vijver sp. nov. All pictures taken from the holotype population (sample BY038). Figs 1–18. LM images. Fig. 18 shows a girdle view, whereas Figs 1–17 show valve views. Figs 19–25: SEM images. Fig. 19: Chain of two entire frustules showing the linking spines, parts of the girdle bands and the mantle. Fig. 20: External view of an entire valve showing the linking spines, the apical pore field and the striae. Fig. 21: Valvocopula with fimbriae. Fig. 22: Detail of the apical pore field showing 5 rows of small, rounded poroids separated from the striae. Fig. 23: Detail of the striae with the areolae. Note the volae forming a complex structure within the areolae. Fig. 24: Internal view of an entire valve. Fig. 25: Internal detail of the apical pore field. Scale bar represents 10 µm except for Figs 22, 23, 25 where scale bar = 1µm." figureDoi="http://doi.org/10.5281/zenodo.5138825" httpUri="https://zenodo.org/record/5138825/files/figure.png" pageId="3" pageNumber="259">Fig. 23</figureCitation>
|
||
). Internally, the costae are raised and slightly thickened compared to the striae (
|
||
<figureCitation id="130049B1FFA0CC5B1A98FDF798E9FDE9" box="[144,230,554,580]" captionStart="FIGURES 1–25" captionStartId="2.[136,243,1847,1869]" captionTargetBox="[151,1435,171,1834]" captionTargetId="figure-25@2.[151,1435,171,1834]" captionTargetPageId="2" captionText="FIGURES 1–25: Staurosira pottiezii Van de Vijver sp. nov. All pictures taken from the holotype population (sample BY038). Figs 1–18. LM images. Fig. 18 shows a girdle view, whereas Figs 1–17 show valve views. Figs 19–25: SEM images. Fig. 19: Chain of two entire frustules showing the linking spines, parts of the girdle bands and the mantle. Fig. 20: External view of an entire valve showing the linking spines, the apical pore field and the striae. Fig. 21: Valvocopula with fimbriae. Fig. 22: Detail of the apical pore field showing 5 rows of small, rounded poroids separated from the striae. Fig. 23: Detail of the striae with the areolae. Note the volae forming a complex structure within the areolae. Fig. 24: Internal view of an entire valve. Fig. 25: Internal detail of the apical pore field. Scale bar represents 10 µm except for Figs 22, 23, 25 where scale bar = 1µm." figureDoi="http://doi.org/10.5281/zenodo.5138825" httpUri="https://zenodo.org/record/5138825/files/figure.png" pageId="3" pageNumber="259">Fig. 24</figureCitation>
|
||
). The girdle bands are open and lack perforations. (
|
||
<figureCitation id="130049B1FFA0CC5B1938FDF79BBAFDE9" box="[816,949,554,580]" captionStart="FIGURES 1–25" captionStartId="2.[136,243,1847,1869]" captionTargetBox="[151,1435,171,1834]" captionTargetId="figure-25@2.[151,1435,171,1834]" captionTargetPageId="2" captionText="FIGURES 1–25: Staurosira pottiezii Van de Vijver sp. nov. All pictures taken from the holotype population (sample BY038). Figs 1–18. LM images. Fig. 18 shows a girdle view, whereas Figs 1–17 show valve views. Figs 19–25: SEM images. Fig. 19: Chain of two entire frustules showing the linking spines, parts of the girdle bands and the mantle. Fig. 20: External view of an entire valve showing the linking spines, the apical pore field and the striae. Fig. 21: Valvocopula with fimbriae. Fig. 22: Detail of the apical pore field showing 5 rows of small, rounded poroids separated from the striae. Fig. 23: Detail of the striae with the areolae. Note the volae forming a complex structure within the areolae. Fig. 24: Internal view of an entire valve. Fig. 25: Internal detail of the apical pore field. Scale bar represents 10 µm except for Figs 22, 23, 25 where scale bar = 1µm." figureDoi="http://doi.org/10.5281/zenodo.5138825" httpUri="https://zenodo.org/record/5138825/files/figure.png" pageId="3" pageNumber="259">Figs 19–22</figureCitation>
|
||
). The valvocopula is fimbriate (
|
||
<figureCitation id="130049B1FFA0CC5B1F28FDF79D7DFDE9" box="[1312,1394,554,580]" captionStart="FIGURES 1–25" captionStartId="2.[136,243,1847,1869]" captionTargetBox="[151,1435,171,1834]" captionTargetId="figure-25@2.[151,1435,171,1834]" captionTargetPageId="2" captionText="FIGURES 1–25: Staurosira pottiezii Van de Vijver sp. nov. All pictures taken from the holotype population (sample BY038). Figs 1–18. LM images. Fig. 18 shows a girdle view, whereas Figs 1–17 show valve views. Figs 19–25: SEM images. Fig. 19: Chain of two entire frustules showing the linking spines, parts of the girdle bands and the mantle. Fig. 20: External view of an entire valve showing the linking spines, the apical pore field and the striae. Fig. 21: Valvocopula with fimbriae. Fig. 22: Detail of the apical pore field showing 5 rows of small, rounded poroids separated from the striae. Fig. 23: Detail of the striae with the areolae. Note the volae forming a complex structure within the areolae. Fig. 24: Internal view of an entire valve. Fig. 25: Internal detail of the apical pore field. Scale bar represents 10 µm except for Figs 22, 23, 25 where scale bar = 1µm." figureDoi="http://doi.org/10.5281/zenodo.5138825" httpUri="https://zenodo.org/record/5138825/files/figure.png" pageId="3" pageNumber="259">Fig. 21</figureCitation>
|
||
) and wider than the other, quite narrow and usually broken, copulae (
|
||
<figureCitation id="130049B1FFA0CC5B195CFD939BA7FDC5" box="[852,936,590,616]" captionStart="FIGURES 1–25" captionStartId="2.[136,243,1847,1869]" captionTargetBox="[151,1435,171,1834]" captionTargetId="figure-25@2.[151,1435,171,1834]" captionTargetPageId="2" captionText="FIGURES 1–25: Staurosira pottiezii Van de Vijver sp. nov. All pictures taken from the holotype population (sample BY038). Figs 1–18. LM images. Fig. 18 shows a girdle view, whereas Figs 1–17 show valve views. Figs 19–25: SEM images. Fig. 19: Chain of two entire frustules showing the linking spines, parts of the girdle bands and the mantle. Fig. 20: External view of an entire valve showing the linking spines, the apical pore field and the striae. Fig. 21: Valvocopula with fimbriae. Fig. 22: Detail of the apical pore field showing 5 rows of small, rounded poroids separated from the striae. Fig. 23: Detail of the striae with the areolae. Note the volae forming a complex structure within the areolae. Fig. 24: Internal view of an entire valve. Fig. 25: Internal detail of the apical pore field. Scale bar represents 10 µm except for Figs 22, 23, 25 where scale bar = 1µm." figureDoi="http://doi.org/10.5281/zenodo.5138825" httpUri="https://zenodo.org/record/5138825/files/figure.png" pageId="3" pageNumber="259">Fig. 19</figureCitation>
|
||
).
