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<document id="8CB69BDA8A79045B629206682B4460F6" ID-DOI="10.11646/phytotaxa.177.4.4" ID-ISSN="1179-3163" ID-Zenodo-Dep="5144785" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1627542842662" checkinUser="felipe" docAuthor="Talgatti, Dávia, Sar, Eugenia A. &amp; Torgan, Lezilda C." docDate="2014" docId="038587F9FFB6A95D3480FD91FE01F834" docLanguage="en" docName="Phytotaxa.177.4.231-238.pdf" docOrigin="Phytotaxa 177 (4)" docSource="http://dx.doi.org/10.11646/phytotaxa.177.4.4" docStyle="DocumentStyle:96748F8F1B6C902996E134952A3A36B9.7:Phytotaxa.2014-.journal_article" docStyleId="96748F8F1B6C902996E134952A3A36B9" docStyleName="Phytotaxa.2014-.journal_article" docStyleVersion="7" docTitle="Haslea sigma Talgatti, Sar &amp; Torgan 2014, sp. nov." docType="treatment" docVersion="3" lastPageNumber="233" masterDocId="FFBCFF81FFB4A95F3408FFA5FF87FFFF" masterDocTitle="Haslea sigma (Naviculaceae, Bacillariophyta) a new sigmoid benthic species from salt marshes of Southern Brazil" masterLastPageNumber="238" masterPageNumber="231" pageNumber="233" updateTime="1699028885933" updateUser="plazi" zenodo-license-figures="UNSPECIFIED" zenodo-license-treatments="UNSPECIFIED">
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<mods:title id="CEAF8BAF64B9BCFFA007388E931294D8">Haslea sigma (Naviculaceae, Bacillariophyta) a new sigmoid benthic species from salt marshes of Southern Brazil</mods:title>
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<mods:namePart id="8497BF7DC7A1C7F2F3E5CF17C49ECCED">Talgatti, Dávia</mods:namePart>
<mods:affiliation id="7973C080E2378602E754085737C6A149">Programa de Pós-Graduação em Botânica, Universidade Federal do Rio Grande do Sul, Avenida Bento Gonçalves nº 9500, Campus do Vale, CEP 91501 - 970, Porto Alegre, RS, Brazil (Corresponding author: daviatalgatti @ gmail. com)</mods:affiliation>
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<mods:namePart id="4527CDF9F7A10AB93BF99A5563C498ED">Sar, Eugenia A.</mods:namePart>
<mods:affiliation id="E6870D605678667A1EC9DD0AE3E465BA">División Ficología “ Dr. Sebastián A. Guarrera ”, Facultad de Ciencias Naturales y Museo, Paseo del Bosque s / n, 1900, La Plata, Argentina</mods:affiliation>
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<mods:namePart id="D96E847A720C60CEC024D76D1F512F51">Torgan, Lezilda C.</mods:namePart>
<mods:affiliation id="CF08D8A4F469D1DED5C92F3E21EE00D9">Programa de Pós-Graduação em Botânica, Universidade Federal do Rio Grande do Sul, Avenida Bento Gonçalves nº 9500, Campus do Vale, CEP 91501 - 970, Porto Alegre, RS, Brazil (Corresponding author: daviatalgatti @ gmail. com) &amp; Fundação Zoobotânica do Rio Grande do Sul, Museu de Ciências Naturais, Rua Salvador França, 1427, Jardim Botânico, CEP 90690 - 000, Porto Alegre, RS, Brazil</mods:affiliation>
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<mods:title id="07D26F9515C328275FA7D0CABC3A9767">Phytotaxa</mods:title>
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<mods:date id="48A7FD92AA5C83930C0831A209D8F90A">2014</mods:date>
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<mods:number id="CA7239529BECACC0B313D963462FFF52">2014-09-03</mods:number>
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<mods:number id="5AE0B2C4B5D01F6250E9D2E90884D35F">177</mods:number>
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<treatment id="038587F9FFB6A95D3480FD91FE01F834" ID-DOI="http://doi.org/10.5281/zenodo.5151160" ID-Zenodo-Dep="5151160" LSID="urn:lsid:plazi:treatment:038587F9FFB6A95D3480FD91FE01F834" httpUri="http://treatment.plazi.org/id/038587F9FFB6A95D3480FD91FE01F834" lastPageNumber="233" pageId="2" pageNumber="233">
<subSubSection id="C3366564FFB6A95D3480FD91FC96FDB0" box="[136,785,564,591]" pageId="2" pageNumber="233" type="nomenclature">
<paragraph id="8B9336EFFFB6A95D3480FD91FC96FDB0" blockId="2.[136,785,564,591]" box="[136,785,564,591]" pageId="2" pageNumber="233">
<heading id="D0DB8183FFB6A95D3480FD91FC96FDB0" box="[136,785,564,591]" fontSize="11" level="2" pageId="2" pageNumber="233" reason="3">
<taxonomicName id="4C2C4D6CFFB6A95D3480FD91FDA2FDB0" authority="Talgatti, Sar &amp; Torgan" authorityName="Talgatti, Sar &amp; Torgan" authorityYear="2014" box="[136,549,564,591]" class="Bacillariophyceae" family="Naviculaceae" genus="Haslea" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="2" pageNumber="233" phylum="Bacillariophyta" rank="species" species="sigma" status="sp. nov.">
<emphasis id="B958EAFDFFB6A95D3480FD91FEA3FDB1" bold="true" box="[136,292,564,591]" italics="true" pageId="2" pageNumber="233">Haslea sigma</emphasis>
Talgatti, Sar &amp; Torgan
</taxonomicName>
<emphasis id="B958EAFDFFB6A95D3625FD90FD06FDB1" box="[557,641,565,590]" italics="true" pageId="2" pageNumber="233">
<taxonomicNameLabel id="A26B5786FFB6A95D3625FD90FD06FDB1" box="[557,641,565,590]" pageId="2" pageNumber="233" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
(
<figureCitation id="13172A6AFFB6A95D3698FD91FC8EFDB0" box="[656,777,564,591]" captionStart-0="FIGURES 2–23" captionStart-1="FIGURES 24–35" captionStartId-0="3.[136,243,1992,2014]" captionStartId-1="4.[136,243,1588,1610]" captionTargetBox-0="[329,1258,171,1985]" captionTargetBox-1="[189,1398,180,1560]" captionTargetId-0="figure-17@3.[329,1258,171,1985]" captionTargetId-1="figure-22@4.[189,1398,180,1560]" captionTargetPageId-0="3" captionTargetPageId-1="4" captionText-0="FIGURES 2–23. LM: Haslea sigma sp. nov.. Figs. 2–8. Live material under DIC. Cells in valve view showing two apically elongated chloroplasts (in valvar view) with pyrenoids axially located (arrow). Figs. 9–16. Acid cleaned valves in DIC. Figs. 17–23. Acid cleaned valves in brightfield. Fig. 12. Holotype. Scale bar = 10 μm." captionText-1="FIGURES 24–35. SEM: Haslea sigma sp. nov. Figs. 24, 26–28, 32, 33. External view. Fig. 24. General view showing the outline of the valve. Fig. 26. Detail of two slits forming a wedge-like structure and detail of slightly curved terminal raphe. Fig. 27. Apice of valve showing the valve surface with straight, parallel and longitudinal strips (black arrow) separated by narrow slits (white arrow). Fig. 28. Detail of open valve showing cingulum composed by valvocopula (black arrow) and one copula (white arrow). Figs. 25, 29–31, 34, 35. Internal view. Fig. 25. General view showing the outline of the valve. Fig. 29. Valve center presenting raphe ending (black arrow), and a pseudostauros formed on primary side (ps) by one thickened virga (black arrow-head) and on secondary side (ss) by two thickened virgae (white arrow-head). Fig. 30. Center of valve showing on primary side part of accessory rib (black arrow), on secondary side the short accessory rib (white arrow) and the pseudostauros (black arrow-head). Fig. 31. Center of valve with pseudostauros, note that on primary and secondary sides the pseudostauros is formed by only one thickened virga. Figs. 32, 33. Longitudinal strips and slits, and central raphe fissures drop-like, bent to primary side. Figs. 34, 35. Apices showing helictoglossa (black arrow), quadrate areolae (white arrow) and end of accessory rib (arrow-head) on the primary side. Scale bars = 10 μm (Figs. 24, 25), 5 μm (Fig. 30), 2 μm (Fig. 27), 1 μm (Figs. 28, 29, 31–34), 0.5 μm (Figs. 26, 35)." figureDoi-0="http://doi.org/10.5281/zenodo.5144789" figureDoi-1="http://doi.org/10.5281/zenodo.5144791" httpUri-0="https://zenodo.org/record/5144789/files/figure.png" httpUri-1="https://zenodo.org/record/5144791/files/figure.png" pageId="2" pageNumber="233">Figs. 2–35</figureCitation>
