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<document id="ED149C5EA824CC8E5225B13406D98E02" ID-DOI="10.11646/phytotaxa.483.3.9" ID-ISSN="1179-3163" ID-Zenodo-Dep="5420996" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" checkinTime="1630378035239" checkinUser="marcus" docAuthor="Ramos, Geraldo José Peixoto, Santos, Maria Aparecida Dos &amp; Moura, Carlos Wallace Do Nascimento" docDate="2021" docId="6F25BE4935040D345EE58F1E42A1F9B8" docLanguage="en" docName="phytotaxa.483.3.9.pdf" docOrigin="Phytotaxa 483 (3)" docSource="http://dx.doi.org/10.11646/phytotaxa.483.3.9" docStyle="DocumentStyle:96748F8F1B6C902996E134952A3A36B9.7:Phytotaxa.2014-.journal_article" docStyleId="96748F8F1B6C902996E134952A3A36B9" docStyleName="Phytotaxa.2014-.journal_article" docStyleVersion="7" docTitle="Cosmarium trinodulum var. brasiliense Borge. With 1899" docType="treatment" docVersion="4" lastPageNumber="297" masterDocId="931CC63135020D325E6D8C544138FF8C" masterDocTitle="Taxonomic notes on some Cosmarium species (Desmidiaceae, Zygnematophyceae) from Brazil" masterLastPageNumber="299" masterPageNumber="291" pageNumber="297" updateTime="1699252643544" updateUser="plazi" zenodo-license-figures="UNSPECIFIED" zenodo-license-treatments="UNSPECIFIED">
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<mods:title id="36D9C89215A647AC2904F13A59D9BBC9">Taxonomic notes on some Cosmarium species (Desmidiaceae, Zygnematophyceae) from Brazil</mods:title>
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<mods:namePart id="962C9005694022EFCCC43F2AB9958817">Ramos, Geraldo José Peixoto</mods:namePart>
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<mods:affiliation id="C2832D0BB60590471220613D614E06E5">Programa de Pós-Graduação em Botânica, Universidade Estadual de Feira de Santana, Av. Transnordestina, s / nº, Novo Horizonte, 44036 - 900, Feira de Santana, BA, Brazil. &amp; geraldojpr @ gmail. com; https: // orcid. org / 0000 - 0003 - 2089 - 0461</mods:affiliation>
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<mods:namePart id="84088C0C0DB9CF87A550500EDAE05238">Santos, Maria Aparecida Dos</mods:namePart>
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<mods:affiliation id="A26A293823EE7A8DAFEC254D6D7B8131">Programa de Pós-Graduação em Botânica, Universidade Estadual de Feira de Santana, Av. Transnordestina, s / nº, Novo Horizonte, 44036 - 900, Feira de Santana, BA, Brazil. &amp; maria. asbio @ hotmail. com; https: // orcid. org / 0000 - 0001 - 9354 - 7192</mods:affiliation>
<mods:nameIdentifier id="2DC98A8371CE38996B0EB78D380A8822" type="email">maria.asbio@hotmail.com</mods:nameIdentifier>
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<mods:namePart id="21B2C689D43BB3CBFF9C41F519E5F0E3">Moura, Carlos Wallace Do Nascimento</mods:namePart>
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<mods:affiliation id="260530AB862BEAE49265798D9436B6C5">Programa de Pós-Graduação em Botânica, Universidade Estadual de Feira de Santana, Av. Transnordestina, s / nº, Novo Horizonte, 44036 - 900, Feira de Santana, BA, Brazil. &amp; wallace @ uefs. br; https: // orcid. org / 0000 - 0001 - 6904 - 6603</mods:affiliation>
<mods:nameIdentifier id="49B3313C389D2BE8772047BB25C0B658" type="email">wallace@uefs.br</mods:nameIdentifier>
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<mods:date id="989757D82DE7EB6A41482B003C726ED5">2021</mods:date>
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<treatment id="6F25BE4935040D345EE58F1E42A1F9B8" ID-DOI="http://doi.org/10.5281/zenodo.6492958" ID-Zenodo-Dep="6492958" LSID="urn:lsid:plazi:treatment:6F25BE4935040D345EE58F1E42A1F9B8" httpUri="http://treatment.plazi.org/id/6F25BE4935040D345EE58F1E42A1F9B8" lastPageNumber="297" pageId="6" pageNumber="297">
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<paragraph id="E7330F5F35040D345EE58F1E42FAFCE9" blockId="6.[136,962,842,869]" box="[136,962,842,869]" pageId="6" pageNumber="297">
<heading id="BC7BB83335040D345EE58F1E42FAFCE9" box="[136,962,842,869]" fontSize="11" level="2" pageId="6" pageNumber="297" reason="3">
<treatmentCitationGroup id="C79C287135040D345EE58F1E42FAFCE9" box="[136,962,842,869]" pageId="6" pageNumber="297">
<treatmentCitation id="662D294E35040D345EE58F1E4236FCE8" author="Borge, O." box="[136,782,842,869]" page=")" pageId="6" pageNumber="297" year="1899">
<taxonomicName id="208C74DC35040D345EE58F1E4236FCE8" authority="Borge (1899: 20)" authorityName="Borge. With" authorityPageNumber="20" authorityYear="1899" box="[136,782,842,869]" class="Conjugatophyceae" family="Desmidiaceae" genus="Cosmarium" kingdom="Plantae" order="Zygnematales" pageId="6" pageNumber="297" phylum="Charophyta" rank="variety" species="trinodulum" variety="brasiliense">
<emphasis id="D5F8D34D35040D345EE58F1E40A1FCE9" bold="true" box="[136,409,842,869]" italics="true" pageId="6" pageNumber="297">Cosmarium trinodulum</emphasis>
var.
<emphasis id="D5F8D34D35040D345FBF8F1E4376FCE9" bold="true" box="[466,590,842,869]" italics="true" pageId="6" pageNumber="297">brasiliense</emphasis>
<bibRefCitation id="831D72AE35040D345C388F1F4236FCE8" author="Borge, O." box="[597,782,842,869]" pageId="6" pageNumber="297" pagination="1 - 33" refId="ref4534" refString="Borge, O. (1899) Ueber tropische und subtropische Susswasser-Chlorophyceen. Bihang til Kongliga Svenska Vetenskaps-Akademiens Handlingar 24 (Afd. III, 12): 1 - 33." type="journal article" year="1899">Borge (1899:20)</bibRefCitation>
</taxonomicName>
</treatmentCitation>
(
<figureCitation id="7FB713DA35040D345D738F1E425EFCE9" box="[798,870,842,869]" captionStart="FIGURES 1–8" captionStartId="2.[136,243,2002,2024]" captionTargetBox="[178,1409,278,1974]" captionTargetId="figure-69@2.[178,1409,278,1974]" captionTargetPageId="2" captionText="FIGURES 1–8. Line drawings. 1. Cosmarium boeckii var.areolatum 2. C. clepsydra var. incrassatum 3. C. heptangulare 4. C. kanetsunae 5. C. pygmaeum 6. C. trinodulum 7. C. trinodulum var. brasiliense 8. C. trinodulum var. pilgeri." figureDoi="http://doi.org/10.5281/zenodo.5420998" httpUri="https://zenodo.org/record/5420998/files/figure.png" pageId="6" pageNumber="297">Figs 7</figureCitation>
,
<figureCitation id="7FB713DA35040D345D1F8F1E4282FCE9" box="[882,954,842,869]" captionStart="FIGURES 33–59" captionStartId="5.[136,243,1820,1842]" captionTargetBox="[223,1341,208,1781]" captionTargetId="figure-18@5.[209,1377,190,1795]" captionTargetPageId="5" captionText="FIGURES 33–59. LM and SEM. 33–38. Cosmarium pygmaeum: LM (33–37), SEM (38), frontal view (33–35), lateral view (36), apical view (37), 39–45. C. trinodulum: LM (39–44), SEM (45): frontal view (39–42, 45), lateral view (43), apical view (44), 46–54. C. trinodulum var. brasiliense: LM (46–53), SEM (54), frontal view (46–50, 54), lateral view (51), apical view (52, 53), 55–59. C. trinodulum var. pilgeri: frontal view (55–57, 57—Cell division), lateral view (58), apical view (59). Scale bar: 10 μm, except Fig. 38 (2 μm)." figureDoi="http://doi.org/10.5281/zenodo.5421002" httpUri="https://zenodo.org/record/5421002/files/figure.png" pageId="6" pageNumber="297">46–54</figureCitation>
)
</treatmentCitationGroup>
</heading>
</paragraph>
<paragraph id="E7330F5F35040D345EE58FC6450AFC21" blockId="6.[136,1452,914,1589]" box="[136,1074,914,941]" pageId="6" pageNumber="297">
<emphasis id="D5F8D34D35040D345EE58FC64077FC20" bold="true" box="[136,335,914,940]" pageId="6" pageNumber="297">Cell dimensions:</emphasis>
length 35–39 μm, breadth 29–30 μm, breadth of isthmus 8–9 μm.
</paragraph>
</subSubSection>
<subSubSection id="AF965CD435040D345ED08FE242A1F9B8" pageId="6" pageNumber="297" type="materials_examined">
<paragraph id="E7330F5F35040D345ED08FE2407BFC78" blockId="6.[136,1452,914,1589]" pageId="6" pageNumber="297">
<emphasis id="D5F8D34D35040D345ED08FE2409EFC5C" bold="true" box="[189,422,950,976]" pageId="6" pageNumber="297">Material examined</emphasis>
:—
<collectingCountry id="9F9B4FCF35040D345FA58FE2430BFC5C" box="[456,563,950,976]" name="Brazil" pageId="6" pageNumber="297">BRAZIL</collectingCountry>
. Pantanal dos Marimbus, Andaraí,
<collectingRegion id="2548C1BD35040D345DB68FE2455DFC5C" box="[987,1125,950,976]" country="Brazil" name="Bahia" pageId="6" pageNumber="297">Bahia State</collectingRegion>
. Samples:
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242434,
<collectionCode id="819D979A35040D345EE58F8E41D9FC78" box="[136,225,986,1012]" 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="6" pageNumber="297" type="Herbarium">HUEFS</collectionCode>
241798.
</paragraph>
<paragraph id="E7330F5F35040D345ED08FAA439DFBB1" blockId="6.[136,1452,914,1589]" pageId="6" pageNumber="297">
<emphasis id="D5F8D34D35040D345ED08FAA4021FB94" bold="true" box="[189,281,1022,1048]" pageId="6" pageNumber="297">Habitat</emphasis>
:—This
<taxonomicName id="208C74DC35040D345F1A8FAA40C1FB95" box="[375,505,1022,1049]" pageId="6" pageNumber="297" rank="variety" variety="was">variety was</taxonomicName>
found associated with periphyton of
<emphasis id="D5F8D34D35040D345DCF8FAA4546FB94" box="[930,1150,1022,1048]" italics="true" pageId="6" pageNumber="297">
<taxonomicName id="208C74DC35040D345DCF8FAA4542FB94" box="[930,1146,1022,1048]" class="Magnoliopsida" family="Lentibulariaceae" genus="Utricularia" kingdom="Plantae" order="Lamiales" pageId="6" pageNumber="297" phylum="Tracheophyta" rank="species" species="foliosa">Utricularia foliosa</taxonomicName>
.
</emphasis>
EC 0.05 mS
<superScript id="10F9A21735040D345B758FAB4470FB80" attach="right" box="[1304,1352,1022,1049]" fontSize="6" pageId="6" pageNumber="297">cm-1</superScript>
,
<collectionCode id="819D979A35040D345B358FAA44B8FB94" box="[1368,1408,1022,1048]" country="France" lsid="urn:lsid:biocol.org:col:14073" name="Société d'Agriculture Sciences et Arts" pageId="6" pageNumber="297" type="Herbarium">DO</collectionCode>
<quantity id="2074A2BA35040D345BE58FAA4194FBB1" metricMagnitude="-6" metricUnit="kg" metricValue="6.8" pageId="6" pageNumber="297" unit="mg" value="6.8">6.8 mg</quantity>
L-
<superScript id="10F9A21735040D345EA7887641E9FBBC" attach="right" box="[202,209,1058,1072]" fontSize="6" pageId="6" pageNumber="297">1</superScript>
, pH 6.6, TDS 0.02,
<collectionCode id="819D979A35040D345FD9887740FDFBB1" box="[436,453,1059,1085]" name="Tavera, Department of Geology and Geophysics" pageId="6" pageNumber="297">T</collectionCode>
27.8 ºC, WT
<quantity id="2074A2BA35040D345C3388764399FBB1" box="[606,673,1058,1085]" metricMagnitude="-1" metricUnit="m" metricValue="6.0" pageId="6" pageNumber="297" unit="m" value="0.6">0.6 m</quantity>
.
</paragraph>
<paragraph id="E7330F5F35040D345ED0881242C5FB25" blockId="6.[136,1452,914,1589]" pageId="6" pageNumber="297">
<emphasis id="D5F8D34D35040D345ED0881241CDFBEC" bold="true" box="[189,245,1094,1120]" pageId="6" pageNumber="297">Note</emphasis>
:—
<materialsCitation id="57E4050235040D345F7A881242C1FB25" country="Brazil" location="Rio de Janeiro" pageId="6" pageNumber="297" specimenCount="1" stateProvince="Rio de Janeiro">
This
<taxonomicName id="208C74DC35040D345F3C881240D6FBEC" box="[337,494,1094,1120]" pageId="6" pageNumber="297" rank="variety" variety="differs">variety differs</taxonomicName>
from the nominate variety by having cells with 3 horizontal series of granules (5-5-3). The latter series next to isthmus has 3 granules, whereas the median and subapical ones have 5 granules. It is rather rare variety, only known till now from its
<typeStatus id="3837B1FD35040D345C3088DB43B5FB25" box="[605,653,1167,1193]" pageId="6" pageNumber="297">type</typeStatus>
locality (
<collectingRegion id="2548C1BD35040D345C9A88DA42A5FB24" box="[759,925,1166,1192]" country="Brazil" name="Rio de Janeiro" pageId="6" pageNumber="297">Rio de Janeiro</collectingRegion>
,
<collectingCountry id="9F9B4FCF35040D345DC588DA42C9FB25" box="[936,1009,1166,1193]" name="Brazil" pageId="6" pageNumber="297">Brazil</collectingCountry>
)
</materialsCitation>
.
</paragraph>
<paragraph id="E7330F5F35040D345ED088E6429AFA0D" blockId="6.[136,1452,914,1589]" pageId="6" pageNumber="297">
Unlike the
<typeStatus id="3837B1FD35040D345F5088E74055FB41" box="[317,365,1203,1229]" pageId="6" pageNumber="297">type</typeStatus>
variety, the
<taxonomicName id="208C74DC35040D345F9188E74391FB40" authorityName="Borge. With" authorityYear="1899" box="[508,681,1202,1229]" class="Conjugatophyceae" family="Desmidiaceae" genus="Cosmarium" kingdom="Plantae" order="Zygnematales" pageId="6" pageNumber="297" phylum="Charophyta" rank="variety" species="trinodulum" variety="brasiliense">
var.
<emphasis id="D5F8D34D35040D345C4388E64391FB40" box="[558,681,1202,1228]" italics="true" pageId="6" pageNumber="297">brasiliense</emphasis>
</taxonomicName>
rarely was found in the Marimbus. Still, we noticed a considerable morphological variation in the specimens of this
<taxonomicName id="208C74DC35040D345CD988824278FB7C" box="[692,832,1238,1264]" pageId="6" pageNumber="297" rank="variety" variety="from">variety from</taxonomicName>
that area, mainly in the cell outline and in the number of granules. The basal margins ranged from rounded to crenate (
<figureCitation id="7FB713DA35040D345D3E88AE42A0FA99" box="[851,920,1274,1301]" captionStart="FIGURES 1–8" captionStartId="2.[136,243,2002,2024]" captionTargetBox="[178,1409,278,1974]" captionTargetId="figure-69@2.[178,1409,278,1974]" captionTargetPageId="2" captionText="FIGURES 1–8. Line drawings. 1. Cosmarium boeckii var.areolatum 2. C. clepsydra var. incrassatum 3. C. heptangulare 4. C. kanetsunae 5. C. pygmaeum 6. C. trinodulum 7. C. trinodulum var. brasiliense 8. C. trinodulum var. pilgeri." figureDoi="http://doi.org/10.5281/zenodo.5420998" httpUri="https://zenodo.org/record/5420998/files/figure.png" pageId="6" pageNumber="297">Fig. 7</figureCitation>
). The specimens with the first pattern generally have 1–2 arched series of granules, whereas the crenate ones have 2–3 series. Sometimes the series of 3 granules, next to the isthmus, is somewhat difficult to observe or even be lacking. We did not observe the connections between the granules in
<collectionCode id="819D979A35040D345F6689334000FA0D" box="[267,312,1383,1409]" country="Mozambique" lsid="urn:lsid:biocol.org:col:13988" name="Secçáo de Botânica e Ecologia" pageId="6" pageNumber="297" type="Herbarium">LM</collectionCode>
; however, some remnants are visible in SEM (
<figureCitation id="7FB713DA35040D345D2C893242ADFA0D" box="[833,917,1382,1409]" captionStart="FIGURES 33–59" captionStartId="5.[136,243,1820,1842]" captionTargetBox="[223,1341,208,1781]" captionTargetId="figure-18@5.[209,1377,190,1795]" captionTargetPageId="5" captionText="FIGURES 33–59. LM and SEM. 33–38. Cosmarium pygmaeum: LM (33–37), SEM (38), frontal view (33–35), lateral view (36), apical view (37), 39–45. C. trinodulum: LM (39–44), SEM (45): frontal view (39–42, 45), lateral view (43), apical view (44), 46–54. C. trinodulum var. brasiliense: LM (46–53), SEM (54), frontal view (46–50, 54), lateral view (51), apical view (52, 53), 55–59. C. trinodulum var. pilgeri: frontal view (55–57, 57—Cell division), lateral view (58), apical view (59). Scale bar: 10 μm, except Fig. 38 (2 μm)." figureDoi="http://doi.org/10.5281/zenodo.5421002" httpUri="https://zenodo.org/record/5421002/files/figure.png" pageId="6" pageNumber="297">Fig. 54</figureCitation>
).
