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165 lines
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<document ID-DOI="http://dx.doi.org/10.3897/phytokeys.178.64426" ID-GBIF-Dataset="ced1fcd1-d652-41c3-a450-48ed783684eb" ID-PMC="PMC8159919" ID-Pensoft-Pub="1314-2003-178-31" ID-Pensoft-UUID="286CBEFF513C55E1B66F6224758AC2F6" ID-PubMed="34084067" ModsDocID="1314-2003-178-31" checkinTime="1621541777160" checkinUser="pensoft" docAuthor="Bilous, Olena P., Genkal, Sergey I., Zimmermann, Jonas, Kusber, Wolf-Henning & Jahn, Regine" docDate="2021" docId="F7849DE942DC53DAABB276945D6B1C0C" docLanguage="en" docName="PhytoKeys 178: 31-69" docOrigin="PhytoKeys 178" docPubDate="2021-05-20" docSource="http://dx.doi.org/10.3897/phytokeys.178.64426" docTitle="Stephanodiscus makarovae Genkal in Nov. Syst. Nizsh. Rast. 15: 13, pl. 2, fig. 1. 1978." docType="treatment" docVersion="5" id="286CBEFF513C55E1B66F6224758AC2F6" lastPageNumber="31" masterDocId="286CBEFF513C55E1B66F6224758AC2F6" masterDocTitle="Centric diatom diversity in the lower part of the Southern Bug river (Ukraine): the transitional zone at Mykolaiv city" masterLastPageNumber="69" masterPageNumber="31" pageNumber="31" updateTime="1668140350575" updateUser="ExternalLinkService">
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<mods:mods xmlns:mods="http://www.loc.gov/mods/v3">
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<mods:titleInfo>
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<mods:title>Centric diatom diversity in the lower part of the Southern Bug river (Ukraine): the transitional zone at Mykolaiv city</mods:title>
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</mods:titleInfo>
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<mods:name type="personal">
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Bilous, Olena P.</mods:namePart>
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<mods:nameIdentifier type="ORCID">https://orcid.org/0000-0001-5229-3667</mods:nameIdentifier>
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<mods:affiliation>Institute of Hydrobiology, NAS of Ukraine, 12 Geroyiv Stalingrada Ave., Kiyv 04210, Ukraine</mods:affiliation>
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<mods:nameIdentifier type="email">bilous_olena@ukr.net</mods:nameIdentifier>
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</mods:name>
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<mods:name type="personal">
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Genkal, Sergey I.</mods:namePart>
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<mods:affiliation>I. D. Papanin Institute for Biology of Inland Waters of RAS, Settle Borok, Nekouz District, Yaroslavl Region 152742, Russia</mods:affiliation>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Zimmermann, Jonas</mods:namePart>
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<mods:affiliation>Botanischer Garten und Botanisches Museum Berlin, Freie Universitaet Berlin, Koenigin-Luise Str. 6 - 8, Berlin 14195, Germany</mods:affiliation>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Kusber, Wolf-Henning</mods:namePart>
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<mods:affiliation>Botanischer Garten und Botanisches Museum Berlin, Freie Universitaet Berlin, Koenigin-Luise Str. 6 - 8, Berlin 14195, Germany</mods:affiliation>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Jahn, Regine</mods:namePart>
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<mods:affiliation>Botanischer Garten und Botanisches Museum Berlin, Freie Universitaet Berlin, Koenigin-Luise Str. 6 - 8, Berlin 14195, Germany</mods:affiliation>
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</mods:name>
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<mods:typeOfResource>text</mods:typeOfResource>
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<mods:titleInfo>
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<mods:title>PhytoKeys</mods:title>
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</mods:titleInfo>
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<mods:part>
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<mods:date>2021</mods:date>
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<mods:detail type="pubDate">
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<mods:number>2021-05-20</mods:number>
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</mods:detail>
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<mods:detail type="volume">
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<mods:number>178</mods:number>
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</mods:detail>
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<mods:extent unit="page">
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<mods:start>31</mods:start>
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<mods:end>69</mods:end>
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</mods:extent>
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</mods:relatedItem>
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<mods:location>
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<mods:url>http://dx.doi.org/10.3897/phytokeys.178.64426</mods:url>
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</mods:location>
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<mods:classification>journal article</mods:classification>
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<mods:identifier type="DOI">http://dx.doi.org/10.3897/phytokeys.178.64426</mods:identifier>
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<mods:identifier type="Pensoft-Pub">1314-2003-178-31</mods:identifier>
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<mods:identifier type="Pensoft-UUID">286CBEFF513C55E1B66F6224758AC2F6</mods:identifier>
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</mods:mods>
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<treatment ID-GBIF-Taxon="182248247" LSID="urn:lsid:plazi:treatment:F7849DE942DC53DAABB276945D6B1C0C" httpUri="http://treatment.plazi.org/id/F7849DE942DC53DAABB276945D6B1C0C" lastPageNumber="31" pageId="0" pageNumber="31">
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<subSubSection pageId="0" pageNumber="31" type="nomenclature">
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<paragraph pageId="0" pageNumber="31">
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<taxonomicName LSID="F7849DE9-42DC-53DA-ABB2-76945D6B1C0C" authority="Genkal in Nov. Syst. Nizsh. Rast. 15: 13, pl. 2, fig. 1. 1978." authorityName="Genkal in Nov. Syst. Nizsh. Rast. 15: 13, pl. 2, fig. 1. 1978." class="Coscinodiscophyceae" family="Stephanodiscaceae" genus="Stephanodiscus" higherTaxonomySource="GBIF" kingdom="Plantae" lsidName="Stephanodiscus makarovae" order="Thalassiosirales" pageId="0" pageNumber="31" phylum="Bacillariophyta" rank="species" species="makarovae">Stephanodiscus makarovae Genkal in Nov. Syst. Nizsh. Rast. 15: 13, pl. 2, fig. 1. 1978.</taxonomicName>
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="31" type="description">
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<paragraph pageId="0" pageNumber="31">Morphological description.</paragraph>
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<paragraph pageId="0" pageNumber="31">
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Frustule disciform, valve with slightly convex or concave centre, frequently flat, diameter 5.9-8.3
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<normalizedToken originalValue="μm">μm</normalizedToken>
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, striae are double, rarely triple, in numbers of 14-16 in 10
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<normalizedToken originalValue="μm">μm</normalizedToken>
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. One central process is present. Spines pointy, small-scale, growing from each costa (Fig.
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<figureCitation captionStart="Figure 5" captionStartId="F5" captionText="Figure 5. SEM images of species found in the transitional zone at Mykolaiv city (A, B, E-H valve views, C, D girdle views): A Minidiscus proschkinae with arrows showing rimoportula and marginal fultoportula B-D Skeletonema subsalsum with arrows showing marginal fultoportulae E Stephanodiscus hantzschii with arrow shown spines F Stephanodiscus makarovae with arrows showing marginal and central fultoportulae G, H Stephanodiscus minutulus with arrows showing spines and central fultoportula. Scale bars: 3 μm (A); 4 μm (B, F, H); 5 μm (C, D, G); 10 μm (E)." figureDoi="10.3897/phytokeys.178.64426.figure5" httpUri="https://binary.pensoft.net/fig/545737" pageId="0" pageNumber="31">5F</figureCitation>
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).
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="31" type="ecology">
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<paragraph pageId="0" pageNumber="31">Ecology.</paragraph>
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<paragraph pageId="0" pageNumber="31">
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Planktonic in rivers, lakes and reservoirs, freshwater, but mainly in mesotrophic-eutrophic water bodies. In addition, reported occurrence of this species in high numbers in highly mineralized waters (
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<bibRefCitation author="Genkal, SI" journalOrPublisher="Botanical Journal" pageId="0" pageNumber="31" pagination="241 - 248" refId="B37" refString="Genkal, SI, 2007. Morphology, taxonomy, ecology and distribution of small-sized species of the genus Stephanodiscus (Bacillariophyta). 2. Stephanodiscus makarovae. Botanical Journal 92 (2): 241 - 248" title="Morphology, taxonomy, ecology and distribution of small-sized species of the genus Stephanodiscus (Bacillariophyta). 2. Stephanodiscus makarovae." volume="92" year="2007">Genkal 2007</bibRefCitation>
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;
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<bibRefCitation DOI="https://doi.org/10.1615/HydrobJ.v45.i6.40" author="Genkal, SI" journalOrPublisher="Hydrobiological Journal" pageId="0" pageNumber="31" pagination="51 - 69" refId="B43" refString="Genkal, SI, Terenko, LM, Nesterova, DA, 2009. New data on flora of centric diatoms (Centrophyceae) of the Danube area of the Black Sea. Hydrobiological Journal 45 (4): 51 - 69, DOI: https://doi.org/10.1615/HydrobJ.v45.i6.40" title="New data on flora of centric diatoms (Centrophyceae) of the Danube area of the Black Sea." url="https://doi.org/10.1615/HydrobJ.v45.i6.40" volume="45" year="2009">Genkal et al. 2009</bibRefCitation>
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;
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<bibRefCitation author="Tsarenko, PM" journalOrPublisher="Gantner Verlag, Ruggell" pageId="0" pageNumber="31" refId="B127" refString="Tsarenko, PM, Wasser, SP, Nevo, E, 2009. Algae of Ukraine: diversity, nomenclature, taxonomy, ecology and geography. Vol. 2. Bacillariophyta. A.R.A. Gantner Verlag, Ruggell" title="Algae of Ukraine: diversity, nomenclature, taxonomy, ecology and geography. Vol. 2. Bacillariophyta. A. R. A." year="2009">Tsarenko et al. 2009</bibRefCitation>
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).
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="31" type="distribution">
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<paragraph pageId="0" pageNumber="31">Distribution.</paragraph>
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<paragraph pageId="0" pageNumber="31">
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<taxonomicName class="Coscinodiscophyceae" family="Stephanodiscaceae" genus="Stephanodiscus" higherTaxonomySource="GBIF" kingdom="Plantae" lsidName="Stephanodiscus makarovae" order="Thalassiosirales" pageId="0" pageNumber="31" phylum="Bacillariophyta" rank="species" species="makarovae">
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<emphasis italics="true" pageId="0" pageNumber="31">Stephanodiscus makarovae</emphasis>
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</taxonomicName>
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was observed downstream from Mykolaiv city in the Southern Bug River (Table
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<tableCitation captionStart="Table 1" captionStartId="T1" captionText="Table 1. Species composition of centric diatoms at the investigated sites near Mykolaiv city in the Southern Bug River in the year 2017 (2013 added for station 2)." httpUri="http://table.plazi.org/id/DD3AC92F3D14B9FD95B22148C16CA677" pageId="0" pageNumber="31" tableUuid="DD3AC92F3D14B9FD95B22148C16CA677">1</tableCitation>
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). It was observed in the Dnipro River and its reservoirs, the Danube River and in the coastal area of the Black Sea (
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<bibRefCitation DOI="https://doi.org/10.1615/HydrobJ.v45.i6.40" author="Genkal, SI" journalOrPublisher="Hydrobiological Journal" pageId="0" pageNumber="31" pagination="51 - 69" refId="B43" refString="Genkal, SI, Terenko, LM, Nesterova, DA, 2009. New data on flora of centric diatoms (Centrophyceae) of the Danube area of the Black Sea. Hydrobiological Journal 45 (4): 51 - 69, DOI: https://doi.org/10.1615/HydrobJ.v45.i6.40" title="New data on flora of centric diatoms (Centrophyceae) of the Danube area of the Black Sea." url="https://doi.org/10.1615/HydrobJ.v45.i6.40" volume="45" year="2009">Genkal et al. 2009</bibRefCitation>
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;
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<bibRefCitation author="Tsarenko, PM" journalOrPublisher="Gantner Verlag, Ruggell" pageId="0" pageNumber="31" refId="B127" refString="Tsarenko, PM, Wasser, SP, Nevo, E, 2009. Algae of Ukraine: diversity, nomenclature, taxonomy, ecology and geography. Vol. 2. Bacillariophyta. A.R.A. Gantner Verlag, Ruggell" title="Algae of Ukraine: diversity, nomenclature, taxonomy, ecology and geography. Vol. 2. Bacillariophyta. A. R. A." year="2009">Tsarenko et al. 2009</bibRefCitation>
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;
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<bibRefCitation DOI="https://doi.org/10.1615/HydrobJ.v50.i4.40" author="Genkal, SI" journalOrPublisher="Hydrobiological Journal" pageId="0" pageNumber="31" pagination="38 - 49" refId="B42" refString="Genkal, SI, Terenko, LM, 2014. New data on flora of centric diatoms (Centrophyceae) of the Black Sea. Hydrobiological Journal 50 (2): 38 - 49, DOI: https://doi.org/10.1615/HydrobJ.v50.i4.40" title="New data on flora of centric diatoms (Centrophyceae) of the Black Sea." url="https://doi.org/10.1615/HydrobJ.v50.i4.40" volume="50" year="2014">Genkal and Terenko 2014</bibRefCitation>
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).
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</paragraph>
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<paragraph pageId="0" pageNumber="31">
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As for general distribution, this taxon has only a few records around the world - Europe (Russia, Ukraine), Asia (Armenia, Russia), Africa (Egypt) (
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<bibRefCitation author="Kulikovskiy, M" journalOrPublisher="Filigran, Yaroslavl" pageId="0" pageNumber="31" refId="B78" refString="Kulikovskiy, M, Glushchenko, AM, Kuznetsova, IV, Genkal, SI, 2016. [Identification book of diatoms from Russia]. Filigran, Yaroslavl" title="[Identification book of diatoms from Russia]." year="2016">Kulikovskiy et al. 2016</bibRefCitation>
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;
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<bibRefCitation author="Genkal, SI" journalOrPublisher="Filigran, Yaroslavl" pageId="0" pageNumber="31" refId="B45" refString="Genkal, SI, Kulikovskiy, MS, Kuznetsova, IV, 2020. Modern freshwater centric diatom algae in Russia [Sovremennye presnovodnye centricheskie diatomovye vodorosli Rossii]. Filigran, Yaroslavl" title="Modern freshwater centric diatom algae in Russia [Sovremennye presnovodnye centricheskie diatomovye vodorosli Rossii]." year="2020">Genkal et al. 2020</bibRefCitation>
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).
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="31" type="comments">
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<paragraph pageId="0" pageNumber="31">Comments.</paragraph>
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<paragraph pageId="0" pageNumber="31">
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According to
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<bibRefCitation author="Houk, V" editor="Poulickova, A" journalOrPublisher=")" pageId="0" pageNumber="31" pagination="1 - 529" refId="B61" refString="Houk, V, Klee, R, Tanaka, H, 2014. Atlas of freshwater centric diatoms with a brief key and descriptions Part IV., Stephanodiscaceae B: Stephanodicsus, Cyclostephanos, Pliocaenicus, Hemistephanos, Stephanocostis, Mesodictyon & Spicaticribra. In: Poulickova, A, Ed., Fottea 14 (Suppl.): 1 - 529" title="Atlas of freshwater centric diatoms with a brief key and descriptions Part IV., Stephanodiscaceae B: Stephanodicsus, Cyclostephanos, Pliocaenicus, Hemistephanos, Stephanocostis, Mesodictyon & Spicaticribra." volumeTitle="Fottea 14 (Suppl." year="2014">Houk et al. (2014)</bibRefCitation>
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,
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<taxonomicName lsidName="S. makarovae" pageId="0" pageNumber="31" rank="species" species="makarovae">
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<emphasis italics="true" pageId="0" pageNumber="31">S. makarovae</emphasis>
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</taxonomicName>
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(
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<bibRefCitation author="Genkal, SI" journalOrPublisher="Botanical Journal" pageId="0" pageNumber="31" pagination="241 - 248" refId="B37" refString="Genkal, SI, 2007. Morphology, taxonomy, ecology and distribution of small-sized species of the genus Stephanodiscus (Bacillariophyta). 2. Stephanodiscus makarovae. Botanical Journal 92 (2): 241 - 248" title="Morphology, taxonomy, ecology and distribution of small-sized species of the genus Stephanodiscus (Bacillariophyta). 2. Stephanodiscus makarovae." volume="92" year="2007">Genkal 2007</bibRefCitation>
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) was erroneously included in the synonym
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<taxonomicName higherTaxonomySource="GBIF,CoL" kingdom="Chromista" lsidName="C. delicatus" pageId="0" pageNumber="31" phylum="Ochrophyta" rank="species" species="delicatus">
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<emphasis italics="true" pageId="0" pageNumber="31">C. delicatus</emphasis>
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</taxonomicName>
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(Genkal) Casper & Scheffler, since, according to the diagnosis, the marginal fultoportulae of
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<taxonomicName lsidName="S. makarove" pageId="0" pageNumber="31" rank="species" species="makarove">
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<emphasis italics="true" pageId="0" pageNumber="31">S. makarove</emphasis>
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</taxonomicName>
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have 2 satellite pores, and for
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<taxonomicName higherTaxonomySource="GBIF,CoL" kingdom="Chromista" lsidName="C. delicatus" pageId="0" pageNumber="31" phylum="Ochrophyta" rank="species" species="delicatus">
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<emphasis italics="true" pageId="0" pageNumber="31">C. delicatus</emphasis>
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</taxonomicName>
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3. The difference in the number of satellite pores at the marginal fultoportulae in centric diatoms is a good diagnostic feature. For
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<taxonomicName lsidName="S. makarovae" pageId="0" pageNumber="31" rank="species" species="makarovae">
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<emphasis italics="true" pageId="0" pageNumber="31">S. makarovae</emphasis>
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</taxonomicName>
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, the valve relief also varies from flat to slightly convex or concave, and there are also other morphological differences (see same publication
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<bibRefCitation author="Genkal, SI" journalOrPublisher="Botanical Journal" pageId="0" pageNumber="31" pagination="241 - 248" refId="B37" refString="Genkal, SI, 2007. Morphology, taxonomy, ecology and distribution of small-sized species of the genus Stephanodiscus (Bacillariophyta). 2. Stephanodiscus makarovae. Botanical Journal 92 (2): 241 - 248" title="Morphology, taxonomy, ecology and distribution of small-sized species of the genus Stephanodiscus (Bacillariophyta). 2. Stephanodiscus makarovae." volume="92" year="2007">Genkal 2007</bibRefCitation>
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). As for the transfer of
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<taxonomicName lsidName="S. makarovae" pageId="0" pageNumber="31" rank="species" species="makarovae">
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<emphasis italics="true" pageId="0" pageNumber="31">S. makarovae</emphasis>
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</taxonomicName>
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to the genus
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<taxonomicName class="Bacillariophyceae" family="Stephanodiscaceae" genus="Cyclostephanos" higherTaxonomySource="GBIF" kingdom="Plantae" lsidName="Cyclostephanos" order="Thalassiosirales" pageId="0" pageNumber="31" phylum="Ochrophyta" rank="genus">
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<emphasis italics="true" pageId="0" pageNumber="31">Cyclostephanos</emphasis>
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</taxonomicName>
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, this is a debatable issue and molecular genetic studies are needed.
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</paragraph>
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</subSubSection>
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</treatment>
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</document>
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