)
</heading>
</paragraph>
</subSubSection>
<subSubSection id="C3366564FFB6A95D3480FDD9FE40FA74" pageId="2" pageNumber="233" type="description">
<paragraph id="8B9336EFFFB6A95D3480FDD9FEF3FCD9" blockId="2.[136,1452,636,1995]" pageId="2" pageNumber="233">
<emphasis id="B958EAFDFFB6A95D3480FDD9FEF2FD69" bold="true" box="[136,373,636,662]" pageId="2" pageNumber="233">Description in LM:</emphasis>
—The cells have two apically elongated chloroplasts (in valvar view) with pyrenoids axially located (
<figureCitation id="13172A6AFFB6A95D34E0FD05FED2FD45" box="[232,341,672,698]" captionStart="FIGURES 2–23" captionStartId="3.[136,243,1992,2014]" captionTargetBox="[329,1258,171,1985]" captionTargetId="figure-17@3.[329,1258,171,1985]" captionTargetPageId="3" captionText="FIGURES 2–23. LM: Haslea sigma sp. nov.. Figs. 2–8. Live material under DIC. Cells in valve view showing two apically elongated chloroplasts (in valvar view) with pyrenoids axially located (arrow). Figs. 9–16. Acid cleaned valves in DIC. Figs. 17–23. Acid cleaned valves in brightfield. Fig. 12. Holotype. Scale bar = 10 μm." figureDoi="http://doi.org/10.5281/zenodo.5144789" httpUri="https://zenodo.org/record/5144789/files/figure.png" pageId="2" pageNumber="233">Figs. 2–8</figureCitation>
). The frustule is delicate, the striation is inconspicuous and it is possible to visualize only the raphe sternum, the pseudostauros and the valve sides (
<figureCitation id="13172A6AFFB6A95D36AFFD61FCA3FD21" box="[679,804,708,734]" captionStart="FIGURES 2–23" captionStartId="3.[136,243,1992,2014]" captionTargetBox="[329,1258,171,1985]" captionTargetId="figure-17@3.[329,1258,171,1985]" captionTargetPageId="3" captionText="FIGURES 2–23. LM: Haslea sigma sp. nov.. Figs. 2–8. Live material under DIC. Cells in valve view showing two apically elongated chloroplasts (in valvar view) with pyrenoids axially located (arrow). Figs. 9–16. Acid cleaned valves in DIC. Figs. 17–23. Acid cleaned valves in brightfield. Fig. 12. Holotype. Scale bar = 10 μm." figureDoi="http://doi.org/10.5281/zenodo.5144789" httpUri="https://zenodo.org/record/5144789/files/figure.png" pageId="2" pageNumber="233">Figs. 9–23</figureCitation>
). The valves are sigmoid, lanceolate, with almost parallel sides in the middle (
<figureCitation id="13172A6AFFB6A95D3579FD4DFE69FCFD" box="[369,494,744,770]" captionStart="FIGURES 2–23" captionStartId="3.[136,243,1992,2014]" captionTargetBox="[329,1258,171,1985]" captionTargetId="figure-17@3.[329,1258,171,1985]" captionTargetPageId="3" captionText="FIGURES 2–23. LM: Haslea sigma sp. nov.. Figs. 2–8. Live material under DIC. Cells in valve view showing two apically elongated chloroplasts (in valvar view) with pyrenoids axially located (arrow). Figs. 9–16. Acid cleaned valves in DIC. Figs. 17–23. Acid cleaned valves in brightfield. Fig. 12. Holotype. Scale bar = 10 μm." figureDoi="http://doi.org/10.5281/zenodo.5144789" httpUri="https://zenodo.org/record/5144789/files/figure.png" pageId="2" pageNumber="233">Figs. 2–23</figureCitation>
). The ends are curved towards opposite sides with cuneate apices. Raphe and raphe sternum are sigmoid.
</paragraph>
<paragraph id="8B9336EFFFB6A95D34B5FC95FBFEFC01" blockId="2.[136,1452,636,1995]" pageId="2" pageNumber="233">
<emphasis id="B958EAFDFFB6A95D34B5FC95FE3AFCB5" bold="true" box="[189,445,816,842]" pageId="2" pageNumber="233">Description in SEM:</emphasis>
—
<emphasis id="B958EAFDFFB6A95D35D2FC95FDFEFCB5" box="[474,633,816,842]" italics="true" pageId="2" pageNumber="233">External view</emphasis>
: The central raphe fissures are almost straight, slightly bent towards primary side of the valve and drop-shaped (
<figureCitation id="13172A6AFFB6A95D3670FCF1FC85FC91" box="[632,770,852,878]" captionStart="FIGURES 24–35" captionStartId="4.[136,243,1588,1610]" captionTargetBox="[189,1398,180,1560]" captionTargetId="figure-22@4.[189,1398,180,1560]" captionTargetPageId="4" captionText="FIGURES 24–35. SEM: Haslea sigma sp. nov. Figs. 24, 26–28, 32, 33. External view. Fig. 24. General view showing the outline of the valve. Fig. 26. Detail of two slits forming a wedge-like structure and detail of slightly curved terminal raphe. Fig. 27. Apice of valve showing the valve surface with straight, parallel and longitudinal strips (black arrow) separated by narrow slits (white arrow). Fig. 28. Detail of open valve showing cingulum composed by valvocopula (black arrow) and one copula (white arrow). Figs. 25, 29–31, 34, 35. Internal view. Fig. 25. General view showing the outline of the valve. Fig. 29. Valve center presenting raphe ending (black arrow), and a pseudostauros formed on primary side (ps) by one thickened virga (black arrow-head) and on secondary side (ss) by two thickened virgae (white arrow-head). Fig. 30. Center of valve showing on primary side part of accessory rib (black arrow), on secondary side the short accessory rib (white arrow) and the pseudostauros (black arrow-head). Fig. 31. Center of valve with pseudostauros, note that on primary and secondary sides the pseudostauros is formed by only one thickened virga. Figs. 32, 33. Longitudinal strips and slits, and central raphe fissures drop-like, bent to primary side. Figs. 34, 35. Apices showing helictoglossa (black arrow), quadrate areolae (white arrow) and end of accessory rib (arrow-head) on the primary side. Scale bars = 10 μm (Figs. 24, 25), 5 μm (Fig. 30), 2 μm (Fig. 27), 1 μm (Figs. 28, 29, 31–34), 0.5 μm (Figs. 26, 35)." figureDoi="http://doi.org/10.5281/zenodo.5144791" httpUri="https://zenodo.org/record/5144791/files/figure.png" pageId="2" pageNumber="233">Figs. 32, 33</figureCitation>
). The terminal raphe fissures are slightly curved to opposite sides towards the concave side of the valve and expanded slightly (