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C32106BFFFA0CC5B1AB5FDAF9B1BFD78" pageId="3" pageNumber="259" type="materials_examined">
|
||
<paragraph id="8B845534FFA0CC5B1AB5FDAF9B1BFD78" blockId="3.[136,1452,158,2092]" pageId="3" pageNumber="259">
|
||
<emphasis id="B94F8926FFA0CC5B1AB5FDAF98F7FD21" bold="true" box="[189,248,626,652]" pageId="3" pageNumber="259">Type</emphasis>
|
||
:—
|
||
<materialsCitation id="3B535F69FFA0CC5B1B14FDAF9B1FFD78" collectingDate="2009-01-12" collectorName="Leg. B. Van de Vijver" country="Antarctica" county="University of Antwerp" latitude="-62.649055" location="Pool" longLatPrecision="1" longitude="-60.974167" municipality="Van de Vijver" pageId="3" pageNumber="259" specimenCount="1" typeStatus="holotype">
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||
<collectingCountry id="F32C15A4FFA0CC5B1B14FDAF99B5FD21" box="[284,442,626,652]" name="Antarctica" pageId="3" pageNumber="259">ANTARTICA</collectingCountry>
|
||
.
|
||
<location id="8EE403EFFFA0CC5B1BC5FDAF9A0FFD21" LSID="urn:lsid:plazi:treatment:0392E422FFA2CC5B1A80F9C9995EF781:8EE403EFFFA0CC5B1BC5FDAF9A0FFD21" box="[461,512,626,652]" country="Antarctica" county="University of Antwerp" latitude="-62.649055" longLatPrecision="1" longitude="-60.974167" municipality="Van de Vijver" name="Pool" pageId="3" pageNumber="259">Pool</location>
|
||
near
|
||
<location id="8EE403EFFFA0CC5B1840FDAE9ADAFD21" LSID="urn:lsid:plazi:treatment:0392E422FFA2CC5B1A80F9C9995EF781:8EE403EFFFA0CC5B1840FDAE9ADAFD21" box="[584,725,626,653]" country="Antarctica" county="University of Antwerp" latitude="-62.649055" longLatPrecision="1" longitude="-60.974167" municipality="Van de Vijver" name="Domo Lake" pageId="3" pageNumber="259">Domo Lake</location>
|
||
,
|
||
<location id="8EE403EFFFA0CC5B18EDFDAE9BADFD21" LSID="urn:lsid:plazi:treatment:0392E422FFA2CC5B1A80F9C9995EF781:8EE403EFFFA0CC5B18EDFDAE9BADFD21" box="[741,930,626,653]" country="Antarctica" county="University of Antwerp" latitude="-62.649055" longLatPrecision="1" longitude="-60.974167" municipality="Van de Vijver" name="Byers Peninsula" pageId="3" pageNumber="259">Byers Peninsula</location>
|
||
,
|
||
<location id="8EE403EFFFA0CC5B19BAFDAF9C74FD21" LSID="urn:lsid:plazi:treatment:0392E422FFA2CC5B1A80F9C9995EF781:8EE403EFFFA0CC5B19BAFDAF9C74FD21" box="[946,1147,626,652]" country="Antarctica" county="University of Antwerp" latitude="-62.649055" longLatPrecision="1" longitude="-60.974167" municipality="Van de Vijver" name="Livingston Island" pageId="3" pageNumber="259">Livingston Island</location>
|
||
(
|
||
<location id="8EE403EFFFA0CC5B1E87FDAF9D90FD20" LSID="urn:lsid:plazi:treatment:0392E422FFA2CC5B1A80F9C9995EF781:8EE403EFFFA0CC5B1E87FDAF9D90FD20" box="[1167,1439,626,653]" country="Antarctica" county="University of Antwerp" latitude="-62.649055" longLatPrecision="1" longitude="-60.974167" municipality="Van de Vijver" name="South Shetland Islands" pageId="3" pageNumber="259">South Shetland Islands</location>
|
||
), sample BY038 (
|
||
<geoCoordinate id="EE0F33F3FFA0CC5B1B4AFD4B99E9FD1D" box="[322,486,662,689]" degrees="62" direction="south" minutes="38" orientation="latitude" pageId="3" pageNumber="259" precision="1" seconds="56.6" value="-62.649055">62°38’56.6” S</geoCoordinate>
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,
|
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<geoCoordinate id="EE0F33F3FFA0CC5B1BFCFD4B9AABFD1C" box="[500,676,662,689]" degrees="60" direction="west" minutes="58" orientation="longitude" pageId="3" pageNumber="259" precision="1" seconds="27.0" value="-60.974167">60°58’27.0” W</geoCoordinate>
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),
|
||
<collectorName id="26CE30E2FFA0CC5B18B1FD4A9BBAFD1D" box="[697,949,662,689]" pageId="3" pageNumber="259">
|
||
Leg. B.
