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272 lines
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<document id="9958CFD852D37E1840F37E56458D4600" ID-DOI="10.11646/phytotaxa.630.2.2" ID-ISSN="1179-3163" ID-Zenodo-Dep="10376856" IM.bibliography_approvedBy="felipe" IM.illustrations_approvedBy="guilherme" IM.materialsCitations_approvedBy="guilherme" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="GgImagineBatch" IM.taxonomicNames_approvedBy="felipe" IM.treatments_approvedBy="guilherme" checkinTime="1702550850555" checkinUser="plazi" docAuthor="Glushchenko, Anton, Mironov, Andrei, Kuznetsova, Irina & Kulikovskiy, Maxim" docDate="2023" docId="AF19775DC2379125FF10FAF4ED35709C" docLanguage="en" docName="phytotaxa.630.2.2.pdf" docOrigin="Phytotaxa 630 (2)" docSource="https://phytotaxa.mapress.com/pt/article/download/phytotaxa.630.2.2/51366" docStyle="DocumentStyle:96748F8F1B6C902996E134952A3A36B9.13:Phytotaxa.2014-.journal_article" docStyleId="96748F8F1B6C902996E134952A3A36B9" docStyleName="Phytotaxa.2014-.journal_article" docStyleVersion="13" docTitle="Cymbella alexandrovichii Glushchenko, Mironov & Kulikovskiy 2023, sp. nov." docType="treatment" docVersion="1" lastPageNumber="117" masterDocId="53200F25C2369120FF98FFE0EE517160" masterDocTitle="Cymbella alexandrovichii sp. nov. (Cymbellaceae, Bacillariophyceae), a new cymbelloid diatom species with predominantly biseriate striae from South-East Asia" masterLastPageNumber="122" masterPageNumber="112" pageNumber="113" updateTime="1702988486926" updateUser="guilherme" zenodo-license-figures="UNSPECIFIED" zenodo-license-treatments="UNSPECIFIED">
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<mods:title id="8053B905216C625786CF540A66C2158B">Cymbella alexandrovichii sp. nov. (Cymbellaceae, Bacillariophyceae), a new cymbelloid diatom species with predominantly biseriate striae from South-East Asia</mods:title>
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<mods:namePart id="26A8E76356A2987EB03FB0648512B5D8">Glushchenko, Anton</mods:namePart>
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<mods:affiliation id="1445D02B2F0DF691C9A3DBB8B358B975">К. А. Timiryazev Institute of Plant Physiology RAS, IPP RAS, 35 Botanicheskaya St., Moscow, 127276, Russia.</mods:affiliation>
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<mods:namePart id="CF77D5447D8DC369822F215D35C0BC63">Mironov, Andrei</mods:namePart>
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<mods:affiliation id="066CF9F6D161FFAAFEFCF3B70368D3DA">К. А. Timiryazev Institute of Plant Physiology RAS, IPP RAS, 35 Botanicheskaya St., Moscow, 127276, Russia. & Faculty of Biology, M. V. Lomonosov Moscow State University, Leninskie Gory 1, building 12, Moscow, 119234, Russia.</mods:affiliation>
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<mods:nameIdentifier id="4E688F20B5B4738A51E284BD7FDD3045" type="email">diatomironov@yandex.ru</mods:nameIdentifier>
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<mods:namePart id="A67E76EB22D34F0AEA4BA0E7626AC3CE">Kuznetsova, Irina</mods:namePart>
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<mods:affiliation id="C69A1E3991E1258067D57BA4C0A5347D">К. А. Timiryazev Institute of Plant Physiology RAS, IPP RAS, 35 Botanicheskaya St., Moscow, 127276, Russia.</mods:affiliation>
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<mods:nameIdentifier id="01461EA0797F9DA3F8B27C12132FBDE9" type="email">pantao@yandex.ru</mods:nameIdentifier>
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<mods:namePart id="C03DE5770B9E8890E511966EB7957B99">Kulikovskiy, Maxim</mods:namePart>
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<mods:affiliation id="3FE7DF4E5F8FD59FDECEF67D565BCF23">К. А. Timiryazev Institute of Plant Physiology RAS, IPP RAS, 35 Botanicheskaya St., Moscow, 127276, Russia. & К. А. Timiryazev Institute of Plant Physiology RAS, IPP RAS, 35 Botanicheskaya St., Moscow, 127276, Russia.</mods:affiliation>
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<mods:nameIdentifier id="4A8A1D554AE7D3565415078E31246014" type="email">max-kulikovsky@yandex.ru</mods:nameIdentifier>
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<mods:title id="A7EF51AF68295012820D51947DD063DE">Phytotaxa</mods:title>
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<mods:date id="D478EEC501A27D4B5BEA110556464479">2023</mods:date>
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<mods:number id="503354BAD645A2B87146DFC211FABD4D">2023-12-14</mods:number>
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<mods:number id="6D8CF9F93AE896415243F20FB5CF4BF0">630</mods:number>
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<mods:url id="C7DC2F452AF44F9A18FDF9558454AA14">https://phytotaxa.mapress.com/pt/article/download/phytotaxa.630.2.2/51366</mods:url>
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<treatment id="AF19775DC2379125FF10FAF4ED35709C" LSID="urn:lsid:plazi:treatment:AF19775DC2379125FF10FAF4ED35709C" httpUri="http://treatment.plazi.org/id/AF19775DC2379125FF10FAF4ED35709C" lastPageId="5" lastPageNumber="117" pageId="1" pageNumber="113">
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<subSubSection id="6FAA95C0C2379121FF10FAF4EEA37432" pageId="1" pageNumber="113" type="nomenclature">
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<paragraph id="270FC64BC2379121FF10FAF4EEA37432" blockId="1.[136,1451,1300,1362]" pageId="1" pageNumber="113">
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<emphasis id="15C41A59C2379121FF10FAF4EA45744E" bold="true" box="[136,1044,1300,1327]" pageId="1" pageNumber="113">
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<taxonomicName id="E0B0BDC8C2379121FF10FAF4EDF6744E" authority="Glushchenko, Mironov & Kulikovskiy" authorityName="Glushchenko, Mironov & Kulikovskiy" authorityYear="2023" box="[136,935,1300,1327]" class="Bacillariophyceae" family="Cymbellaceae" genus="Cymbella" higherTaxonomySource="GBIF" kingdom="Chromista" order="Cymbellales" pageId="1" pageNumber="113" phylum="Ochrophyta" rank="species" species="alexandrovichii" status="sp. nov.">
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<emphasis id="15C41A59C2379121FF10FAF4EFE9744F" bold="true" box="[136,440,1300,1327]" italics="true" pageId="1" pageNumber="113">Cymbella alexandrovichii</emphasis>
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Glushchenko, Mironov & Kulikovskiy
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<emphasis id="15C41A59C2379121FC2EFAF4EA45744E" bold="true" box="[950,1044,1300,1326]" italics="true" pageId="1" pageNumber="113">
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<taxonomicNameLabel id="0EF7A722C2379121FC2EFAF4EA45744E" box="[950,1044,1300,1326]" pageId="1" pageNumber="113" rank="species">sp. nov.</taxonomicNameLabel>