<figureCitation id="13172A6AFFB6A95D3763FCDDFC40FC6C" box="[875,967,888,915]" captionStart="FIGURES 24–35" captionStartId="4.[136,243,1588,1610]" captionTargetBox="[189,1398,180,1560]" captionTargetId="figure-22@4.[189,1398,180,1560]" captionTargetPageId="4" captionText="FIGURES 24–35. SEM: Haslea sigma sp. nov. Figs. 24, 26–28, 32, 33. External view. Fig. 24. General view showing the outline of the valve. Fig. 26. Detail of two slits forming a wedge-like structure and detail of slightly curved terminal raphe. Fig. 27. Apice of valve showing the valve surface with straight, parallel and longitudinal strips (black arrow) separated by narrow slits (white arrow). Fig. 28. Detail of open valve showing cingulum composed by valvocopula (black arrow) and one copula (white arrow). Figs. 25, 29–31, 34, 35. Internal view. Fig. 25. General view showing the outline of the valve. Fig. 29. Valve center presenting raphe ending (black arrow), and a pseudostauros formed on primary side (ps) by one thickened virga (black arrow-head) and on secondary side (ss) by two thickened virgae (white arrow-head). Fig. 30. Center of valve showing on primary side part of accessory rib (black arrow), on secondary side the short accessory rib (white arrow) and the pseudostauros (black arrow-head). Fig. 31. Center of valve with pseudostauros, note that on primary and secondary sides the pseudostauros is formed by only one thickened virga. Figs. 32, 33. Longitudinal strips and slits, and central raphe fissures drop-like, bent to primary side. Figs. 34, 35. Apices showing helictoglossa (black arrow), quadrate areolae (white arrow) and end of accessory rib (arrow-head) on the primary side. Scale bars = 10 μm (Figs. 24, 25), 5 μm (Fig. 30), 2 μm (Fig. 27), 1 μm (Figs. 28, 29, 31–34), 0.5 μm (Figs. 26, 35)." figureDoi="http://doi.org/10.5281/zenodo.5144791" httpUri="https://zenodo.org/record/5144791/files/figure.png" pageId="2" pageNumber="233">Figs. 26</figureCitation>
˗28). Valve surface has straight, parallel and longitudinal strips of silica (
<figureCitation id="13172A6AFFB6A95D35CEFC39FD21FC49" box="[454,678,924,950]" captionStart="FIGURES 24–35" captionStartId="4.[136,243,1588,1610]" captionTargetBox="[189,1398,180,1560]" captionTargetId="figure-22@4.[189,1398,180,1560]" captionTargetPageId="4" captionText="FIGURES 24–35. SEM: Haslea sigma sp. nov. Figs. 24, 26–28, 32, 33. External view. Fig. 24. General view showing the outline of the valve. Fig. 26. Detail of two slits forming a wedge-like structure and detail of slightly curved terminal raphe. Fig. 27. Apice of valve showing the valve surface with straight, parallel and longitudinal strips (black arrow) separated by narrow slits (white arrow). Fig. 28. Detail of open valve showing cingulum composed by valvocopula (black arrow) and one copula (white arrow). Figs. 25, 29–31, 34, 35. Internal view. Fig. 25. General view showing the outline of the valve. Fig. 29. Valve center presenting raphe ending (black arrow), and a pseudostauros formed on primary side (ps) by one thickened virga (black arrow-head) and on secondary side (ss) by two thickened virgae (white arrow-head). Fig. 30. Center of valve showing on primary side part of accessory rib (black arrow), on secondary side the short accessory rib (white arrow) and the pseudostauros (black arrow-head). Fig. 31. Center of valve with pseudostauros, note that on primary and secondary sides the pseudostauros is formed by only one thickened virga. Figs. 32, 33. Longitudinal strips and slits, and central raphe fissures drop-like, bent to primary side. Figs. 34, 35. Apices showing helictoglossa (black arrow), quadrate areolae (white arrow) and end of accessory rib (arrow-head) on the primary side. Scale bars = 10 μm (Figs. 24, 25), 5 μm (Fig. 30), 2 μm (Fig. 27), 1 μm (Figs. 28, 29, 31–34), 0.5 μm (Figs. 26, 35)." figureDoi="http://doi.org/10.5281/zenodo.5144791" httpUri="https://zenodo.org/record/5144791/files/figure.png" pageId="2" pageNumber="233">Figs. 24, 27, 32, 33</figureCitation>
), which cover the striae and are separated by narrow slits (arrows in
<figureCitation id="13172A6AFFB6A95D3480FC65FF5BFC25" box="[136,220,960,986]" captionStart="FIGURES 24–35" captionStartId="4.[136,243,1588,1610]" captionTargetBox="[189,1398,180,1560]" captionTargetId="figure-22@4.[189,1398,180,1560]" captionTargetPageId="4" captionText="FIGURES 24–35. SEM: Haslea sigma sp. nov. Figs. 24, 26–28, 32, 33. External view. Fig. 24. General view showing the outline of the valve. Fig. 26. Detail of two slits forming a wedge-like structure and detail of slightly curved terminal raphe. Fig. 27. Apice of valve showing the valve surface with straight, parallel and longitudinal strips (black arrow) separated by narrow slits (white arrow). Fig. 28. Detail of open valve showing cingulum composed by valvocopula (black arrow) and one copula (white arrow). Figs. 25, 29–31, 34, 35. Internal view. Fig. 25. General view showing the outline of the valve. Fig. 29. Valve center presenting raphe ending (black arrow), and a pseudostauros formed on primary side (ps) by one thickened virga (black arrow-head) and on secondary side (ss) by two thickened virgae (white arrow-head). Fig. 30. Center of valve showing on primary side part of accessory rib (black arrow), on secondary side the short accessory rib (white arrow) and the pseudostauros (black arrow-head). Fig. 31. Center of valve with pseudostauros, note that on primary and secondary sides the pseudostauros is formed by only one thickened virga. Figs. 32, 33. Longitudinal strips and slits, and central raphe fissures drop-like, bent to primary side. Figs. 34, 35. Apices showing helictoglossa (black arrow), quadrate areolae (white arrow) and end of accessory rib (arrow-head) on the primary side. Scale bars = 10 μm (Figs. 24, 25), 5 μm (Fig. 30), 2 μm (Fig. 27), 1 μm (Figs. 28, 29, 31–34), 0.5 μm (Figs. 26, 35)." figureDoi="http://doi.org/10.5281/zenodo.5144791" httpUri="https://zenodo.org/record/5144791/files/figure.png" pageId="2" pageNumber="233">Fig. 27</figureCitation>
). Two of these slits go to the end of valve and come together at the far tip of the pole (
<figureCitation id="13172A6AFFB6A95D30AFFC65FB7CFC24" box="[1191,1275,960,987]" captionStart="FIGURES 24–35" captionStartId="4.[136,243,1588,1610]" captionTargetBox="[189,1398,180,1560]" captionTargetId="figure-22@4.[189,1398,180,1560]" captionTargetPageId="4" captionText="FIGURES 24–35. SEM: Haslea sigma sp. nov. Figs. 24, 26–28, 32, 33. External view. Fig. 24. General view showing the outline of the valve. Fig. 26. Detail of two slits forming a wedge-like structure and detail of slightly curved terminal raphe. Fig. 27. Apice of valve showing the valve surface with straight, parallel and longitudinal strips (black arrow) separated by narrow slits (white arrow). Fig. 28. Detail of open valve showing cingulum composed by valvocopula (black arrow) and one copula (white arrow). Figs. 25, 29–31, 34, 35. Internal view. Fig. 25. General view showing the outline of the valve. Fig. 29. Valve center presenting raphe ending (black arrow), and a pseudostauros formed on primary side (ps) by one thickened virga (black arrow-head) and on secondary side (ss) by two thickened virgae (white arrow-head). Fig. 30. Center of valve showing on primary side part of accessory rib (black arrow), on secondary side the short accessory rib (white arrow) and the pseudostauros (black arrow-head). Fig. 31. Center of valve with pseudostauros, note that on primary and secondary sides the pseudostauros is formed by only one thickened virga. Figs. 32, 33. Longitudinal strips and slits, and central raphe fissures drop-like, bent to primary side. Figs. 34, 35. Apices showing helictoglossa (black arrow), quadrate areolae (white arrow) and end of accessory rib (arrow-head) on the primary side. Scale bars = 10 μm (Figs. 24, 25), 5 μm (Fig. 30), 2 μm (Fig. 27), 1 μm (Figs. 28, 29, 31–34), 0.5 μm (Figs. 26, 35)." figureDoi="http://doi.org/10.5281/zenodo.5144791" httpUri="https://zenodo.org/record/5144791/files/figure.png" pageId="2" pageNumber="233">Fig. 26</figureCitation>