|
||
<collectingMunicipality id="6BE0CF4EFFA0CC5B191EFD4A9BBAFD1D" box="[790,949,662,689]" pageId="3" pageNumber="259">Van de Vijver</collectingMunicipality>
|
||
</collectorName>
|
||
, coll. date
|
||
<date id="FF8573F4FFA0CC5B1E39FD4B9CBEFD1D" box="[1073,1201,662,688]" pageId="3" pageNumber="259" value="2009-01-12">
|
||
<collectingDate id="EFC18A1CFFA0CC5B1E39FD4B9CBEFD1D" box="[1073,1201,662,688]" pageId="3" pageNumber="259" value="2009-01-12">12/01/2009</collectingDate>
|
||
</date>
|
||
(BR-4325,
|
||
<typeStatus id="5480EB96FFA0CC5B1F31FD4B9DABFD1D" box="[1337,1444,662,688]" pageId="3" pageNumber="259" type="holotype">holotype</typeStatus>
|
||
!,
|
||
<collectingCounty id="62E52DB8FFA0CC5B1A80FD679988FD79" box="[136,391,698,724]" pageId="3" pageNumber="259">University of Antwerp</collectingCounty>
|
||
, Belgium slide PLP-226, isotypes)
|
||
</materialsCitation>
|
||
.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C32106BFFFA0CC5B1AB5FD039D33F945" pageId="3" pageNumber="259" type="etymology">
|
||
<paragraph id="8B845534FFA0CC5B1AB5FD039D55FD54" blockId="3.[136,1452,158,2092]" box="[189,1370,734,761]" pageId="3" pageNumber="259">
|
||
<emphasis id="B94F8926FFA0CC5B1AB5FD039931FD55" bold="true" box="[189,318,734,760]" pageId="3" pageNumber="259">Etymology</emphasis>
|
||
:—This species is dedicated to the senior author´s dear friend Jean Pottiez (Wilrijk,
|
||
<collectingCountry id="F32C15A4FFA0CC5B1EE1FD039D40FD54" box="[1257,1359,734,761]" name="Belgium" pageId="3" pageNumber="259">Belgium</collectingCountry>
|
||
).
|
||
</paragraph>
|
||
<paragraph id="8B845534FFA0CC5B1AB5FCDF9D33F945" blockId="3.[136,1452,158,2092]" pageId="3" pageNumber="259">
|
||
<emphasis id="B94F8926FFA0CC5B1AB5FCDF998EFCB1" bold="true" box="[189,385,770,796]" pageId="3" pageNumber="259">Observations:—</emphasis>
|
||
<taxonomicName id="4C3B2EB7FFA0CC5B1B89FCDE9A57FCB1" authorityName="Van de Vijver" authorityYear="2014" box="[385,600,771,797]" class="Bacillariophyceae" family="Fragilariaceae" genus="Staurosira" higherTaxonomySource="GBIF" kingdom="Chromista" order="Fragilariales" pageId="3" pageNumber="259" phylum="Bacillariophyta" rank="species" species="pottiezii">
|
||
<emphasis id="B94F8926FFA0CC5B1B89FCDE9A57FCB1" box="[385,600,771,797]" italics="true" pageId="3" pageNumber="259">Staurosira pottiezii</emphasis>
|
||
</taxonomicName>
|
||
resembles other species in the genus
|
||
<taxonomicName id="4C3B2EB7FFA0CC5B19F5FCDE9C7DFCB0" box="[1021,1138,771,797]" class="Bacillariophyceae" family="Fragilariaceae" genus="Staurosira" higherTaxonomySource="GBIF" kingdom="Chromista" order="Fragilariales" pageId="3" pageNumber="259" phylum="Bacillariophyta" rank="genus">
|
||
<emphasis id="B94F8926FFA0CC5B19F5FCDE9C7DFCB0" box="[1021,1138,771,797]" italics="true" pageId="3" pageNumber="259">Staurosira</emphasis>
|
||
</taxonomicName>
|
||
, sharing with them the
|
||
<typeStatus id="5480EB96FFA0CC5B1F73FCDE9DA4FCB0" box="[1403,1451,771,797]" pageId="3" pageNumber="259">type</typeStatus>
|
||
of striae, position of spines, and characteristics of the apical pore fields and girdle bands. The species can be confused with several other
|
||
<taxonomicName id="4C3B2EB7FFA0CC5B1B6CFC9699D6FCC8" box="[356,473,843,869]" class="Bacillariophyceae" family="Fragilariaceae" genus="Staurosira" higherTaxonomySource="GBIF" kingdom="Chromista" order="Fragilariales" pageId="3" pageNumber="259" phylum="Bacillariophyta" rank="genus">
|
||
<emphasis id="B94F8926FFA0CC5B1B6CFC9699D6FCC8" box="[356,473,843,869]" italics="true" pageId="3" pageNumber="259">Staurosira</emphasis>
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName id="4C3B2EB7FFA0CC5B181FFC979B0CFCC9" box="[535,771,842,868]" class="Bacillariophyceae" family="Fragilariaceae" genus="Staurosirella" kingdom="Chromista" order="Fragilariales" pageId="3" pageNumber="259" phylum="Bacillariophyta" rank="species" species="undetermined">
|
||
<emphasis id="B94F8926FFA0CC5B181FFC979AA8FCC9" box="[535,679,842,868]" italics="true" pageId="3" pageNumber="259">Staurosirella</emphasis>
|
||
species
|
||
</taxonomicName>
|
||
presenting a similar apically elongated valve outline with undulated margins.
|
||
<taxonomicName id="4C3B2EB7FFA0CC5B1B61FCB39C7AFC25" authority="(Hust. 1959: 29) E. Morales (2005: 118)" authorityName="E. Morales" authorityPageNumber="118" authorityYear="2005" baseAuthorityName="Hust." baseAuthorityPageNumber="29" baseAuthorityYear="1959" box="[361,1141,878,905]" class="Bacillariophyceae" family="Fragilariaceae" genus="Staurosirella" higherTaxonomySource="GBIF" kingdom="Chromista" order="Fragilariales" pageId="3" pageNumber="259" phylum="Bacillariophyta" rank="species" species="oldenburgiana">
|
||
<emphasis id="B94F8926FFA0CC5B1B61FCB39AA9FC25" box="[361,678,878,904]" italics="true" pageId="3" pageNumber="259">Staurosirella oldenburgiana</emphasis>
|
||
(Hust. 1959: 29) E.
|
||
<bibRefCitation id="EFAA28C5FFA0CC5B1980FCB39C7AFC25" author="Morales, E. A." box="[904,1141,878,905]" pageId="3" pageNumber="259" pagination="113 - 133" refId="ref7308" refString="Morales, E. A. (2005) Observations of the morphology of some known and new fragilarioid diatoms (Bacillariophyceae) from rivers in the USA. Phycological Research 53: 113 - 133. http: // dx. doi. org / 10.1111 / j. 1440 - 1835.2005. tb 00363. x" type="journal article" year="2005">Morales (2005: 118)</bibRefCitation>
|
||
</taxonomicName>
|
||
has narrower valves (max. valve width <
|
||
<quantity id="4CC3F8D1FFA0CC5B1B22FC4F997BFC00" box="[298,372,914,941]" metricMagnitude="-3" metricUnit="m" metricValue="2.5" pageId="3" pageNumber="259" unit="mm" value="2.5">2.5µm</quantity>
|
||
) with narrower, more protracted apices. The costae bear only rudimentary spines that never show the spatulate structure that can be found in
|
||
<taxonomicName id="4C3B2EB7FFA0CC5B18B2FC6A9B3DFC7D" authorityName="Van de Vijver" authorityYear="2014" box="[698,818,951,977]" class="Bacillariophyceae" family="Fragilariaceae" genus="Staurosira" higherTaxonomySource="GBIF" kingdom="Chromista" order="Fragilariales" pageId="3" pageNumber="259" phylum="Bacillariophyta" rank="species" species="pottiezii">
|
||
<emphasis id="B94F8926FFA0CC5B18B2FC6A9B3DFC7D" box="[698,818,951,977]" italics="true" pageId="3" pageNumber="259">S. pottiezii</emphasis>
|
||
</taxonomicName>
|
||
. The apical pore fields are larger with larger poroids in
|
||
<taxonomicName id="4C3B2EB7FFA0CC5B1A80FC069947FC59" authorityName="E. Morales" authorityYear="2005" baseAuthorityName="Hust." baseAuthorityYear="1959" box="[136,328,986,1013]" class="Bacillariophyceae" family="Fragilariaceae" genus="Staurosirella" higherTaxonomySource="GBIF" kingdom="Chromista" order="Fragilariales" pageId="3" pageNumber="259" phylum="Bacillariophyta" rank="species" species="oldenburgiana">
|
||
<emphasis id="B94F8926FFA0CC5B1A80FC069947FC59" box="[136,328,986,1013]" italics="true" pageId="3" pageNumber="259">S. oldenburgiana</emphasis>
|
||
</taxonomicName>
|
||
compared to the small poroids in
|
||
<taxonomicName id="4C3B2EB7FFA0CC5B18C0FC069B31FC59" authorityName="Van de Vijver" authorityYear="2014" box="[712,830,987,1013]" class="Bacillariophyceae" family="Fragilariaceae" genus="Staurosira" higherTaxonomySource="GBIF" kingdom="Chromista" order="Fragilariales" pageId="3" pageNumber="259" phylum="Bacillariophyta" rank="species" species="pottiezii">
|
||
<emphasis id="B94F8926FFA0CC5B18C0FC069B31FC59" box="[712,830,987,1013]" italics="true" pageId="3" pageNumber="259">S. pottiezii</emphasis>
|
||
</taxonomicName>
|
||
. Moreover, at the apices in valves of
|
||
<taxonomicName id="4C3B2EB7FFA0CC5B1EECFC069DABFC59" authorityName="E. Morales" authorityYear="2005" baseAuthorityName="Hust." baseAuthorityYear="1959" box="[1252,1444,986,1013]" class="Bacillariophyceae" family="Fragilariaceae" genus="Staurosirella" higherTaxonomySource="GBIF" kingdom="Chromista" order="Fragilariales" pageId="3" pageNumber="259" phylum="Bacillariophyta" rank="species" species="oldenburgiana">
|
||
<emphasis id="B94F8926FFA0CC5B1EECFC069DABFC59" box="[1252,1444,986,1013]" italics="true" pageId="3" pageNumber="259">S. oldenburgiana</emphasis>
|
||
</taxonomicName>
|
||
, striae are absent isolating the apical pore field from the striae by a hyaline zone.
|
||
<taxonomicName id="4C3B2EB7FFA0CC5B1E34FC239901FB91" authority="E. Morales (2005: 122)" authorityName="E. Morales" authorityPageNumber="122" authorityYear="2005" class="Bacillariophyceae" family="Fragilariaceae" genus="Staurosirella" higherTaxonomySource="GBIF" kingdom="Chromista" order="Fragilariales" pageId="3" pageNumber="259" phylum="Bacillariophyta" rank="species" species="confusa">
|
||
<emphasis id="B94F8926FFA0CC5B1E34FC239D22FBB5" box="[1084,1325,1022,1048]" italics="true" pageId="3" pageNumber="259">Staurosirella confusa</emphasis>
|
||
E.
