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<document id="21A2D52622383F4B23A89FAEACE5967B" ID-DOI="10.11646/phytotaxa.391.3.2" ID-ISSN="1179-3163" ID-Zenodo-Dep="13726470" IM.bibliography_approvedBy="felipe" IM.illustrations_approvedBy="felipe" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" IM.treatmentCitations_approvedBy="felipe" IM.treatments_approvedBy="felipe" checkinTime="1725676164053" checkinUser="felipe" docAuthor="Ramos, Geraldo José Peixoto, Costa, Fabiana De Matos, Santos, Maria Aparecida Dos &amp; Moura, Carlos Wallace Do Nascimento" docDate="2019" docId="FB1D87F6FFCDFFCBFF7DD565FE4B279E" docLanguage="en" docName="phytotaxa.391.3.2.pdf" docOrigin="Phytotaxa 391 (3)" docSource="http://dx.doi.org/10.11646/phytotaxa.391.3.2" docStyle="DocumentStyle:96748F8F1B6C902996E134952A3A36B9.13:Phytotaxa.2014-.journal_article" docStyleId="96748F8F1B6C902996E134952A3A36B9" docStyleName="Phytotaxa.2014-.journal_article" docStyleVersion="13" docTitle="Euastrum octogibbosum Willi Krieg. 1937" docType="treatment" docVersion="2" lastPageNumber="190" masterDocId="0724FF8EFFC8FFCEFFF5D455FFBA2433" masterDocTitle="Taxonomic novelties, new records, and rare species of desmids from the Chapada Diamantina region, Brazil" masterLastPageNumber="196" masterPageNumber="185" pageNumber="190" updateTime="1725688886064" updateUser="ExternalLinkService" zenodo-license-figures="UNSPECIFIED" zenodo-license-treatments="UNSPECIFIED">
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<mods:title id="909555F4D7DF9B2D43F7744F78C08ABA">Taxonomic novelties, new records, and rare species of desmids from the Chapada Diamantina region, Brazil</mods:title>
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<mods:namePart id="BA305AA5160F6D7357756319C29C6809">Ramos, Geraldo José Peixoto</mods:namePart>
<mods:affiliation id="9E8BDE690552D36D039B8E4A5A885967">Laboratório de Ficologia, Universidade Estadual de Feira de Santana, Av. Transnordestina, s / nº, Novo Horizonte, 44036 - 900, Feira de Santana, BA, Brazil</mods:affiliation>
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<mods:namePart id="DE79B0FFBB5E646954672A101768881D">Costa, Fabiana De Matos</mods:namePart>
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<mods:namePart id="0D3171EFDECC30B1B6AA378E6C6F45EB">Santos, Maria Aparecida Dos</mods:namePart>
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<mods:namePart id="C80EBE74873CDFDAB4D3DAD89C9647C8">Moura, Carlos Wallace Do Nascimento</mods:namePart>
<mods:affiliation id="11BB6991239EC5892470DBEA6F6E1A5C">Laboratório de Ficologia, Universidade Estadual de Feira de Santana, Av. Transnordestina, s / nº, Novo Horizonte, 44036 - 900, Feira de Santana, BA, Brazil</mods:affiliation>
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<treatment id="FB1D87F6FFCDFFCBFF7DD565FE4B279E" LSID="urn:lsid:plazi:treatment:FB1D87F6FFCDFFCBFF7DD565FE4B279E" httpUri="http://treatment.plazi.org/id/FB1D87F6FFCDFFCBFF7DD565FE4B279E" lastPageNumber="190" pageId="5" pageNumber="190">
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<paragraph id="730B36E0FFCDFFCBFF7DD565FCEB257A" blockId="5.[136,849,304,329]" box="[136,849,304,329]" pageId="5" pageNumber="190">
<heading id="2843818CFFCDFFCBFF7DD565FCEB257A" box="[136,849,304,329]" fontSize="11" level="2" pageId="5" pageNumber="190" reason="3">
<taxonomicName id="B4B44D63FFCDFFCBFF7DD565FD00257A" authority="Willi Krieg. (1937: 586)" authorityName="Willi Krieg." authorityPageNumber="586" authorityYear="1937" box="[136,698,304,329]" class="Conjugatophyceae" family="Desmidiaceae" genus="Euastrum" kingdom="Plantae" order="Zygnematales" pageId="5" pageNumber="190" phylum="Charophyta" rank="species" species="octogibbosum">