). The cingulum appears to be composed by two open, plain bands: valvocopula and copula (
<figureCitation id="13172A6AFFB6A95D37EBFC41FBEBFC01" box="[995,1132,996,1023]" captionStart="FIGURES 24–35" captionStartId="4.[136,243,1588,1610]" captionTargetBox="[189,1398,180,1560]" captionTargetId="figure-22@4.[189,1398,180,1560]" captionTargetPageId="4" captionText="FIGURES 24–35. SEM: Haslea sigma sp. nov. Figs. 24, 26–28, 32, 33. External view. Fig. 24. General view showing the outline of the valve. Fig. 26. Detail of two slits forming a wedge-like structure and detail of slightly curved terminal raphe. Fig. 27. Apice of valve showing the valve surface with straight, parallel and longitudinal strips (black arrow) separated by narrow slits (white arrow). Fig. 28. Detail of open valve showing cingulum composed by valvocopula (black arrow) and one copula (white arrow). Figs. 25, 29–31, 34, 35. Internal view. Fig. 25. General view showing the outline of the valve. Fig. 29. Valve center presenting raphe ending (black arrow), and a pseudostauros formed on primary side (ps) by one thickened virga (black arrow-head) and on secondary side (ss) by two thickened virgae (white arrow-head). Fig. 30. Center of valve showing on primary side part of accessory rib (black arrow), on secondary side the short accessory rib (white arrow) and the pseudostauros (black arrow-head). Fig. 31. Center of valve with pseudostauros, note that on primary and secondary sides the pseudostauros is formed by only one thickened virga. Figs. 32, 33. Longitudinal strips and slits, and central raphe fissures drop-like, bent to primary side. Figs. 34, 35. Apices showing helictoglossa (black arrow), quadrate areolae (white arrow) and end of accessory rib (arrow-head) on the primary side. Scale bars = 10 μm (Figs. 24, 25), 5 μm (Fig. 30), 2 μm (Fig. 27), 1 μm (Figs. 28, 29, 31–34), 0.5 μm (Figs. 26, 35)." figureDoi="http://doi.org/10.5281/zenodo.5144791" httpUri="https://zenodo.org/record/5144791/files/figure.png" pageId="2" pageNumber="233">Figs. 25, 28</figureCitation>
).
</paragraph>
<paragraph id="8B9336EFFFB6A95D34B5FBADFC35FABC" blockId="2.[136,1452,636,1995]" pageId="2" pageNumber="233">
<emphasis id="B958EAFDFFB6A95D34B5FBADFEDBFBDD" box="[189,348,1032,1058]" italics="true" pageId="2" pageNumber="233">Internal view:</emphasis>
The central raphe endings are coaxial, simple, straight and not expanded (
<figureCitation id="13172A6AFFB6A95D30A7FBADFABEFBDD" box="[1199,1337,1032,1058]" captionStart="FIGURES 24–35" captionStartId="4.[136,243,1588,1610]" captionTargetBox="[189,1398,180,1560]" captionTargetId="figure-22@4.[189,1398,180,1560]" captionTargetPageId="4" captionText="FIGURES 24–35. SEM: Haslea sigma sp. nov. Figs. 24, 26–28, 32, 33. External view. Fig. 24. General view showing the outline of the valve. Fig. 26. Detail of two slits forming a wedge-like structure and detail of slightly curved terminal raphe. Fig. 27. Apice of valve showing the valve surface with straight, parallel and longitudinal strips (black arrow) separated by narrow slits (white arrow). Fig. 28. Detail of open valve showing cingulum composed by valvocopula (black arrow) and one copula (white arrow). Figs. 25, 29–31, 34, 35. Internal view. Fig. 25. General view showing the outline of the valve. Fig. 29. Valve center presenting raphe ending (black arrow), and a pseudostauros formed on primary side (ps) by one thickened virga (black arrow-head) and on secondary side (ss) by two thickened virgae (white arrow-head). Fig. 30. Center of valve showing on primary side part of accessory rib (black arrow), on secondary side the short accessory rib (white arrow) and the pseudostauros (black arrow-head). Fig. 31. Center of valve with pseudostauros, note that on primary and secondary sides the pseudostauros is formed by only one thickened virga. Figs. 32, 33. Longitudinal strips and slits, and central raphe fissures drop-like, bent to primary side. Figs. 34, 35. Apices showing helictoglossa (black arrow), quadrate areolae (white arrow) and end of accessory rib (arrow-head) on the primary side. Scale bars = 10 μm (Figs. 24, 25), 5 μm (Fig. 30), 2 μm (Fig. 27), 1 μm (Figs. 28, 29, 31–34), 0.5 μm (Figs. 26, 35)." figureDoi="http://doi.org/10.5281/zenodo.5144791" httpUri="https://zenodo.org/record/5144791/files/figure.png" pageId="2" pageNumber="233">Figs. 29, 31</figureCitation>
), whereas each polar raphe ending is expanded and terminates in a raised and straight helictoglossa (
<figureCitation id="13172A6AFFB6A95D3061FB89FB68FBB8" box="[1129,1263,1068,1095]" captionStart="FIGURES 24–35" captionStartId="4.[136,243,1588,1610]" captionTargetBox="[189,1398,180,1560]" captionTargetId="figure-22@4.[189,1398,180,1560]" captionTargetPageId="4" captionText="FIGURES 24–35. SEM: Haslea sigma sp. nov. Figs. 24, 26–28, 32, 33. External view. Fig. 24. General view showing the outline of the valve. Fig. 26. Detail of two slits forming a wedge-like structure and detail of slightly curved terminal raphe. Fig. 27. Apice of valve showing the valve surface with straight, parallel and longitudinal strips (black arrow) separated by narrow slits (white arrow). Fig. 28. Detail of open valve showing cingulum composed by valvocopula (black arrow) and one copula (white arrow). Figs. 25, 29–31, 34, 35. Internal view. Fig. 25. General view showing the outline of the valve. Fig. 29. Valve center presenting raphe ending (black arrow), and a pseudostauros formed on primary side (ps) by one thickened virga (black arrow-head) and on secondary side (ss) by two thickened virgae (white arrow-head). Fig. 30. Center of valve showing on primary side part of accessory rib (black arrow), on secondary side the short accessory rib (white arrow) and the pseudostauros (black arrow-head). Fig. 31. Center of valve with pseudostauros, note that on primary and secondary sides the pseudostauros is formed by only one thickened virga. Figs. 32, 33. Longitudinal strips and slits, and central raphe fissures drop-like, bent to primary side. Figs. 34, 35. Apices showing helictoglossa (black arrow), quadrate areolae (white arrow) and end of accessory rib (arrow-head) on the primary side. Scale bars = 10 μm (Figs. 24, 25), 5 μm (Fig. 30), 2 μm (Fig. 27), 1 μm (Figs. 28, 29, 31–34), 0.5 μm (Figs. 26, 35)." figureDoi="http://doi.org/10.5281/zenodo.5144791" httpUri="https://zenodo.org/record/5144791/files/figure.png" pageId="2" pageNumber="233">Figs. 34, 35</figureCitation>