|
||
<bibRefCitation id="EFAA28C5FFA0CC5B1F44FC239901FB91" author="Morales, E. A." pageId="3" pageNumber="259" pagination="113 - 133" refId="ref7308" refString="Morales, E. A. (2005) Observations of the morphology of some known and new fragilarioid diatoms (Bacillariophyceae) from rivers in the USA. Phycological Research 53: 113 - 133. http: // dx. doi. org / 10.1111 / j. 1440 - 1835.2005. tb 00363. x" type="journal article" year="2005">Morales (2005: 122)</bibRefCitation>
|
||
</taxonomicName>
|
||
has a different valve outline, being much more lanceolate with acutely rounded, protracted apices. On average, valves are broader for any given length (width
|
||
<quantity id="4CC3F8D1FFA0CC5B18F4FB9B9B71FBCC" box="[764,894,1094,1121]" metricMagnitude="-3" metricUnit="m" metricValue="4.0" metricValueMax="4.5" metricValueMin="3.5" pageId="3" pageNumber="259" unit="mm" value="4.0" valueMax="4.5" valueMin="3.5">3.5–4.5 µm</quantity>
|
||
) in
|
||
<taxonomicName id="4C3B2EB7FFA0CC5B19A3FB9A9C11FBCD" authorityName="E. Morales" authorityYear="2005" box="[939,1054,1094,1121]" class="Bacillariophyceae" family="Fragilariaceae" genus="Staurosirella" higherTaxonomySource="GBIF" kingdom="Chromista" order="Fragilariales" pageId="3" pageNumber="259" phylum="Bacillariophyta" rank="species" species="confusa">
|
||
<emphasis id="B94F8926FFA0CC5B19A3FB9A9C11FBCD" box="[939,1054,1094,1121]" italics="true" pageId="3" pageNumber="259">S. confusa</emphasis>
|
||
</taxonomicName>
|
||
. The single apical pore field in this taxon is much larger with up to 10 rows of large, rounded poroids. Also in this taxon, between the striae, often two spines can be observed, but despite this, ribbon-like colonies have never been observed. Instead,
|
||
<taxonomicName id="4C3B2EB7FFA0CC5B1EC3FB529D30FB05" authorityName="E. Morales" authorityYear="2005" box="[1227,1343,1166,1193]" class="Bacillariophyceae" family="Fragilariaceae" genus="Staurosirella" higherTaxonomySource="GBIF" kingdom="Chromista" order="Fragilariales" pageId="3" pageNumber="259" phylum="Bacillariophyta" rank="species" species="confusa">
|
||
<emphasis id="B94F8926FFA0CC5B1EC3FB529D30FB05" box="[1227,1343,1166,1193]" italics="true" pageId="3" pageNumber="259">S. confusa</emphasis>
|
||
</taxonomicName>
|
||
produces stellate colonies (
|
||
<bibRefCitation id="EFAA28C5FFA0CC5B1B46FB6F99FDFB60" author="Morales, E. A." box="[334,498,1202,1229]" pageId="3" pageNumber="259" pagination="113 - 133" refId="ref7308" refString="Morales, E. A. (2005) Observations of the morphology of some known and new fragilarioid diatoms (Bacillariophyceae) from rivers in the USA. Phycological Research 53: 113 - 133. http: // dx. doi. org / 10.1111 / j. 1440 - 1835.2005. tb 00363. x" type="journal article" year="2005">Morales 2005</bibRefCitation>
|
||
).
|
||
<taxonomicName id="4C3B2EB7FFA0CC5B180EFB6E9D15FB61" authority="(Ehrenb. 1840: 212) P. B. Hamilton" authorityName="P. B. Hamilton" baseAuthorityName="Ehrenb." baseAuthorityPageNumber="212" baseAuthorityYear="1840" box="[518,1306,1202,1229]" class="Bacillariophyceae" family="Fragilariaceae" genus="Staurosira" higherTaxonomySource="GBIF" kingdom="Chromista" order="Fragilariales" pageId="3" pageNumber="259" phylum="Bacillariophyta" rank="variety" species="construens" variety="binodis">
|
||
<emphasis id="B94F8926FFA0CC5B180EFB6E9AF2FB61" box="[518,765,1203,1229]" italics="true" pageId="3" pageNumber="259">Staurosira construens</emphasis>
|
||
var.
|
||
<emphasis id="B94F8926FFA0CC5B1930FB6F9B85FB61" box="[824,906,1202,1228]" italics="true" pageId="3" pageNumber="259">binodis</emphasis>
|
||
(Ehrenb. 1840: 212) P.B.Hamilton
|
||
</taxonomicName>
|
||
in
|
||
<bibRefCitation id="EFAA28C5FFA0CC5B1F4AFB6F9930FB5D" author="Hamilton, P. B. & Poulin, M. & Charles, D. F. & Angell, M." pageId="3" pageNumber="259" pagination="25 - 36" refId="ref6423" refString="Hamilton, P. B., Poulin, M., Charles, D. F. & Angell, M. (1992) Americanarum Diatomarum Exsiccata: CANA, Voucher Slides from Eight Acidic Lakes in Northeastern North America. Diatom Research 7 (1): 25 - 36. http: // dx. doi. org / 10.1080 / 0269249 x. 1992.9705195" type="journal article" year="1992">Hamilton et al. (1992: 29)</bibRefCitation>
|
||
shows a similar valve outline, similar spine structure and similar ribbon-like colonies, but it differs from
|
||
<taxonomicName id="4C3B2EB7FFA0CC5B1ACEFB269933FAB9" authorityName="Van de Vijver" authorityYear="2014" box="[198,316,1275,1301]" class="Bacillariophyceae" family="Fragilariaceae" genus="Staurosira" higherTaxonomySource="GBIF" kingdom="Chromista" order="Fragilariales" pageId="3" pageNumber="259" phylum="Bacillariophyta" rank="species" species="pottiezii">
|
||
<emphasis id="B94F8926FFA0CC5B1ACEFB269933FAB9" box="[198,316,1275,1301]" italics="true" pageId="3" pageNumber="259">S. pottiezii</emphasis>
|
||
