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<document ID-CLB-Dataset="53599" ID-DOI="http://dx.doi.org/10.3897/phytokeys.226.103500" ID-GBIF-Dataset="30e5c897-fddf-4f1e-8b36-a9c0a2e38892" ID-PMC="PMC10189646" ID-Pensoft-Pub="1314-2003-226-33" ID-Pensoft-UUID="7ACDC9791B575F5E9AFE954DE6D6C185" ID-PubMed="37207079" ModsDocID="1314-2003-226-33" checkinTime="1683649920426" checkinUser="pensoft" docAuthor="Levanets, Anatoliy &amp; Janse van Vuuren, Sanet" docDate="2023" docId="F4D3197082D25773B0B6B2AAA68705D3" docLanguage="en" docName="PhytoKeys 226: 33-51" docOrigin="PhytoKeys 226" docPubDate="2023-05-09" docSource="http://dx.doi.org/10.3897/phytokeys.226.103500" docTitle="Micrasterias foliacea subsp. var. var. elongata Willi Krieger 1939" docType="treatment" docVersion="5" id="7ACDC9791B575F5E9AFE954DE6D6C185" lastPageNumber="33" masterDocId="7ACDC9791B575F5E9AFE954DE6D6C185" masterDocTitle="Morphology, taxonomy, biogeography and ecology of Micrasterias foliacea Bailey ex Ralfs (Desmidiales, Zygnematophyceae)" masterLastPageNumber="51" masterPageNumber="33" pageNumber="33" updateTime="1732749910266" updateUser="ExternalLinkService">
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<mods:title id="C2CEF5C7ADEC6925026F80925476129E">Morphology, taxonomy, biogeography and ecology of Micrasterias foliacea Bailey ex Ralfs (Desmidiales, Zygnematophyceae)</mods:title>
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<mods:roleTerm id="0D28187DB6000BD28F871F84E379A58F">Author</mods:roleTerm>
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<mods:namePart id="64982D5C37879ED141EE50D2F682BFC5">Levanets, Anatoliy</mods:namePart>
<mods:affiliation id="2F182C50190B81B45172D75800725A56">Unit for Environmental Sciences and Management, North-West University, Private Bag X 6001, Potchefstroom, 2520, South Africa</mods:affiliation>
<mods:nameIdentifier id="4655EF34C7714BDE9F34A53ADFF23E2E" type="email">20868421@nwu.ac.za</mods:nameIdentifier>
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<mods:namePart id="FDF8810CB1AF64562DCE65553AFC05D6">Janse van Vuuren, Sanet</mods:namePart>
<mods:nameIdentifier id="7B981965903F130943BAC9C72F3EE296" type="ORCID">https://orcid.org/0000-0001-5361-9905</mods:nameIdentifier>
<mods:affiliation id="D7B5C3EEEFAE10354BAA39F60EB0C594">Unit for Environmental Sciences and Management, North-West University, Private Bag X 6001, Potchefstroom, 2520, South Africa</mods:affiliation>
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<mods:title id="A0ED6640A654F016CAB9279C33A5921B">PhytoKeys</mods:title>
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<mods:date id="1745B573840AC6431E24BA6FA51803BD">2023</mods:date>
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<mods:number id="F78DF5B9F86D2D6D29BD0375CDCA7980">226</mods:number>
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<treatment id="F4D3197082D25773B0B6B2AAA68705D3" ID-GBIF-Taxon="209614814" LSID="urn:lsid:plazi:treatment:F4D3197082D25773B0B6B2AAA68705D3" httpUri="http://treatment.plazi.org/id/F4D3197082D25773B0B6B2AAA68705D3" lastPageNumber="33" pageId="0" pageNumber="33">
<subSubSection id="F29DA725484A319244453077149406D6" pageId="0" pageNumber="33" type="nomenclature">
<paragraph id="521B99ABECFF307A5675034085AF41CA" pageId="0" pageNumber="33">
2.
<taxonomicName id="DBD7E626B8D022532961468767288F5D" LSID="F4D31970-82D2-5773-B0B6-B2AAA68705D3" authority="(W. B. Turner) Willi Krieger, 1939" authorityName="Willi Krieger" authorityYear="1939" baseAuthorityName="W. B. Turner" family="Desmidiaceae" genus="Micrasterias" higherTaxonomySource="treatment-meta" kingdom="Plantae" lsidName="Micrasterias foliacea subsp. var. var. elongata" order="Desmidiales" pageId="0" pageNumber="33" rank="variety" species="foliacea" subSpecies="var." variety="elongata">Micrasterias foliacea var. elongata (W.B. Turner) Willi Krieger, 1939</taxonomicName>
</paragraph>
</subSubSection>
<subSubSection id="09D610936F5A4B079D6D68A6333BFE6A" pageId="0" pageNumber="33" type="reference_group">
<paragraph id="E5375891E5F0ECA2A0ED451260292162" pageId="0" pageNumber="33">
<taxonomicName id="4467BD9B88974990CBDF6F031FED3413" authorityName="Willi Krieger" authorityYear="1939" baseAuthorityName="W. B. Turner" family="Desmidiaceae" genus="Micrasterias" higherTaxonomySource="treatment-meta" kingdom="Plantae" lsidName="Micrasterias foliacea subsp. var. var. elongata" order="Desmidiales" pageId="0" pageNumber="33" rank="variety" species="foliacea" subSpecies="var." variety="elongata">Micrasterias foliacea var. elongata</taxonomicName>
(W.B. Turner) Willi Krieger, 1939.
<normalizedToken id="A8638D5490D4783BDC1809CA94E3780A" originalValue="“Rabenhorst’s">&quot;Rabenhorst's</normalizedToken>
Kryptogamen-Flora von Deutschland&quot;,
<normalizedToken id="C465D8FFE2172CA7DC90D23997909332" originalValue="“Österreich">&quot;Oesterreich</normalizedToken>
und der Schweiz&quot;, 2 Aufl., 13 (Abt.1, Teil 2): 77.
</paragraph>
</subSubSection>
<subSubSection id="FAE5225924A9A0CE5C751927CDFB4D3C" pageId="0" pageNumber="33" type="synonyms">
<paragraph id="D01F5974439145948CACE600EE010DE4" pageId="0" pageNumber="33">Synonyms.</paragraph>
<paragraph id="A8C379A36F0584CC4CB9431BCBB5E922" pageId="0" pageNumber="33">
<taxonomicName id="8A559082741472C85C4AA1C5D98BAF40" class="Conjugatophyceae" family="Desmidiaceae" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="M. foliacea" order="Algae" pageId="0" pageNumber="33" phylum="Charophyta" rank="species" species="foliacea">
<emphasis id="5D4A8A09C40086C0FCE38B4C76C5001C" italics="true" pageId="0" pageNumber="33">M. foliacea</emphasis>
</taxonomicName>
Bailey ex Ralfs var.
<normalizedToken id="8009DB5B93BC7BB6E206E93FE82C9EA9" originalValue="β">β</normalizedToken>
Wallich, 1860. &quot;Annals and Magazine of Natural History&quot; Series 3, 5: 280, tab. XIV, figs 1-4;
<taxonomicName id="AC684BD5434644A5DB4B5C39297523C7" class="Conjugatophyceae" family="Desmidiaceae" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="M. elongata subsp. f. β" order="Algae" pageId="0" pageNumber="33" phylum="Charophyta" rank="species" species="elongata">
M. foliacea Bailey ex Ralfs f.
<normalizedToken id="51A0E62AE2E759269FB06F79633DE3D6" originalValue="β">β</normalizedToken>
elongata
</taxonomicName>
Turner, 1892. &quot;Aquae Dulcis Indiae Orientalis&quot;: 94.
</paragraph>
<paragraph id="FCCCC09BA763CBAC6967794105212866" pageId="0" pageNumber="33">
This variety was originally described by
<bibRefCitation id="87EA7A02580A43E19538B4C764CD5F48" DOI="https://doi.org/10.1080/00222936008697200" author="Wallich, GC" journalOrPublisher="Hydrobiologia" pageId="0" pageNumber="33" refId="B70" refString="Wallich, GC, 1860. Description of Desmidieae from Lower Bengal. Annals and Magazine of Natural History, Series 3, 5: 184-197. [273-285.] https://doi.org/10.1080/00222936008697200" title="Description of Desmidieae from Lower Bengal. Annals and Magazine of Natural History, Series 3, 5: 184 - 197. [273 - 285.]" url="https://doi.org/10.1080/00222936008697200" year="1860">Wallich (1860)</bibRefCitation>
as &quot;var.
<normalizedToken id="A70D12AF5D043F9F202063588D3A1568" originalValue="β”">β&quot;</normalizedToken>
. A later study by
<bibRefCitation id="85836BEB3C3E9FF130CD32A648933ABA" author="Turner, WB" journalOrPublisher="Boktryckeriet, Stockholm" pageId="0" pageNumber="33" refId="B67" refString="Turner, WB, 1892. Algae Aquae Dulcis Indiae Orientalis. The Fresh-Water Algae (principally Desmidieae) of East India. Kongl. Boktryckeriet, Stockholm" title="Algae Aquae Dulcis Indiae Orientalis. The Fresh-Water Algae (principally Desmidieae) of East India. Kongl." year="1892">Turner (1892)</bibRefCitation>
revealed the same alga, but he described it as &quot;forma
<normalizedToken id="C3575412FAF1B04D979E8B6376222253" originalValue="β">β</normalizedToken>
<emphasis id="3067B9EED13DD52633C1AA632EB963D4" italics="true" pageId="0" pageNumber="33">elongata</emphasis>
&quot;. In his monograph,
<bibRefCitation id="3775DCE7779B57174BB66676AA82A1AE" author="Krieger, W" journalOrPublisher="Journal of Ecology and Environment" pageId="0" pageNumber="33" refId="B29" refString="Krieger, W, 1939. Die Demidiaceen Europas mit Beruecksichtigung der auβereuropaeischen Arten. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz 13(2). Akademische Verlagsgesellschaft M.B.H., Leipzig, 1-117." title="Die Demidiaceen Europas mit Beruecksichtigung der auβereuropaeischen Arten. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz 13 (2). Akademische Verlagsgesellschaft M. B. H., Leipzig, 1 - 117." year="1939">Krieger (1939)</bibRefCitation>
indicated the same algal species as &quot;var.
<taxonomicName id="F1FDAE49E1E782656A9F481D9EDB1AD7" authority="elongata" family="Desmidiaceae" genus="Micrasterias" kingdom="Plantae" lsidName="Micrasterias elongata var. elongata" order="Desmidiales" pageId="0" pageNumber="33" rank="variety" species="elongata" variety="elongata">Micrasterias elongata elongata</taxonomicName>
Turner&quot;.
</paragraph>
</subSubSection>
<subSubSection id="4194E286854F1EC3EC42D10BB0C78D63" pageId="0" pageNumber="33" type="morphology">
<paragraph id="DA9EF85398997289539497C4C7108789" pageId="0" pageNumber="33">Morphology.</paragraph>
<paragraph id="07ACCBC96214F380FFB378E8157554F0" pageId="0" pageNumber="33">
The prominent feature of
<taxonomicName id="EC0611ED31E428588556C4EE9D74A410" class="Conjugatophyceae" family="Desmidiaceae" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="M. foliacea subsp. var. var. elongata" order="Algae" pageId="0" pageNumber="33" phylum="Charophyta" rank="variety" species="foliacea" subSpecies="var." variety="elongata">M. foliacea var. elongata</taxonomicName>
is the largely developed, triangular terminal lobe, with an outward directed base, emarginate at its angles and centre and furnished with two short stout teeth placed obliquely to each other (comparable to that of
<taxonomicName id="31D29E1E694F9A35B17D45F0FFA9D8DF" class="Conjugatophyceae" family="Desmidiaceae" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="M. baileyi" order="Algae" pageId="0" pageNumber="33" phylum="Charophyta" rank="species" species="baileyi">
<emphasis id="0A93219FF9B9624431B4D9BCCB5F91A8" italics="true" pageId="0" pageNumber="33">M. baileyi</emphasis>
</taxonomicName>
). The central emargination of this lobe is deep and rectangular and the entire lobe projects very slightly beyond the apices of the lateral lobes. The margins of the filament are parallel and direct, the fronds tabular, and divided by a very deep constriction into two dichotomously incised segments, the ultimate subdivisions of which are emarginate. In the Bengal variety, the teeth-like projections next to the terminal lobe are acutely angular, instead of being rounded and, as in the case of
<taxonomicName id="06E346AA9A74E4DB51785B645A0FAFAB" authorityName="G. C. Wallich" authorityYear="1860" class="Conjugatophyceae" family="Desmidiaceae" genus="Onychonema" kingdom="Plantae" lsidName="Onychonema" order="Zygnematales" pageId="0" pageNumber="33" phylum="Charophyta" rank="genus">
<emphasis id="0128313F6B16BBCC3B72335AB8DAF279" italics="true" pageId="0" pageNumber="33">Onychonema</emphasis>
</taxonomicName>
, the projecting processes, by which cohesion is either secured or increased, overlap each other alternately in adjacent fronds. The cell length is 85-90
<normalizedToken id="791FFBADE6D1934935485989DB21E396" originalValue="μm">μm</normalizedToken>
, width 70-75
<normalizedToken id="6B603CC7C9C40CE67B25438E0673269A" originalValue="μm">μm</normalizedToken>
, width of isthmus 11-13
<normalizedToken id="57793861873AB7EBD22ACBB85D61D895" originalValue="μm">μm</normalizedToken>
, width of apex 32
<normalizedToken id="FF60E72B8FF0314020B2BB480E98125D" originalValue="μm">μm</normalizedToken>
, width of polar lobes 15
<normalizedToken id="602A0E92C9B71636C259C0914DC7AFD4" originalValue="μm">μm</normalizedToken>
(
<bibRefCitation id="463D356D1BC90AE3BF43B9D8B424A8F8" DOI="https://doi.org/10.1080/00222936008697200" author="Wallich, GC" journalOrPublisher="Hydrobiologia" pageId="0" pageNumber="33" refId="B70" refString="Wallich, GC, 1860. Description of Desmidieae from Lower Bengal. Annals and Magazine of Natural History, Series 3, 5: 184-197. [273-285.] https://doi.org/10.1080/00222936008697200" title="Description of Desmidieae from Lower Bengal. Annals and Magazine of Natural History, Series 3, 5: 184 - 197. [273 - 285.]" url="https://doi.org/10.1080/00222936008697200" year="1860">Wallich 1860</bibRefCitation>
;
<bibRefCitation id="6D5F26D44C17CB8B2B4BE5F8CF75C147" author="Turner, WB" journalOrPublisher="Boktryckeriet, Stockholm" pageId="0" pageNumber="33" refId="B67" refString="Turner, WB, 1892. Algae Aquae Dulcis Indiae Orientalis. The Fresh-Water Algae (principally Desmidieae) of East India. Kongl. Boktryckeriet, Stockholm" title="Algae Aquae Dulcis Indiae Orientalis. The Fresh-Water Algae (principally Desmidieae) of East India. Kongl." year="1892">Turner 1892</bibRefCitation>
).
</paragraph>
</subSubSection>
<subSubSection id="A4B2AAEA02FA532CE1470BAABEC18B89" pageId="0" pageNumber="33" type="distribution">
<paragraph id="5831EC4F93E07A52334298F4DC6E8BD9" pageId="0" pageNumber="33">Distribution.</paragraph>
<paragraph id="928B7F34B7ED6BF8F41C3D8D0F2A029D" pageId="0" pageNumber="33">
This variety seems to be endemic to southeastern tropical Asia (Lower Bengal, India; Fig.
<figureCitation id="9B157EECCEAD074A8AAFB56B7DC6DA36" captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Worldwide distribution of different varieties of Micrasterias foliacea." figureDoi="10.3897/phytokeys.226.103500.figure2" httpUri="https://binary.pensoft.net/fig/847713" pageId="0" pageNumber="33">2</figureCitation>
and Suppl. material 2), where it was found in the 1800's by Wallich (
<bibRefCitation id="A870F5E9DE7D9AE601BFBF81886EE087" DOI="https://doi.org/10.1080/00222936008697200" author="Wallich, GC" journalOrPublisher="Hydrobiologia" pageId="0" pageNumber="33" refId="B70" refString="Wallich, GC, 1860. Description of Desmidieae from Lower Bengal. Annals and Magazine of Natural History, Series 3, 5: 184-197. [273-285.] https://doi.org/10.1080/00222936008697200" title="Description of Desmidieae from Lower Bengal. Annals and Magazine of Natural History, Series 3, 5: 184 - 197. [273 - 285.]" url="https://doi.org/10.1080/00222936008697200" year="1860">Wallich 1860</bibRefCitation>
). A single record of this variety from Sierra Leone (
<bibRefCitation id="4F8B7C0F6A2387075468B253C1EFE86F" DOI="https://doi.org/10.1007/BF00018696" author="Woodhead, N" journalOrPublisher="Hydrobiologia" pageId="0" pageNumber="33" pagination="299 - 395" refId="B72" refString="Woodhead, N, Tweed, RD, 1958. A check-list of tropical West African algae. Hydrobiologia 11 (3-4): 299 - 395, DOI: https://doi.org/10.1007/BF00018696" title="A check-list of tropical West African algae." url="https://doi.org/10.1007/BF00018696" volume="11" year="1958">Woodhead and Tweed 1958</bibRefCitation>
; Suppl. material 2) is doubtful, because descriptions and illustrations of the cell morphology, as well as information about the sampling site, are absent.
</paragraph>
</subSubSection>
<subSubSection id="E8E2BC97AD4BBB8EAD1BF936A3C30AA5" pageId="0" pageNumber="33" type="habitat">
<paragraph id="C024C21095D415C74B5C8655800800AE" pageId="0" pageNumber="33">Habitat and ecology.</paragraph>
<paragraph id="848C7C23DC1959534ACBEED0C4A57FBA" pageId="0" pageNumber="33">No information is available in the literature about the habitats or ecology of this variety.</paragraph>
</subSubSection>
</treatment>
</document>
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