). On the primary side there is an accessory rib that accompanies the raphe close to the helictoglossa, which is raised and overlaps the raphe sternum (black arrow in
<figureCitation id="13172A6AFFB6A95D35EAFBD1FDB4FB71" box="[482,563,1140,1166]" captionStart="FIGURES 24–35" captionStartId="4.[136,243,1588,1610]" captionTargetBox="[189,1398,180,1560]" captionTargetId="figure-22@4.[189,1398,180,1560]" captionTargetPageId="4" captionText="FIGURES 24–35. SEM: Haslea sigma sp. nov. Figs. 24, 26–28, 32, 33. External view. Fig. 24. General view showing the outline of the valve. Fig. 26. Detail of two slits forming a wedge-like structure and detail of slightly curved terminal raphe. Fig. 27. Apice of valve showing the valve surface with straight, parallel and longitudinal strips (black arrow) separated by narrow slits (white arrow). Fig. 28. Detail of open valve showing cingulum composed by valvocopula (black arrow) and one copula (white arrow). Figs. 25, 29–31, 34, 35. Internal view. Fig. 25. General view showing the outline of the valve. Fig. 29. Valve center presenting raphe ending (black arrow), and a pseudostauros formed on primary side (ps) by one thickened virga (black arrow-head) and on secondary side (ss) by two thickened virgae (white arrow-head). Fig. 30. Center of valve showing on primary side part of accessory rib (black arrow), on secondary side the short accessory rib (white arrow) and the pseudostauros (black arrow-head). Fig. 31. Center of valve with pseudostauros, note that on primary and secondary sides the pseudostauros is formed by only one thickened virga. Figs. 32, 33. Longitudinal strips and slits, and central raphe fissures drop-like, bent to primary side. Figs. 34, 35. Apices showing helictoglossa (black arrow), quadrate areolae (white arrow) and end of accessory rib (arrow-head) on the primary side. Scale bars = 10 μm (Figs. 24, 25), 5 μm (Fig. 30), 2 μm (Fig. 27), 1 μm (Figs. 28, 29, 31–34), 0.5 μm (Figs. 26, 35)." figureDoi="http://doi.org/10.5281/zenodo.5144791" httpUri="https://zenodo.org/record/5144791/files/figure.png" pageId="2" pageNumber="233">Fig. 30</figureCitation>
, black arrow-head in
<figureCitation id="13172A6AFFB6A95D372FFBD1FCFCFB71" box="[807,891,1140,1166]" captionStart="FIGURES 24–35" captionStartId="4.[136,243,1588,1610]" captionTargetBox="[189,1398,180,1560]" captionTargetId="figure-22@4.[189,1398,180,1560]" captionTargetPageId="4" captionText="FIGURES 24–35. SEM: Haslea sigma sp. nov. Figs. 24, 26–28, 32, 33. External view. Fig. 24. General view showing the outline of the valve. Fig. 26. Detail of two slits forming a wedge-like structure and detail of slightly curved terminal raphe. Fig. 27. Apice of valve showing the valve surface with straight, parallel and longitudinal strips (black arrow) separated by narrow slits (white arrow). Fig. 28. Detail of open valve showing cingulum composed by valvocopula (black arrow) and one copula (white arrow). Figs. 25, 29–31, 34, 35. Internal view. Fig. 25. General view showing the outline of the valve. Fig. 29. Valve center presenting raphe ending (black arrow), and a pseudostauros formed on primary side (ps) by one thickened virga (black arrow-head) and on secondary side (ss) by two thickened virgae (white arrow-head). Fig. 30. Center of valve showing on primary side part of accessory rib (black arrow), on secondary side the short accessory rib (white arrow) and the pseudostauros (black arrow-head). Fig. 31. Center of valve with pseudostauros, note that on primary and secondary sides the pseudostauros is formed by only one thickened virga. Figs. 32, 33. Longitudinal strips and slits, and central raphe fissures drop-like, bent to primary side. Figs. 34, 35. Apices showing helictoglossa (black arrow), quadrate areolae (white arrow) and end of accessory rib (arrow-head) on the primary side. Scale bars = 10 μm (Figs. 24, 25), 5 μm (Fig. 30), 2 μm (Fig. 27), 1 μm (Figs. 28, 29, 31–34), 0.5 μm (Figs. 26, 35)." figureDoi="http://doi.org/10.5281/zenodo.5144791" httpUri="https://zenodo.org/record/5144791/files/figure.png" pageId="2" pageNumber="233">Fig. 34</figureCitation>
). In the center, this rib merges with one thickened virga that almost reaches to the valve margin (
<figureCitation id="13172A6AFFB6A95D369CFB3DFCCEFB4D" box="[660,841,1176,1203]" captionStart="FIGURES 24–35" captionStartId="4.[136,243,1588,1610]" captionTargetBox="[189,1398,180,1560]" captionTargetId="figure-22@4.[189,1398,180,1560]" captionTargetPageId="4" captionText="FIGURES 24–35. SEM: Haslea sigma sp. nov. Figs. 24, 26–28, 32, 33. External view. Fig. 24. General view showing the outline of the valve. Fig. 26. Detail of two slits forming a wedge-like structure and detail of slightly curved terminal raphe. Fig. 27. Apice of valve showing the valve surface with straight, parallel and longitudinal strips (black arrow) separated by narrow slits (white arrow). Fig. 28. Detail of open valve showing cingulum composed by valvocopula (black arrow) and one copula (white arrow). Figs. 25, 29–31, 34, 35. Internal view. Fig. 25. General view showing the outline of the valve. Fig. 29. Valve center presenting raphe ending (black arrow), and a pseudostauros formed on primary side (ps) by one thickened virga (black arrow-head) and on secondary side (ss) by two thickened virgae (white arrow-head). Fig. 30. Center of valve showing on primary side part of accessory rib (black arrow), on secondary side the short accessory rib (white arrow) and the pseudostauros (black arrow-head). Fig. 31. Center of valve with pseudostauros, note that on primary and secondary sides the pseudostauros is formed by only one thickened virga. Figs. 32, 33. Longitudinal strips and slits, and central raphe fissures drop-like, bent to primary side. Figs. 34, 35. Apices showing helictoglossa (black arrow), quadrate areolae (white arrow) and end of accessory rib (arrow-head) on the primary side. Scale bars = 10 μm (Figs. 24, 25), 5 μm (Fig. 30), 2 μm (Fig. 27), 1 μm (Figs. 28, 29, 31–34), 0.5 μm (Figs. 26, 35)." figureDoi="http://doi.org/10.5281/zenodo.5144791" httpUri="https://zenodo.org/record/5144791/files/figure.png" pageId="2" pageNumber="233">Figs. 25, 29–31</figureCitation>
). On the secondary side there is also an accessory rib, however it is shorter than that of the primary side, it is raised, but does not overlap the raphe sternum, and in the center this rib merges with one or two thickened virgae (