</taxonomicName>
|
||
in having larger valve dimensions (width 4.5–6.0 µm), smaller apical pore fields with only two rows of small poroids, and smaller areolae (
|
||
<bibRefCitation id="EFAA28C5FFA0CC5B184FFAC39AE3FA94" author="Morales, E. A." box="[583,748,1310,1337]" pageId="3" pageNumber="259" pagination="113 - 133" refId="ref7308" refString="Morales, E. A. (2005) Observations of the morphology of some known and new fragilarioid diatoms (Bacillariophyceae) from rivers in the USA. Phycological Research 53: 113 - 133. http: // dx. doi. org / 10.1111 / j. 1440 - 1835.2005. tb 00363. x" type="journal article" year="2005">Morales 2005</bibRefCitation>
|
||
). On the sub-Antarctic islands in the southern Indian Ocean, a similar taxon was found and identified by several authors as
|
||
<taxonomicName id="4C3B2EB7FFA0CC5B196EFA9F9C48FAF1" box="[870,1095,1346,1372]" class="Bacillariophyceae" family="Fragilariaceae" genus="Fragilaria" higherTaxonomySource="GBIF" kingdom="Chromista" order="Fragilariales" pageId="3" pageNumber="259" phylum="Bacillariophyta" rank="species" species="alpestris">
|
||
<emphasis id="B94F8926FFA0CC5B196EFA9F9C48FAF1" box="[870,1095,1346,1372]" italics="true" pageId="3" pageNumber="259">Fragilaria alpestris</emphasis>
|
||
</taxonomicName>
|
||
[also reported as
|
||
<taxonomicName id="4C3B2EB7FFA0CC5B1F13FA9F9A5AFA2C" authority="(Krasske) Le Cohu (1999: 826)" authorityName="Le Cohu" authorityPageNumber="826" authorityYear="1999" baseAuthorityName="Krasske" class="Bacillariophyceae" family="Fragilariaceae" genus="Staurosirella" higherTaxonomySource="GBIF" kingdom="Chromista" order="Fragilariales" pageId="3" pageNumber="259" phylum="Bacillariophyta" rank="species" species="alpestris">
|
||
<emphasis id="B94F8926FFA0CC5B1F13FA9F98E7FA2D" italics="true" pageId="3" pageNumber="259">Staurosirella alpestris</emphasis>
|
||
(Krasske)
|
||
<bibRefCitation id="EFAA28C5FFA0CC5B1B6EFABA9A5AFA2C" author="Le Cohu, R." box="[358,597,1382,1409]" pageId="3" pageNumber="259" pagination="821 - 834" refId="ref7188" refString="Le Cohu, R. (1999). Revision des principales especes de Fragilariales (Bacillariophyta) des iles Kerguelen. Canadian Journal of Botany 77: 821 - 834. http: // dx. doi. org / 10.1139 / b 99 - 035" type="journal article" year="1999">Le Cohu (1999: 826)</bibRefCitation>
|
||
</taxonomicName>
|
||
or
|
||
<taxonomicName id="4C3B2EB7FFA0CC5B1874FABA9CE5FA2C" authority="(Krasske) Van de Vijver & Beyens" authorityName="Van de Vijver & Beyens" baseAuthorityName="Krasske" box="[636,1258,1382,1409]" class="Bacillariophyceae" family="Fragilariaceae" genus="Staurosira" higherTaxonomySource="GBIF" kingdom="Chromista" order="Fragilariales" pageId="3" pageNumber="259" phylum="Bacillariophyta" rank="species" species="alpestris">
|
||
<emphasis id="B94F8926FFA0CC5B1874FABA9B56FA2D" box="[636,857,1382,1409]" italics="true" pageId="3" pageNumber="259">Staurosira alpestris</emphasis>
|
||
(Krasske) Van de Vijver & Beyens
|
||
</taxonomicName>
|
||
in Van de Vijver et al. (2002: 114)].
|
||
<bibRefCitation id="EFAA28C5FFA0CC5B1B57FA569A1EFA09" author="Le Cohu, R." box="[351,529,1418,1445]" pageId="3" pageNumber="259" pagination="101 - 116" refId="ref7146" refString="Le Cohu, R. (1988) Fragilaria alprestris, Opephora naveana nov. sp. et le complexe Syn edra ulna (Bacillariophycees, Araphidinees): morphologie et ultrastructure. Cryptogamie, Algologie 9: 101 - 116." type="journal article" year="1988">Le Cohu (1988)</bibRefCitation>
|
||
discusses the morphology of the
|
||
<taxonomicName id="4C3B2EB7FFA0CC5B1980FA569C0CFA09" box="[904,1027,1418,1444]" class="Bacillariophyceae" family="Fragilariaceae" genus="Staurosira" higherTaxonomySource="GBIF" kingdom="Chromista" order="Fragilariales" pageId="3" pageNumber="259" phylum="Bacillariophyta" rank="species" species="alpestris">
|
||
<emphasis id="B94F8926FFA0CC5B1980FA569C0CFA09" box="[904,1027,1418,1444]" italics="true" pageId="3" pageNumber="259">F. alpestris</emphasis>
|
||
</taxonomicName>
|
||
populations in the Kerguelen Islands, one of the archipelagos in the southern Indian Ocean. The recorded populations on the other Indian Ocean islands also had always larger valve dimensions (valve length>
|
||
<quantity id="4CC3F8D1FFA0CC5B190AFA0F9B43FA40" box="[770,844,1490,1517]" metricMagnitude="-2" metricUnit="m" metricValue="2.5" pageId="3" pageNumber="259" unit="mm" value="25.0">25 µm</quantity>
|
||
and valve width>4.0 µm) giving them a more robust appearance, contrary to
|
||
<taxonomicName id="4C3B2EB7FFA0CC5B1B9FFA2A9A01F9BD" authorityName="Van de Vijver" authorityYear="2014" box="[407,526,1527,1553]" class="Bacillariophyceae" family="Fragilariaceae" genus="Staurosira" higherTaxonomySource="GBIF" kingdom="Chromista" order="Fragilariales" pageId="3" pageNumber="259" phylum="Bacillariophyta" rank="species" species="pottiezii">
|
||
<emphasis id="B94F8926FFA0CC5B1B9FFA2A9A01F9BD" box="[407,526,1527,1553]" italics="true" pageId="3" pageNumber="259">S. pottiezii</emphasis>
|
||
</taxonomicName>
|
||
, where valves never exceeded
|
||
<quantity id="4CC3F8D1FFA0CC5B1966FA2B9BB0F9BC" box="[878,959,1526,1553]" metricMagnitude="-3" metricUnit="m" metricValue="3.5" pageId="3" pageNumber="259" unit="mm" value="3.5">3.5 µm</quantity>
|
||
in breadth. Based on
|
||
<bibRefCitation id="EFAA28C5FFA0CC5B1EBEFA2A9D62F9BD" author="Le Cohu, R." box="[1206,1389,1526,1553]" pageId="3" pageNumber="259" pagination="101 - 116" refId="ref7146" refString="Le Cohu, R. (1988) Fragilaria alprestris, Opephora naveana nov. sp. et le complexe Syn edra ulna (Bacillariophycees, Araphidinees): morphologie et ultrastructure. Cryptogamie, Algologie 9: 101 - 116." type="journal article" year="1988">Le Cohu (1988)</bibRefCitation>
|
||
, only one single apical pore field is observed in
|
||
<taxonomicName id="4C3B2EB7FFA0CC5B186BF9C69AD0F999" box="[611,735,1562,1588]" class="Bacillariophyceae" family="Fragilariaceae" genus="Staurosira" higherTaxonomySource="GBIF" kingdom="Chromista" order="Fragilariales" pageId="3" pageNumber="259" phylum="Bacillariophyta" rank="species" species="alpestris">
|
||
<emphasis id="B94F8926FFA0CC5B186BF9C69AD0F999" box="[611,735,1562,1588]" italics="true" pageId="3" pageNumber="259">F. alpestris</emphasis>
|
||
</taxonomicName>
|
||
, whereas
|
||
<taxonomicName id="4C3B2EB7FFA0CC5B1959F9C69BC8F999" authorityName="Van de Vijver" authorityYear="2014" box="[849,967,1563,1589]" class="Bacillariophyceae" family="Fragilariaceae" genus="Staurosira" higherTaxonomySource="GBIF" kingdom="Chromista" order="Fragilariales" pageId="3" pageNumber="259" phylum="Bacillariophyta" rank="species" species="pottiezii">
|
||
<emphasis id="B94F8926FFA0CC5B1959F9C69BC8F999" box="[849,967,1563,1589]" italics="true" pageId="3" pageNumber="259">S. pottiezii</emphasis>
|
||
</taxonomicName>
|
||
always has two. In
|
||
<collectingCountry id="F32C15A4FFA0CC5B1EAFF9C79D43F999" box="[1191,1356,1562,1588]" name="South Georgia and the South Sandwich Islands" pageId="3" pageNumber="259">South Georgia</collectingCountry>
|
||
, another similar taxon was found, most likely erroneously identified as
|
||
<taxonomicName id="4C3B2EB7FFA0CC5B194FF9E39D53F9F5" authority="Lange-Bert. (1993: 48)" authorityName="Lange-Bert." authorityPageNumber="48" authorityYear="1993" box="[839,1372,1598,1625]" class="Bacillariophyceae" family="Fragilariaceae" genus="Fragilaria" higherTaxonomySource="GBIF" kingdom="Chromista" order="Fragilariales" pageId="3" pageNumber="259" phylum="Bacillariophyta" rank="species" species="neoproducta">
|
||
<emphasis id="B94F8926FFA0CC5B194FF9E39C5EF9F5" box="[839,1105,1598,1624]" italics="true" pageId="3" pageNumber="259">Fragilaria neoproducta</emphasis>
|
||
Lange-Bert. (1993: 48)
|
||
</taxonomicName>
|
||
in
|
||
<bibRefCitation id="EFAA28C5FFA0CC5B1F88F9E299A7F9D1" author="Van de Vijver, B. & Beyens, L." pageId="3" pageNumber="259" pagination="359 - 368" refId="ref8206" refString="Van de Vijver, B. & Beyens, L. (1996) Freshwater diatom communities of the Stromness Bay area, South Georgia. Antarctic Science 8: 359 - 368. http: // dx. doi. org / 10.1017 / s 0954102096000533" type="journal article" year="1996">Van de Vijver & Beyens 1996</bibRefCitation>
|
||
. A preliminary LM analysis (Van de Vijver, unpubl. res.) showed that the valves are always larger (width>4.0 µm) with usually less subcapitate and more subrostrate apices. Conspecificity between
|
||
<taxonomicName id="4C3B2EB7FFA0CC5B1F3CF95A9DA4F90D" authorityName="Van de Vijver" authorityYear="2014" box="[1332,1451,1671,1697]" class="Bacillariophyceae" family="Fragilariaceae" genus="Staurosira" higherTaxonomySource="GBIF" kingdom="Chromista" order="Fragilariales" pageId="3" pageNumber="259" phylum="Bacillariophyta" rank="species" species="pottiezii">
|
||
<emphasis id="B94F8926FFA0CC5B1F3CF95A9DA4F90D" box="[1332,1451,1671,1697]" italics="true" pageId="3" pageNumber="259">S. pottiezii</emphasis>
|
||
</taxonomicName>
|
||
and the populations from the Southern Indian Ocean and
|
||
<collectingCountry id="F32C15A4FFA0CC5B192CF9779BC5F969" box="[804,970,1706,1732]" name="South Georgia and the South Sandwich Islands" pageId="3" pageNumber="259">South Georgia</collectingCountry>
|
||
can most probably be excluded based on current data, but more detailed SEM analysis of the latter populations will be necessary for a final decision.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C32106BFFFA0CC5B1AB5F92F995EF781" pageId="3" pageNumber="259" type="biology_ecology">
|
||
<paragraph id="8B845534FFA0CC5B1AB5F92F995EF781" blockId="3.[136,1452,158,2092]" pageId="3" pageNumber="259">
|
||
<emphasis id="B94F8926FFA0CC5B1AB5F92F99C1F8A1" bold="true" box="[189,462,1778,1804]" pageId="3" pageNumber="259">Ecology & Distribution</emphasis>
