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<document id="A8514635978CC153375B14168D6C66A6" ID-DOI="10.11646/phytotaxa.154.1.1" ID-ISSN="1179-3163" ID-Zenodo-Dep="5100778" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1626240419267" checkinUser="felipe" docAuthor="Kociolek, John P., Kulikovskiy, Maxim S. &amp; Solak, Cüneyt N." docDate="2013" docId="242F87F03A4BDD1AB6FDFA99F6A8F876" docLanguage="en" docName="Phytotaxa.154.1.1-37.pdf" docOrigin="Phytotaxa 154 (1)" docSource="http://dx.doi.org/10.11646/phytotaxa.154.1.1" docStyle="DocumentStyle:13F189B31CB4CCCE9197361A4E100104.3:Phytotaxa.2011-2013.journal_article" docStyleId="13F189B31CB4CCCE9197361A4E100104" docStyleName="Phytotaxa.2011-2013.journal_article" docStyleVersion="3" docTitle="Gomphoneis potapovae Kociolek &amp; Kulikovskiy &amp; Solak 2013, sp. nov." docType="treatment" docVersion="3" lastPageNumber="18" masterDocId="D816FF883A5ADD0BB66AFFF4F32DFF84" masterDocTitle="The diatom genus Gomphoneis Cleve (Bacillariophyceae) from Lake Baikal, Russia" masterLastPageNumber="37" masterPageNumber="1" pageNumber="18" updateTime="1699007394933" updateUser="plazi" zenodo-license-document="CLOSED">
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<mods:title id="23771B0D6A5AD86CE8FEA030F47C924E">The diatom genus Gomphoneis Cleve (Bacillariophyceae) from Lake Baikal, Russia</mods:title>
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<mods:namePart id="FE652F25B9FFC19EC31F862D88BDD76D">Kociolek, John P.</mods:namePart>
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<mods:namePart id="C82CF1CD508763472870FBC8E0C79A79">Kulikovskiy, Maxim S.</mods:namePart>
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<mods:namePart id="0C8E834D3C065206BFF05536694629FD">Solak, Cüneyt N.</mods:namePart>
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<paragraph id="AC3936E63A4BDD1AB6FDFA99F74CFA03" blockId="17.[151,1121,1389,1415]" box="[151,1121,1389,1415]" pageId="17" pageNumber="18">
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<taxonomicName id="6B864D653A4BDD1AB6FDFA99F1FFFA03" authority="Kociolek &amp; Kulikovskiy" authorityName="Kociolek &amp; Kulikovskiy &amp; Solak" authorityYear="2013" box="[151,722,1389,1415]" class="Bacillariophyceae" family="Gomphonemataceae" genus="Gomphoneis" higherTaxonomySource="GBIF" kingdom="Chromista" order="Cymbellales" pageId="17" pageNumber="18" phylum="Ochrophyta" rank="species" species="potapovae" status="sp. nov.">
<emphasis id="9EF2EAF43A4BDD1AB6FDFA99F281FA03" bold="true" box="[151,428,1389,1415]" italics="true" pageId="17" pageNumber="18">Gomphoneis potapovae</emphasis>
Kociolek &amp; Kulikovskiy
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,
<emphasis id="9EF2EAF43A4BDD1AB4B4FA99F01AFA02" box="[734,823,1389,1414]" italics="true" pageId="17" pageNumber="18">
<taxonomicNameLabel id="85C1578F3A4BDD1AB4B4FA99F01AFA02" box="[734,823,1389,1414]" pageId="17" pageNumber="18" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
(
<figureCitation id="34BD2A633A4BDD1AB52FFA99F0CAFA03" box="[837,999,1389,1415]" captionStart="PLATE 8" captionStartId="18.[151,229,1708,1729]" captionTargetBox="[151,1436,153,1677]" captionTargetId="figure-161@18.[151,1436,153,1683]" captionTargetPageId="18" captionText="PLATE 8: LM. Figs 283286: Gomphoneis baicaliana sp. nov. Fig. 285 is of the holotype. Figs 287304: G. fourtanierae sp. nov. Fig. 288 is of the holotype. Figs 305315: G. potapovae sp. nov. Fig. 307 is of the holotype. Figs 316327: G.strelnikovae sp. nov. Fig. 319 is of the holotype. Figs 328334: G. minuscula sp. nov. Fig. 333 is of the holotype. Figs 335352: G. capitata sp. nov. Fig. 336 is of the holotype. Scale bar = 10 µm for all figures." figureDoi="http://doi.org/10.5281/zenodo.5100804" httpUri="https://zenodo.org/record/5100804/files/figure.png" pageId="17" pageNumber="18">Figs 305315</figureCitation>
,
<figureCitation id="34BD2A633A4BDD1AB598FA99F774FA03" box="[1010,1113,1389,1415]" captionStart="PLATE 17" captionStartId="33.[151,229,1667,1688]" captionTargetBox="[198,1384,191,1645]" captionTargetId="figure-273@33.[198,1384,191,1645]" captionTargetPageId="33" captionText="PLATE 17: SEM. Gomphoneis strelnikovae. Figs 412416: Figs 412, 413: External valve views showing the raph brach with dilated proximal raphe ends. Even though the striae around the central area terminate with a single areolae, there are not stigmoids internally. The apical pore field is positioned entirely on the valve mantle, porelli do not extend onto the valve face. Figs 414416: Internal views. The central nodule is not well distinguished from the rest of the central area, and bears the proximal raphe ends that recurved in the same direction. Helictoglossae and pseudosepta are present at the poles. G. potapovae. Figs 417419: Figs 417418: External valve views showing straight raphe with slightly dilated proximal ends. The doubly punctate striae end in single areolae; those around the central area appear larger than others. Porelli are located on the valve mantle. Fig. 4192: Internal valve view with septa evident at the poles, along with helictoglossae. The central nodule is raised internally, and bears the proximal raphe ends recurved in the same direction. G. sp. cf. reichardtii. Figs 420421: Fig. 420: Internal valve view with 4 isolated stigmoids evident. Their openings are simple. The central nodule is small, and bears recurved proximal raphe ends. The poles have helictoglossae and pseudosepta. Fig. 421: External view showing the apical pore field restricted to the valve mantle. The raphe is slightly undulate, and the proximal raphe ends are dilated." figureDoi="http://doi.org/10.5281/zenodo.5100825" httpUri="https://zenodo.org/record/5100825/files/figure.png" pageId="17" pageNumber="18">417419</figureCitation>
)
</heading>
</paragraph>
<paragraph id="AC3936E63A4BDD1AB6FDFA4FF0C1F9EB" blockId="17.[151,1436,1467,2034]" pageId="17" pageNumber="18">
Valves lanceolate-clavate with apices rounded. Length
<quantity id="6B7E9B033A4BDD1AB558FA4FF09CFA51" box="[818,945,1467,1493]" metricMagnitude="-2" metricUnit="m" metricValue="2.05" metricValueMax="2.8" metricValueMin="1.3" pageId="17" pageNumber="18" unit="mm" value="20.5" valueMax="28.0" valueMin="13.0">1328 µm</quantity>
, breadth 4.06.0 µm. Axial area narrow, expanded to form a small X-shaped central area, bordered by 23 shortened striae on either side near the margin. Stigmoids wanting. Raphe weakly lateral, with external proximal raphe ends dilated, distal raphe ends deflected onto valve mantle. Costate striae radiate, except parallel towards the headpole. Striae 1620/
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. Apical pore fields barely visible. Septa and pseudosepta present at poles.
</paragraph>
</subSubSection>
<subSubSection id="E49C656D3A4BDD1AB6ACF988F001F88E" pageId="17" pageNumber="18" type="description">
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In the SEM the central area appears to bear isolated areolae externally (
<figureCitation id="34BD2A633A4BDD1AB272F988F7EDF912" box="[1048,1216,1660,1686]" captionStart="PLATE 17" captionStartId="33.[151,229,1667,1688]" captionTargetBox="[198,1384,191,1645]" captionTargetId="figure-273@33.[198,1384,191,1645]" captionTargetPageId="33" captionText="PLATE 17: SEM. Gomphoneis strelnikovae. Figs 412416: Figs 412, 413: External valve views showing the raph brach with dilated proximal raphe ends. Even though the striae around the central area terminate with a single areolae, there are not stigmoids internally. The apical pore field is positioned entirely on the valve mantle, porelli do not extend onto the valve face. Figs 414416: Internal views. The central nodule is not well distinguished from the rest of the central area, and bears the proximal raphe ends that recurved in the same direction. Helictoglossae and pseudosepta are present at the poles. G. potapovae. Figs 417419: Figs 417418: External valve views showing straight raphe with slightly dilated proximal ends. The doubly punctate striae end in single areolae; those around the central area appear larger than others. Porelli are located on the valve mantle. Fig. 4192: Internal valve view with septa evident at the poles, along with helictoglossae. The central nodule is raised internally, and bears the proximal raphe ends recurved in the same direction. G. sp. cf. reichardtii. Figs 420421: Fig. 420: Internal valve view with 4 isolated stigmoids evident. Their openings are simple. The central nodule is small, and bears recurved proximal raphe ends. The poles have helictoglossae and pseudosepta. Fig. 421: External view showing the apical pore field restricted to the valve mantle. The raphe is slightly undulate, and the proximal raphe ends are dilated." figureDoi="http://doi.org/10.5281/zenodo.5100825" httpUri="https://zenodo.org/record/5100825/files/figure.png" pageId="17" pageNumber="18">Figs 417, 418</figureCitation>
), but those are not visible internally (
<figureCitation id="34BD2A633A4BDD1AB71AF957F2F4F939" box="[368,473,1699,1725]" captionStart="PLATE 17" captionStartId="33.[151,229,1667,1688]" captionTargetBox="[198,1384,191,1645]" captionTargetId="figure-273@33.[198,1384,191,1645]" captionTargetPageId="33" captionText="PLATE 17: SEM. Gomphoneis strelnikovae. Figs 412416: Figs 412, 413: External valve views showing the raph brach with dilated proximal raphe ends. Even though the striae around the central area terminate with a single areolae, there are not stigmoids internally. The apical pore field is positioned entirely on the valve mantle, porelli do not extend onto the valve face. Figs 414416: Internal views. The central nodule is not well distinguished from the rest of the central area, and bears the proximal raphe ends that recurved in the same direction. Helictoglossae and pseudosepta are present at the poles. G. potapovae. Figs 417419: Figs 417418: External valve views showing straight raphe with slightly dilated proximal ends. The doubly punctate striae end in single areolae; those around the central area appear larger than others. Porelli are located on the valve mantle. Fig. 4192: Internal valve view with septa evident at the poles, along with helictoglossae. The central nodule is raised internally, and bears the proximal raphe ends recurved in the same direction. G. sp. cf. reichardtii. Figs 420421: Fig. 420: Internal valve view with 4 isolated stigmoids evident. Their openings are simple. The central nodule is small, and bears recurved proximal raphe ends. The poles have helictoglossae and pseudosepta. Fig. 421: External view showing the apical pore field restricted to the valve mantle. The raphe is slightly undulate, and the proximal raphe ends are dilated." figureDoi="http://doi.org/10.5281/zenodo.5100825" httpUri="https://zenodo.org/record/5100825/files/figure.png" pageId="17" pageNumber="18">Fig. 419</figureCitation>
). The external proximal raphe ends are dilated slightly, and the apical pore fields are positioned almost entirely on the valve mantle (
<figureCitation id="34BD2A633A4BDD1AB497F93DF08FF967" box="[765,930,1737,1763]" captionStart="PLATE 17" captionStartId="33.[151,229,1667,1688]" captionTargetBox="[198,1384,191,1645]" captionTargetId="figure-273@33.[198,1384,191,1645]" captionTargetPageId="33" captionText="PLATE 17: SEM. Gomphoneis strelnikovae. Figs 412416: Figs 412, 413: External valve views showing the raph brach with dilated proximal raphe ends. Even though the striae around the central area terminate with a single areolae, there are not stigmoids internally. The apical pore field is positioned entirely on the valve mantle, porelli do not extend onto the valve face. Figs 414416: Internal views. The central nodule is not well distinguished from the rest of the central area, and bears the proximal raphe ends that recurved in the same direction. Helictoglossae and pseudosepta are present at the poles. G. potapovae. Figs 417419: Figs 417418: External valve views showing straight raphe with slightly dilated proximal ends. The doubly punctate striae end in single areolae; those around the central area appear larger than others. Porelli are located on the valve mantle. Fig. 4192: Internal valve view with septa evident at the poles, along with helictoglossae. The central nodule is raised internally, and bears the proximal raphe ends recurved in the same direction. G. sp. cf. reichardtii. Figs 420421: Fig. 420: Internal valve view with 4 isolated stigmoids evident. Their openings are simple. The central nodule is small, and bears recurved proximal raphe ends. The poles have helictoglossae and pseudosepta. Fig. 421: External view showing the apical pore field restricted to the valve mantle. The raphe is slightly undulate, and the proximal raphe ends are dilated." figureDoi="http://doi.org/10.5281/zenodo.5100825" httpUri="https://zenodo.org/record/5100825/files/figure.png" pageId="17" pageNumber="18">Fig. 417, 418</figureCitation>
). Internally there are prominent septa, and the recurved proximal raphe ends are evident (
<figureCitation id="34BD2A633A4BDD1AB4D2F904F032F88E" box="[696,799,1776,1802]" captionStart="PLATE 17" captionStartId="33.[151,229,1667,1688]" captionTargetBox="[198,1384,191,1645]" captionTargetId="figure-273@33.[198,1384,191,1645]" captionTargetPageId="33" captionText="PLATE 17: SEM. Gomphoneis strelnikovae. Figs 412416: Figs 412, 413: External valve views showing the raph brach with dilated proximal raphe ends. Even though the striae around the central area terminate with a single areolae, there are not stigmoids internally. The apical pore field is positioned entirely on the valve mantle, porelli do not extend onto the valve face. Figs 414416: Internal views. The central nodule is not well distinguished from the rest of the central area, and bears the proximal raphe ends that recurved in the same direction. Helictoglossae and pseudosepta are present at the poles. G. potapovae. Figs 417419: Figs 417418: External valve views showing straight raphe with slightly dilated proximal ends. The doubly punctate striae end in single areolae; those around the central area appear larger than others. Porelli are located on the valve mantle. Fig. 4192: Internal valve view with septa evident at the poles, along with helictoglossae. The central nodule is raised internally, and bears the proximal raphe ends recurved in the same direction. G. sp. cf. reichardtii. Figs 420421: Fig. 420: Internal valve view with 4 isolated stigmoids evident. Their openings are simple. The central nodule is small, and bears recurved proximal raphe ends. The poles have helictoglossae and pseudosepta. Fig. 421: External view showing the apical pore field restricted to the valve mantle. The raphe is slightly undulate, and the proximal raphe ends are dilated." figureDoi="http://doi.org/10.5281/zenodo.5100825" httpUri="https://zenodo.org/record/5100825/files/figure.png" pageId="17" pageNumber="18">Fig. 419</figureCitation>
).
</paragraph>
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<emphasis id="9EF2EAF43A4BDD1AB6ACF8E2F206F8B4" bold="true" box="[198,299,1814,1840]" pageId="17" pageNumber="18">Type:—</emphasis>
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<collectingCountry id="D49176763A4BDD1AB741F8E2F2B5F8B4" box="[299,408,1814,1840]" name="Russia" pageId="17" pageNumber="18">RUSSIA</collectingCountry>
:
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,
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,
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, 1998,
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sample (
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slide for Station 8, collection 8.0,
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designated here (=
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);
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slide no. Station 8, collection 8.0m, isotype)
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.
</paragraph>
</subSubSection>
<subSubSection id="E49C656D3A4BDD1AB6ACF87FF6A8F876" pageId="17" pageNumber="18" type="etymology">
<paragraph id="AC3936E63A4BDD1AB6ACF87FF1BBF84F" blockId="17.[151,1436,1467,2034]" pageId="17" pageNumber="18">
<emphasis id="9EF2EAF43A4BDD1AB6ACF87FF259F821" bold="true" box="[198,372,1931,1957]" pageId="17" pageNumber="18">Etymology:—</emphasis>
Named in honor of our friend and colleague, Dr.
<taxonomicName id="6B864D653A4BDD1AB5ABF87FF613F821" authority="Potapova (Philadelphia)" box="[961,1342,1931,1957]" class="Magnoliopsida" family="Fabaceae" genus="Marina" kingdom="Plantae" order="Fabales" pageId="17" pageNumber="18" phylum="Tracheophyta" rank="genus">Marina Potapova (Philadelphia)</taxonomicName>
, for her many contributions to the study of diatoms.
</paragraph>
<paragraph id="AC3936E63A4BDD1AB6ACF82CF6A8F876" blockId="17.[151,1436,1467,2034]" box="[198,1413,2007,2034]" pageId="17" pageNumber="18">
<emphasis id="9EF2EAF43A4BDD1AB6ACF82CF2BEF876" bold="true" box="[198,403,2008,2034]" pageId="17" pageNumber="18">Observations:—</emphasis>
Differs from
<taxonomicName id="6B864D653A4BDD1AB447F823F1F6F875" authorityName="Kociolek &amp; Kulikovskiy &amp; Solak" authorityYear="2013" box="[557,731,2007,2033]" class="Bacillariophyceae" family="Gomphonemataceae" genus="Gomphoneis" higherTaxonomySource="GBIF" kingdom="Chromista" order="Cymbellales" pageId="17" pageNumber="18" phylum="Ochrophyta" rank="species" species="strelnikovae">
<emphasis id="9EF2EAF43A4BDD1AB447F823F1F6F875" box="[557,731,2007,2033]" italics="true" pageId="17" pageNumber="18">G. strelnikovae</emphasis>
</taxonomicName>
by the larger valves and rounded not protracted headpole.
</paragraph>
</subSubSection>
</treatment>
</document>