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<figureCitation id="BF8BDACEC2379121FBBBFAF4EACC744E" box="[1059,1181,1300,1326]" captionStart-0="FIGURES 1–8" captionStart-1="FIGURES 9–14" captionStart-2="FIGURES 15–20" captionStartId-0="2.[136,248,1707,1729]" captionStartId-1="3.[136,243,1671,1693]" captionStartId-2="4.[136,243,1778,1800]" captionTargetBox-0="[151,1435,187,1680]" captionTargetBox-1="[151,1435,190,1647]" captionTargetBox-2="[151,1435,190,1754]" captionTargetId-0="figure-18@2.[151,1435,187,1680]" captionTargetId-1="figure-28@3.[151,1435,190,1647]" captionTargetId-2="figure-18@4.[151,1435,190,1754]" captionTargetPageId-0="2" captionTargetPageId-1="3" captionTargetPageId-2="4" captionText-0="FIGURES 1–8. Cymbella alexandrovichii sp. nov. LM, DIC, type material, slide no. 01612. Fig. 2 represents the holotype. 1–6. Size diminution series. 7. Details of the central area. 8. Details of the valve end. Scale bars = 10 μm (Figs 1–6), 2 μm (Figs 7–8)." captionText-1="FIGURES 9–14. Cymbella alexandrovichii sp. nov. SEM, type material, sample no. 01612. External valve surface. 9. The whole valve, note the slightly widened central branches of the raphe (white arrowheads); terminal raphe fissure (black arrowhead); Voigt discontinuities (black arrow). 10–12. Details of the central area, note the slightly widened central branches of the raphe (10, white arrowheads); biseriate (10, black arrowheads) and uniseriate striae (11, white arrowheads) with single slit-like (12, white arrows) or round (11–12, white arrowheads) areolae; ventral stigmata (10–11, black arrows). 13–14. Details of the apices, note the terminal raphe fissure (13, black arrowhead); biseriate striae on the valve mantle (13–14, black arrows); apical pore field (13–14, white arrowhead). Scale bars = 10 µm (Fig. 9), 2 µm (Figs 10, 12), 1 µm (Figs 11, 13–14)." captionText-2="FIGURES 15–20. Cymbella alexandrovichii sp. nov. SEM, type material, sample no. 01612. Internal valve surface. 15. The whole valve, note that the interstriae wider than striae (white arrows). 16–17. Details of the central areae, note the closed terminal nodule (16–17, black arrows); interstriae wider than striae (16, white arrows); rounded or elongated stigmata openings, surrounded by fine ingrowths from their perimeter (16–17, white arrowheads). 18. Internal structure of striae, note the Voigt discontinuity (18, white arrow). Alveolate striae are located in depressions between interstriae (virgae) (18, black arrows) and occlusions are absent. 19–20. Details of the apices, note the APFs (19–20, black arrows); helictoglossa (19–20, black arrowheads); the interstriae that are narrower than striae (19–20, white arrows). Scale bars = 5 µm (Fig. 15), 2 µm (Fig. 16), 1 µm (Figs 17–20)." figureDoi-0="http://doi.org/10.5281/zenodo.10376858" figureDoi-1="http://doi.org/10.5281/zenodo.10376860" figureDoi-2="http://doi.org/10.5281/zenodo.10376862" httpUri-0="https://zenodo.org/record/10376858/files/figure.png" httpUri-1="https://zenodo.org/record/10376860/files/figure.png" httpUri-2="https://zenodo.org/record/10376862/files/figure.png" pageId="1" pageNumber="113">Figs 1–20</figureCitation>
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;
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||
<figureCitation id="BF8BDACEC2379121FB29FAF4EAAB744E" box="[1201,1274,1300,1326]" captionStart="FIGURES 1–8" captionStartId="2.[136,248,1707,1729]" captionTargetBox="[151,1435,187,1680]" captionTargetId="figure-18@2.[151,1435,187,1680]" captionTargetPageId="2" captionText="FIGURES 1–8. Cymbella alexandrovichii sp. nov. LM, DIC, type material, slide no. 01612. Fig. 2 represents the holotype. 1–6. Size diminution series. 7. Details of the central area. 8. Details of the valve end. Scale bars = 10 μm (Figs 1–6), 2 μm (Figs 7–8)." figureDoi="http://doi.org/10.5281/zenodo.10376858" httpUri="https://zenodo.org/record/10376858/files/figure.png" pageId="1" pageNumber="113">Fig. 2</figureCitation>
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represents the
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<typeStatus id="F80B78E9C2379121FF10FAD8EEBF7432" box="[136,238,1336,1362]" pageId="1" pageNumber="113" type="holotype">holotype</typeStatus>
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.
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</paragraph>
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||
</subSubSection>
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<subSubSection id="6FAA95C0C2379122FF10FA60EB04794A" lastPageId="2" lastPageNumber="114" pageId="1" pageNumber="113" type="description">
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<paragraph id="270FC64BC2379121FF10FA60EB6E77F7" blockId="1.[136,1452,1408,2083]" pageId="1" pageNumber="113">
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<emphasis id="15C41A59C2379121FF10FA60EFB474FA" bold="true" box="[136,485,1408,1435]" pageId="1" pageNumber="113">
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LM description (
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<figureCitation id="BF8BDACEC2379121FEC9FA60EFE674FA" box="[337,439,1408,1435]" captionStart="FIGURES 1–8" captionStartId="2.[136,248,1707,1729]" captionTargetBox="[151,1435,187,1680]" captionTargetId="figure-18@2.[151,1435,187,1680]" captionTargetPageId="2" captionText="FIGURES 1–8. Cymbella alexandrovichii sp. nov. LM, DIC, type material, slide no. 01612. Fig. 2 represents the holotype. 1–6. Size diminution series. 7. Details of the central area. 8. Details of the valve end. Scale bars = 10 μm (Figs 1–6), 2 μm (Figs 7–8)." figureDoi="http://doi.org/10.5281/zenodo.10376858" httpUri="https://zenodo.org/record/10376858/files/figure.png" pageId="1" pageNumber="113">Figs 1–8</figureCitation>
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):—
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</emphasis>
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Valves dorsiventral, asymmetrically lanceolate. Dorsal margin convex, ventral margin less convex. Some large specimens have a swelling in the central part. Ends not protracted, cuneate to bluntly rounded, sometimes subrostrate. Length 62.4–76.0 µm, breadth 14.9–16.5 µm. Maximal length/breadth ratio = 4.9. Axial area narrow, linear. Central area absent. Raphe filiform, reverse-lateral (see
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<bibRefCitation id="4321BBBAC2379121FC3DFA0DEA037766" author="Krammer, K." box="[933,1106,1516,1543]" pageId="1" pageNumber="113" refId="ref6999" refString="Krammer, K. (2002) Cymbella. In: Lange-Bertalot, H. (Ed.) Diatoms of Europe. Vol. 3. A. R. G. Gantner Verlag K. G., Ruggell, pp. 1 - 584." type="book" year="2002">Krammer 2002</bibRefCitation>
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, p. 324, pl. 67, fig. 3e), central raphe ends weakly deflected ventrally, tipped with inflated drop-shaped pores. Distal raphe ends are deflected to the dorsal margin. Stigmata 2–3, located on the ventral margin, sometimes not clearly separated from areolae. Striae almost parallel at the central part of valve, becoming radiate and condensing at the very valve ends,
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<quantity id="E0486BAEC2379121FB6DF9B8EB6C7712" box="[1269,1341,1624,1650]" metricMagnitude="-1" metricUnit="m" metricValue="1.905" metricValueMax="2.032" metricValueMin="1.778" pageId="1" pageNumber="113" unit="in" value="7.5" valueMax="8.0" valueMin="7.0">7–8 in</quantity>
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10 µm in the central portion,
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<quantity id="E0486BAEC2379121FEFBF99CEFFB77F6" box="[355,426,1660,1686]" metricMagnitude="-1" metricUnit="m" metricValue="2.159" metricValueMax="2.286" metricValueMin="2.032" pageId="1" pageNumber="113" unit="in" value="8.5" valueMax="9.0" valueMin="8.0">8–9 in</quantity>
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10 µm near the ends. Biseriate organization of striae is difficult to resolve in LM.