<figureCitation id="13172A6AFFB6A95D36C8FB45FCCCFB05" box="[704,843,1248,1274]" captionStart="FIGURES 24–35" captionStartId="4.[136,243,1588,1610]" captionTargetBox="[189,1398,180,1560]" captionTargetId="figure-22@4.[189,1398,180,1560]" captionTargetPageId="4" captionText="FIGURES 24–35. SEM: Haslea sigma sp. nov. Figs. 24, 26–28, 32, 33. External view. Fig. 24. General view showing the outline of the valve. Fig. 26. Detail of two slits forming a wedge-like structure and detail of slightly curved terminal raphe. Fig. 27. Apice of valve showing the valve surface with straight, parallel and longitudinal strips (black arrow) separated by narrow slits (white arrow). Fig. 28. Detail of open valve showing cingulum composed by valvocopula (black arrow) and one copula (white arrow). Figs. 25, 29–31, 34, 35. Internal view. Fig. 25. General view showing the outline of the valve. Fig. 29. Valve center presenting raphe ending (black arrow), and a pseudostauros formed on primary side (ps) by one thickened virga (black arrow-head) and on secondary side (ss) by two thickened virgae (white arrow-head). Fig. 30. Center of valve showing on primary side part of accessory rib (black arrow), on secondary side the short accessory rib (white arrow) and the pseudostauros (black arrow-head). Fig. 31. Center of valve with pseudostauros, note that on primary and secondary sides the pseudostauros is formed by only one thickened virga. Figs. 32, 33. Longitudinal strips and slits, and central raphe fissures drop-like, bent to primary side. Figs. 34, 35. Apices showing helictoglossa (black arrow), quadrate areolae (white arrow) and end of accessory rib (arrow-head) on the primary side. Scale bars = 10 μm (Figs. 24, 25), 5 μm (Fig. 30), 2 μm (Fig. 27), 1 μm (Figs. 28, 29, 31–34), 0.5 μm (Figs. 26, 35)." figureDoi="http://doi.org/10.5281/zenodo.5144791" httpUri="https://zenodo.org/record/5144791/files/figure.png" pageId="2" pageNumber="233">Figs. 29–31</figureCitation>
). These thickened virgae form a pseudostauros that is visible in LM (
<figureCitation id="13172A6AFFB6A95D353EFAA1FE33FAE1" box="[310,436,1284,1310]" captionStart="FIGURES 2–23" captionStartId="3.[136,243,1992,2014]" captionTargetBox="[329,1258,171,1985]" captionTargetId="figure-17@3.[329,1258,171,1985]" captionTargetPageId="3" captionText="FIGURES 2–23. LM: Haslea sigma sp. nov.. Figs. 2–8. Live material under DIC. Cells in valve view showing two apically elongated chloroplasts (in valvar view) with pyrenoids axially located (arrow). Figs. 9–16. Acid cleaned valves in DIC. Figs. 17–23. Acid cleaned valves in brightfield. Fig. 12. Holotype. Scale bar = 10 μm." figureDoi="http://doi.org/10.5281/zenodo.5144789" httpUri="https://zenodo.org/record/5144789/files/figure.png" pageId="2" pageNumber="233">Figs. 9–23</figureCitation>
). Striae uniseriate, parallel, formed by quadrate areolae occluded by hymenes (
<figureCitation id="13172A6AFFB6A95D314FFAA1FA21FAE1" box="[1351,1446,1284,1310]" captionStart="FIGURES 24–35" captionStartId="4.[136,243,1588,1610]" captionTargetBox="[189,1398,180,1560]" captionTargetId="figure-22@4.[189,1398,180,1560]" captionTargetPageId="4" captionText="FIGURES 24–35. SEM: Haslea sigma sp. nov. Figs. 24, 26–28, 32, 33. External view. Fig. 24. General view showing the outline of the valve. Fig. 26. Detail of two slits forming a wedge-like structure and detail of slightly curved terminal raphe. Fig. 27. Apice of valve showing the valve surface with straight, parallel and longitudinal strips (black arrow) separated by narrow slits (white arrow). Fig. 28. Detail of open valve showing cingulum composed by valvocopula (black arrow) and one copula (white arrow). Figs. 25, 29–31, 34, 35. Internal view. Fig. 25. General view showing the outline of the valve. Fig. 29. Valve center presenting raphe ending (black arrow), and a pseudostauros formed on primary side (ps) by one thickened virga (black arrow-head) and on secondary side (ss) by two thickened virgae (white arrow-head). Fig. 30. Center of valve showing on primary side part of accessory rib (black arrow), on secondary side the short accessory rib (white arrow) and the pseudostauros (black arrow-head). Fig. 31. Center of valve with pseudostauros, note that on primary and secondary sides the pseudostauros is formed by only one thickened virga. Figs. 32, 33. Longitudinal strips and slits, and central raphe fissures drop-like, bent to primary side. Figs. 34, 35. Apices showing helictoglossa (black arrow), quadrate areolae (white arrow) and end of accessory rib (arrow-head) on the primary side. Scale bars = 10 μm (Figs. 24, 25), 5 μm (Fig. 30), 2 μm (Fig. 27), 1 μm (Figs. 28, 29, 31–34), 0.5 μm (Figs. 26, 35)." figureDoi="http://doi.org/10.5281/zenodo.5144791" httpUri="https://zenodo.org/record/5144791/files/figure.png" pageId="2" pageNumber="233">Figs. 31</figureCitation>
, white arrow in 34) and crossed at a right angle by a longitudinal pattern.
</paragraph>
<paragraph id="8B9336EFFFB6A95D34B5FAE9FE40FA74" blockId="2.[136,1452,636,1995]" pageId="2" pageNumber="233">Valve dimensions (n = 26): 55.8–70 µm long, 5.8–7.2 µm wide, 30–40 transapical striae in 10 µm, and 35–40 longitudinal striae in 10 µm.</paragraph>
</subSubSection>
<subSubSection id="C3366564FFB6A95D34B5FA31FE8FF955" pageId="2" pageNumber="233" type="materials_examined">
<paragraph id="8B9336EFFFB6A95D34B5FA31FCB7F9E5" blockId="2.[136,1452,636,1995]" pageId="2" pageNumber="233">
<materialsCitation id="3B443CB2FFB6A95D34B5FA31FCB7F9E5" collectingDate="2013-05-17" collectionCode="HAS" collectorName="D. Talgatti &amp; L. Bertolli &amp; Circled" country="Brazil" county="Rio Grande" latitude="-32.02067" location="Museu de Ciencias Naturais-Fundacao Zoobotanica" longLatPrecision="1" longitude="-52.099747" municipality="Polvora Island" pageId="2" pageNumber="233" specimenCode="HAS 6699" specimenCount="2" stateProvince="Rio Grande do Sul" typeStatus="holotype">
<emphasis id="B958EAFDFFB6A95D34B5FA31FEB3FA51" bold="true" box="[189,308,1428,1454]" pageId="2" pageNumber="233">
<typeStatus id="5497884DFFB6A95D34B5FA31FEA9FA51" box="[189,302,1428,1454]" pageId="2" pageNumber="233" type="holotype">Holotype</typeStatus>
:
</emphasis>
—
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.
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,
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city,
<collectingMunicipality id="6BF7AC95FFB6A95D3001FA31FB30FA51" box="[1033,1207,1428,1454]" pageId="2" pageNumber="233">Pólvora Island</collectingMunicipality>
(
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–
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), benthic sample, collected by
<collectorName id="26D95339FFB6A95D36A2FA1CFCA6FA2D" box="[682,801,1464,1491]" pageId="2" pageNumber="233">D. Talgatti</collectorName>
and
<collectorName id="26D95339FFB6A95D3750FA1CFC57FA2D" box="[856,976,1464,1491]" pageId="2" pageNumber="233">L. Bertolli</collectorName>
,
<date id="FF92102FFFB6A95D37D4FA1CFBFAFA2D" box="[988,1149,1464,1491]" pageId="2" pageNumber="233" value="2013-05-17">
<collectingDate id="EFD6E9C7FFB6A95D37D4FA1CFBFAFA2D" box="[988,1149,1464,1491]" pageId="2" pageNumber="233" value="2013-05-17">May 17, 2013</collectingDate>
</date>
.
