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147 lines
17 KiB
XML
<document id="7DDD230BAC27DFD142072B4AB573F1C0" ID-DOI="10.11646/phytotaxa.443.1.10" ID-ISSN="1179-3163" ID-Zenodo-Dep="13878387" IM.bibliography_approvedBy="felipe" IM.illustrations_approvedBy="felipe" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" IM.treatments_approvedBy="felipe" checkinTime="1727831144574" checkinUser="felipe" docAuthor="Van Westen, Marien C. & Coesel, Peter F. M." docDate="2020" docId="397C8781FFAFFF94FE9BFA57A9BF3985" docLanguage="en" docName="phytotaxa.443.1.10.pdf" docOrigin="Phytotaxa 443 (1)" docSource="http://dx.doi.org/10.11646/phytotaxa.443.1.10" docStyle="DocumentStyle:96748F8F1B6C902996E134952A3A36B9.13:Phytotaxa.2014-.journal_article" docStyleId="96748F8F1B6C902996E134952A3A36B9" docStyleName="Phytotaxa.2014-.journal_article" docStyleVersion="13" docTitle="Euastrum dubioides Van Westen et Coesel 2020, spec. nov." docType="treatment" docVersion="2" lastPageNumber="108" masterDocId="C545FFF9FFAFFF95FE13FF83AA673830" masterDocTitle="Taxonomic notes on desmids from the Netherlands III, with a description of five new species" masterLastPageNumber="115" masterPageNumber="107" pageNumber="107" updateTime="1727837254391" updateUser="ExternalLinkService" zenodo-license-figures="UNSPECIFIED" zenodo-license-treatments="UNSPECIFIED">
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<mods:titleInfo id="70E5407E192829AAE0AE4D1E28C7A8F4">
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<mods:title id="A26E6341E171CF6EAAD508E79AAA0534">Taxonomic notes on desmids from the Netherlands III, with a description of five new species</mods:title>
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<mods:name id="3C1DA12A00640F56CEA91AE4230A0D75" type="personal">
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<mods:role id="5F346C14ECCE2B32E6355F22F6764F83">
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<mods:roleTerm id="EFC4C60E1EDD36321A62EA940864592A">Author</mods:roleTerm>
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<mods:namePart id="9D6ED443C0A3BCED9264FE37C73586B8">Van Westen, Marien C.</mods:namePart>
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<mods:nameIdentifier id="4E4C485F7A7C81009F3A3B629B70B524" type="ORCID">0000-0001-6905-9471</mods:nameIdentifier>
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<mods:affiliation id="BCE535B83588B4986F2E5B5B447451E4">Podzolhamel 26, 9403 XC Assen, The Netherlands.</mods:affiliation>
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<mods:nameIdentifier id="A22A6B00109777CBE18E23797324ABD0" type="email">mvanwesten@home.nl</mods:nameIdentifier>
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</mods:name>
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<mods:name id="14DA14572E29169A27036E5AD14FB9B9" type="personal">
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<mods:roleTerm id="718EC2C0D20D5AACC920998ECBEB8398">Author</mods:roleTerm>
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<mods:namePart id="AD6E71B11E3244CA65DF41F9CD884512">Coesel, Peter F. M.</mods:namePart>
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<mods:nameIdentifier id="5BA0478E31ABC24D65C0A5757897A971" type="ORCID">0000-0001-7709-4154</mods:nameIdentifier>
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<mods:affiliation id="27B2548D6CC423861EF8DC227D075780">Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, Box 94240, 1090 GE Amsterdam, The Netherlands.</mods:affiliation>
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<mods:nameIdentifier id="2222480474FA73C5554D250C3996CB75" type="email">p.f.m.coesel@uva.nl</mods:nameIdentifier>
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<mods:typeOfResource id="7F7E7BF2993D48A2047242FF16970EF7">text</mods:typeOfResource>
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<mods:title id="F90F788EE3BC6F9ED826DE9346746B22">Phytotaxa</mods:title>
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<mods:part id="863244F85996E8E0E24B04C0B4A0B3F8">
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<mods:date id="BD95BCF65CA7F5EDD445D7BDA77F1573">2020</mods:date>
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<mods:number id="3E52713E09F5240D407D389C5F411D77">2020-05-18</mods:number>
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<mods:number id="7902B115B47B1BF961C0782B0ABC2244">443</mods:number>
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<mods:number id="6087C17965DAFEC6EFB9E09F34FE69D7">1</mods:number>
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<mods:start id="7665AD86FBC3D3BF05201CA70362538E">107</mods:start>
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<mods:url id="04D1D1A4054327A8674FECFE60C20FD7">http://dx.doi.org/10.11646/phytotaxa.443.1.10</mods:url>
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<mods:identifier id="0FA23164233C2EE5886FA0C1FE9ED416" type="DOI">10.11646/phytotaxa.443.1.10</mods:identifier>
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<mods:identifier id="04BDE1AE8DB642691D8C6A44F2AD5407" type="ISSN">1179-3163</mods:identifier>
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<treatment id="397C8781FFAFFF94FE9BFA57A9BF3985" ID-DOI="http://doi.org/10.5281/zenodo.13878379" ID-Zenodo-Dep="13878379" LSID="urn:lsid:plazi:treatment:397C8781FFAFFF94FE9BFA57A9BF3985" httpUri="http://treatment.plazi.org/id/397C8781FFAFFF94FE9BFA57A9BF3985" lastPageId="1" lastPageNumber="108" pageId="0" pageNumber="107">
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<subSubSection id="F9CF651CFFAFFF95FE9BFA57A9D43DDE" box="[136,947,1492,1519]" pageId="0" pageNumber="107" type="nomenclature">
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<paragraph id="B16A3697FFAFFF95FE9BFA57A9D43DDE" blockId="0.[136,947,1492,1519]" box="[136,947,1492,1519]" pageId="0" pageNumber="107">
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<heading id="EA2281FBFFAFFF95FE9BFA57A9D43DDE" box="[136,947,1492,1519]" fontSize="11" level="2" pageId="0" pageNumber="107" reason="3">
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<taxonomicName id="76D54D14FFAFFF95FE9BFA57A80E3DDE" authority="Van Westen et Coesel" authorityName="Van Westen et Coesel" authorityYear="2020" box="[136,617,1492,1519]" class="Conjugatophyceae" family="Desmidiaceae" genus="Euastrum" kingdom="Plantae" order="Zygnematales" pageId="0" pageNumber="107" phylum="Charophyta" rank="species" species="dubioides" status="sp. nov.">
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<emphasis id="83A1EA85FFAFFF95FE9BFA57AB173DDF" bold="true" box="[136,368,1492,1519]" italics="true" pageId="0" pageNumber="107">Euastrum dubioides</emphasis>
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Van Westen et Coesel
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</taxonomicName>
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<emphasis id="83A1EA85FFAFFF95FC63FA56A8B93DDE" box="[624,734,1493,1518]" italics="true" pageId="0" pageNumber="107">
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<taxonomicNameLabel id="989257FEFFAFFF95FC63FA56A8B93DDE" box="[624,734,1493,1518]" pageId="0" pageNumber="107" rank="species">spec. nov.</taxonomicNameLabel>
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</emphasis>
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||
(
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<figureCitation id="29EE2A12FFAFFF95FCFFFA57A9523DDF" box="[748,821,1492,1519]" captionStart="FIGURES 1–6" captionStartId="1.[136,243,2022,2044]" captionTargetBox="[200,1386,486,1964]" captionTargetId="figure-139@1.[170,1416,458,1994]" captionTargetPageId="1" captionText="FIGURES 1–6. Drawings 1. Cosmarium logiensiforme. 2. C. mandosii. 3. C. arcuatiporosum (with zygospore). 4. Euastrum tumoriferum. 5. Eu. dubioides. 6. Eu. neogutwinskii (with zygospore)." figureDoi="http://doi.org/10.5281/zenodo.13878389" httpUri="https://zenodo.org/record/13878389/files/figure.png" pageId="0" pageNumber="107">Figs 5</figureCitation>
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,
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<figureCitation id="29EE2A12FFAFFF95FD52FA57A91C3DDE" box="[833,891,1492,1518]" captionStart="FIGURES 7–15" captionStartId="2.[136,243,1378,1400]" captionTargetBox="[322,1265,190,1353]" captionTargetId="figure-22@2.[322,1265,190,1354]" captionTargetPageId="2" captionText="FIGURES 7–15. LM photographs. 7, 8. Euastrum tumoriferum. 9, 10. Eu. dubioides. 11–15. Eu. neogutwinskii (14, 15 zygospore). Scale bar = 10 µm." figureDoi="http://doi.org/10.5281/zenodo.13878393" httpUri="https://zenodo.org/record/13878393/files/figure.png" pageId="0" pageNumber="107">9, 10</figureCitation>
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,
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<figureCitation id="29EE2A12FFAFFF95FD94FA57A9C13DDE" box="[903,934,1492,1518]" captionStart="FIGURES 26–34" captionStartId="4.[136,243,1953,1975]" captionTargetBox="[210,1377,190,1929]" captionTargetId="figure-22@4.[210,1377,190,1929]" captionTargetPageId="4" captionText="FIGURES 26–34. SEM photographs. 26. Cosmarium mandosii. 27. C. arcuatiporosum. 28. C. logiensiforme. 29. Euastrum tumoriferum. 30 Eu. neogutwinskii. 31.Eu. dubioides. 32. Eu. dubium var. dubium. 33 Eu. dubium var. ornatum. 34. Eu. denticulatum. Scale bar = 10 µm." figureDoi="http://doi.org/10.5281/zenodo.13878399" httpUri="https://zenodo.org/record/13878399/files/figure.png" pageId="0" pageNumber="107">31</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="F9CF651CFFAFFF94FE9BF99FA9BF3985" lastPageId="1" lastPageNumber="108" pageId="0" pageNumber="107" type="diagnosis">
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<paragraph id="B16A3697FFAFFF95FE9BF99FA9C83F03" blockId="0.[136,1452,1564,2059]" pageId="0" pageNumber="107">Diagnosis: Cells 1.4 times longer than broad, with a deep median constriction. Sinus linear, closed for the greater part. Semicells in frontal view composed of a rectangular-trapezoid basal part and a much narrower, rectangular apical part. Apices truncate with a rather deep, narrow, median invagination. Apical angles furnished with a blunt granule. Lateral and basal lobes rounded, the lateral ones furnished with a single, the basal ones with two blunt marginal granules. Marginal granules in radial series with a number of intramarginal ones. Semicells with a slight central inflation furnished with some four granules arranged in a square. Semicells in apical view elliptic, with central inflation. Chloroplast with a single, central pyrenoid. Dimensions: cell length 25–29 µm, cell breadth 17.5–21 µm, breadth of apex 10.5–13 µm, cell thickness 12–13 µm, isthmus 5–7 µm.</paragraph>
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<paragraph id="B16A3697FFAFFF95FEAEF8BEA9663FAE" blockId="0.[136,1452,1564,2059]" pageId="0" pageNumber="107">
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Type:—
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<collectingCountry id="C9C27607FFAFFF95FF0BF8BEA84B3F66" box="[280,556,1852,1879]" name="Netherlands" pageId="0" pageNumber="107">THE NETHERLANDS</collectingCountry>
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.
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<collectingRegion id="7311F875FFAFFF95FC2FF8BFA8FC3F66" box="[572,667,1852,1878]" country="Netherlands" name="Drenthe" pageId="0" pageNumber="107">Drenthe</collectingRegion>
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: wet meadow with
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<taxonomicName id="76D54D14FFAFFF95FD99F8BEAE553F66" box="[906,1074,1852,1878]" class="Liliopsida" family="Juncaceae" genus="Juncus" kingdom="Plantae" order="Poales" pageId="0" pageNumber="107" phylum="Tracheophyta" rank="species" species="effusus">
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<emphasis id="83A1EA85FFAFFF95FD99F8BEAE553F66" box="[906,1074,1852,1878]" italics="true" pageId="0" pageNumber="107">Juncus effusus</emphasis>
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</taxonomicName>
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in estate Eexterveld near Eext,
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<geoCoordinate id="D4E15050FFAFFF95FE9BF8E3AB4E3F4B" box="[136,297,1888,1915]" degrees="53.014058" direction="north" orientation="latitude" pageId="0" pageNumber="107" precision="1" value="53.014057">53.014058° N</geoCoordinate>
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,
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<geoCoordinate id="D4E15050FFAFFF95FF27F8E3ABA43F4B" box="[308,451,1888,1915]" degrees="6.695333" direction="east" orientation="longitude" pageId="0" pageNumber="107" precision="1" value="6.695333">6.695333° E</geoCoordinate>
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, between mosses and filamentous algae. Van Westen,
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<date id="C56B1057FFAFFF95FA31F8E3AED73F4A" box="[1058,1200,1888,1914]" pageId="0" pageNumber="107" value="2011-04-01">1 April 2011</date>
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(
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<typeStatus id="6E6E8835FFAFFF95FAADF8E3AF453F4A" box="[1214,1314,1888,1914]" pageId="0" pageNumber="107" type="holotype">holotype</typeStatus>
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L! Hugo de Vries Lab 2019.01, preserved as a fixed natural sample).
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</paragraph>
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<paragraph id="B16A3697FFAFFF94FEAEF82BA8623930" blockId="0.[136,1452,1564,2059]" lastBlockId="1.[136,1452,158,437]" lastPageId="1" lastPageNumber="108" pageId="0" pageNumber="107">
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<emphasis id="83A1EA85FFAFFF95FEAEF82BABDD3FF2" bold="true" box="[189,442,1960,1986]" pageId="0" pageNumber="107">Differential diagnosis</emphasis>
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:—At first glance, the above-described alga reminds of
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<taxonomicName id="76D54D14FFAFFF95FA09F82AAF553FF2" authority="Nageli" authorityName="Nageli" box="[1050,1330,1960,1986]" class="Conjugatophyceae" family="Desmidiaceae" genus="Euastrum" kingdom="Plantae" order="Zygnematales" pageId="0" pageNumber="107" phylum="Charophyta" rank="species" species="dubium">
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<emphasis id="83A1EA85FFAFFF95FA09F82AAE873FF2" box="[1050,1248,1960,1986]" italics="true" pageId="0" pageNumber="107">Euastrum dubium</emphasis>
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Nägeli
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</taxonomicName>
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, especially its
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<taxonomicName id="76D54D14FFAFFF95FEBFF84EA8343FD7" authority="Woloszynska. However" authorityName="Woloszynska. However" box="[172,595,1996,2023]" class="Conjugatophyceae" family="Desmidiaceae" genus="Euastrum" kingdom="Plantae" order="Zygnematales" pageId="0" pageNumber="107" phylum="Charophyta" rank="variety" species="dubium" variety="ornatum">
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var.
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<emphasis id="83A1EA85FFAFFF95FECDF84EAB5A3FD6" box="[222,317,1997,2022]" italics="true" pageId="0" pageNumber="107">ornatum</emphasis>
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Woloszynska. However
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</taxonomicName>
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, where semicells in
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<taxonomicName id="76D54D14FFAFFF95FD2CF84EA9A53FD6" box="[831,962,1996,2022]" class="Conjugatophyceae" family="Desmidiaceae" genus="Euastrum" kingdom="Plantae" order="Zygnematales" pageId="0" pageNumber="107" phylum="Charophyta" rank="species" species="dubium">
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<emphasis id="83A1EA85FFAFFF95FD2CF84EA9A53FD6" box="[831,962,1996,2022]" italics="true" pageId="0" pageNumber="107">Eu. dubium</emphasis>
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</taxonomicName>
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are characterized by gradually converging lateral sides with a distinct curve midway (
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<figureCitation id="29EE2A12FFAFFF95FC92F873A96D303A" box="[641,778,2032,2058]" captionStart="FIGURES 26–34" captionStartId="4.[136,243,1953,1975]" captionTargetBox="[210,1377,190,1929]" captionTargetId="figure-22@4.[210,1377,190,1929]" captionTargetPageId="4" captionText="FIGURES 26–34. SEM photographs. 26. Cosmarium mandosii. 27. C. arcuatiporosum. 28. C. logiensiforme. 29. Euastrum tumoriferum. 30 Eu. neogutwinskii. 31.Eu. dubioides. 32. Eu. dubium var. dubium. 33 Eu. dubium var. ornatum. 34. Eu. denticulatum. Scale bar = 10 µm." figureDoi="http://doi.org/10.5281/zenodo.13878399" httpUri="https://zenodo.org/record/13878399/files/figure.png" pageId="0" pageNumber="107">Figs 32, 33</figureCitation>
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), semicells in our alga are partitioned into a more or less rectangular basal part abruptly passing into a much narrower, rectangular apical part. In that feature it also differs from
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<taxonomicName id="76D54D14FFAEFF94FED5FF40ABB738EC" authority="F. Gay" authorityName="F. Gay" box="[198,464,194,220]" class="Conjugatophyceae" family="Desmidiaceae" genus="Euastrum" kingdom="Plantae" order="Zygnematales" pageId="1" pageNumber="108" phylum="Charophyta" rank="species" species="denticulatum">
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<emphasis id="83A1EA85FFAEFF94FED5FF40ABE238EC" box="[198,389,194,220]" italics="true" pageId="1" pageNumber="108">Eu. denticulatum</emphasis>
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F.Gay
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</taxonomicName>
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which species moreover is characterized by a lower cell length to breadth ratio and less pronounced lateral lobes (
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<figureCitation id="29EE2A12FFAEFF94FFB9FF65AB9F3930" box="[426,504,230,256]" captionStart="FIGURES 26–34" captionStartId="4.[136,243,1953,1975]" captionTargetBox="[210,1377,190,1929]" captionTargetId="figure-22@4.[210,1377,190,1929]" captionTargetPageId="4" captionText="FIGURES 26–34. SEM photographs. 26. Cosmarium mandosii. 27. C. arcuatiporosum. 28. C. logiensiforme. 29. Euastrum tumoriferum. 30 Eu. neogutwinskii. 31.Eu. dubioides. 32. Eu. dubium var. dubium. 33 Eu. dubium var. ornatum. 34. Eu. denticulatum. Scale bar = 10 µm." figureDoi="http://doi.org/10.5281/zenodo.13878399" httpUri="https://zenodo.org/record/13878399/files/figure.png" pageId="1" pageNumber="108">Fig 34</figureCitation>
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).
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</paragraph>
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<paragraph id="B16A3697FFAEFF94FEAEFE89AE56395C" blockId="1.[136,1452,158,437]" pageId="1" pageNumber="108">
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Actually, in rough cell outline our alga could be rather compared with
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<taxonomicName id="76D54D14FFAEFF94FDDDFE88AF1D3915" authority="(Wittrock) Roy. However" authorityName="Roy. However" baseAuthorityName="Wittrock" box="[974,1402,266,293]" class="Conjugatophyceae" family="Desmidiaceae" genus="Euastrum" kingdom="Plantae" order="Zygnematales" pageId="1" pageNumber="108" phylum="Charophyta" rank="species" species="insulare">
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<emphasis id="83A1EA85FFAEFF94FDDDFE88AE313914" box="[974,1110,266,292]" italics="true" pageId="1" pageNumber="108">Eu. insulare</emphasis>
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(Wittrock) Roy. However
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</taxonomicName>
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,
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<taxonomicName id="76D54D14FFAEFF94FB96FE88AA843978" class="Conjugatophyceae" family="Desmidiaceae" genus="Euastrum" kingdom="Plantae" order="Zygnematales" pageId="1" pageNumber="108" phylum="Charophyta" rank="species" species="insulare">
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<emphasis id="83A1EA85FFAEFF94FB96FE88AA843978" italics="true" pageId="1" pageNumber="108">Eu. insulare</emphasis>
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</taxonomicName>
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is characterized by a wide, very shallow median apical indentation and is in want of any marked cell wall ornamentation. Therefore we think it justified to describe our alga as a new species.
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</paragraph>
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<paragraph id="B16A3697FFAEFF94FEAEFEF4A9BF3985" blockId="1.[136,1452,158,437]" pageId="1" pageNumber="108">
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In the province of
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<collectingRegion id="7311F875FFAEFF94FF9FFEF5AB8E39A0" box="[396,489,374,400]" country="Netherlands" name="Drenthe" pageId="1" pageNumber="108">Drenthe</collectingRegion>
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,
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<taxonomicName id="76D54D14FFAEFF94FFE7FEF4A8B239A0" authorityName="Van Westen et Coesel" authorityYear="2020" box="[500,725,374,400]" class="Conjugatophyceae" family="Desmidiaceae" genus="Euastrum" kingdom="Plantae" order="Zygnematales" pageId="1" pageNumber="108" phylum="Charophyta" rank="species" species="dubioides">
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<emphasis id="83A1EA85FFAEFF94FFE7FEF4A8B239A0" box="[500,725,374,400]" italics="true" pageId="1" pageNumber="108">Euastrum dubioides</emphasis>
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</taxonomicName>
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is found mainly in wet meadows between mosses and in slightly acidic oligo-mesotrophic shallow pools dug for nature restoration purposes.
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</paragraph>
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</subSubSection>
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</treatment>
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</document> |