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||
</paragraph>
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<paragraph id="270FC64BC2379121FF25F940EF137943" blockId="1.[136,1452,1408,2083]" pageId="1" pageNumber="113">
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<emphasis id="15C41A59C2379121FF25F940ECED77DA" bold="true" box="[189,700,1696,1723]" pageId="1" pageNumber="113">
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SEM, external valve surface (
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<figureCitation id="BF8BDACEC2379121FD83F940ECDF77DA" box="[539,654,1696,1723]" captionStart="FIGURES 9–14" captionStartId="3.[136,243,1671,1693]" captionTargetBox="[151,1435,190,1647]" captionTargetId="figure-28@3.[151,1435,190,1647]" captionTargetPageId="3" captionText="FIGURES 9–14. Cymbella alexandrovichii sp. nov. SEM, type material, sample no. 01612. External valve surface. 9. The whole valve, note the slightly widened central branches of the raphe (white arrowheads); terminal raphe fissure (black arrowhead); Voigt discontinuities (black arrow). 10–12. Details of the central area, note the slightly widened central branches of the raphe (10, white arrowheads); biseriate (10, black arrowheads) and uniseriate striae (11, white arrowheads) with single slit-like (12, white arrows) or round (11–12, white arrowheads) areolae; ventral stigmata (10–11, black arrows). 13–14. Details of the apices, note the terminal raphe fissure (13, black arrowhead); biseriate striae on the valve mantle (13–14, black arrows); apical pore field (13–14, white arrowhead). Scale bars = 10 µm (Fig. 9), 2 µm (Figs 10, 12), 1 µm (Figs 11, 13–14)." figureDoi="http://doi.org/10.5281/zenodo.10376860" httpUri="https://zenodo.org/record/10376860/files/figure.png" pageId="1" pageNumber="113">Figs 9–14</figureCitation>
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):—
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||
</emphasis>
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The valve face is flat (
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<figureCitation id="BF8BDACEC2379121FC2DF940EDA877DA" box="[949,1017,1696,1722]" captionStart="FIGURES 9–14" captionStartId="3.[136,243,1671,1693]" captionTargetBox="[151,1435,190,1647]" captionTargetId="figure-28@3.[151,1435,190,1647]" captionTargetPageId="3" captionText="FIGURES 9–14. Cymbella alexandrovichii sp. nov. SEM, type material, sample no. 01612. External valve surface. 9. The whole valve, note the slightly widened central branches of the raphe (white arrowheads); terminal raphe fissure (black arrowhead); Voigt discontinuities (black arrow). 10–12. Details of the central area, note the slightly widened central branches of the raphe (10, white arrowheads); biseriate (10, black arrowheads) and uniseriate striae (11, white arrowheads) with single slit-like (12, white arrows) or round (11–12, white arrowheads) areolae; ventral stigmata (10–11, black arrows). 13–14. Details of the apices, note the terminal raphe fissure (13, black arrowhead); biseriate striae on the valve mantle (13–14, black arrows); apical pore field (13–14, white arrowhead). Scale bars = 10 µm (Fig. 9), 2 µm (Figs 10, 12), 1 µm (Figs 11, 13–14)." figureDoi="http://doi.org/10.5281/zenodo.10376860" httpUri="https://zenodo.org/record/10376860/files/figure.png" pageId="1" pageNumber="113">Fig. 9</figureCitation>
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). The central branches of the raphe are slightly widened (
|
||
<figureCitation id="BF8BDACEC2379121FECAF924EF9777BE" box="[338,454,1732,1758]" captionStart="FIGURES 9–14" captionStartId="3.[136,243,1671,1693]" captionTargetBox="[151,1435,190,1647]" captionTargetId="figure-28@3.[151,1435,190,1647]" captionTargetPageId="3" captionText="FIGURES 9–14. Cymbella alexandrovichii sp. nov. SEM, type material, sample no. 01612. External valve surface. 9. The whole valve, note the slightly widened central branches of the raphe (white arrowheads); terminal raphe fissure (black arrowhead); Voigt discontinuities (black arrow). 10–12. Details of the central area, note the slightly widened central branches of the raphe (10, white arrowheads); biseriate (10, black arrowheads) and uniseriate striae (11, white arrowheads) with single slit-like (12, white arrows) or round (11–12, white arrowheads) areolae; ventral stigmata (10–11, black arrows). 13–14. Details of the apices, note the terminal raphe fissure (13, black arrowhead); biseriate striae on the valve mantle (13–14, black arrows); apical pore field (13–14, white arrowhead). Scale bars = 10 µm (Fig. 9), 2 µm (Figs 10, 12), 1 µm (Figs 11, 13–14)." figureDoi="http://doi.org/10.5281/zenodo.10376860" httpUri="https://zenodo.org/record/10376860/files/figure.png" pageId="1" pageNumber="113">Figs 9–10</figureCitation>
|
||
, white arrowheads). Terminal raphe fissures do not reach the apical pore fields, strongly deflected to the dorsal margins (
|
||
<figureCitation id="BF8BDACEC2379121FE61F908ECCA7662" box="[505,667,1768,1794]" captionStart="FIGURES 9–14" captionStartId="3.[136,243,1671,1693]" captionTargetBox="[151,1435,190,1647]" captionTargetId="figure-28@3.[151,1435,190,1647]" captionTargetPageId="3" captionText="FIGURES 9–14. Cymbella alexandrovichii sp. nov. SEM, type material, sample no. 01612. External valve surface. 9. The whole valve, note the slightly widened central branches of the raphe (white arrowheads); terminal raphe fissure (black arrowhead); Voigt discontinuities (black arrow). 10–12. Details of the central area, note the slightly widened central branches of the raphe (10, white arrowheads); biseriate (10, black arrowheads) and uniseriate striae (11, white arrowheads) with single slit-like (12, white arrows) or round (11–12, white arrowheads) areolae; ventral stigmata (10–11, black arrows). 13–14. Details of the apices, note the terminal raphe fissure (13, black arrowhead); biseriate striae on the valve mantle (13–14, black arrows); apical pore field (13–14, white arrowhead). Scale bars = 10 µm (Fig. 9), 2 µm (Figs 10, 12), 1 µm (Figs 11, 13–14)." figureDoi="http://doi.org/10.5281/zenodo.10376860" httpUri="https://zenodo.org/record/10376860/files/figure.png" pageId="1" pageNumber="113">Figs 9, 13–14</figureCitation>
|
||
, black arrowheads). Apical pore fields located on the valve margins, consist of round pores, similar in shape and size to the adjacent areolae (
|
||
<figureCitation id="BF8BDACEC2379121FC42F8ECEA0E7646" box="[986,1119,1804,1830]" captionStart="FIGURES 9–14" captionStartId="3.[136,243,1671,1693]" captionTargetBox="[151,1435,190,1647]" captionTargetId="figure-28@3.[151,1435,190,1647]" captionTargetPageId="3" captionText="FIGURES 9–14. Cymbella alexandrovichii sp. nov. SEM, type material, sample no. 01612. External valve surface. 9. The whole valve, note the slightly widened central branches of the raphe (white arrowheads); terminal raphe fissure (black arrowhead); Voigt discontinuities (black arrow). 10–12. Details of the central area, note the slightly widened central branches of the raphe (10, white arrowheads); biseriate (10, black arrowheads) and uniseriate striae (11, white arrowheads) with single slit-like (12, white arrows) or round (11–12, white arrowheads) areolae; ventral stigmata (10–11, black arrows). 13–14. Details of the apices, note the terminal raphe fissure (13, black arrowhead); biseriate striae on the valve mantle (13–14, black arrows); apical pore field (13–14, white arrowhead). Scale bars = 10 µm (Fig. 9), 2 µm (Figs 10, 12), 1 µm (Figs 11, 13–14)." figureDoi="http://doi.org/10.5281/zenodo.10376860" httpUri="https://zenodo.org/record/10376860/files/figure.png" pageId="1" pageNumber="113">Figs 13–14</figureCitation>
|
||
, white arrows). Stigmata are present ventrally, rounded and crater-like (
|
||
<figureCitation id="BF8BDACEC2379121FDC5F8D0EC8A762A" box="[605,731,1840,1866]" captionStart="FIGURES 9–14" captionStartId="3.[136,243,1671,1693]" captionTargetBox="[151,1435,190,1647]" captionTargetId="figure-28@3.[151,1435,190,1647]" captionTargetPageId="3" captionText="FIGURES 9–14. Cymbella alexandrovichii sp. nov. SEM, type material, sample no. 01612. External valve surface. 9. The whole valve, note the slightly widened central branches of the raphe (white arrowheads); terminal raphe fissure (black arrowhead); Voigt discontinuities (black arrow). 10–12. Details of the central area, note the slightly widened central branches of the raphe (10, white arrowheads); biseriate (10, black arrowheads) and uniseriate striae (11, white arrowheads) with single slit-like (12, white arrows) or round (11–12, white arrowheads) areolae; ventral stigmata (10–11, black arrows). 13–14. Details of the apices, note the terminal raphe fissure (13, black arrowhead); biseriate striae on the valve mantle (13–14, black arrows); apical pore field (13–14, white arrowhead). Scale bars = 10 µm (Fig. 9), 2 µm (Figs 10, 12), 1 µm (Figs 11, 13–14)." figureDoi="http://doi.org/10.5281/zenodo.10376860" httpUri="https://zenodo.org/record/10376860/files/figure.png" pageId="1" pageNumber="113">Figs 10–11</figureCitation>
|
||
, black arrows). Each of the striae consists of two rows of areolae, arranged alternately, the areola closest to the axial area is single (
|
||
<figureCitation id="BF8BDACEC2379121FCE1F8B4ED9C760E" box="[889,973,1876,1902]" captionStart="FIGURES 9–14" captionStartId="3.[136,243,1671,1693]" captionTargetBox="[151,1435,190,1647]" captionTargetId="figure-28@3.[151,1435,190,1647]" captionTargetPageId="3" captionText="FIGURES 9–14. Cymbella alexandrovichii sp. nov. SEM, type material, sample no. 01612. External valve surface. 9. The whole valve, note the slightly widened central branches of the raphe (white arrowheads); terminal raphe fissure (black arrowhead); Voigt discontinuities (black arrow). 10–12. Details of the central area, note the slightly widened central branches of the raphe (10, white arrowheads); biseriate (10, black arrowheads) and uniseriate striae (11, white arrowheads) with single slit-like (12, white arrows) or round (11–12, white arrowheads) areolae; ventral stigmata (10–11, black arrows). 13–14. Details of the apices, note the terminal raphe fissure (13, black arrowhead); biseriate striae on the valve mantle (13–14, black arrows); apical pore field (13–14, white arrowhead). Scale bars = 10 µm (Fig. 9), 2 µm (Figs 10, 12), 1 µm (Figs 11, 13–14)." figureDoi="http://doi.org/10.5281/zenodo.10376860" httpUri="https://zenodo.org/record/10376860/files/figure.png" pageId="1" pageNumber="113">Fig. 12</figureCitation>
|
||
, white arrowheads). In the central part of the valve, several dorsal biseriate striae may become uniseriate (
|
||
<figureCitation id="BF8BDACEC2379121FCC6F898EDE176F2" box="[862,944,1912,1938]" captionStart="FIGURES 9–14" captionStartId="3.[136,243,1671,1693]" captionTargetBox="[151,1435,190,1647]" captionTargetId="figure-28@3.[151,1435,190,1647]" captionTargetPageId="3" captionText="FIGURES 9–14. Cymbella alexandrovichii sp. nov. SEM, type material, sample no. 01612. External valve surface. 9. The whole valve, note the slightly widened central branches of the raphe (white arrowheads); terminal raphe fissure (black arrowhead); Voigt discontinuities (black arrow). 10–12. Details of the central area, note the slightly widened central branches of the raphe (10, white arrowheads); biseriate (10, black arrowheads) and uniseriate striae (11, white arrowheads) with single slit-like (12, white arrows) or round (11–12, white arrowheads) areolae; ventral stigmata (10–11, black arrows). 13–14. Details of the apices, note the terminal raphe fissure (13, black arrowhead); biseriate striae on the valve mantle (13–14, black arrows); apical pore field (13–14, white arrowhead). Scale bars = 10 µm (Fig. 9), 2 µm (Figs 10, 12), 1 µm (Figs 11, 13–14)." figureDoi="http://doi.org/10.5281/zenodo.10376860" httpUri="https://zenodo.org/record/10376860/files/figure.png" pageId="1" pageNumber="113">Fig. 11</figureCitation>
|
||
, white arrowheads). Voigt discontinuities are present (
|
||
<figureCitation id="BF8BDACEC2379121FF7FF87CEF7B76D6" box="[231,298,1948,1974]" captionStart="FIGURES 9–14" captionStartId="3.[136,243,1671,1693]" captionTargetBox="[151,1435,190,1647]" captionTargetId="figure-28@3.[151,1435,190,1647]" captionTargetPageId="3" captionText="FIGURES 9–14. Cymbella alexandrovichii sp. nov. SEM, type material, sample no. 01612. External valve surface. 9. The whole valve, note the slightly widened central branches of the raphe (white arrowheads); terminal raphe fissure (black arrowhead); Voigt discontinuities (black arrow). 10–12. Details of the central area, note the slightly widened central branches of the raphe (10, white arrowheads); biseriate (10, black arrowheads) and uniseriate striae (11, white arrowheads) with single slit-like (12, white arrows) or round (11–12, white arrowheads) areolae; ventral stigmata (10–11, black arrows). 13–14. Details of the apices, note the terminal raphe fissure (13, black arrowhead); biseriate striae on the valve mantle (13–14, black arrows); apical pore field (13–14, white arrowhead). Scale bars = 10 µm (Fig. 9), 2 µm (Figs 10, 12), 1 µm (Figs 11, 13–14)." figureDoi="http://doi.org/10.5281/zenodo.10376860" httpUri="https://zenodo.org/record/10376860/files/figure.png" pageId="1" pageNumber="113">Fig. 9</figureCitation>
|
||
, black arrow). Areolae openings in central part of the valve usually rounded (
|
||
<figureCitation id="BF8BDACEC2379121FBE4F87CEA9C76D6" box="[1148,1229,1948,1974]" captionStart="FIGURES 9–14" captionStartId="3.[136,243,1671,1693]" captionTargetBox="[151,1435,190,1647]" captionTargetId="figure-28@3.[151,1435,190,1647]" captionTargetPageId="3" captionText="FIGURES 9–14. Cymbella alexandrovichii sp. nov. SEM, type material, sample no. 01612. External valve surface. 9. The whole valve, note the slightly widened central branches of the raphe (white arrowheads); terminal raphe fissure (black arrowhead); Voigt discontinuities (black arrow). 10–12. Details of the central area, note the slightly widened central branches of the raphe (10, white arrowheads); biseriate (10, black arrowheads) and uniseriate striae (11, white arrowheads) with single slit-like (12, white arrows) or round (11–12, white arrowheads) areolae; ventral stigmata (10–11, black arrows). 13–14. Details of the apices, note the terminal raphe fissure (13, black arrowhead); biseriate striae on the valve mantle (13–14, black arrows); apical pore field (13–14, white arrowhead). Scale bars = 10 µm (Fig. 9), 2 µm (Figs 10, 12), 1 µm (Figs 11, 13–14)." figureDoi="http://doi.org/10.5281/zenodo.10376860" httpUri="https://zenodo.org/record/10376860/files/figure.png" pageId="1" pageNumber="113">Fig. 10</figureCitation>
|
||
, black arrowheads). Areolae on the valve margins become uniseriate and slit-like (
|
||
<figureCitation id="BF8BDACEC2379121FCA7F820EDC076BA" box="[831,913,1984,2010]" captionStart="FIGURES 9–14" captionStartId="3.[136,243,1671,1693]" captionTargetBox="[151,1435,190,1647]" captionTargetId="figure-28@3.[151,1435,190,1647]" captionTargetPageId="3" captionText="FIGURES 9–14. Cymbella alexandrovichii sp. nov. SEM, type material, sample no. 01612. External valve surface. 9. The whole valve, note the slightly widened central branches of the raphe (white arrowheads); terminal raphe fissure (black arrowhead); Voigt discontinuities (black arrow). 10–12. Details of the central area, note the slightly widened central branches of the raphe (10, white arrowheads); biseriate (10, black arrowheads) and uniseriate striae (11, white arrowheads) with single slit-like (12, white arrows) or round (11–12, white arrowheads) areolae; ventral stigmata (10–11, black arrows). 13–14. Details of the apices, note the terminal raphe fissure (13, black arrowhead); biseriate striae on the valve mantle (13–14, black arrows); apical pore field (13–14, white arrowhead). Scale bars = 10 µm (Fig. 9), 2 µm (Figs 10, 12), 1 µm (Figs 11, 13–14)." figureDoi="http://doi.org/10.5281/zenodo.10376860" httpUri="https://zenodo.org/record/10376860/files/figure.png" pageId="1" pageNumber="113">Fig. 12</figureCitation>
|
||
, white arrows), except for the striae at the valve ends, where they are rounded and biseriate (
|
||
<figureCitation id="BF8BDACEC2379121FD1EF804ED5B769E" box="[646,778,2020,2046]" captionStart="FIGURES 9–14" captionStartId="3.[136,243,1671,1693]" captionTargetBox="[151,1435,190,1647]" captionTargetId="figure-28@3.[151,1435,190,1647]" captionTargetPageId="3" captionText="FIGURES 9–14. Cymbella alexandrovichii sp. nov. SEM, type material, sample no. 01612. External valve surface. 9. The whole valve, note the slightly widened central branches of the raphe (white arrowheads); terminal raphe fissure (black arrowhead); Voigt discontinuities (black arrow). 10–12. Details of the central area, note the slightly widened central branches of the raphe (10, white arrowheads); biseriate (10, black arrowheads) and uniseriate striae (11, white arrowheads) with single slit-like (12, white arrows) or round (11–12, white arrowheads) areolae; ventral stigmata (10–11, black arrows). 13–14. Details of the apices, note the terminal raphe fissure (13, black arrowhead); biseriate striae on the valve mantle (13–14, black arrows); apical pore field (13–14, white arrowhead). Scale bars = 10 µm (Fig. 9), 2 µm (Figs 10, 12), 1 µm (Figs 11, 13–14)." figureDoi="http://doi.org/10.5281/zenodo.10376860" httpUri="https://zenodo.org/record/10376860/files/figure.png" pageId="1" pageNumber="113">Figs 13–14</figureCitation>
|
||
, black arrows). Areolae (in one of the rows of one striae),
|
||
<quantity id="E0486BAEC2379121FF10F7E8EEBA7942" box="[136,235,2056,2082]" metricMagnitude="-1" metricUnit="m" metricValue="7.493" metricValueMax="8.128" metricValueMin="6.858" pageId="1" pageNumber="113" unit="in" value="29.5" valueMax="32.0" valueMin="27.0">27–32 in</quantity>
|
||
10 µm.
|
||
</paragraph>
|
||
<caption id="73CF96C3C2349122FF10F94BEB7D7785" ID-DOI="http://doi.org/10.5281/zenodo.10376858" ID-Zenodo-Dep="10376858" httpUri="https://zenodo.org/record/10376858/files/figure.png" pageId="2" pageNumber="114" startId="2.[136,248,1707,1729]" targetBox="[151,1435,187,1680]" targetPageId="2" targetType="figure">
|
||
<paragraph id="270FC64BC2349122FF10F94BEB7D7785" blockId="2.[136,1451,1707,1765]" pageId="2" pageNumber="114">
|
||
<emphasis id="15C41A59C2349122FF10F94BEF7B77A1" bold="true" box="[136,298,1707,1729]" pageId="2" pageNumber="114">FIGURES 1–8.</emphasis>
|
||
<emphasis id="15C41A59C2349122FEAAF94BEC2F77A1" box="[306,638,1707,1729]" italics="true" pageId="2" pageNumber="114">
|
||
<taxonomicName id="E0B0BDC8C2349122FEAAF94BEC7D77A0" authority="Glushchenko & Mironov & Kuznetsova & Kulikovskiy, 2023" authorityName="Glushchenko & Mironov & Kuznetsova & Kulikovskiy" authorityYear="2023" box="[306,556,1707,1728]" class="Bacillariophyceae" family="Cymbellaceae" genus="Cymbella" higherTaxonomySource="GBIF" kingdom="Chromista" order="Cymbellales" pageId="2" pageNumber="114" phylum="Ochrophyta" rank="species" species="alexandrovichii" status="sp. nov.">Cymbella alexandrovichii</taxonomicName>
|
||
<taxonomicNameLabel id="0EF7A722C2349122FDABF94CEC2F77A1" box="[563,638,1708,1729]" pageId="2" pageNumber="114" rank="species">sp. nov.</taxonomicNameLabel>
|
||
</emphasis>
|
||
LM, DIC, type material, slide no. 01612. Fig. 2 represents the holotype. 1–6. Size diminution series. 7. Details of the central area. 8. Details of the valve end. Scale bars = 10 μm (Figs 1–6), 2 μm (Figs 7–8).
|
||
</paragraph>
|
||
</caption>
|
||
<paragraph id="270FC64BC2349122FF25F8F4EB04794A" blockId="2.[136,1452,1811,2090]" pageId="2" pageNumber="114">
|
||
<emphasis id="15C41A59C2349122FF25F8F4EC3A764D" bold="true" box="[189,619,1811,1838]" pageId="2" pageNumber="114">
|
||
SEM, internal view (
|
||
<figureCitation id="BF8BDACEC2349122FE22F8F3EC6E764D" box="[442,575,1811,1838]" captionStart="FIGURES 15–20" captionStartId="4.[136,243,1778,1800]" captionTargetBox="[151,1435,190,1754]" captionTargetId="figure-18@4.[151,1435,190,1754]" captionTargetPageId="4" captionText="FIGURES 15–20. Cymbella alexandrovichii sp. nov. SEM, type material, sample no. 01612. Internal valve surface. 15. The whole valve, note that the interstriae wider than striae (white arrows). 16–17. Details of the central areae, note the closed terminal nodule (16–17, black arrows); interstriae wider than striae (16, white arrows); rounded or elongated stigmata openings, surrounded by fine ingrowths from their perimeter (16–17, white arrowheads). 18. Internal structure of striae, note the Voigt discontinuity (18, white arrow). Alveolate striae are located in depressions between interstriae (virgae) (18, black arrows) and occlusions are absent. 19–20. Details of the apices, note the APFs (19–20, black arrows); helictoglossa (19–20, black arrowheads); the interstriae that are narrower than striae (19–20, white arrows). Scale bars = 5 µm (Fig. 15), 2 µm (Fig. 16), 1 µm (Figs 17–20)." figureDoi="http://doi.org/10.5281/zenodo.10376862" httpUri="https://zenodo.org/record/10376862/files/figure.png" pageId="2" pageNumber="114">Figs 15–20</figureCitation>
|
||
):—
|
||
</emphasis>
|
||
The raphe is arcuate (
|
||
<figureCitation id="BF8BDACEC2349122FCFEF8F4EDED764F" box="[870,956,1812,1839]" captionStart="FIGURES 15–20" captionStartId="4.[136,243,1778,1800]" captionTargetBox="[151,1435,190,1754]" captionTargetId="figure-18@4.[151,1435,190,1754]" captionTargetPageId="4" captionText="FIGURES 15–20. Cymbella alexandrovichii sp. nov. SEM, type material, sample no. 01612. Internal valve surface. 15. The whole valve, note that the interstriae wider than striae (white arrows). 16–17. Details of the central areae, note the closed terminal nodule (16–17, black arrows); interstriae wider than striae (16, white arrows); rounded or elongated stigmata openings, surrounded by fine ingrowths from their perimeter (16–17, white arrowheads). 18. Internal structure of striae, note the Voigt discontinuity (18, white arrow). Alveolate striae are located in depressions between interstriae (virgae) (18, black arrows) and occlusions are absent. 19–20. Details of the apices, note the APFs (19–20, black arrows); helictoglossa (19–20, black arrowheads); the interstriae that are narrower than striae (19–20, white arrows). Scale bars = 5 µm (Fig. 15), 2 µm (Fig. 16), 1 µm (Figs 17–20)." figureDoi="http://doi.org/10.5281/zenodo.10376862" httpUri="https://zenodo.org/record/10376862/files/figure.png" pageId="2" pageNumber="114">Fig. 15</figureCitation>
|
||
). Central raphe endings are covered by the outgrowth of silica (
|
||
<figureCitation id="BF8BDACEC2349122FEE9F8D8EFA47632" box="[369,501,1848,1874]" captionStart="FIGURES 15–20" captionStartId="4.[136,243,1778,1800]" captionTargetBox="[151,1435,190,1754]" captionTargetId="figure-18@4.[151,1435,190,1754]" captionTargetPageId="4" captionText="FIGURES 15–20. Cymbella alexandrovichii sp. nov. SEM, type material, sample no. 01612. Internal valve surface. 15. The whole valve, note that the interstriae wider than striae (white arrows). 16–17. Details of the central areae, note the closed terminal nodule (16–17, black arrows); interstriae wider than striae (16, white arrows); rounded or elongated stigmata openings, surrounded by fine ingrowths from their perimeter (16–17, white arrowheads). 18. Internal structure of striae, note the Voigt discontinuity (18, white arrow). Alveolate striae are located in depressions between interstriae (virgae) (18, black arrows) and occlusions are absent. 19–20. Details of the apices, note the APFs (19–20, black arrows); helictoglossa (19–20, black arrowheads); the interstriae that are narrower than striae (19–20, white arrows). Scale bars = 5 µm (Fig. 15), 2 µm (Fig. 16), 1 µm (Figs 17–20)." figureDoi="http://doi.org/10.5281/zenodo.10376862" httpUri="https://zenodo.org/record/10376862/files/figure.png" pageId="2" pageNumber="114">Figs 16–17</figureCitation>
|
||
, black arrows). Distal raphe ends terminate with small helictoglossae (
|
||
<figureCitation id="BF8BDACEC2349122FABBF8D8EBF67632" box="[1315,1447,1848,1874]" captionStart="FIGURES 15–20" captionStartId="4.[136,243,1778,1800]" captionTargetBox="[151,1435,190,1754]" captionTargetId="figure-18@4.[151,1435,190,1754]" captionTargetPageId="4" captionText="FIGURES 15–20. Cymbella alexandrovichii sp. nov. SEM, type material, sample no. 01612. Internal valve surface. 15. The whole valve, note that the interstriae wider than striae (white arrows). 16–17. Details of the central areae, note the closed terminal nodule (16–17, black arrows); interstriae wider than striae (16, white arrows); rounded or elongated stigmata openings, surrounded by fine ingrowths from their perimeter (16–17, white arrowheads). 18. Internal structure of striae, note the Voigt discontinuity (18, white arrow). Alveolate striae are located in depressions between interstriae (virgae) (18, black arrows) and occlusions are absent. 19–20. Details of the apices, note the APFs (19–20, black arrows); helictoglossa (19–20, black arrowheads); the interstriae that are narrower than striae (19–20, white arrows). Scale bars = 5 µm (Fig. 15), 2 µm (Fig. 16), 1 µm (Figs 17–20)." figureDoi="http://doi.org/10.5281/zenodo.10376862" httpUri="https://zenodo.org/record/10376862/files/figure.png" pageId="2" pageNumber="114">Figs 19–20</figureCitation>
|
||
, black arrowheads). Helictoglossae deviated to the dorsal margin of the valve and adjacent next to the last dorsal striae (
|
||
<figureCitation id="BF8BDACEC2349122FF08F860EF4576FA" box="[144,276,1920,1946]" captionStart="FIGURES 15–20" captionStartId="4.[136,243,1778,1800]" captionTargetBox="[151,1435,190,1754]" captionTargetId="figure-18@4.[151,1435,190,1754]" captionTargetPageId="4" captionText="FIGURES 15–20. Cymbella alexandrovichii sp. nov. SEM, type material, sample no. 01612. Internal valve surface. 15. The whole valve, note that the interstriae wider than striae (white arrows). 16–17. Details of the central areae, note the closed terminal nodule (16–17, black arrows); interstriae wider than striae (16, white arrows); rounded or elongated stigmata openings, surrounded by fine ingrowths from their perimeter (16–17, white arrowheads). 18. Internal structure of striae, note the Voigt discontinuity (18, white arrow). Alveolate striae are located in depressions between interstriae (virgae) (18, black arrows) and occlusions are absent. 19–20. Details of the apices, note the APFs (19–20, black arrows); helictoglossa (19–20, black arrowheads); the interstriae that are narrower than striae (19–20, white arrows). Scale bars = 5 µm (Fig. 15), 2 µm (Fig. 16), 1 µm (Figs 17–20)." figureDoi="http://doi.org/10.5281/zenodo.10376862" httpUri="https://zenodo.org/record/10376862/files/figure.png" pageId="2" pageNumber="114">Figs 19–20</figureCitation>