|
||
:—
|
||
<taxonomicName id="4C3B2EB7FFA0CC5B1BFAF92E9ACAF8A1" authorityName="Van de Vijver" authorityYear="2014" box="[498,709,1779,1805]" class="Bacillariophyceae" family="Fragilariaceae" genus="Staurosira" higherTaxonomySource="GBIF" kingdom="Chromista" order="Fragilariales" pageId="3" pageNumber="259" phylum="Bacillariophyta" rank="species" species="pottiezii">
|
||
<emphasis id="B94F8926FFA0CC5B1BFAF92E9ACAF8A1" box="[498,709,1779,1805]" italics="true" pageId="3" pageNumber="259">Staurosira pottiezii</emphasis>
|
||
</taxonomicName>
|
||
was found on many islands of the South
|
||
<collectingCountry id="F32C15A4FFA0CC5B1E72F92F9D2BF8A1" box="[1146,1316,1778,1804]" name="Shetland Island" pageId="3" pageNumber="259">Shetland Island</collectingCountry>
|
||
archipelago [Livingston Island, Deception Island, Nelson Island and Dart Island (R. Zidarova, pers. com.), King George Island]. However, its exact distribution is not well known due to confusion with other cosmopolitan taxa such as
|
||
<taxonomicName id="4C3B2EB7FFA0CC5B1F3DF8E79946F8D5" authority="Krasske" authorityName="Krasske" class="Bacillariophyceae" family="Fragilariaceae" genus="Fragilaria" higherTaxonomySource="GBIF" kingdom="Chromista" order="Fragilariales" pageId="3" pageNumber="259" phylum="Bacillariophyta" rank="species" species="alpestris">
|
||
<emphasis id="B94F8926FFA0CC5B1F3DF8E798E7F8D5" italics="true" pageId="3" pageNumber="259">Fragilaria alpestris</emphasis>
|
||
Krasske
|
||
</taxonomicName>
|
||
(in
|
||
<bibRefCitation id="EFAA28C5FFA0CC5B1B7CF8839A4BF8D4" author="Hustedt, F." box="[372,580,1886,1913]" pageId="3" pageNumber="259" pagination="1 - 176" refId="ref6629" refString="Hustedt, F. (1931) Die Kieselalgen Deutschlands, Osterreichs und der Schweiz unter Berucksichtigung der ubrigen Lander Europas sowie der angrenzenden Meeresgebiete. In: (ed.) Dr. L. Rabenhorst Kryptogamen Flora von Deutschland, Osterreich und der Schweiz. (Teil 2, Lief. 1): 1 - 176, figs 543 - 682." type="journal article" year="1931">Hustedt 1931: 165</bibRefCitation>
|
||
),
|
||
<taxonomicName id="4C3B2EB7FFA0CC5B185FF8829B9AF8D4" authority="Heiberg (1863: 60)" authorityName="Heiberg" authorityPageNumber="60" authorityYear="1863" box="[599,917,1886,1913]" class="Bacillariophyceae" family="Fragilariaceae" genus="Fragilaria" higherTaxonomySource="GBIF" kingdom="Chromista" order="Fragilariales" pageId="3" pageNumber="259" phylum="Bacillariophyta" rank="species" species="bidens">
|
||
<emphasis id="B94F8926FFA0CC5B185FF8829AB4F8D5" box="[599,699,1886,1912]" italics="true" pageId="3" pageNumber="259">F. bidens</emphasis>
|
||
<bibRefCitation id="EFAA28C5FFA0CC5B18C9F8839B9AF8D4" author="Heiberg, P. A. C." box="[705,917,1886,1913]" pageId="3" pageNumber="259" refId="ref6492" refString="Heiberg, P. A. C. (1863) Conspectus criticus Diatomacearum Danicarum. Kritisk Oversigt over De Danske Diatomeer. Wilhelm Priors Forlag, Kjobenhavn. 135 pp., 6 pls. http: // dx. doi. org / 10.5962 / bhl. title. 68738" type="book" year="1863">Heiberg (1863: 60)</bibRefCitation>
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName id="4C3B2EB7FFA0CC5B19C1F8829DA7F8D5" authority="Ehrenb. (1843: 424)" authorityName="Ehrenb." authorityPageNumber="424" authorityYear="1843" box="[969,1448,1886,1913]" class="Bacillariophyceae" family="Fragilariaceae" genus="Staurosira" higherTaxonomySource="GBIF" kingdom="Chromista" order="Fragilariales" pageId="3" pageNumber="259" phylum="Bacillariophyta" rank="species" species="construens">
|
||
<emphasis id="B94F8926FFA0CC5B19C1F8829CB1F8D5" box="[969,1214,1887,1913]" italics="true" pageId="3" pageNumber="259">Staurosira construens</emphasis>
|
||
Ehrenb. (1843: 424)
|
||
</taxonomicName>
|
||
.
|
||
<taxonomicName id="4C3B2EB7FFA0CC5B1A80F85E996FF831" authorityName="Van de Vijver" authorityYear="2014" box="[136,352,1923,1949]" class="Bacillariophyceae" family="Fragilariaceae" genus="Staurosira" higherTaxonomySource="GBIF" kingdom="Chromista" order="Fragilariales" pageId="3" pageNumber="259" phylum="Bacillariophyta" rank="species" species="pottiezii">
|
||
<emphasis id="B94F8926FFA0CC5B1A80F85E996FF831" box="[136,352,1923,1949]" italics="true" pageId="3" pageNumber="259">Staurosira pottiezii</emphasis>
|
||
</taxonomicName>
|
||
seems to prefer small, shallow, usually temporary pools, most likely originating from meltwater streams or seepage areas. On average, these pools had an alkaline pH (7.5-9.0) and rather low conductivity (80–110 µS/cm). In one pool on Dart Island, a large population was found at pH 9.4 and a conductivity of 576 µS/cm (R. Zidarova, pers. com.). All major populations on Byers Peninsula were associated with large algal mats, developed in these small pools.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |