166 lines
28 KiB
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166 lines
28 KiB
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<document id="57D88F1622CB66B2906AFDC9A5B26FC0" ID-CLB-Dataset="245033" ID-DOI="10.5252/cryptogamie-algologie2021v42a13" ID-GBIF-Dataset="82ddef57-2a25-4cce-b92c-cbc85f507f07" ID-ISSN="1776-0992" ID-Zenodo-Dep="7819267" IM.bibliography_approvedBy="tatiana" IM.illustrations_approvedBy="tatiana" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects" IM.taxonomicNames_approvedBy="felipe" IM.treatments_approvedBy="tatiana" checkinTime="1681242194612" checkinUser="felipe" docAuthor="Saber, Abdullah A., Angeli, Nicola, Lange-Bertalot, Horst, Kociolek, John P., Spitale, Daniel, Charles, Donald F. & Cantonati, Marco" docDate="2021" docId="FA5FD005FFFBDB1FFEE86583FAE0FA24" docLanguage="en" docName="CryptogamieAlgologie.42.13.217-229.pdf" docOrigin="Cryptogamie, Algologie 20 (13)" docSource="http://dx.doi.org/10.5252/cryptogamie-algologie2021v42a13" docStyle="DocumentStyle:C31C23F805CBAD2BB1C6021F66949308.6:CryptogamieAlgologie.2019-.journal_article" docStyleId="C31C23F805CBAD2BB1C6021F66949308" docStyleName="CryptogamieAlgologie.2019-.journal_article" docStyleVersion="6" docTitle="Rhoicosphenula Lange-Bert., Kociolek, A. A. Saber & Cantonati 2021, stat. nov." docType="treatment" docVersion="7" lastPageNumber="221" masterDocId="0666A87DFFFDDB19FF996311FFB8FFE9" masterDocTitle="Rise of subgen. Rhoicosphenula Lange-Bert. to the genus level, and description of a new Gomphosphenia s. s. species from Puerto Rico" masterLastPageNumber="229" masterPageNumber="217" pageNumber="221" updateTime="1699513885379" updateUser="ExternalLinkService" zenodo-license-document="CC0-1.0" zenodo-license-figures="CC0-1.0" zenodo-license-treatments="UNSPECIFIED">
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<mods:title id="6E423CEB20DADABDEE55B6DF6CB31641">Rise of subgen. Rhoicosphenula Lange-Bert. to the genus level, and description of a new Gomphosphenia s. s. species from Puerto Rico</mods:title>
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<mods:namePart id="A9F25CED9BE2286706FF27E558011440">Saber, Abdullah A.</mods:namePart>
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<mods:affiliation id="8ECB6F5DC91DAF8CE1926822DFB98C5A">Botany Department, Faculty of Science, Ain Shams University, Abbassia Square, Cairo 11566 (Egypt) and MUSE - Museo delle Scienze, Limnology and Phycology Section, Corso del Lavoro e della Scienza 3, 38123 Trento (Italy)</mods:affiliation>
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<mods:namePart id="4FFB2B7911B5A56AE4977F541B420B2B">Angeli, Nicola</mods:namePart>
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<mods:affiliation id="9E2D8EFBF679BB0B05191D1CE6D3F035">MUSE - Museo delle Scienze, Limnology & Phycology Section, Corso del Lavoro e della Scienza 3, I- 38123 Trento (Italy)</mods:affiliation>
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<mods:namePart id="399171590B8A918C7CEF225ACC26F32A">Lange-Bertalot, Horst</mods:namePart>
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<mods:affiliation id="266BEE27DC68FA13831710FCF55B95B8">Goethe Universität Frankfurt, Biologicum, Max-von-Laue Straβe 13, 60438 Frankfurt (Germany)</mods:affiliation>
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<mods:namePart id="DCB4CAB510FE37A3A44CB831E6098DCE">Kociolek, John P.</mods:namePart>
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<mods:affiliation id="CF9AE71020597AC01A2C189C84FFC167">Museum of Natural History and Department of Ecology and Evolutionary Biology, University of Colorado, Boulder, CO 80309 (United States)</mods:affiliation>
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<mods:namePart id="AD985FB8FD20E29FF34AE49B80166FF5">Spitale, Daniel</mods:namePart>
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<mods:affiliation id="66D8B37E3B77D8E69D265B5FB9316D48">MUSE - Museo delle Scienze, Limnology & Phycology Section, Corso del Lavoro e della Scienza 3, I- 38123 Trento (Italy)</mods:affiliation>
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<mods:namePart id="9F08FDE4B101F5861C09A137808A35B0">Charles, Donald F.</mods:namePart>
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<mods:affiliation id="19191C5D9B2133513113C2CD9A2637AA">Patrick Center for Environmental Research, Academy of Natural Sciences of Drexel University, Philadelphia, PA 19103 (United States)</mods:affiliation>
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<mods:namePart id="88766B653FF64E9403EAAA33CB1870F1">Cantonati, Marco</mods:namePart>
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<mods:affiliation id="A0AB1FF94B6971D3DC2C1AD1BF6C7422">MUSE - Museo delle Scienze, Limnology & Phycology Section, Corso del Lavoro e della Scienza 3, I- 38123 Trento (Italy) and Patrick Center for Environmental Research, Academy of Natural Sciences of Drexel University, Philadelphia, PA 19103 (United States) marco. cantonati @ muse. it (corresponding author)</mods:affiliation>
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<mods:nameIdentifier id="DD15A98E3BA0ADBBE87BD50891612DA5" type="email">cantonati@muse.it</mods:nameIdentifier>
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<mods:title id="7A84E6D6D75BAF92724D69E1E668C63A">Cryptogamie, Algologie</mods:title>
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<mods:date id="A709BB4D38BC7CA5900D4A12301624E6">2021</mods:date>
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<mods:number id="D8FA89A8D89738E4F7FD77B4A1062AA6">2021-09-29</mods:number>
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<mods:number id="77158F37CDBBF6F85ACFC68FE356822B">20</mods:number>
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<mods:number id="AB46E21859EE1D1CC537712463BF5970">13</mods:number>
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<treatment id="FA5FD005FFFBDB1FFEE86583FAE0FA24" ID-DOI="http://doi.org/10.5281/zenodo.7819269" ID-GBIF-Taxon="209499299" ID-Zenodo-Dep="7819269" LSID="urn:lsid:plazi:treatment:FA5FD005FFFBDB1FFEE86583FAE0FA24" httpUri="http://treatment.plazi.org/id/FA5FD005FFFBDB1FFEE86583FAE0FA24" lastPageNumber="221" pageId="6" pageNumber="221">
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<taxonomicName id="B5F61A90FFFBDB1FFEE86583FD35F925" authority="Lange-Bert., Kociolek, A. A. Saber & Cantonati" authorityName="Lange-Bert., Kociolek, A. A. Saber & Cantonati" authorityYear="2021" class="Bacillariophyceae" family="Rhoicospheniaceae" genus="Rhoicosphenula" higherTaxonomySource="GBIF" kingdom="Chromista" order="Cymbellales" pageId="6" pageNumber="221" phylum="Ochrophyta" rank="genus" status="stat. nov.">
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<emphasis id="4082BD01FFFBDB1FFEE86583FDA2F944" bold="true" box="[369,538,1682,1709]" italics="true" pageId="6" pageNumber="221">Rhoicosphenula</emphasis>
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Lange-Bert., Kociolek, A.A.Saber & Cantonati
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</taxonomicName>
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,
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<taxonomicNameLabel id="5BB1007AFFFBDB1FFD0065A2FD42F924" box="[665,762,1715,1741]" pageId="6" pageNumber="221">stat. nov.</taxonomicNameLabel>
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</paragraph>
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<subSubSection id="3AEC3298FFFBDB1FFE1665C3FE44F905" box="[399,508,1746,1772]" pageId="6" pageNumber="221" type="description">
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<paragraph id="72496113FFFBDB1FFE1665C3FE44F905" blockId="6.[399,508,1746,1772]" box="[399,508,1746,1772]" pageId="6" pageNumber="221">
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<heading id="2901D67FFFFBDB1FFE1665C3FE44F905" box="[399,508,1746,1772]" centered="true" fontSize="11" level="3" pageId="6" pageNumber="221" reason="3">
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(
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<figureCitation id="EACD7D96FFFBDB1FFE0165C3FE6FF905" box="[408,471,1746,1772]" captionStart="FIG" captionStartId="6.[132,143,980,998]" captionTargetBox="[132,1455,215,936]" captionTargetId="figure-467@6.[698,1267,213,755]" captionTargetPageId="6" captionText="FIG. 2. — LM micrographs of the generitype species (R. paradoxa) of Rhoicosphenula Lange-Bert.,Kociolek, A.A.Saber & Cantonati,stat. nov.,depicting the valve size-diminution series in valve (A-F) and girdle view (G-I); G undergoing division process) of the holotype specimens. Note the pseudosepta at the head- and footpole, the proximal raphe pores which are well separated and broadened (A-F) whilst the internal endings are closer to each other (see e.g., bright contours in B). Scale bar: 10 μm. From Lange-Bertalot (1995) mod." figureDoi="http://doi.org/10.5281/zenodo.7819273" httpUri="https://zenodo.org/record/7819273/files/figure.png" pageId="6" pageNumber="221">Figs 2</figureCitation>
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,
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<figureCitation id="EACD7D96FFFBDB1FFE7C65C3FE4BF905" box="[485,499,1746,1772]" captionStart="FIG" captionStartId="7.[132,143,1033,1051]" captionTargetBox="[132,1455,215,982]" captionTargetId="figure-622@7.[131,794,213,727]" captionTargetPageId="7" captionText="FIG. 3. — SEM micrographs of the generitype species (R. paradoxa) of Rhoicosphenula Lange-Bert., Kociolek, A.A.Saber & Cantonati, stat. nov. External views (A, B); internal views (C-H): A, complete frustule (note the slit-like areole on valve face and mantle); B, hypovalve (left) with footpole immersed in the six girdle bands, which appear totally hyaline; they are alternately open and closed at each pole; C, valve with apposed valvocopula and a further copula; D, headpole; the valvocopula forms a septum; the valve pseudoseptum is thus mostly covered, only a triangle remains visible; E, valve footpole with pseudoseptum and open valvocopula (no further copula); F, exposed fracture of the right valve margin: the transapical ribs and the alveoli covered by hymenes become visible; G, exposed fracture at the pseudoseptum; H, the corroded hymenes allow a view of the areolae which are more numerous and differently shaped than the slit-like external foramina. Scale bars: A, C, 2 μm; B, D-H, 1 μm. From Lange-Bertalot (1995) mod." figureDoi="http://doi.org/10.5281/zenodo.7819277" httpUri="https://zenodo.org/record/7819277/files/figure.png" pageId="6" pageNumber="221">3</figureCitation>
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)
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</heading>
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</paragraph>
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</subSubSection>
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<subSubSection id="3AEC3298FFFBDB1FFF02641DFD67F8CD" box="[155,735,1804,1829]" pageId="6" pageNumber="221" type="reference_group">
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<paragraph id="72496113FFFBDB1FFF02641DFD67F8CD" blockId="6.[155,735,1804,1829]" box="[155,735,1804,1829]" pageId="6" pageNumber="221">
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<treatmentCitationGroup id="52E6463DFFFBDB1FFF02641DFD67F8CD" box="[155,735,1804,1829]" pageId="6" pageNumber="221">
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<taxonomicName id="B5F61A90FFFBDB1FFF02641DFE1EF8CC" authority="Lange-Bert." authorityName="Lange-Bert., Kociolek, A. A. Saber & Cantonati" authorityYear="2021" box="[155,422,1804,1829]" class="Bacillariophyceae" family="Rhoicospheniaceae" genus="Rhoicosphenula" higherTaxonomySource="GBIF" kingdom="Chromista" order="Cymbellales" pageId="6" pageNumber="221" phylum="Ochrophyta" rank="genus">
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<emphasis id="4082BD01FFFBDB1FFF02641DFE93F8CD" box="[155,299,1804,1828]" italics="true" pageId="6" pageNumber="221">Rhoicosphenula</emphasis>
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Lange-Bert.
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</taxonomicName>
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<treatmentCitation id="F3574702FFFBDB1FFE32641CFD63F8CD" author="Lange-Bert., Kociolek, A. A. Saber & Cantonati" box="[427,731,1804,1828]" journal="Nova Hedwigia" page="244" pageId="6" pageNumber="221" score="202.82472018338322" volume="60" year="1995">
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<bibCitation id="A7DC697FFFFBDB1FFE32641CFD63F8CD" box="[427,731,1804,1828]" journal="Nova Hedwigia" page="244" pageId="6" pageNumber="221" score="202.82472018338322" volume="60" year="1995">
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<emphasis id="4082BD01FFFBDB1FFE32641CFD86F8CD" box="[427,574,1804,1828]" italics="true" pageId="6" pageNumber="221">Nova Hedwigia</emphasis>
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60: 244 (1995)
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</bibCitation>
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</treatmentCitation>
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.
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</treatmentCitationGroup>
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</paragraph>
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</subSubSection>
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<subSubSection id="3AEC3298FFFBDB1FFF1D645CFBC0FAB0" pageId="6" pageNumber="221" type="description">
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<paragraph id="72496113FFFBDB1FFF1D645CFBC0FAB0" blockId="6.[130,776,1869,2025]" lastBlockId="6.[811,1456,1107,1369]" pageId="6" pageNumber="221">
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Cells solitary, not forming colonies or aggregates, growing as epiphytes on small mucilaginous stalks. Frustules almost rectangular in girdle view, sometimes appearing slightly broadly wedge-shaped (
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<figureCitation id="EACD7D96FFFBDB1FFD3B6490FD6EF873" box="[674,726,1921,1946]" captionStart="FIG" captionStartId="6.[132,143,980,998]" captionTargetBox="[132,1455,215,936]" captionTargetId="figure-467@6.[698,1267,213,755]" captionTargetPageId="6" captionText="FIG. 2. — LM micrographs of the generitype species (R. paradoxa) of Rhoicosphenula Lange-Bert.,Kociolek, A.A.Saber & Cantonati,stat. nov.,depicting the valve size-diminution series in valve (A-F) and girdle view (G-I); G undergoing division process) of the holotype specimens. Note the pseudosepta at the head- and footpole, the proximal raphe pores which are well separated and broadened (A-F) whilst the internal endings are closer to each other (see e.g., bright contours in B). Scale bar: 10 μm. From Lange-Bertalot (1995) mod." figureDoi="http://doi.org/10.5281/zenodo.7819273" httpUri="https://zenodo.org/record/7819273/files/figure.png" pageId="6" pageNumber="221">Fig. 2</figureCitation>
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G-I). Pseudosepta present on both poles of the valves. Raphe branches straight, with large, well-separated proximal ends (
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<figureCitation id="EACD7D96FFFBDB1FFDE964A7FD10F826" box="[624,680,1974,1999]" captionStart="FIG" captionStartId="6.[132,143,980,998]" captionTargetBox="[132,1455,215,936]" captionTargetId="figure-467@6.[698,1267,213,755]" captionTargetPageId="6" captionText="FIG. 2. — LM micrographs of the generitype species (R. paradoxa) of Rhoicosphenula Lange-Bert.,Kociolek, A.A.Saber & Cantonati,stat. nov.,depicting the valve size-diminution series in valve (A-F) and girdle view (G-I); G undergoing division process) of the holotype specimens. Note the pseudosepta at the head- and footpole, the proximal raphe pores which are well separated and broadened (A-F) whilst the internal endings are closer to each other (see e.g., bright contours in B). Scale bar: 10 μm. From Lange-Bertalot (1995) mod." figureDoi="http://doi.org/10.5281/zenodo.7819273" httpUri="https://zenodo.org/record/7819273/files/figure.png" pageId="6" pageNumber="221">Fig. 2</figureCitation>
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A-F), and with T-shaped distal fissures (
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<figureCitation id="EACD7D96FFFBDB1FFE0464C0FE50F800" box="[413,488,2001,2025]" captionStart="FIG" captionStartId="7.[132,143,1033,1051]" captionTargetBox="[132,1455,215,982]" captionTargetId="figure-622@7.[131,794,213,727]" captionTargetPageId="7" captionText="FIG. 3. — SEM micrographs of the generitype species (R. paradoxa) of Rhoicosphenula Lange-Bert., Kociolek, A.A.Saber & Cantonati, stat. nov. External views (A, B); internal views (C-H): A, complete frustule (note the slit-like areole on valve face and mantle); B, hypovalve (left) with footpole immersed in the six girdle bands, which appear totally hyaline; they are alternately open and closed at each pole; C, valve with apposed valvocopula and a further copula; D, headpole; the valvocopula forms a septum; the valve pseudoseptum is thus mostly covered, only a triangle remains visible; E, valve footpole with pseudoseptum and open valvocopula (no further copula); F, exposed fracture of the right valve margin: the transapical ribs and the alveoli covered by hymenes become visible; G, exposed fracture at the pseudoseptum; H, the corroded hymenes allow a view of the areolae which are more numerous and differently shaped than the slit-like external foramina. Scale bars: A, C, 2 μm; B, D-H, 1 μm. From Lange-Bertalot (1995) mod." figureDoi="http://doi.org/10.5281/zenodo.7819277" httpUri="https://zenodo.org/record/7819277/files/figure.png" pageId="6" pageNumber="221">Fig. 3A</figureCitation>
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). Internal fissures extend onto the central nodule, with short and very faintly bent proximal ends (
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<figureCitation id="EACD7D96FFFBDB1FFCAD677CFC23FB6F" box="[820,923,1133,1158]" captionStart="FIG" captionStartId="7.[132,143,1033,1051]" captionTargetBox="[132,1455,215,982]" captionTargetId="figure-622@7.[131,794,213,727]" captionTargetPageId="7" captionText="FIG. 3. — SEM micrographs of the generitype species (R. paradoxa) of Rhoicosphenula Lange-Bert., Kociolek, A.A.Saber & Cantonati, stat. nov. External views (A, B); internal views (C-H): A, complete frustule (note the slit-like areole on valve face and mantle); B, hypovalve (left) with footpole immersed in the six girdle bands, which appear totally hyaline; they are alternately open and closed at each pole; C, valve with apposed valvocopula and a further copula; D, headpole; the valvocopula forms a septum; the valve pseudoseptum is thus mostly covered, only a triangle remains visible; E, valve footpole with pseudoseptum and open valvocopula (no further copula); F, exposed fracture of the right valve margin: the transapical ribs and the alveoli covered by hymenes become visible; G, exposed fracture at the pseudoseptum; H, the corroded hymenes allow a view of the areolae which are more numerous and differently shaped than the slit-like external foramina. Scale bars: A, C, 2 μm; B, D-H, 1 μm. From Lange-Bertalot (1995) mod." figureDoi="http://doi.org/10.5281/zenodo.7819277" httpUri="https://zenodo.org/record/7819277/files/figure.png" pageId="6" pageNumber="221">Fig. 3C, H</figureCitation>
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). Foramina of the areolae simple, more or less slit-shaped, forming two systems, one on the valve face and one on the mantle, respectively, separated by a hyaline mantle margin (
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<figureCitation id="EACD7D96FFFBDB1FFAAE67B3FA1BFB52" box="[1335,1443,1186,1211]" captionStart="FIG" captionStartId="7.[132,143,1033,1051]" captionTargetBox="[132,1455,215,982]" captionTargetId="figure-622@7.[131,794,213,727]" captionTargetPageId="7" captionText="FIG. 3. — SEM micrographs of the generitype species (R. paradoxa) of Rhoicosphenula Lange-Bert., Kociolek, A.A.Saber & Cantonati, stat. nov. External views (A, B); internal views (C-H): A, complete frustule (note the slit-like areole on valve face and mantle); B, hypovalve (left) with footpole immersed in the six girdle bands, which appear totally hyaline; they are alternately open and closed at each pole; C, valve with apposed valvocopula and a further copula; D, headpole; the valvocopula forms a septum; the valve pseudoseptum is thus mostly covered, only a triangle remains visible; E, valve footpole with pseudoseptum and open valvocopula (no further copula); F, exposed fracture of the right valve margin: the transapical ribs and the alveoli covered by hymenes become visible; G, exposed fracture at the pseudoseptum; H, the corroded hymenes allow a view of the areolae which are more numerous and differently shaped than the slit-like external foramina. Scale bars: A, C, 2 μm; B, D-H, 1 μm. From Lange-Bertalot (1995) mod." figureDoi="http://doi.org/10.5281/zenodo.7819277" httpUri="https://zenodo.org/record/7819277/files/figure.png" pageId="6" pageNumber="221">Fig. 3A, B</figureCitation>
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). Areolae are covered internally by flat hymenes (similar to those of
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<taxonomicName id="B5F61A90FFFBDB1FFCB467C6FC36FB06" authorityName="F.T.Kützing" authorityYear="1836" box="[813,910,1239,1263]" class="Bacillariophyceae" family="Brachysiraceae" genus="Brachysira" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="6" pageNumber="221" phylum="Ochrophyta" rank="genus">
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<emphasis id="4082BD01FFFBDB1FFCB467C6FC36FB06" box="[813,910,1239,1263]" italics="true" pageId="6" pageNumber="221">Brachysira</emphasis>
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</taxonomicName>
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), developing from the sternum to the mantle without any visible interruption (
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<figureCitation id="EACD7D96FFFBDB1FFBBD67E3FB34FAE3" box="[1060,1164,1266,1290]" captionStart="FIG" captionStartId="7.[132,143,1033,1051]" captionTargetBox="[132,1455,215,982]" captionTargetId="figure-622@7.[131,794,213,727]" captionTargetPageId="7" captionText="FIG. 3. — SEM micrographs of the generitype species (R. paradoxa) of Rhoicosphenula Lange-Bert., Kociolek, A.A.Saber & Cantonati, stat. nov. External views (A, B); internal views (C-H): A, complete frustule (note the slit-like areole on valve face and mantle); B, hypovalve (left) with footpole immersed in the six girdle bands, which appear totally hyaline; they are alternately open and closed at each pole; C, valve with apposed valvocopula and a further copula; D, headpole; the valvocopula forms a septum; the valve pseudoseptum is thus mostly covered, only a triangle remains visible; E, valve footpole with pseudoseptum and open valvocopula (no further copula); F, exposed fracture of the right valve margin: the transapical ribs and the alveoli covered by hymenes become visible; G, exposed fracture at the pseudoseptum; H, the corroded hymenes allow a view of the areolae which are more numerous and differently shaped than the slit-like external foramina. Scale bars: A, C, 2 μm; B, D-H, 1 μm. From Lange-Bertalot (1995) mod." figureDoi="http://doi.org/10.5281/zenodo.7819277" httpUri="https://zenodo.org/record/7819277/files/figure.png" pageId="6" pageNumber="221">Fig. 3F, G</figureCitation>
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). The cingulum composed of six unilaterally open bands (
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<figureCitation id="EACD7D96FFFBDB1FFBAE661DFBC7FACD" box="[1079,1151,1292,1316]" captionStart="FIG" captionStartId="7.[132,143,1033,1051]" captionTargetBox="[132,1455,215,982]" captionTargetId="figure-622@7.[131,794,213,727]" captionTargetPageId="7" captionText="FIG. 3. — SEM micrographs of the generitype species (R. paradoxa) of Rhoicosphenula Lange-Bert., Kociolek, A.A.Saber & Cantonati, stat. nov. External views (A, B); internal views (C-H): A, complete frustule (note the slit-like areole on valve face and mantle); B, hypovalve (left) with footpole immersed in the six girdle bands, which appear totally hyaline; they are alternately open and closed at each pole; C, valve with apposed valvocopula and a further copula; D, headpole; the valvocopula forms a septum; the valve pseudoseptum is thus mostly covered, only a triangle remains visible; E, valve footpole with pseudoseptum and open valvocopula (no further copula); F, exposed fracture of the right valve margin: the transapical ribs and the alveoli covered by hymenes become visible; G, exposed fracture at the pseudoseptum; H, the corroded hymenes allow a view of the areolae which are more numerous and differently shaped than the slit-like external foramina. Scale bars: A, C, 2 μm; B, D-H, 1 μm. From Lange-Bertalot (1995) mod." figureDoi="http://doi.org/10.5281/zenodo.7819277" httpUri="https://zenodo.org/record/7819277/files/figure.png" pageId="6" pageNumber="221">Fig. 3B</figureCitation>
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), including the valvocopula and first copula (each with a septum at one of the poles), as well as the four further copulae (
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<figureCitation id="EACD7D96FFFBDB1FFB996650FBD4FAB0" box="[1024,1132,1345,1369]" captionStart="FIG" captionStartId="7.[132,143,1033,1051]" captionTargetBox="[132,1455,215,982]" captionTargetId="figure-622@7.[131,794,213,727]" captionTargetPageId="7" captionText="FIG. 3. — SEM micrographs of the generitype species (R. paradoxa) of Rhoicosphenula Lange-Bert., Kociolek, A.A.Saber & Cantonati, stat. nov. External views (A, B); internal views (C-H): A, complete frustule (note the slit-like areole on valve face and mantle); B, hypovalve (left) with footpole immersed in the six girdle bands, which appear totally hyaline; they are alternately open and closed at each pole; C, valve with apposed valvocopula and a further copula; D, headpole; the valvocopula forms a septum; the valve pseudoseptum is thus mostly covered, only a triangle remains visible; E, valve footpole with pseudoseptum and open valvocopula (no further copula); F, exposed fracture of the right valve margin: the transapical ribs and the alveoli covered by hymenes become visible; G, exposed fracture at the pseudoseptum; H, the corroded hymenes allow a view of the areolae which are more numerous and differently shaped than the slit-like external foramina. Scale bars: A, C, 2 μm; B, D-H, 1 μm. From Lange-Bertalot (1995) mod." figureDoi="http://doi.org/10.5281/zenodo.7819277" httpUri="https://zenodo.org/record/7819277/files/figure.png" pageId="6" pageNumber="221">Fig. 3C, D</figureCitation>
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).
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</paragraph>
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</subSubSection>
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<subSubSection id="3AEC3298FFFBDB1FFCB46660FAE0FA24" pageId="6" pageNumber="221" type="description">
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<paragraph id="72496113FFFBDB1FFCB46660FAB6FA60" blockId="6.[813,1294,1393,1417]" box="[813,1294,1393,1417]" pageId="6" pageNumber="221">REGISTRATION. — http://phycobank.org/102718</paragraph>
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<paragraph id="72496113FFFBDB1FFCB466A5FAE0FA24" blockId="6.[813,1368,1459,1485]" box="[813,1368,1459,1485]" pageId="6" pageNumber="221">
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<emphasis id="4082BD01FFFBDB1FFCB466A5FB81FA24" box="[813,1081,1459,1485]" italics="true" pageId="6" pageNumber="221">New combinations within</emphasis>
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<taxonomicName id="B5F61A90FFFBDB1FFBD966A2FB56FA24" authorityName="Saber & Angeli & Lange-Bertalot & Kociolek & Spitale & Charles & Cantonati" authorityYear="2021" box="[1088,1262,1459,1485]" class="Bacillariophyceae" family="Rhoicospheniaceae" genus="Rhoicosphenula" higherTaxonomySource="GBIF" kingdom="Chromista" order="Cymbellales" pageId="6" pageNumber="228" phylum="Ochrophyta" rank="genus" status="stat. nov.">Rhoicosphenula</taxonomicName>
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<emphasis id="4082BD01FFFBDB1FFB6C66A5FAE0FA24" box="[1269,1368,1460,1485]" italics="true" pageId="6" pageNumber="221">
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<taxonomicNameLabel id="5BB1007AFFFBDB1FFB6C66A5FAEBFA24" box="[1269,1363,1460,1485]" pageId="6" pageNumber="221">stat. nov.</taxonomicNameLabel>
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:
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</emphasis>
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</paragraph>
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</subSubSection>
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</treatment>
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</document> |