|
||
, black arrowheads). Alveolate striae are located in depressions between interstriae (virgae), occlusions absent (
|
||
<figureCitation id="BF8BDACEC2349122FF47F844EF6376DE" box="[223,306,1956,1982]" captionStart="FIGURES 15–20" captionStartId="4.[136,243,1778,1800]" captionTargetBox="[151,1435,190,1754]" captionTargetId="figure-18@4.[151,1435,190,1754]" captionTargetPageId="4" captionText="FIGURES 15–20. Cymbella alexandrovichii sp. nov. SEM, type material, sample no. 01612. Internal valve surface. 15. The whole valve, note that the interstriae wider than striae (white arrows). 16–17. Details of the central areae, note the closed terminal nodule (16–17, black arrows); interstriae wider than striae (16, white arrows); rounded or elongated stigmata openings, surrounded by fine ingrowths from their perimeter (16–17, white arrowheads). 18. Internal structure of striae, note the Voigt discontinuity (18, white arrow). Alveolate striae are located in depressions between interstriae (virgae) (18, black arrows) and occlusions are absent. 19–20. Details of the apices, note the APFs (19–20, black arrows); helictoglossa (19–20, black arrowheads); the interstriae that are narrower than striae (19–20, white arrows). Scale bars = 5 µm (Fig. 15), 2 µm (Fig. 16), 1 µm (Figs 17–20)." figureDoi="http://doi.org/10.5281/zenodo.10376862" httpUri="https://zenodo.org/record/10376862/files/figure.png" pageId="2" pageNumber="114">Fig. 18</figureCitation>
|
||
, black arrows). Voigt discontinuities are present (
|
||
<figureCitation id="BF8BDACEC2349122FCC5F844EDE176DE" box="[861,944,1956,1982]" captionStart="FIGURES 15–20" captionStartId="4.[136,243,1778,1800]" captionTargetBox="[151,1435,190,1754]" captionTargetId="figure-18@4.[151,1435,190,1754]" captionTargetPageId="4" captionText="FIGURES 15–20. Cymbella alexandrovichii sp. nov. SEM, type material, sample no. 01612. Internal valve surface. 15. The whole valve, note that the interstriae wider than striae (white arrows). 16–17. Details of the central areae, note the closed terminal nodule (16–17, black arrows); interstriae wider than striae (16, white arrows); rounded or elongated stigmata openings, surrounded by fine ingrowths from their perimeter (16–17, white arrowheads). 18. Internal structure of striae, note the Voigt discontinuity (18, white arrow). Alveolate striae are located in depressions between interstriae (virgae) (18, black arrows) and occlusions are absent. 19–20. Details of the apices, note the APFs (19–20, black arrows); helictoglossa (19–20, black arrowheads); the interstriae that are narrower than striae (19–20, white arrows). Scale bars = 5 µm (Fig. 15), 2 µm (Fig. 16), 1 µm (Figs 17–20)." figureDoi="http://doi.org/10.5281/zenodo.10376862" httpUri="https://zenodo.org/record/10376862/files/figure.png" pageId="2" pageNumber="114">Fig. 18</figureCitation>
|
||
, white arrow). Interstriae wider than striae in the central part of the valves (
|
||
<figureCitation id="BF8BDACEC2349122FE48F828EC017683" box="[464,592,1992,2019]" captionStart="FIGURES 15–20" captionStartId="4.[136,243,1778,1800]" captionTargetBox="[151,1435,190,1754]" captionTargetId="figure-18@4.[151,1435,190,1754]" captionTargetPageId="4" captionText="FIGURES 15–20. Cymbella alexandrovichii sp. nov. SEM, type material, sample no. 01612. Internal valve surface. 15. The whole valve, note that the interstriae wider than striae (white arrows). 16–17. Details of the central areae, note the closed terminal nodule (16–17, black arrows); interstriae wider than striae (16, white arrows); rounded or elongated stigmata openings, surrounded by fine ingrowths from their perimeter (16–17, white arrowheads). 18. Internal structure of striae, note the Voigt discontinuity (18, white arrow). Alveolate striae are located in depressions between interstriae (virgae) (18, black arrows) and occlusions are absent. 19–20. Details of the apices, note the APFs (19–20, black arrows); helictoglossa (19–20, black arrowheads); the interstriae that are narrower than striae (19–20, white arrows). Scale bars = 5 µm (Fig. 15), 2 µm (Fig. 16), 1 µm (Figs 17–20)." figureDoi="http://doi.org/10.5281/zenodo.10376862" httpUri="https://zenodo.org/record/10376862/files/figure.png" pageId="2" pageNumber="114">Figs 15–16</figureCitation>
|
||
, white arrows), becoming noticeably narrower than striae near the valve ends (
|
||
<figureCitation id="BF8BDACEC2349122FF08F80CEEB07966" box="[144,225,2028,2054]" captionStart="FIGURES 15–20" captionStartId="4.[136,243,1778,1800]" captionTargetBox="[151,1435,190,1754]" captionTargetId="figure-18@4.[151,1435,190,1754]" captionTargetPageId="4" captionText="FIGURES 15–20. Cymbella alexandrovichii sp. nov. SEM, type material, sample no. 01612. Internal valve surface. 15. The whole valve, note that the interstriae wider than striae (white arrows). 16–17. Details of the central areae, note the closed terminal nodule (16–17, black arrows); interstriae wider than striae (16, white arrows); rounded or elongated stigmata openings, surrounded by fine ingrowths from their perimeter (16–17, white arrowheads). 18. Internal structure of striae, note the Voigt discontinuity (18, white arrow). Alveolate striae are located in depressions between interstriae (virgae) (18, black arrows) and occlusions are absent. 19–20. Details of the apices, note the APFs (19–20, black arrows); helictoglossa (19–20, black arrowheads); the interstriae that are narrower than striae (19–20, white arrows). Scale bars = 5 µm (Fig. 15), 2 µm (Fig. 16), 1 µm (Figs 17–20)." figureDoi="http://doi.org/10.5281/zenodo.10376862" httpUri="https://zenodo.org/record/10376862/files/figure.png" pageId="2" pageNumber="114">Fig. 19</figureCitation>
|
||
, white arrows). The stigmata openings rounded or elongated, surrounded by fine ingrowths from their perimeter (
|
||
<figureCitation id="BF8BDACEC2349122FF08F7F0EF40794A" box="[144,273,2064,2090]" captionStart="FIGURES 15–20" captionStartId="4.[136,243,1778,1800]" captionTargetBox="[151,1435,190,1754]" captionTargetId="figure-18@4.[151,1435,190,1754]" captionTargetPageId="4" captionText="FIGURES 15–20. Cymbella alexandrovichii sp. nov. SEM, type material, sample no. 01612. Internal valve surface. 15. The whole valve, note that the interstriae wider than striae (white arrows). 16–17. Details of the central areae, note the closed terminal nodule (16–17, black arrows); interstriae wider than striae (16, white arrows); rounded or elongated stigmata openings, surrounded by fine ingrowths from their perimeter (16–17, white arrowheads). 18. Internal structure of striae, note the Voigt discontinuity (18, white arrow). Alveolate striae are located in depressions between interstriae (virgae) (18, black arrows) and occlusions are absent. 19–20. Details of the apices, note the APFs (19–20, black arrows); helictoglossa (19–20, black arrowheads); the interstriae that are narrower than striae (19–20, white arrows). Scale bars = 5 µm (Fig. 15), 2 µm (Fig. 16), 1 µm (Figs 17–20)." figureDoi="http://doi.org/10.5281/zenodo.10376862" httpUri="https://zenodo.org/record/10376862/files/figure.png" pageId="2" pageNumber="114">Figs 16–17</figureCitation>
|
||
, white arrowheads
|
||
<emphasis id="15C41A59C2349122FE7BF7EFEFBD7949" bold="true" box="[483,492,2063,2089]" pageId="2" pageNumber="114">)</emphasis>
|
||
. The openings of the apical pore fields are closed (
|
||
<figureCitation id="BF8BDACEC2349122FBBFF7F0EAF8794A" box="[1063,1193,2064,2090]" captionStart="FIGURES 15–20" captionStartId="4.[136,243,1778,1800]" captionTargetBox="[151,1435,190,1754]" captionTargetId="figure-18@4.[151,1435,190,1754]" captionTargetPageId="4" captionText="FIGURES 15–20. Cymbella alexandrovichii sp. nov. SEM, type material, sample no. 01612. Internal valve surface. 15. The whole valve, note that the interstriae wider than striae (white arrows). 16–17. Details of the central areae, note the closed terminal nodule (16–17, black arrows); interstriae wider than striae (16, white arrows); rounded or elongated stigmata openings, surrounded by fine ingrowths from their perimeter (16–17, white arrowheads). 18. Internal structure of striae, note the Voigt discontinuity (18, white arrow). Alveolate striae are located in depressions between interstriae (virgae) (18, black arrows) and occlusions are absent. 19–20. Details of the apices, note the APFs (19–20, black arrows); helictoglossa (19–20, black arrowheads); the interstriae that are narrower than striae (19–20, white arrows). Scale bars = 5 µm (Fig. 15), 2 µm (Fig. 16), 1 µm (Figs 17–20)." figureDoi="http://doi.org/10.5281/zenodo.10376862" httpUri="https://zenodo.org/record/10376862/files/figure.png" pageId="2" pageNumber="114">Figs 19–20</figureCitation>
|
||
, black arrows).