<collectorName id="26D95339FFB6A95D3080FA1DFB5DFA2D" box="[1160,1242,1464,1490]" pageId="2" pageNumber="233">Circled</collectorName>
specimen on slide
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<specimenCode id="DB8A9E94FFB6A95D3480FA79FF7AFA09" box="[136,253,1500,1526]" collectionCode="HAS" country="Brazil" httpUri="http://biocol.org/urn:lsid:biocol.org:col:13038" lsid="urn:lsid:biocol.org:col:13038" name="Fundação Zoobotânica do Rio Grande do Sul" pageId="2" pageNumber="233" type="Herbarium">HAS 6699</specimenCode>
(
<location id="8EF36034FFB6A95D3506FA79FCE2FA09" LSID="urn:lsid:plazi:treatment:038587F9FFB6A95D3480FD91FE01F834:8EF36034FFB6A95D3506FA79FCE2FA09" box="[270,869,1500,1526]" country="Brazil" county="Rio Grande" latitude="-32.02067" longLatPrecision="1" longitude="-52.099747" municipality="Polvora Island" name="Museu de Ciencias Naturais-Fundacao Zoobotanica" pageId="2" pageNumber="233" stateProvince="Rio Grande do Sul">Museu de Ciências Naturais-Fundação Zoobotânica</location>
do
<collectingRegion id="49E8F80DFFB6A95D379BFA78FBEAFA09" box="[915,1133,1500,1526]" country="Brazil" name="Rio Grande do Sul" pageId="2" pageNumber="233">Rio Grande do Sul</collectingRegion>
, Porto Alegre, Brazil)
</emphasis>
, here designated.
<figureCitation id="13172A6AFFB6A95D3506F9A5FEFDF9E5" box="[270,378,1536,1562]" captionStart="FIGURES 2–23" captionStartId="3.[136,243,1992,2014]" captionTargetBox="[329,1258,171,1985]" captionTargetId="figure-17@3.[329,1258,171,1985]" captionTargetPageId="3" captionText="FIGURES 2–23. LM: Haslea sigma sp. nov.. Figs. 2–8. Live material under DIC. Cells in valve view showing two apically elongated chloroplasts (in valvar view) with pyrenoids axially located (arrow). Figs. 9–16. Acid cleaned valves in DIC. Figs. 17–23. Acid cleaned valves in brightfield. Fig. 12. Holotype. Scale bar = 10 μm." figureDoi="http://doi.org/10.5281/zenodo.5144789" httpUri="https://zenodo.org/record/5144789/files/figure.png" pageId="2" pageNumber="233">Figure 12</figureCitation>
corresponds to the
<typeStatus id="5497884DFFB6A95D365DF9A5FD30F9E5" box="[597,695,1536,1562]" pageId="2" pageNumber="233" type="holotype">holotype</typeStatus>
specimen.
</materialsCitation>
</paragraph>
<paragraph id="8B9336EFFFB6A95D34B5F981FE8FF955" blockId="2.[136,1452,636,1995]" pageId="2" pageNumber="233">
<emphasis id="B958EAFDFFB6A95D34B5F981FE99F9C1" bold="true" box="[189,286,1572,1598]" pageId="2" pageNumber="233">Isotype:</emphasis>
—
<materialsCitation id="3B443CB2FFB6A95D3533F981FE84F955" accessionNumber="LPC 13001" collectingDate="2013-05-17" collectionCode="LPC" collectorName="D. Talgatti &amp; L. Bertolli &amp; Circled &amp; Herbarium &amp; Division Ficologia &amp; Dr. Sebastian A. Guarrera &amp; Museo &amp; Argentina" country="Brazil" county="Rio Grande" latitude="-32.02067" location="Faculdad de Ciencias Naturales" longLatPrecision="1" longitude="-52.099747" municipality="Polvora Island" pageId="2" pageNumber="233" specimenCount="1" stateProvince="Rio Grande do Sul">
<collectingCountry id="F33B767FFFB6A95D3533F981FE24F9C1" box="[315,419,1572,1598]" name="Brazil" pageId="2" pageNumber="233">BRAZIL</collectingCountry>
.
<collectingRegion id="49E8F80DFFB6A95D35A1F981FD2BF9C1" box="[425,684,1572,1598]" country="Brazil" name="Rio Grande do Sul" pageId="2" pageNumber="233">Rio Grande do Sul State</collectingRegion>
,
<collectingCounty id="62F24E63FFB6A95D36BBF981FCB7F9C1" box="[691,816,1572,1598]" pageId="2" pageNumber="233">Rio Grande</collectingCounty>
city,
<collectingMunicipality id="6BF7AC95FFB6A95D376EF981FB83F9C1" box="[870,1028,1572,1598]" pageId="2" pageNumber="233">Pólvora Island</collectingMunicipality>
(
<geoCoordinate id="EE185028FFB6A95D301BF981FB40F9C0" box="[1043,1223,1572,1599]" degrees="32" direction="south" minutes="01" orientation="latitude" pageId="2" pageNumber="233" precision="1" seconds="14.424" value="-32.02067">32º01’14.424’’S</geoCoordinate>
–
<geoCoordinate id="EE185028FFB6A95D30DFF981FA18F9C0" box="[1239,1439,1572,1599]" degrees="52" direction="west" minutes="05" orientation="longitude" pageId="2" pageNumber="233" precision="1" seconds="59.095" value="-52.099747">52º05’59.095’’W</geoCoordinate>
), benthic sample, collected by
<collectorName id="26D95339FFB6A95D35CBF9ECFDB1F99D" box="[451,566,1608,1635]" pageId="2" pageNumber="233">D.Talgatti</collectorName>
and
<collectorName id="26D95339FFB6A95D366FF9ECFD5BF99D" box="[615,732,1608,1635]" pageId="2" pageNumber="233">L. Bertolli</collectorName>
,
<date id="FF92102FFFB6A95D36ECF9ECFCF8F99D" box="[740,895,1608,1635]" pageId="2" pageNumber="233" value="2013-05-17">
<collectingDate id="EFD6E9C7FFB6A95D36ECF9ECFCF8F99D" box="[740,895,1608,1635]" pageId="2" pageNumber="233" value="2013-05-17">May 17, 2013</collectingDate>
</date>
.
<collectorName id="26D95339FFB6A95D378EF9EDFC5FF99D" box="[902,984,1608,1634]" pageId="2" pageNumber="233">Circled</collectorName>
specimen on slide
<emphasis id="B958EAFDFFB6A95D30ACF9EDFAECF979" italics="true" pageId="2" pageNumber="233">
<collectionCode id="ED3DAE2AFFB6A95D30ACF9EDFB50F99D" box="[1188,1239,1608,1634]" country="Argentina" httpUri="http://grbio.org/cool/xhyz-bg6f" name="Museo de La Plata" pageId="2" pageNumber="233" type="Herbarium">LPC</collectionCode>
13001 (
<collectorName id="26D95339FFB6A95D3126F9EDFA2BF99D" box="[1326,1452,1608,1634]" pageId="2" pageNumber="233">Herbarium</collectorName>
of the
<collectorName id="26D95339FFB6A95D34DAF9C8FE21F979" box="[210,422,1644,1671]" pageId="2" pageNumber="233">División Ficologia</collectorName>
“
<collectorName id="26D95339FFB6A95D35B2F9C9FD74F979" box="[442,755,1644,1670]" pageId="2" pageNumber="233">Dr. Sebastián A. Guarrera</collectorName>
”,
<location id="8EF36034FFB6A95D3702F9C9FBFCF979" LSID="urn:lsid:plazi:treatment:038587F9FFB6A95D3480FD91FE01F834:8EF36034FFB6A95D3702F9C9FBFCF979" box="[778,1147,1644,1670]" country="Brazil" county="Rio Grande" latitude="-32.02067" longLatPrecision="1" longitude="-52.099747" municipality="Polvora Island" name="Faculdad de Ciencias Naturales" pageId="2" pageNumber="233" stateProvince="Rio Grande do Sul">Faculdad de Ciencias Naturales</location>
y
<collectorName id="26D95339FFB6A95D3091F9C8FB61F979" box="[1177,1254,1645,1670]" pageId="2" pageNumber="233">Museo</collectorName>
,
<collectorName id="26D95339FFB6A95D30FBF9C9FAE4F979" box="[1267,1379,1644,1670]" pageId="2" pageNumber="233">Argentina</collectorName>
)
</emphasis>
, here designated
</materialsCitation>
.