<emphasis id="41C0EAF2FFCDFFCBFF7DD565FE18257A" bold="true" box="[136,418,304,329]" italics="true" pageId="5" pageNumber="190">Euastrum octogibbosum</emphasis>
Willi Krieg. (1937: 586)
</taxonomicName>
(
<figureCitation id="EB8F2A65FFCDFFCBFD3DD565FCF3257A" box="[712,841,304,329]" captionStart="FIGURES 227" captionStartId="3.[136,243,1734,1755]" captionTargetBox="[190,1399,202,1703]" captionTargetId="figure-14@3.[178,1410,190,1709]" captionTargetPageId="3" captionText="FIGURES 227. Cosmarium diamantinum (26): ventral view (24), lateral view (5) apical view (6); Cosmarium dimaziforme var. concavum (710): ventral view (7), lateral view (8) apical view (9), cell division (10); Cosmarium pentachondrum (1113): ventral view (11), lateral view (12) apical view (13); Euastrum bahiense (1416): ventral view (14), lateral view (15) apical view (16); Euastrum croasdaleae var. incrassatum (1720): ventral view (17,18), lateral view (19) apical view (20); Euastrum duplicato-verrucosum (2125): ventral view (21,22), lateral view (23) apical view (24), zygospore (25); Euastrum octogibbosum (2627): LM (26), SEM (27). Scale bar 10 μm." figureDoi="http://doi.org/10.5281/zenodo.13726472" httpUri="https://zenodo.org/record/13726472/files/figure.png" pageId="5" pageNumber="190">Figs 2627</figureCitation>
)
</heading>
</paragraph>
<paragraph id="730B36E0FFCDFFCBFF7DD52DFB5825A2" blockId="5.[136,1452,375,941]" box="[136,1250,375,401]" pageId="5" pageNumber="190">
<emphasis id="41C0EAF2FFCDFFCBFF7DD52DFEF525A2" bold="true" box="[136,335,376,401]" pageId="5" pageNumber="190">Cell dimensions:</emphasis>
length 19,521 μm, breadth 13,515 μm, apical lobe 1112 μm, isthmus 56 μm.
</paragraph>
</subSubSection>
<subSubSection id="3BAE656BFFCDFFCBFF48D5C9FEB925EA" pageId="5" pageNumber="190" type="description">
<paragraph id="730B36E0FFCDFFCBFF48D5C9FEB925EA" blockId="5.[136,1452,375,941]" pageId="5" pageNumber="190">
<emphasis id="41C0EAF2FFCDFFCBFF48D5C9FE6D2586" bold="true" box="[189,471,412,437]" pageId="5" pageNumber="190">Habitat characteristics:</emphasis>
Periphyton; water temperature 21ºC, pH 7.8, conductivity 10 μS.
<superScript id="84C19BA8FFCDFFCBFB5DD5C9FB66259B" attach="left" box="[1192,1244,410,437]" fontSize="6" pageId="5" pageNumber="190">cm-1</superScript>
, dissolved oxygen
<quantity id="B44C9B05FFCDFFCBFF7DD595FF6225EA" box="[136,216,448,473]" metricMagnitude="-6" metricUnit="kg" metricValue="9.2" pageId="5" pageNumber="190" unit="mg" value="9.2">9.2 mg</quantity>
.L-
<superScript id="84C19BA8FFCDFFCBFF01D5EBFF4125FF" attach="right" box="[244,251,446,460]" fontSize="6" pageId="5" pageNumber="190">1</superScript>
.
</paragraph>
</subSubSection>
<subSubSection id="3BAE656BFFCDFFCBFF48D5B1FE4B279E" pageId="5" pageNumber="190" type="materials_examined">
<paragraph id="730B36E0FFCDFFCBFF48D5B1FDD125CE" blockId="5.[136,1452,375,941]" box="[189,619,484,509]" pageId="5" pageNumber="190">
<emphasis id="41C0EAF2FFCDFFCBFF48D5B1FE1325CE" bold="true" box="[189,425,484,509]" pageId="5" pageNumber="190">Material examined:</emphasis>
<collectionCode id="15A5AE25FFCDFFCBFE45D5B1FDB325CE" box="[432,521,484,509]" country="Brazil" httpUri="http://biocol.org/urn:lsid:biocol.org:col:15506" lsid="urn:lsid:biocol.org:col:15506" name="Universidade Estadual de Feira de Santana" pageId="5" pageNumber="190" type="Herbarium">HUEFS</collectionCode>
244149.
</paragraph>
<paragraph id="730B36E0FFCDFFCBFF48D65DFEEA265A" blockId="5.[136,1452,375,941]" pageId="5" pageNumber="190">
<emphasis id="41C0EAF2FFCDFFCBFF48D65DFEB32612" bold="true" box="[189,265,520,545]" pageId="5" pageNumber="190">Notes:</emphasis>
<bibRefCitation id="17254B11FFCDFFCBFEFBD65DFE092612" author="Krieger, W." box="[270,435,520,545]" pageId="5" pageNumber="190" pagination="1 - 712" refId="ref7105" refString="Krieger, W. (1937) Die Desmidiaceen Europas mit Berucksichtigung der aussereuropaischen Arten Pt. 13 (1) of Dr. Rabenhorst's Kryptogamen-Flora von Deutschland, Osterreich und der Schweiz. Conjugatae. Die Desmidiaceen. Leipzig: Ed. Akad. Verlagsgesellschaft, pp. 1 - 712." type="book chapter" year="1937">Krieger (1937)</bibRefCitation>
proposed
<taxonomicName id="B4B44D63FFCDFFCBFDD6D65DFC882612" box="[547,818,520,545]" class="Conjugatophyceae" family="Desmidiaceae" genus="Euastrum" kingdom="Plantae" order="Zygnematales" pageId="5" pageNumber="190" phylum="Charophyta" rank="species" species="octogibbosum">
<emphasis id="41C0EAF2FFCDFFCBFDD6D65DFC882612" box="[547,818,520,545]" italics="true" pageId="5" pageNumber="190">Euastrum octogibbosum</emphasis>
</taxonomicName>
as a new name for
<taxonomicName id="B4B44D63FFCDFFCBFC08D65DFE682676" authority="West &amp; G. S. West (1907: 198)" authorityName="West &amp; G. S. West" authorityPageNumber="198" authorityYear="1907" class="Conjugatophyceae" family="Desmidiaceae" genus="Euastrum" kingdom="Plantae" order="Zygnematales" pageId="5" pageNumber="190" phylum="Charophyta" rank="variety" species="coralloides" variety="subintegrum">
<emphasis id="41C0EAF2FFCDFFCBFC08D65DFB572612" box="[1021,1261,520,545]" italics="true" pageId="5" pageNumber="190">Euastrum coralloides</emphasis>
var.
<emphasis id="41C0EAF2FFCDFFCBFAEAD65DFA112612" box="[1311,1451,520,545]" italics="true" pageId="5" pageNumber="190">subintegrum</emphasis>
West &amp; G.S.
<bibRefCitation id="17254B11FFCDFFCBFEFED679FE682676" author="West, W. &amp; West, G. S." box="[267,466,556,581]" pageId="5" pageNumber="190" pagination="175 - 260" refId="ref8196" refString="West, W. &amp; West, G. S. (1907) Fresh-water algae from Burma, including a few from Bengal and Madras. Annals of the Royal Botanic Garden, Calcutta 6 (2): 175 - 260." type="journal article" year="1907">West (1907: 198)</bibRefCitation>
</taxonomicName>
based on specimens from
<collectingCountry id="0BA37670FFCDFFCBFD02D679FCF92676" box="[759,835,556,581]" name="Myanmar" pageId="5" pageNumber="190">Burma</collectingCountry>
(
<collectingCountry id="0BA37670FFCDFFCBFCA4D679FC7E2676" box="[849,964,556,581]" name="Myanmar" pageId="5" pageNumber="190">Myanmar</collectingCountry>
), as that author considered
<taxonomicName id="B4B44D63FFCDFFCBFB1AD679FA312676" box="[1263,1419,556,581]" class="Conjugatophyceae" family="Desmidiaceae" genus="Euastrum" kingdom="Plantae" order="Zygnematales" pageId="5" pageNumber="190" phylum="Charophyta" rank="species" species="coralloides">
<emphasis id="41C0EAF2FFCDFFCBFB1AD679FA312676" box="[1263,1419,556,581]" italics="true" pageId="5" pageNumber="190">E. coralloides</emphasis>
</taxonomicName>
an uncertain species.
</paragraph>
<paragraph id="730B36E0FFCDFFCBFF48D621FF7426CA" blockId="5.[136,1452,375,941]" pageId="5" pageNumber="190">
<taxonomicName id="B4B44D63FFCDFFCBFF48D621FE7426BE" box="[189,462,628,653]" class="Conjugatophyceae" family="Desmidiaceae" genus="Euastrum" kingdom="Plantae" order="Zygnematales" pageId="5" pageNumber="190" phylum="Charophyta" rank="species" species="octogibbosum">
<emphasis id="41C0EAF2FFCDFFCBFF48D621FE7426BE" box="[189,462,628,653]" italics="true" pageId="5" pageNumber="190">Euastrum octogibbosum</emphasis>
</taxonomicName>
is a rare species, with known distributions on the Asian continent (
<bibRefCitation id="17254B11FFCDFFCBFB43D621FAF426BE" author="Krieger, W." box="[1206,1358,628,653]" pageId="5" pageNumber="190" pagination="1 - 712" refId="ref7105" refString="Krieger, W. (1937) Die Desmidiaceen Europas mit Berucksichtigung der aussereuropaischen Arten Pt. 13 (1) of Dr. Rabenhorst's Kryptogamen-Flora von Deutschland, Osterreich und der Schweiz. Conjugatae. Die Desmidiaceen. Leipzig: Ed. Akad. Verlagsgesellschaft, pp. 1 - 712." type="book chapter" year="1937">Krieger 1937</bibRefCitation>
, Hinode 1955, Scott &amp; Prescott 1961). The main morphological features of this species are trapeziform semicells with four prominent verrucae near the margins of the lobes and a central inflation furnished with 3 verrucae arranged in a circle.
</paragraph>
<paragraph id="730B36E0FFCDFFCBFF48D751FE4B279E" blockId="5.[136,1452,375,941]" pageId="5" pageNumber="190">
The Brazilian specimens are closest to Indonesian samples illustrated by Scott &amp; Prescott (1961: Pl 13,
<figureCitation id="EB8F2A65FFCDFFCBFAB1D751FA3D272E" box="[1348,1415,772,797]" captionStart="FIGURES 227" captionStartId="3.[136,243,1734,1755]" captionTargetBox="[190,1399,202,1703]" captionTargetId="figure-14@3.[178,1410,190,1709]" captionTargetPageId="3" captionText="FIGURES 227. Cosmarium diamantinum (26): ventral view (24), lateral view (5) apical view (6); Cosmarium dimaziforme var. concavum (710): ventral view (7), lateral view (8) apical view (9), cell division (10); Cosmarium pentachondrum (1113): ventral view (11), lateral view (12) apical view (13); Euastrum bahiense (1416): ventral view (14), lateral view (15) apical view (16); Euastrum croasdaleae var. incrassatum (1720): ventral view (17,18), lateral view (19) apical view (20); Euastrum duplicato-verrucosum (2125): ventral view (21,22), lateral view (23) apical view (24), zygospore (25); Euastrum octogibbosum (2627): LM (26), SEM (27). Scale bar 10 μm." figureDoi="http://doi.org/10.5281/zenodo.13726472" httpUri="https://zenodo.org/record/13726472/files/figure.png" pageId="5" pageNumber="190">Fig. 3</figureCitation>
, as
<taxonomicName id="B4B44D63FFCDFFCBFF7DD77DFD812772" authorityName="West &amp; G. S. West" authorityYear="1907" box="[136,571,808,833]" class="Conjugatophyceae" family="Desmidiaceae" genus="Euastrum" kingdom="Plantae" order="Zygnematales" pageId="5" pageNumber="190" phylum="Charophyta" rank="variety" species="coralloides" variety="subintegrum">
<emphasis id="41C0EAF2FFCDFFCBFF7DD77DFEC32772" box="[136,377,808,833]" italics="true" pageId="5" pageNumber="190">Euastrum coralloides</emphasis>
var.
<emphasis id="41C0EAF2FFCDFFCBFE5AD77DFD812772" box="[431,571,808,833]" italics="true" pageId="5" pageNumber="190">subintegrum</emphasis>
</taxonomicName>
), although the central inflation is generally composed of 3 granules instead of a single large and smooth granule as in Asian specimens. That inflation having 3 verrucae was only seen by SEM, as the inflation always appeared to be simply one large spherical protrusion under
<collectionCode id="15A5AE25FFCDFFCBFC17D725FBAA27BA" box="[994,1040,880,905]" country="Mozambique" lsid="urn:lsid:biocol.org:col:13988" name="Secçáo de Botânica e Ecologia" pageId="5" pageNumber="190" type="Herbarium">LM</collectionCode>
.
<taxonomicName id="B4B44D63FFCDFFCBFBEFD725FA9627BA" box="[1050,1324,880,905]" class="Conjugatophyceae" family="Desmidiaceae" genus="Euastrum" kingdom="Plantae" order="Zygnematales" pageId="5" pageNumber="190" phylum="Charophyta" rank="species" species="octogibbosum">
<emphasis id="41C0EAF2FFCDFFCBFBEFD725FA9627BA" box="[1050,1324,880,905]" italics="true" pageId="5" pageNumber="190">Euastrum octogibbosum</emphasis>
</taxonomicName>
is reported here for the first time for
<collectingCountry id="0BA37670FFCDFFCBFE50D7C1FE57279E" box="[421,493,916,941]" name="Brazil" pageId="5" pageNumber="190">Brazil</collectingCountry>
.
</paragraph>
</subSubSection>
</treatment>
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