|
||
</paragraph>
|
||
</subSubSection>
|
||
<caption id="73CF96C3C2359123FF10F967EC2B7614" ID-DOI="http://doi.org/10.5281/zenodo.10376860" ID-Zenodo-Dep="10376860" httpUri="https://zenodo.org/record/10376860/files/figure.png" pageId="3" pageNumber="115" startId="3.[136,243,1671,1693]" targetBox="[151,1435,190,1647]" targetPageId="3" targetType="figure">
|
||
<paragraph id="270FC64BC2359123FF10F967EC2B7614" blockId="3.[136,1452,1671,1909]" pageId="3" pageNumber="115">
|
||
<emphasis id="15C41A59C2359123FF10F967EF7E77FC" bold="true" box="[136,303,1671,1693]" pageId="3" pageNumber="115">FIGURES 9–14.</emphasis>
|
||
<emphasis id="15C41A59C2359123FEAEF967ECD177FD" box="[310,640,1671,1693]" italics="true" pageId="3" pageNumber="115">
|
||
<taxonomicName id="E0B0BDC8C2359123FEAEF967EC7E77FC" authority="Glushchenko & Mironov & Kuznetsova & Kulikovskiy, 2023" authorityName="Glushchenko & Mironov & Kuznetsova & Kulikovskiy" authorityYear="2023" box="[310,559,1671,1692]" class="Bacillariophyceae" family="Cymbellaceae" genus="Cymbella" higherTaxonomySource="GBIF" kingdom="Chromista" order="Cymbellales" pageId="3" pageNumber="115" phylum="Ochrophyta" rank="species" species="alexandrovichii" status="sp. nov.">Cymbella alexandrovichii</taxonomicName>
|
||
<taxonomicNameLabel id="0EF7A722C2359123FDADF968ECD177FD" box="[565,640,1672,1693]" pageId="3" pageNumber="115" rank="species">sp. nov.</taxonomicNameLabel>
|
||
</emphasis>
|
||
SEM, type material, sample no. 01612. External valve surface. 9. The whole valve, note the slightly widened central branches of the raphe (white arrowheads); terminal raphe fissure (black arrowhead); Voigt discontinuities (black arrow). 10–12. Details of the central area, note the slightly widened central branches of the raphe (10, white arrowheads); biseriate (10, black arrowheads) and uniseriate striae (11, white arrowheads) with single slit-like (12, white arrows) or round (11–12, white arrowheads) areolae; ventral stigmata (10–11, black arrows). 13–14. Details of the apices, note the terminal raphe fissure (13, black arrowhead); biseriate striae on the valve mantle (13–14, black arrows); apical pore field (13–14, white arrowhead). Scale bars = 10 µm (Fig. 9), 2 µm (Figs 10, 12), 1 µm (Figs 11, 13–14).
|
||
</paragraph>
|
||
</caption>
|
||
<caption id="73CF96C3C2329124FF10F912ECBE7680" ID-DOI="http://doi.org/10.5281/zenodo.10376862" ID-Zenodo-Dep="10376862" httpUri="https://zenodo.org/record/10376862/files/figure.png" pageId="4" pageNumber="116" startId="4.[136,243,1778,1800]" targetBox="[151,1435,190,1754]" targetPageId="4" targetType="figure">
|
||
<paragraph id="270FC64BC2329124FF10F912ECBE7680" blockId="4.[136,1452,1778,2017]" pageId="4" pageNumber="116">
|
||
<emphasis id="15C41A59C2329124FF10F912EF6B7667" bold="true" box="[136,314,1778,1800]" pageId="4" pageNumber="116">FIGURES 15–20.</emphasis>
|
||
<emphasis id="15C41A59C2329124FED8F913ECD67668" box="[320,647,1779,1800]" italics="true" pageId="4" pageNumber="116">
|
||
<taxonomicName id="E0B0BDC8C2329124FED8F913EC697668" authority="Glushchenko & Mironov & Kuznetsova & Kulikovskiy, 2023" authorityName="Glushchenko & Mironov & Kuznetsova & Kulikovskiy" authorityYear="2023" box="[320,568,1779,1800]" class="Bacillariophyceae" family="Cymbellaceae" genus="Cymbella" higherTaxonomySource="GBIF" kingdom="Chromista" order="Cymbellales" pageId="4" pageNumber="116" phylum="Ochrophyta" rank="species" species="alexandrovichii" status="sp. nov.">Cymbella alexandrovichii</taxonomicName>
|
||
<taxonomicNameLabel id="0EF7A722C2329124FDA6F913ECD67668" box="[574,647,1779,1800]" pageId="4" pageNumber="116" rank="species">sp. nov.</taxonomicNameLabel>
|
||
</emphasis>
|
||
SEM, type material, sample no. 01612. Internal valve surface. 15. The whole valve, note that the interstriae wider than striae (white arrows). 16–17. Details of the central areae, note the closed terminal nodule (16–17, black arrows); interstriae wider than striae (16, white arrows); rounded or elongated stigmata openings, surrounded by fine ingrowths from their perimeter (16–17, white arrowheads). 18. Internal structure of striae, note the Voigt discontinuity (18, white arrow). Alveolate striae are located in depressions between interstriae (virgae) (18, black arrows) and occlusions are absent. 19–20. Details of the apices, note the APFs (19–20, black arrows); helictoglossa (19–20, black arrowheads); the interstriae that are narrower than striae (19–20, white arrows). Scale bars = 5 µm (Fig. 15), 2 µm (Fig. 16), 1 µm (Figs 17–20).
|
||
</paragraph>
|
||
</caption>
|
||
<subSubSection id="6FAA95C0C2339125FF25FF7EEEA17028" pageId="5" pageNumber="117" type="materials_examined">
|
||
<paragraph id="270FC64BC2339125FF25FF7EEAB67060" blockId="5.[136,1452,158,508]" pageId="5" pageNumber="117">
|
||
<materialsCitation id="97D8CC16C2339125FF25FF7EEAB27060" collectingDate="2011-02-11" collectionCode="N" collectorName="E. L. Konstantinov" country="Laos" latitude="17.896383" location="Nam Hinboun River" longLatPrecision="1" longitude="104.761116" municipality="Nam Hinboun River" pageId="5" pageNumber="117" specimenCode="01612" specimenCount="1" stateProvince="Vientiane Province" typeStatus="holotype">
|
||
<emphasis id="15C41A59C2339125FF25FF7EEF4F71D8" bold="true" box="[189,286,158,184]" pageId="5" pageNumber="117">Type:—</emphasis>
|
||
<collectingCountry id="5FA786DBC2339125FE85FF7EEF0771D8" box="[285,342,158,184]" name="Laos" pageId="5" pageNumber="117" value="Laos">Laos</collectingCountry>
|
||
,
|
||
<collectingRegion id="E57408A9C2339125FEFCFF7EEC6E71D8" box="[356,575,158,184]" country="Laos" name="Viangchan" pageId="5" pageNumber="117">Vientiane Province</collectingRegion>
|
||
,
|
||
<collectingMunicipality id="C76B5C31C2339125FDD5FF7EED6671D8" box="[589,823,158,184]" pageId="5" pageNumber="117">Nam Hinboun River</collectingMunicipality>
|
||
(
|
||
<geoCoordinate id="4284A08CC2339125FCD1FF7EED8F71D9" box="[841,990,158,185]" degrees="17" direction="north" minutes="53.783" orientation="latitude" pageId="5" pageNumber="117" precision="1" value="17.896383">17°53.783’N</geoCoordinate>
|
||
,
|
||
<geoCoordinate id="4284A08CC2339125FC74FF7EEADC71D9" box="[1004,1165,158,185]" degrees="104" direction="east" minutes="45.667" orientation="longitude" pageId="5" pageNumber="117" precision="1" value="104.761116">104°45.667’E</geoCoordinate>
|
||
),
|
||
<emphasis id="15C41A59C2339125FB3BFF7EEA9D71D8" box="[1187,1228,158,184]" italics="true" pageId="5" pageNumber="117">leg.</emphasis>
|
||
<collectorName id="8A45A39DC2339125FB4DFF7EEBF671D8" box="[1237,1447,158,184]" pageId="5" pageNumber="117">E.L. Konstantinov</collectorName>
|
||
, coll. date
|
||
<date id="530EE08BC2339125FF6EFF22EF2471BC" box="[246,373,194,220]" pageId="5" pageNumber="117" value="2011-02-11">
|
||
<collectingDate id="434A1963C2339125FF6EFF22EF2471BC" box="[246,373,194,220]" pageId="5" pageNumber="117" value="2011-02-11">02.11.2011</collectingDate>
|
||
</date>
|
||
. Slide no.
|
||
<specimenCode id="77166E30C2339125FE72FF22EC6271BC" box="[490,563,194,220]" pageId="5" pageNumber="117">01612</specimenCode>
|
||
,
|
||
<typeStatus id="F80B78E9C2339125FDA6FF22ECF171BC" box="[574,672,194,220]" pageId="5" pageNumber="117" type="holotype">holotype</typeStatus>
|
||
specimen illustrated in
|
||
<figureCitation id="BF8BDACEC2339125FC34FF22EDBC71BC" box="[940,1005,194,220]" captionStart="FIGURES 1–8" captionStartId="2.[136,248,1707,1729]" captionTargetBox="[151,1435,187,1680]" captionTargetId="figure-18@2.[151,1435,187,1680]" captionTargetPageId="2" captionText="FIGURES 1–8. Cymbella alexandrovichii sp. nov. LM, DIC, type material, slide no. 01612. Fig. 2 represents the holotype. 1–6. Size diminution series. 7. Details of the central area. 8. Details of the valve end. Scale bars = 10 μm (Figs 1–6), 2 μm (Figs 7–8)." figureDoi="http://doi.org/10.5281/zenodo.10376858" httpUri="https://zenodo.org/record/10376858/files/figure.png" pageId="5" pageNumber="117">Fig. 2</figureCitation>
|
||
(in collection of Maxim Kulikovskiy at the Herbarium of the Institute of Plant Physiology Russian Academy of Sciences, Moscow, Russia)
|
||
</materialsCitation>
|
||
.
|
||
</paragraph>
|
||
<paragraph id="270FC64BC2339125FF25FEEAEEA17028" blockId="5.[136,1452,158,508]" pageId="5" pageNumber="117">
|
||
<materialsCitation id="97D8CC16C2339125FF25FEEAEEBD7028" collectionCode="NUOL" country="Laos" pageId="5" pageNumber="117" specimenCode="01612a" specimenCount="1" typeStatus="isotype">
|
||
<emphasis id="15C41A59C2339125FF25FEEAEF4F7044" bold="true" box="[189,286,266,292]" pageId="5" pageNumber="117">
|
||
<typeStatus id="F80B78E9C2339125FF25FEEAEF497044" box="[189,280,266,292]" pageId="5" pageNumber="117" type="isotype">Isotype</typeStatus>
|
||
:
|
||
</emphasis>
|
||
Slide no.
|
||
<specimenCode id="77166E30C2339125FE17FEEAEFB57044" box="[399,484,266,292]" pageId="5" pageNumber="117">01612а</specimenCode>
|
||
, deposited in herbarium of Faculty of Forestry National University of Laos, Vietntiane (
|
||
<collectionCode id="41A15E8EC2339125FF08FECEEEB57028" box="[144,228,302,328]" collectionName="NUOL" pageId="5" pageNumber="117">NUOL</collectionCode>
|
||
)
|
||
</materialsCitation>
|
||
.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="6FAA95C0C2339125FF25FEB2EE8070F0" pageId="5" pageNumber="117" type="etymology">
|
||
<paragraph id="270FC64BC2339125FF25FEB2EE8070F0" blockId="5.[136,1452,158,508]" pageId="5" pageNumber="117">
|
||
<emphasis id="15C41A59C2339125FF25FEB2EF35700C" bold="true" box="[189,356,338,364]" pageId="5" pageNumber="117">Etymology:—</emphasis>
|
||
The specific name is given in honor of chamber singer Mikhail Davidovich Alexandrovich (1914– 2002).
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="6FAA95C0C2339125FF25FE79ED1770D4" box="[189,838,409,436]" pageId="5" pageNumber="117" type="distribution">
|
||
<paragraph id="270FC64BC2339125FF25FE79ED1770D4" blockId="5.[136,1452,158,508]" box="[189,838,409,436]" pageId="5" pageNumber="117">
|
||
<emphasis id="15C41A59C2339125FF25FE79EF1E70D3" bold="true" box="[189,335,409,435]" pageId="5" pageNumber="117">Distribution</emphasis>
|
||
:
|
||
<emphasis id="15C41A59C2339125FECFFE7AEF2270D4" bold="true" box="[343,371,410,436]" pageId="5" pageNumber="117">—</emphasis>
|
||
As yet known only from the
|
||
<typeStatus id="F80B78E9C2339125FD2DFE7AECB470D4" box="[693,741,410,436]" pageId="5" pageNumber="117">type</typeStatus>
|
||
locality.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="6FAA95C0C2339125FF25FE5EED35709C" pageId="5" pageNumber="117" type="biology_ecology">
|
||
<paragraph id="270FC64BC2339125FF25FE5EED35709C" blockId="5.[136,1452,158,508]" pageId="5" pageNumber="117">
|
||
<emphasis id="15C41A59C2339125FF25FE5EEF1070B8" bold="true" box="[189,321,446,472]" pageId="5" pageNumber="117">Ecology:—</emphasis>
|
||
<emphasis id="15C41A59C2339125FEDAFE5EECEE70B8" box="[322,703,446,472]" italics="true" pageId="5" pageNumber="117">
|
||
<taxonomicName id="E0B0BDC8C2339125FEDAFE5EEC3270B8" authority="Glushchenko & Mironov & Kuznetsova & Kulikovskiy, 2023" authorityName="Glushchenko & Mironov & Kuznetsova & Kulikovskiy" authorityYear="2023" box="[322,611,446,472]" class="Bacillariophyceae" family="Cymbellaceae" genus="Cymbella" higherTaxonomySource="GBIF" kingdom="Chromista" order="Cymbellales" pageId="5" pageNumber="117" phylum="Ochrophyta" rank="species" species="alexandrovichii" status="sp. nov.">Cymbella alexandrovichii</taxonomicName>
|
||
<taxonomicNameLabel id="0EF7A722C2339125FDF2FE5FECEE70B8" box="[618,703,447,472]" pageId="5" pageNumber="117" rank="species">sp. nov.</taxonomicNameLabel>
|
||
</emphasis>
|
||
was found in a periphyton from river of slightly alkaline pH (7.7), temperature—20 °C and low electrical conductivity (111 μS/cm).
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |