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<document id="2DFB65D8F89AF2DCF8DEEC8F66F25204" 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="FB1D87F6FFCDFFCBFF7DD789FF4722DA" 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 piataense G. J. P. Ramos &amp; C. W. N. Moura 2019, sp. nov." 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="7EC1FB820FA098C8C2CC01279AC6D528">Taxonomic novelties, new records, and rare species of desmids from the Chapada Diamantina region, Brazil</mods:title>
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<mods:namePart id="19C1F0C3CA45C9AF288B08EB8BEE906C">Ramos, Geraldo José Peixoto</mods:namePart>
<mods:affiliation id="B7BC7AC20BD337750E80E4A32D67F38E">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="A76A4EC4F39E48210A2ED587A3819F3C">Costa, Fabiana De Matos</mods:namePart>
<mods:affiliation id="8F2CD1CE8943DD9544D251990C1C2477">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="70816A052F4462D8A27D31A5959092B8">Santos, Maria Aparecida Dos</mods:namePart>
<mods:affiliation id="856FAC7F8B83991CEAC9A5D2D4C2B82D">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="CC320BEECBDCA3457E3143D833A7123F">Moura, Carlos Wallace Do Nascimento</mods:namePart>
<mods:affiliation id="1511E76DE96D6DA8AC8F61FC539A2B53">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:title id="EDA0B1041A616A3B83D5BDD5C389ED04">Phytotaxa</mods:title>
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<mods:date id="8D624A0F3D9BBF24E10B627947850EAA">2019</mods:date>
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<treatment id="FB1D87F6FFCDFFCBFF7DD789FF4722DA" LSID="urn:lsid:plazi:treatment:FB1D87F6FFCDFFCBFF7DD789FF4722DA" httpUri="http://treatment.plazi.org/id/FB1D87F6FFCDFFCBFF7DD789FF4722DA" lastPageNumber="190" pageId="5" pageNumber="190">
<subSubSection id="3BAE656BFFCDFFCBFF7DD789FBBD20FE" pageId="5" pageNumber="190" type="nomenclature">
<paragraph id="730B36E0FFCDFFCBFF7DD789FC7A27C6" blockId="5.[136,960,988,1013]" box="[136,960,988,1013]" pageId="5" pageNumber="190">
<heading id="2843818CFFCDFFCBFF7DD789FC7A27C6" box="[136,960,988,1013]" fontSize="11" level="2" pageId="5" pageNumber="190" reason="3">
<taxonomicName id="B4B44D63FFCDFFCBFF7DD789FD7027C6" authority="G.J.P.Ramos &amp; C.W.N.Moura" authorityName="G. J. P. Ramos &amp; C. W. N. Moura" authorityYear="2019" box="[136,714,988,1013]" class="Conjugatophyceae" family="Desmidiaceae" genus="Euastrum" kingdom="Plantae" order="Zygnematales" pageId="5" pageNumber="190" phylum="Charophyta" rank="species" species="piataense" status="sp. nov.">
<emphasis id="41C0EAF2FFCDFFCBFF7DD789FED527C6" bold="true" box="[136,367,988,1013]" italics="true" pageId="5" pageNumber="190">Euastrum piataense</emphasis>
G.J.P.Ramos &amp; C.W.N.Moura
</taxonomicName>
,
<emphasis id="41C0EAF2FFCDFFCBFD20D789FC9027C6" box="[725,810,988,1013]" italics="true" pageId="5" pageNumber="190">
<taxonomicNameLabel id="5AF35789FFCDFFCBFD20D789FC9027C6" box="[725,810,988,1013]" pageId="5" pageNumber="190" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
(
<figureCitation id="EB8F2A65FFCDFFCBFCCDD789FC0227C6" box="[824,952,988,1013]" captionStart="FIGURES 2850" captionStartId="6.[136,243,1862,1883]" captionTargetBox="[198,1398,317,1825]" captionTargetId="figure-78@6.[178,1410,317,1837]" captionTargetPageId="6" captionText="FIGURES 2850. Euastrum piataense (2834): LM (2831), SEM (33,34), ventral view (2830, 33), lateral view (31,34) apical view (32); Euastrum subcyclopicum var. elongatum (3539): LM (3538), SEM (39), ventral view (3536, 39), lateral view (37), apical view (38); Euastrum bicudoi (4042): ventral view (40), lateral view (41), apical view (42); Euastrum subtrilobulatum var. laeve (Figs 4346): ventral view (43,44), lateral view (45), apical view (46); Micrasterias arcuata var. perforata (4750): LM (4749), SEM (50), zygospore (49). Scale bar 10 μm." figureDoi="http://doi.org/10.5281/zenodo.13726476" httpUri="https://zenodo.org/record/13726476/files/figure.png" pageId="5" pageNumber="190">Figs 2834</figureCitation>
)
</heading>
</paragraph>
<paragraph id="730B36E0FFCDFFCBFF7DD071FBBD20FE" blockId="5.[136,1452,1060,1769]" pageId="5" pageNumber="190">Cells somewhat longer than wide; semicells pyramidal with concave sides; median constriction deep with sinus closed; apical incision open, U-shaped; basal and apical lobes ornamented with spines, apical angles with 12 spines; cell wall finely scrobiculate, with 2 spines near the margins of the basal lobes, a pronounced central protuberance, circular; 2 converging scrobicles in the mid-region; chloroplast with two pyrenoids. Zygospore not observed. Cell dimensions: length 7080 μm, breadth 5060 μm, apical lobe 3036 μm, isthmus 1416 um.</paragraph>
</subSubSection>
<subSubSection id="3BAE656BFFCDFFCBFF48D08DFBDB2126" pageId="5" pageNumber="190" type="materials_examined">
<paragraph id="730B36E0FFCDFFCBFF48D08DFBDB2126" blockId="5.[136,1452,1060,1769]" pageId="5" pageNumber="190">
<materialsCitation id="C3DC3CBDFFCDFFCBFF48D08DFBDB2126" collectionCode="LM" location="Herbario da Universidade Estadual de Feira de Santana" pageId="5" pageNumber="190" specimenCode="HUEFS 244149" specimenCount="1" typeStatus="holotype">
<emphasis id="41C0EAF2FFCDFFCBFF48D08DFE8E20C2" bold="true" box="[189,308,1240,1265]" pageId="5" pageNumber="190">
<typeStatus id="AC0F8842FFCDFFCBFF48D08DFE9420C2" box="[189,302,1240,1265]" pageId="5" pageNumber="190" type="holotype">Holotype</typeStatus>
:
</emphasis>
material numbered (
<specimenCode id="23129E9BFFCDFFCBFDD0D08DFD5E20C2" box="[549,740,1240,1265]" collectionCode="HUEFS" 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 244149</specimenCode>
!) deposited at
<location id="766B603BFFCDFFCBFC78D08DFF592126" LSID="urn:lsid:plazi:treatment:FB1D87F6FFCDFFCBFF7DD789FF4722DA:766B603BFFCDFFCBFC78D08DFF592126" name="Herbario da Universidade Estadual de Feira de Santana" pageId="5" pageNumber="190">Herbário da Universidade Estadual de Feira de Santana</location>
, population partially illustrated here in
<collectionCode id="15A5AE25FFCDFFCBFD68D0A9FD7D2126" box="[669,711,1276,1301]" country="Mozambique" lsid="urn:lsid:biocol.org:col:13988" name="Secçáo de Botânica e Ecologia" pageId="5" pageNumber="190" type="Herbarium">LM</collectionCode>
(
<figureCitation id="EB8F2A65FFCDFFCBFD23D0A9FCEF2126" box="[726,853,1276,1301]" captionStart="FIGURES 2850" captionStartId="6.[136,243,1862,1883]" captionTargetBox="[198,1398,317,1825]" captionTargetId="figure-78@6.[178,1410,317,1837]" captionTargetPageId="6" captionText="FIGURES 2850. Euastrum piataense (2834): LM (2831), SEM (33,34), ventral view (2830, 33), lateral view (31,34) apical view (32); Euastrum subcyclopicum var. elongatum (3539): LM (3538), SEM (39), ventral view (3536, 39), lateral view (37), apical view (38); Euastrum bicudoi (4042): ventral view (40), lateral view (41), apical view (42); Euastrum subtrilobulatum var. laeve (Figs 4346): ventral view (43,44), lateral view (45), apical view (46); Micrasterias arcuata var. perforata (4750): LM (4749), SEM (50), zygospore (49). Scale bar 10 μm." figureDoi="http://doi.org/10.5281/zenodo.13726476" httpUri="https://zenodo.org/record/13726476/files/figure.png" pageId="5" pageNumber="190">Figs 2832</figureCitation>
) and SEM (
<figureCitation id="EB8F2A65FFCDFFCBFC28D0A9FBE32126" box="[989,1113,1276,1301]" captionStart="FIGURES 2850" captionStartId="6.[136,243,1862,1883]" captionTargetBox="[198,1398,317,1825]" captionTargetId="figure-78@6.[178,1410,317,1837]" captionTargetPageId="6" captionText="FIGURES 2850. Euastrum piataense (2834): LM (2831), SEM (33,34), ventral view (2830, 33), lateral view (31,34) apical view (32); Euastrum subcyclopicum var. elongatum (3539): LM (3538), SEM (39), ventral view (3536, 39), lateral view (37), apical view (38); Euastrum bicudoi (4042): ventral view (40), lateral view (41), apical view (42); Euastrum subtrilobulatum var. laeve (Figs 4346): ventral view (43,44), lateral view (45), apical view (46); Micrasterias arcuata var. perforata (4750): LM (4749), SEM (50), zygospore (49). Scale bar 10 μm." figureDoi="http://doi.org/10.5281/zenodo.13726476" httpUri="https://zenodo.org/record/13726476/files/figure.png" pageId="5" pageNumber="190">Fig. 3334</figureCitation>
)
</materialsCitation>
</paragraph>
</subSubSection>
<subSubSection id="3BAE656BFFCDFFCBFF48D175FCB5210A" box="[189,783,1312,1337]" pageId="5" pageNumber="190" type="etymology">
<paragraph id="730B36E0FFCDFFCBFF48D175FCB5210A" blockId="5.[136,1452,1060,1769]" box="[189,783,1312,1337]" pageId="5" pageNumber="190">
<emphasis id="41C0EAF2FFCDFFCBFF48D175FEF2210A" bold="true" box="[189,328,1312,1337]" pageId="5" pageNumber="190">Etymology:</emphasis>
The epithet refers to Piatã,
<typeStatus id="AC0F8842FFCDFFCBFD8BD175FD14210A" box="[638,686,1312,1337]" pageId="5" pageNumber="190">type</typeStatus>
locality.
</paragraph>
</subSubSection>
<subSubSection id="3BAE656BFFCDFFCBFF48D111FF4722DA" pageId="5" pageNumber="190" type="materials_examined">
<paragraph id="730B36E0FFCDFFCBFF48D111FD5C21FA" blockId="5.[136,1452,1060,1769]" pageId="5" pageNumber="190">
<emphasis id="41C0EAF2FFCDFFCBFF48D111FD16216E" bold="true" box="[189,684,1348,1373]" pageId="5" pageNumber="190">Type locality and habitat characteristics:</emphasis>
<materialsCitation id="C3DC3CBDFFCDFFCBFD40D111FB8E2196" collectingDate="2017-07-13" collectionCode="G, J, P, C, W, N, F, M, A" country="Brazil" county="Costa" latitude="-13.096666" location="Piata" longLatPrecision="21" longitude="-41.850555" municipality="Moura" pageId="5" pageNumber="190" specimenCode="HUEFS 244149" specimenCount="1" stateProvince="Bahia">
Collected at “Barragem do Dragão”
<location id="766B603BFFCDFFCBFBA3D111FB2B216E" LSID="urn:lsid:plazi:treatment:FB1D87F6FFCDFFCBFF7DD789FF4722DA:766B603BFFCDFFCBFBA3D111FB2B216E" box="[1110,1169,1348,1373]" country="Brazil" county="Costa" latitude="-13.096666" longLatPrecision="21" longitude="-41.850555" municipality="Moura" name="Piata" pageId="5" pageNumber="190" stateProvince="Bahia">Piatã</location>
,
<collectingRegion id="B170F802FFCDFFCBFB6BD111FAA4216E" box="[1182,1310,1348,1373]" country="Brazil" name="Bahia" pageId="5" pageNumber="190">Bahia state</collectingRegion>
,
<collectingCountry id="0BA37670FFCDFFCBFADED111FAC9216E" box="[1323,1395,1348,1373]" name="Brazil" pageId="5" pageNumber="190">Brazil</collectingCountry>
. Lat.
<geoCoordinate id="16805027FFCDFFCBFF7DD13DFE9921B2" box="[136,291,1384,1409]" degrees="13" direction="south" minutes="05" orientation="latitude" pageId="5" pageNumber="190" precision="15" seconds="48" value="-13.096666">13° 05 48” S</geoCoordinate>
, Long.
<geoCoordinate id="16805027FFCDFFCBFE8ED13DFD9A21B2" box="[379,544,1384,1409]" degrees="41" direction="west" minutes="51" orientation="longitude" pageId="5" pageNumber="190" precision="15" seconds="02" value="-41.850555">41° 51 02” W</geoCoordinate>
.
<location id="766B603BFFCDFFCBFDDED13DFDC521B2" LSID="urn:lsid:plazi:treatment:FB1D87F6FFCDFFCBFF7DD789FF4722DA:766B603BFFCDFFCBFDDED13DFDC521B2" box="[555,639,1384,1409]" country="Brazil" county="Costa" latitude="-13.096666" longLatPrecision="21" longitude="-41.850555" municipality="Moura" name="Sample" pageId="5" pageNumber="190" stateProvince="Bahia">Sample</location>
collected by
<collectionCode id="15A5AE25FFCDFFCBFCEDD13DFC9721B2" box="[792,813,1384,1409]" country="Switzerland" lsid="urn:lsid:biocol.org:col:15706" name="Conservatoire et Jardin botaniques de la Ville de Genève" pageId="5" pageNumber="190" type="Herbarium">G</collectionCode>
.
<collectionCode id="15A5AE25FFCDFFCBFCC4D13DFC8621B2" box="[817,828,1384,1409]" country="South Africa" lsid="urn:lsid:biocol.org:col:14647" name="University of the Witwatersrand" pageId="5" pageNumber="190" type="Herbarium">J</collectionCode>
.
<collectionCode id="15A5AE25FFCDFFCBFCCAD13DFCEA21B2" box="[831,848,1384,1409]" country="France" lsid="urn:lsid:biocol.org:col:15763" name="Museum National d' Histoire Naturelle, Paris (MNHN) - Vascular Plants" pageId="5" pageNumber="190" type="Herbarium">P</collectionCode>
.
<location id="766B603BFFCDFFCBFCA1D13DFC1321B2" LSID="urn:lsid:plazi:treatment:FB1D87F6FFCDFFCBFF7DD789FF4722DA:766B603BFFCDFFCBFCA1D13DFC1321B2" box="[852,937,1384,1409]" country="Brazil" county="Costa" latitude="-13.096666" longLatPrecision="21" longitude="-41.850555" municipality="Moura" name="Ramos" pageId="5" pageNumber="190" stateProvince="Bahia">Ramos</location>
,
<collectionCode id="15A5AE25FFCDFFCBFC40D13DFC7321B2" box="[949,969,1384,1409]" country="Denmark" name="University of Copenhagen" pageId="5" pageNumber="190" type="Herbarium">C</collectionCode>
.
<collectionCode id="15A5AE25FFCDFFCBFC39D13DFC5021B2" box="[972,1002,1384,1409]" country="Austria" lsid="urn:lsid:biocol.org:col:15588" name="Naturhistorisches Museum Wien" pageId="5" pageNumber="190" type="Herbarium">W</collectionCode>
.
<collectionCode id="15A5AE25FFCDFFCBFC1BD13DFBBF21B2" box="[1006,1029,1384,1409]" country="China" lsid="urn:lsid:biocol.org:col:13092" name="Nanjing University" pageId="5" pageNumber="190" type="Herbarium">N</collectionCode>
.
<collectingMunicipality id="936FAC9AFFCDFFCBFBE5D13DFBE421B2" box="[1040,1118,1384,1409]" pageId="5" pageNumber="190">Moura</collectingMunicipality>
,
<collectionCode id="15A5AE25FFCDFFCBFB9FD13DFBC121B2" box="[1130,1147,1384,1409]" country="USA" lsid="urn:lsid:biocol.org:col:15707" name="Field Museum of Natural History, Botany Department" pageId="5" pageNumber="190" type="Herbarium">F</collectionCode>
.
<collectionCode id="15A5AE25FFCDFFCBFB8AD13DFB2121B2" box="[1151,1179,1384,1409]" country="Germany" lsid="urn:lsid:biocol.org:col:15637" name="Botanische Staatssammlung München" pageId="5" pageNumber="190" type="Herbarium">M</collectionCode>
.
<collectingCounty id="9A6A4E6CFFCDFFCBFB53D13DFB5C21B2" box="[1190,1254,1384,1409]" pageId="5" pageNumber="190">Costa</collectingCounty>
and
<collectionCode id="15A5AE25FFCDFFCBFAEBD13DFA8121B2" box="[1310,1339,1384,1409]" country="Germany" lsid="urn:lsid:biocol.org:col:15637" name="Botanische Staatssammlung München" pageId="5" pageNumber="190" type="Herbarium">M</collectionCode>
.
<collectionCode id="15A5AE25FFCDFFCBFACBD13DFAEF21B2" box="[1342,1365,1384,1409]" country="USA" lsid="urn:lsid:biocol.org:col:15406" name="Harvard University - Arnold Arboretum" pageId="5" pageNumber="190" type="Herbarium">A</collectionCode>
. Santos s/n (
<specimenCode id="23129E9BFFCDFFCBFF4DD1D9FECA2196" box="[184,368,1420,1445]" collectionCode="HUEFS" 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 244149</specimenCode>
) on
<date id="070A1020FFCDFFCBFE57D1D9FD8D2196" box="[418,567,1420,1445]" pageId="5" pageNumber="190" value="2017-07-13">
<collectingDate id="174EE9C8FFCDFFCBFE57D1D9FD8D2196" box="[418,567,1420,1445]" pageId="5" pageNumber="190" value="2017-07-13">13 July 2017</collectingDate>
</date>
.
<taxonomicName id="B4B44D63FFCDFFCBFDB7D1D9FC932196" authorityName="G. J. P. Ramos &amp; C. W. N. Moura" authorityYear="2019" box="[578,809,1420,1445]" class="Conjugatophyceae" family="Desmidiaceae" genus="Euastrum" kingdom="Plantae" order="Zygnematales" pageId="5" pageNumber="190" phylum="Charophyta" rank="species" species="piataense">
<emphasis id="41C0EAF2FFCDFFCBFDB7D1D9FC932196" bold="true" box="[578,809,1420,1445]" italics="true" pageId="5" pageNumber="190">Euastrum piataense</emphasis>
</taxonomicName>
occurred in periphyton
</materialsCitation>
; water temperature 21ºC, pH 7.8, conductivity 10 μS.
<superScript id="84C19BA8FFCDFFCBFEAAD1E5FE29218F" attach="left" box="[351,403,1454,1481]" fontSize="6" pageId="5" pageNumber="190">cm-1</superScript>
, dissolved oxygen
<quantity id="B44C9B05FFCDFFCBFD99D1E5FD0621FA" box="[620,700,1456,1481]" metricMagnitude="-6" metricUnit="kg" metricValue="9.2" pageId="5" pageNumber="190" unit="mg" value="9.2">9.2 mg</quantity>
.L-
<superScript id="84C19BA8FFCDFFCBFD2DD1FBFD65218F" attach="right" box="[728,735,1454,1468]" fontSize="6" pageId="5" pageNumber="190">1</superScript>
.
</paragraph>
<paragraph id="730B36E0FFCDFFCBFF48D181FBF3226A" blockId="5.[136,1452,1060,1769]" pageId="5" pageNumber="190">
<emphasis id="41C0EAF2FFCDFFCBFF48D181FEB321DE" bold="true" box="[189,265,1492,1517]" pageId="5" pageNumber="190">Notes:</emphasis>
At first glance, this new species closely resembles
<taxonomicName id="B4B44D63FFCDFFCBFC9ED181FEB12222" authority="(Nordstedt) West &amp; G. S. West (1896: 243)" authorityName="West &amp; G. S. West" authorityPageNumber="243" authorityYear="1896" baseAuthorityName="Nordstedt" class="Conjugatophyceae" family="Desmidiaceae" genus="Euastrum" kingdom="Plantae" order="Zygnematales" pageId="5" pageNumber="190" phylum="Charophyta" rank="species" species="evolutum">
<emphasis id="41C0EAF2FFCDFFCBFC9ED181FBF021DE" box="[875,1098,1492,1517]" italics="true" pageId="5" pageNumber="190">Euastrum evolutum</emphasis>
(Nordstedt) West &amp; G.S.
<bibRefCitation id="17254B11FFCDFFCBFA99D181FEB12222" author="West, W. &amp; West, G. S." pageId="5" pageNumber="190" pagination="229 - 274" refId="ref8139" refString="West, W. &amp; West, G. S. (1896) On some North America Desmidieae. Transactions of the Linnean Society of London Series 2, Botany, 5: 229 - 274. https: // doi. org / 10.1111 / j. 1095 - 8339.1896. tb 00269. x" type="journal article" year="1896">West (1896: 243)</bibRefCitation>
</taxonomicName>
and its forms. The latter species differs, however, by having a polar lobe with a deep, V-shaped incision, as well as semicells with deep interlobar incisions and three granules arranged in a circle in the mid-region.
<taxonomicName id="B4B44D63FFCDFFCBFAD0D249FA162206" authorityName="West &amp; G. S. West" authorityYear="1896" baseAuthorityName="Nordstedt" box="[1317,1452,1564,1589]" class="Conjugatophyceae" family="Desmidiaceae" genus="Euastrum" kingdom="Plantae" order="Zygnematales" pageId="5" pageNumber="190" phylum="Charophyta" rank="species" species="evolutum">
<emphasis id="41C0EAF2FFCDFFCBFAD0D249FA162206" box="[1317,1452,1564,1589]" italics="true" pageId="5" pageNumber="190">E. evolutum</emphasis>
</taxonomicName>
also has cell walls smooth, whereas the new species has cell walls finely scrobiculate.
</paragraph>
<paragraph id="730B36E0FFCDFFCBFF48D231FF4722DA" blockId="5.[136,1452,1060,1769]" pageId="5" pageNumber="190">
Another similar species is
<taxonomicName id="B4B44D63FFCDFFCBFE1BD231FAB2224E" authority="Willi Krieg. &amp; A. M. Scott (1957: 132)" authorityName="Willi Krieg. &amp; A. M. Scott" authorityPageNumber="132" authorityYear="1957" box="[494,1288,1636,1661]" class="Conjugatophyceae" family="Desmidiaceae" genus="Euastrum" kingdom="Plantae" order="Zygnematales" pageId="5" pageNumber="190" phylum="Charophyta" rank="variety" species="bidentatum" variety="peruvianum">
<emphasis id="41C0EAF2FFCDFFCBFE1BD231FD37224E" box="[494,653,1636,1661]" italics="true" pageId="5" pageNumber="190">E. bidentatum</emphasis>
var.
<emphasis id="41C0EAF2FFCDFFCBFD32D231FCF7224E" box="[711,845,1636,1661]" italics="true" pageId="5" pageNumber="190">peruvianum</emphasis>
Willi Krieg. &amp; A.M.Scott (1957: 132)
</taxonomicName>
, which differs from
<taxonomicName id="B4B44D63FFCDFFCBFF33D2DDFEEB2292" authorityName="G. J. P. Ramos &amp; C. W. N. Moura" authorityYear="2019" box="[198,337,1672,1697]" class="Conjugatophyceae" family="Desmidiaceae" genus="Euastrum" kingdom="Plantae" order="Zygnematales" pageId="5" pageNumber="190" phylum="Charophyta" rank="species" species="piataense">
<emphasis id="41C0EAF2FFCDFFCBFF33D2DDFEEB2292" box="[198,337,1672,1697]" italics="true" pageId="5" pageNumber="190">E. piataense</emphasis>
</taxonomicName>
by not having two central scrobicles in the mid-region, and by having an apical V-shaped incision and a number of granules near the lateral margins.
<taxonomicName id="B4B44D63FFCDFFCBFD3AD2F9FC1522F6" authorityName="G. J. P. Ramos &amp; C. W. N. Moura" authorityYear="2019" box="[719,943,1708,1733]" class="Conjugatophyceae" family="Desmidiaceae" genus="Euastrum" kingdom="Plantae" order="Zygnematales" pageId="5" pageNumber="190" phylum="Charophyta" rank="species" species="piataense">
<emphasis id="41C0EAF2FFCDFFCBFD3AD2F9FC1522F6" box="[719,943,1708,1733]" italics="true" pageId="5" pageNumber="190">Euastrum piataense</emphasis>
</taxonomicName>
occurred in large numbers in the sample we examined.
</paragraph>
</subSubSection>
</treatment>
</document>