</paragraph>
<paragraph id="E7330F5F35040D345ED089DE42A1F9B8" blockId="6.[136,1452,914,1589]" pageId="6" pageNumber="297">
<bibRefCitation id="831D72AE35040D345ED089DE405BFA28" author="Gerrath, J. F." box="[189,355,1418,1444]" pageId="6" pageNumber="297" pagination="211 - 217" refId="ref4831" refString="Gerrath, J. F. (1979) Polymorphism in the desmid Cosmarium taxichondrum Lundell. British Phycological Journal 14: 211 - 217. https: // doi. org / 10.1080 / 00071617900650231" type="journal article" year="1979">Gerrath (1979)</bibRefCitation>
studied the polymorphism in a population of
<taxonomicName id="208C74DC35040D345D3E89DF4476FA28" authority="Lundell (1871: 39)" authorityName="Lundell" authorityPageNumber="39" authorityYear="1871" box="[851,1358,1418,1445]" class="Conjugatophyceae" family="Desmidiaceae" genus="Cosmarium" kingdom="Plantae" order="Zygnematales" pageId="6" pageNumber="297" phylum="Charophyta" rank="species" species="taxichondrum">
<emphasis id="D5F8D34D35040D345D3E89DF454FFA28" box="[851,1143,1418,1445]" italics="true" pageId="6" pageNumber="297">Cosmarium taxichondrum</emphasis>
<bibRefCitation id="831D72AE35040D345A1189DE4476FA28" author="Lundell, P. M." box="[1148,1358,1418,1444]" pageId="6" pageNumber="297" pagination="1 - 100" refId="ref5115" refString="Lundell, P. M. (1871) De Desmidiaceis, quae in Suecia inventae sunt, observationes criticae. Nova Acta Regiae Societatis Scientiarum Upsaliensis, ser. 3 8 (2): 1 - 100." type="journal article" year="1871">Lundell (1871: 39)</bibRefCitation>
</taxonomicName>
, another interesting species, remarkable by its set of granules. He noticed also a great variation in the granules arrangement, which some of them may even occasionally be lacking, such as our observations in
<taxonomicName id="208C74DC35040D345A228987449FFA60" authorityName="Borge. With" authorityYear="1899" box="[1103,1447,1490,1517]" class="Conjugatophyceae" family="Desmidiaceae" genus="Cosmarium" kingdom="Plantae" order="Zygnematales" pageId="6" pageNumber="297" phylum="Charophyta" rank="variety" species="trinodulum" variety="brasiliense">
<emphasis id="D5F8D34D35040D345A22898745D6FA60" box="[1103,1262,1490,1517]" italics="true" pageId="6" pageNumber="297">C. trinodulum</emphasis>
var.
<emphasis id="D5F8D34D35040D345B448986449FFA60" box="[1321,1447,1490,1516]" italics="true" pageId="6" pageNumber="297">brasiliense</emphasis>
</taxonomicName>
<emphasis id="D5F8D34D35040D345BC589864494FA60" box="[1448,1452,1490,1516]" italics="true" pageId="6" pageNumber="297">.</emphasis>
Apparently, the subapical series is the most consistent feature of this variety, at least it was observed in all specimens examined, whereas the series located next to isthmus is most variable.
</paragraph>
</subSubSection>
</treatment>
</document>
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