</paragraph>
</subSubSection>
<subSubSection id="C3366564FFB6A95D34B5F911FA9CF930" box="[189,1307,1716,1744]" pageId="2" pageNumber="233" type="etymology">
<paragraph id="8B9336EFFFB6A95D34B5F911FA9CF930" blockId="2.[136,1452,636,1995]" box="[189,1307,1716,1744]" pageId="2" pageNumber="233">
<emphasis id="B958EAFDFFB6A95D34B5F911FECFF931" bold="true" box="[189,328,1716,1742]" pageId="2" pageNumber="233">Etymology:</emphasis>
—The specific epithet refers to the valve shape that resembles an “S” (σίγμα in Greek).
</paragraph>
</subSubSection>
<subSubSection id="C3366564FFB6A95D34B5F97DFA9DF8A1" pageId="2" pageNumber="233" type="biology_ecology">
<paragraph id="8B9336EFFFB6A95D34B5F97DFA9DF8A1" blockId="2.[136,1452,636,1995]" pageId="2" pageNumber="233">
<emphasis id="B958EAFDFFB6A95D34B5F97DFEA1F90D" bold="true" box="[189,294,1752,1778]" pageId="2" pageNumber="233">Ecology:</emphasis>
—
<taxonomicName id="4C2C4D6CFFB6A95D354AF97DFE65F90D" authorityName="Talgatti, Sar &amp; Torgan" authorityYear="2014" box="[322,482,1752,1778]" class="Bacillariophyceae" family="Naviculaceae" genus="Haslea" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="2" pageNumber="233" phylum="Bacillariophyta" rank="species" species="sigma">
<emphasis id="B958EAFDFFB6A95D354AF97DFE65F90D" box="[322,482,1752,1778]" italics="true" pageId="2" pageNumber="233">Haslea sigma</emphasis>
</taxonomicName>
was found as the second most abundant species (14.79%) and the only unique representative of the genus on the sediment surface on Pólvora Island. Other abundant taxa were
<taxonomicName id="4C2C4D6CFFB6A95D3095F959FEF0F8C4" authority="Cholnoky (1957: 76)" authorityName="Cholnoky" authorityPageNumber="76" authorityYear="1957" class="Monogenea" family="Capsalidae" genus="Nitzschia" kingdom="Animalia" order="Capsalidea" pageId="2" pageNumber="233" phylum="Platyhelminthes" rank="species" species="rautenbachiae">
<emphasis id="B958EAFDFFB6A95D3095F959FA2BF8E9" box="[1181,1452,1788,1814]" italics="true" pageId="2" pageNumber="233">Nitzschia rautenbachiae</emphasis>
<bibRefCitation id="EFBD4B1EFFB6A95D3480F885FEF0F8C4" author="Cholnoky, B. J." box="[136,375,1824,1851]" pageId="2" pageNumber="233" pagination="25 - 99" refId="ref3870" refString="Cholnoky, B. J. (1957) Neue und seltene Diatomeen aus Afrika. III. Diatomeen aus dem Tugela-Flusssystem, hauptsachlich aus den Drakensbergen in Natal. Osterreichische Botanische Zeitschrift 104 (1 / 2): 25 - 99. http: // dx. doi. org / 10.1007 / bf 01289120" type="journal article" year="1957">Cholnoky (1957: 76)</bibRefCitation>
</taxonomicName>
,
<taxonomicName id="4C2C4D6CFFB6A95D358CF885FDA4F8C4" box="[388,547,1824,1851]" class="Monogenea" family="Capsalidae" genus="Nitzschia" kingdom="Animalia" order="Capsalidea" pageId="2" pageNumber="233" phylum="Platyhelminthes" rank="species" species="undetermined">
<emphasis id="B958EAFDFFB6A95D358CF885FE6BF8C5" box="[388,492,1824,1850]" italics="true" pageId="2" pageNumber="233">Nitzschia</emphasis>
spp.
</taxonomicName>
and
<taxonomicName id="4C2C4D6CFFB6A95D3653F885FD71F8C4" box="[603,758,1824,1851]" class="Bacillariophyceae" family="Naviculaceae" genus="Navicula" kingdom="Chromista" order="Naviculales" pageId="2" pageNumber="233" phylum="Ochrophyta" rank="species" species="undetermined">
<emphasis id="B958EAFDFFB6A95D3653F885FD47F8C5" box="[603,704,1824,1850]" italics="true" pageId="2" pageNumber="233">Navicula</emphasis>
spp.
</taxonomicName>
This sediment was composed mainly by clay (79%) and silt (13%). The taxon was found alive in oligohaline zone (salinity 3.0 ‰), at temperature 20 ºC and pH 7.1.
</paragraph>
</subSubSection>
<subSubSection id="C3366564FFB6A95D34B5F8CDFE01F834" pageId="2" pageNumber="233" type="diagnosis">
<paragraph id="8B9336EFFFB6A95D34B5F8CDFE01F834" blockId="2.[136,1452,636,1995]" pageId="2" pageNumber="233">
<emphasis id="B958EAFDFFB6A95D34B5F8CDFEBDF87D" bold="true" box="[189,314,1896,1922]" pageId="2" pageNumber="233">Diagnosis:</emphasis>
—
<taxonomicName id="4C2C4D6CFFB6A95D355EF8CDFE77F87D" authorityName="Talgatti, Sar &amp; Torgan" authorityYear="2014" box="[342,496,1896,1922]" class="Bacillariophyceae" family="Naviculaceae" genus="Haslea" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="2" pageNumber="233" phylum="Bacillariophyta" rank="species" species="sigma">
<emphasis id="B958EAFDFFB6A95D355EF8CDFE77F87D" box="[342,496,1896,1922]" italics="true" pageId="2" pageNumber="233">Haslea sigma</emphasis>
</taxonomicName>
differs from
<taxonomicName id="4C2C4D6CFFB6A95D3680F8CDFBF7F87D" authority="(Meister) Poulin &amp; Masse" authorityName="Poulin &amp; Masse" baseAuthorityName="Meister" box="[648,1136,1896,1923]" class="Bacillariophyceae" family="Naviculaceae" genus="Haslea" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="2" pageNumber="233" phylum="Bacillariophyta" rank="species" species="nipkowii">
<emphasis id="B958EAFDFFB6A95D3680F8CDFCC7F87D" box="[648,832,1896,1922]" italics="true" pageId="2" pageNumber="233">Haslea nipkowii</emphasis>
(Meister) Poulin &amp; Massé
</taxonomicName>
by having thickened virgae forming a pseudostauros, central raphe fissures almost straight (not overlapping), and terminal raphe fissures slightly curved (not T-shaped).
</paragraph>
</subSubSection>
</treatment>
</document>
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