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<document id="ED261D178A32EAD2983A1F34B3CAF002" ID-CLB-Dataset="20323" ID-DOI="10.11646/phytotaxa.536.3.3" ID-GBIF-Dataset="bf5e3003-038b-48b4-a214-1fc1a73cd921" ID-ISSN="1179-3163" ID-Zenodo-Dep="6331876" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" checkinTime="1646592230445" checkinUser="plazi" docAuthor="Santos, Maria Aparecida Dos, Ramos, Geraldo José Peixoto &amp; Moura, Carlos Wallace Do Nascimento" docDate="2022" docId="5921D53AFFF3AC0947A8FFBEFCEBF7DE" docLanguage="en" docName="phytotaxa.536.3.3.pdf" docOrigin="Phytotaxa 536 (3)" docStyle="DocumentStyle:96748F8F1B6C902996E134952A3A36B9.7:Phytotaxa.2014-.journal_article" docStyleId="96748F8F1B6C902996E134952A3A36B9" docStyleName="Phytotaxa.2014-.journal_article" docStyleVersion="7" docTitle="Xanthidium nordstedtii Gronblad &amp; A. M. Scott" docType="treatment" docVersion="6" lastPageNumber="237" masterDocId="A518AD42FFFAAC004720FF23FFD5FFD6" masterDocTitle="Taxonomic notes on genera Bourrellyodesmus and Xanthidium (Zygnematophyceae) from Chapada Diamantina, Bahia, Brazil" masterLastPageNumber="242" masterPageNumber="228" pageNumber="237" updateTime="1699316742410" updateUser="ExternalLinkService" zenodo-license-figures="UNSPECIFIED" zenodo-license-treatments="UNSPECIFIED">
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<mods:title id="4934FB61624295D1303B19677E49D39C">Taxonomic notes on genera Bourrellyodesmus and Xanthidium (Zygnematophyceae) from Chapada Diamantina, Bahia, Brazil</mods:title>
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<mods:namePart id="8C4A81894B35119371E8AFDB5E31918F">Santos, Maria Aparecida Dos</mods:namePart>
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<mods:affiliation id="EDCDEFBBE82D0F3026047FD01020550E">Programa de Pós-Graduação em Botânica, Universidade Estadual de Feira de Santana, Departamento de Ciências Biológicas, Laboratório de Ficologia, Av. Universitária, km 3, BR- 116, 44031 - 460, Feira de Santana, BA, Brazil &amp; maria. asbio @ hotmail. com; https: // orcid. org / 0000 - 0001 - 9354 - 7192</mods:affiliation>
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<mods:namePart id="AEF33D013510BC1BE9B3CF21A8CC94EE">Ramos, Geraldo José Peixoto</mods:namePart>
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<mods:affiliation id="3F799564553B9FB44F0AD057C5C12121">Departamento de Ciências Biológicas, Universidade Estadual de Santa Cruz, Rodovia Jorge Amado, km 16, 45662 - 900, Ilhéus, BA, Brazil &amp; gjpramos @ uesc. br; https: // orcid. org / 0000 - 0003 - 2089 - 0461</mods:affiliation>
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<mods:namePart id="21BC5217FCEB96D7672DD00D2A427DBF">Moura, Carlos Wallace Do Nascimento</mods:namePart>
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<mods:title id="4563C6547290A86AAE1E6D665E828A25">Phytotaxa</mods:title>
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<mods:date id="663D1DF6DB07C952ADBF7287B553D59F">2022</mods:date>
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<treatment id="5921D53AFFF3AC0947A8FFBEFCEBF7DE" ID-DOI="http://doi.org/10.5281/zenodo.6343763" ID-GBIF-Taxon="193892645" ID-Zenodo-Dep="6343763" LSID="urn:lsid:plazi:treatment:5921D53AFFF3AC0947A8FFBEFCEBF7DE" httpUri="http://treatment.plazi.org/id/5921D53AFFF3AC0947A8FFBEFCEBF7DE" lastPageNumber="237" pageId="9" pageNumber="237">
<subSubSection id="999237A7FFF3AC0947A8FFBEFBEDFF6E" box="[136,1080,157,185]" pageId="9" pageNumber="237" type="nomenclature">
<paragraph id="D137642CFFF3AC0947A8FFBEFBEDFF6E" blockId="9.[136,1080,157,185]" box="[136,1080,157,185]" pageId="9" pageNumber="237">
<heading id="8A7FD340FFF3AC0947A8FFBEFBEDFF6E" box="[136,1080,157,185]" fontSize="11" level="2" pageId="9" pageNumber="237" reason="3">
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<taxonomicName id="16881FAFFFF3AC0947A8FFBEFCF5FF6E" authority="(Gronblad) Gronblad &amp; A. M. Scott" authorityName="Gronblad &amp; A. M. Scott" baseAuthorityName="Gronblad" box="[136,800,157,185]" class="Conjugatophyceae" family="Desmidiaceae" genus="Xanthidium" kingdom="Plantae" order="Zygnematales" pageId="9" pageNumber="237" phylum="Charophyta" rank="species" species="nordstedtii">
<emphasis id="E3FCB83EFFF3AC0947A8FFBEFE40FF6E" bold="true" box="[136,405,157,184]" italics="true" pageId="9" pageNumber="237">Xanthidium nordstedtii</emphasis>
(Grönblad) Grönblad &amp; A.M.Scott
</taxonomicName>
in
<treatmentCitation id="5029423DFFF3AC094463FFBDFBEDFF6E" author="Scott, A. M. &amp; Gronblad, R. &amp; Croasdale, H." box="[835,1080,158,185]" page="48" pageId="9" pageNumber="237" year="1965">
<bibRefCitation id="B51919DDFFF3AC094463FFBDFBEDFF6E" author="Scott, A. M. &amp; Gronblad, R. &amp; Croasdale, H." box="[835,1080,158,185]" pageId="9" pageNumber="237" pagination="1 - 93" refId="ref9450" refString="Scott, A. M., Gronblad, R. &amp; Croasdale, H. (1965) Desmids from the Amazon Basin, Brasil. Acta Botanica Fennica 69: 1 - 93." type="journal article" year="1965">
Scott
<emphasis id="E3FCB83EFFF3AC0944A4FFBCFC69FF6E" box="[900,956,158,184]" italics="true" pageId="9" pageNumber="237">et al.</emphasis>
(1965: 48)
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<subSubSection id="999237A7FFF3AC0947A8FFE1FE8BFF0B" box="[136,350,194,221]" pageId="9" pageNumber="237" type="description">
<paragraph id="D137642CFFF3AC0947A8FFE1FE8BFF0B" blockId="9.[136,954,194,257]" box="[136,350,194,221]" pageId="9" pageNumber="237">
(
<figureCitation id="49B378A9FFF3AC0947B0FFE1FF0CFF0A" box="[144,217,194,220]" captionStart="FIGURES 16" captionStartId="2.[136,243,1989,2011]" captionTargetBox="[177,1405,211,1939]" captionTargetId="figure-19@2.[151,1436,190,1965]" captionTargetPageId="2" captionText="FIGURES 16. Line drawings. 1. Bourrelyodesmus comperei sp. nov. 2. Xanthidium concinnum var. longispinum var. nov. 3. Xanthidium mamillosum var. mediolaeve. 4. Xanthidium nordstedtii. 5. Xanthidium regulare var. asteptum. 6. Xanthidium trilobum." figureDoi="http://doi.org/10.5281/zenodo.6331878" httpUri="https://zenodo.org/record/6331878/files/figure.png" pageId="9" pageNumber="237">Figs 4</figureCitation>
,
<figureCitation id="49B378A9FFF3AC0947C5FFE1FEF8FF0A" box="[229,301,194,220]" captionStart="FIGURES 3147" captionStartId="5.[136,243,1953,1975]" captionTargetBox="[205,1379,205,1881]" captionTargetId="figure-28@5.[186,1401,190,1929]" captionTargetPageId="5" captionText="FIGURES 3147. Xanthidium nordstedtii (3139): frontal view (31, 32, 3638), lateral view (3435), apical view (33), morphological variation (3638), spines base with slight swelling details (39). Xanthidium regulare var. asteptum (4047): frontal view (40, 41), apical view (4243), lateral view (4445), detail of central ornamentation circled on semicell of Fig. 41 (46), zygospore (47). Scale Bar: 40 μm, except Fig. 47 (50 μm, horizontal bar)." figureDoi="http://doi.org/10.5281/zenodo.6331884" httpUri="https://zenodo.org/record/6331884/files/figure.png" pageId="9" pageNumber="237">3139</figureCitation>
,
<figureCitation id="49B378A9FFF3AC094619FFE1FE83FF0B" box="[313,342,194,221]" captionStart="FIGURES 6667" captionStartId="7.[136,243,1953,1975]" captionTargetBox="[193,1394,198,1922]" captionTargetId="figure-28@7.[185,1402,190,1929]" captionTargetPageId="7" captionText="FIGURES 6667. Xanthidium nordstedtii (66): frontal view (SEM). Xanthidium trilobum (67): frontal view (SEM). Scale Bar: 20 μm." figureDoi="http://doi.org/10.5281/zenodo.6331888" httpUri="https://zenodo.org/record/6331888/files/figure.png" pageId="9" pageNumber="237">66</figureCitation>
)
</paragraph>
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<subSubSection id="999237A7FFF3AC0947A8FFC6FC0EFE63" pageId="9" pageNumber="237" type="reference_group">
<paragraph id="D137642CFFF3AC0947A8FFC6FC6FFED7" blockId="9.[136,954,194,257]" box="[136,954,229,257]" pageId="9" pageNumber="237">
<emphasis id="E3FCB83EFFF3AC0947A8FFC6FF2BFF29" bold="true" box="[136,254,229,255]" pageId="9" pageNumber="237">Basionym</emphasis>
:
<taxonomicName id="16881FAFFFF3AC09462DFFC4FC9AFED6" authority="Gronblad (1945: 22" authorityName="Gronblad" authorityYear="1945" box="[269,847,230,257]" class="Conjugatophyceae" family="Desmidiaceae" genus="Xanthidium" kingdom="Plantae" order="Zygnematales" pageId="9" pageNumber="237" phylum="Charophyta" rank="variety" species="antilopaeum" variety="nordstedtii">
<emphasis id="E3FCB83EFFF3AC09462DFFC4FE6DFED6" box="[269,440,230,256]" italics="true" pageId="9" pageNumber="237">X. antilopaeum</emphasis>
var.
<emphasis id="E3FCB83EFFF3AC0946CFFFC5FDB2FED6" box="[495,615,230,256]" italics="true" pageId="9" pageNumber="237">nordstedtii</emphasis>
<bibRefCitation id="B51919DDFFF3AC09454FFFC5FC9AFED6" author="Gronblad, R." box="[623,847,230,257]" pageId="9" pageNumber="237" pagination="1 - 44" refId="ref8222" refString="Gronblad, R. (1945) De algis brasiliensibus. Praecipue desmidiaceis in regione inferiore fluminis Amazonas a professore August Ginzberger (Wien) anno MCMXXVII collectis. Acta Societatis Scienctiarum Fennicae 2 (6): 1 - 44." type="journal article" year="1945">Grönblad (1945: 22</bibRefCitation>
</taxonomicName>
, fig. 152)
</paragraph>
<paragraph id="D137642CFFF3AC0947A8FE0EFED9FE91" blockId="9.[136,1452,301,2056]" box="[136,268,301,327]" pageId="9" pageNumber="237">
<heading id="8A7FD340FFF3AC0947A8FE0EFED9FE91" bold="true" box="[136,268,301,327]" fontSize="11" level="1" pageId="9" pageNumber="237" reason="1">
<emphasis id="E3FCB83EFFF3AC0947A8FE0EFED9FE91" bold="true" box="[136,268,301,327]" pageId="9" pageNumber="237">Synonyms:</emphasis>
</heading>
</paragraph>
<paragraph id="D137642CFFF3AC0947A8FE70FD53FEBB" blockId="9.[136,1452,301,2056]" box="[136,646,338,365]" pageId="9" pageNumber="237">
<taxonomicName id="16881FAFFFF3AC0947A8FE70FEE6FEBA" authorityName="Kutzing" authorityYear="1849" box="[136,307,338,364]" class="Conjugatophyceae" family="Desmidiaceae" genus="Xanthidium" kingdom="Plantae" order="Zygnematales" pageId="9" pageNumber="237" phylum="Charophyta" rank="species" species="antilopaeum">
<emphasis id="E3FCB83EFFF3AC0947A8FE70FEE6FEBA" box="[136,307,338,364]" italics="true" pageId="9" pageNumber="237">X. antilopaeum</emphasis>
</taxonomicName>
f.
<bibRefCitation id="B51919DDFFF3AC094671FE71FDE0FEBA" author="Nordstedt, C. F. O." box="[337,565,338,364]" pageId="9" pageNumber="237" pagination="1 - 24" refId="ref8550" refString="Nordstedt, C. F. O. (1878) De algis aquae dulcis et de Characeis ex insulis Sandvicensibus a Sv. Bergren 1875 reportatis. Minnesskrift utgifven af Kongl. Fysiografiska Sallskapet i Lund 7: 1 - 24." type="journal article" year="1878">Nordstedt (1878: 27</bibRefCitation>
, fig. 6)
</paragraph>
<paragraph id="D137642CFFF3AC0947A8FE54FCB6FE47" blockId="9.[136,1452,301,2056]" box="[136,867,374,401]" pageId="9" pageNumber="237">
<taxonomicName id="16881FAFFFF3AC0947A8FE54FD62FE46" authority="Gronblad (1945: 21" authorityName="Gronblad" authorityYear="1945" box="[136,695,374,401]" class="Conjugatophyceae" family="Desmidiaceae" genus="Xanthidium" kingdom="Plantae" order="Zygnematales" pageId="9" pageNumber="237" phylum="Charophyta" rank="variety" species="antilopaeum" variety="ayayense">
<emphasis id="E3FCB83EFFF3AC0947A8FE54FEE6FE46" box="[136,307,374,400]" italics="true" pageId="9" pageNumber="237">X. antilopaeum</emphasis>
var.
<emphasis id="E3FCB83EFFF3AC09464AFE54FE04FE46" box="[362,465,375,400]" italics="true" pageId="9" pageNumber="237">ayayense</emphasis>
<bibRefCitation id="B51919DDFFF3AC0946F8FE55FD62FE46" author="Gronblad, R." box="[472,695,374,401]" pageId="9" pageNumber="237" pagination="1 - 44" refId="ref8222" refString="Gronblad, R. (1945) De algis brasiliensibus. Praecipue desmidiaceis in regione inferiore fluminis Amazonas a professore August Ginzberger (Wien) anno MCMXXVII collectis. Acta Societatis Scienctiarum Fennicae 2 (6): 1 - 44." type="journal article" year="1945">Grönblad (1945: 21</bibRefCitation>
</taxonomicName>
, pl. 7, fig. 146)
</paragraph>
<paragraph id="D137642CFFF3AC0947A8FEB9FC0EFE63" blockId="9.[136,1452,301,2056]" box="[136,987,410,437]" pageId="9" pageNumber="237">
<taxonomicName id="16881FAFFFF3AC0947A8FEB9FC0EFE63" authority="(Gronblad) Kurt Forster (1969: 62)" authorityName="Kurt Forster" authorityPageNumber="62" authorityYear="1969" baseAuthorityName="Gronblad" box="[136,987,410,437]" class="Conjugatophyceae" family="Desmidiaceae" genus="Xanthidium" kingdom="Plantae" order="Zygnematales" pageId="9" pageNumber="237" phylum="Charophyta" rank="variety" species="mamillosum" variety="nordstedtii">
<emphasis id="E3FCB83EFFF3AC0947A8FEB9FE4EFE62" box="[136,411,410,436]" italics="true" pageId="9" pageNumber="237">Xanthidium mamillosum</emphasis>
var.
<emphasis id="E3FCB83EFFF3AC0946F2FEB9FD9FFE62" box="[466,586,410,436]" italics="true" pageId="9" pageNumber="237">nordstedtii</emphasis>
(Grönblad) Kurt
<bibRefCitation id="B51919DDFFF3AC09442FFEB9FC0EFE63" author="Forster, K." box="[783,987,410,437]" pageId="9" pageNumber="237" pagination="5 - 116" refId="ref7977" refString="Forster, K. (1969) Amazonische Desmidieen 1. Areal Santarem. Amazoniana 2 (1 - 2): 5 - 116, pl. 1 - 56." type="journal article" year="1969">Förster (1969: 62)</bibRefCitation>
</taxonomicName>
</paragraph>
</subSubSection>
<subSubSection id="999237A7FFF3AC0947A8FE9EFB9EFE2A" pageId="9" pageNumber="237" type="description">
<paragraph id="D137642CFFF3AC0947A8FE9EFB9EFE2A" blockId="9.[136,1452,301,2056]" pageId="9" pageNumber="237">
<emphasis id="E3FCB83EFFF3AC0947A8FE9EFE91FE01" bold="true" box="[136,324,445,471]" pageId="9" pageNumber="237">Cell dimensions</emphasis>
:—length without spines 4855 μm long, with spines 7086 µm, width without spines 3845 μm, with spines 6090 μm, isthmus 11.514.5 μm, thickness 2728 µm, spines 1528 μm long.
</paragraph>
</subSubSection>
<subSubSection id="999237A7FFF3AC09479DFD26FC5DFDBF" pageId="9" pageNumber="237" type="materials_examined">
<paragraph id="D137642CFFF3AC09479DFD26FC5DFDBF" blockId="9.[136,1452,301,2056]" pageId="9" pageNumber="237">
<emphasis id="E3FCB83EFFF3AC09479DFD26FE74FDC9" bold="true" box="[189,417,517,543]" pageId="9" pageNumber="237">Material examined</emphasis>
:—
<materialsCitation id="61E06E71FFF3AC0946E3FD25FC50FDBF" ID-GBIF-Occurrence="3698904310" pageId="9" pageNumber="237">
<collectingCountry id="A99F24BCFFF3AC0946E3FD25FDFBFDF6" box="[451,558,518,544]" name="Brazil" pageId="9" pageNumber="237">BRAZIL</collectingCountry>
.
<collectingRegion id="134CAACEFFF3AC09451AFD25FD55FDF6" box="[570,640,518,544]" country="Brazil" name="Bahia" pageId="9" pageNumber="237">Bahia</collectingRegion>
: Andaraí, Pantanal dos Marimbus, Lagoa do Baiano. Samples:
<collectionCode id="B799FCE9FFF3AC094273FD25FA79FDF6" box="[1363,1452,518,544]" 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="9" pageNumber="237" type="Herbarium">HUEFS</collectionCode>
253741,
<collectionCode id="B799FCE9FFF3AC0947CFFD09FE9DFD92" box="[239,328,554,580]" 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="9" pageNumber="237" type="Herbarium">HUEFS</collectionCode>
253742,
<collectionCode id="B799FCE9FFF3AC09469BFD09FDC1FD92" box="[443,532,554,580]" 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="9" pageNumber="237" type="Herbarium">HUEFS</collectionCode>
253751,
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253752,
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253759,
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253766,
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253775,
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253777,
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253783,
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253804,
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253808
</materialsCitation>
.
</paragraph>
</subSubSection>
<subSubSection id="999237A7FFF3AC09479DFD52FEE2FD2E" pageId="9" pageNumber="237" type="biology_ecology">
<paragraph id="D137642CFFF3AC09479DFD52FEE2FD2E" blockId="9.[136,1452,301,2056]" pageId="9" pageNumber="237">
<emphasis id="E3FCB83EFFF3AC09479DFD52FECCFD5D" bold="true" box="[189,281,625,651]" pageId="9" pageNumber="237">Habitat</emphasis>
:—In the study area, this taxon was occasionally found associated to
<taxonomicName id="16881FAFFFF3AC094309FD51FB19FD5A" authorityName="A. Gray" authorityYear="1837" box="[1065,1228,626,652]" class="Magnoliopsida" family="Cabombaceae" genus="Cabomba" kingdom="Plantae" order="Nymphaeales" pageId="9" pageNumber="237" phylum="Tracheophyta" rank="species" species="caroliniana">
<emphasis id="E3FCB83EFFF3AC094309FD51FB19FD5A" box="[1065,1228,626,652]" italics="true" pageId="9" pageNumber="237">C. caroliniana</emphasis>
</taxonomicName>
and
<emphasis id="E3FCB83EFFF3AC094225FD50FAAEFD5A" box="[1285,1403,626,652]" italics="true" pageId="9" pageNumber="237">
<taxonomicName id="16881FAFFFF3AC094225FD50FAA2FD5A" authorityName="Linnaeus" authorityYear="1753" box="[1285,1399,626,652]" class="Magnoliopsida" family="Lentibulariaceae" genus="Utricularia" kingdom="Plantae" order="Lamiales" pageId="9" pageNumber="237" phylum="Tracheophyta" rank="species" species="foliosa">U. foliosa</taxonomicName>
,
</emphasis>
and rarely to
<taxonomicName id="16881FAFFFF3AC0947CBFDB4FE51FD66" box="[235,388,663,688]" class="Magnoliopsida" family="Nymphaeaceae" genus="Nymphaea" kingdom="Plantae" order="Nymphaeales" pageId="9" pageNumber="237" phylum="Tracheophyta" rank="species" species="amazonum">
<emphasis id="E3FCB83EFFF3AC0947CBFDB4FE51FD66" box="[235,388,663,688]" italics="true" pageId="9" pageNumber="237">N. amazonum</emphasis>
</taxonomicName>
; EC 0.02 mS.
<superScript id="26FDC964FFF3AC09453DFDB5FD9AFD72" attach="left" box="[541,591,662,688]" fontSize="6" pageId="9" pageNumber="237">cm-1</superScript>
(±0.01); DO 7.2 (±1.5); TDS 0.02 (±0.01); pH 7.0 (±0.9); T 30.4 ºC (±2); WT
<quantity id="1670C9C9FFF3AC0947A8FD99FF36FD02" box="[136,227,698,725]" metricMagnitude="-1" metricUnit="m" metricValue="6.59" pageId="9" pageNumber="237" unit="cm" value="65.9">65.9 cm</quantity>
(±17); N-NO
<subScript id="4D0C6669FFF3AC09465EFDEFFE53FD0C" attach="left" box="[382,390,716,730]" fontSize="6" pageId="9" pageNumber="237">2</subScript>
0.013 (0.005±); NNO
<subScript id="4D0C6669FFF3AC0945AFFDEFFD42FD0C" attach="left" box="[655,663,716,730]" fontSize="6" pageId="9" pageNumber="237">3</subScript>
0.024 (±0.016); N-NH
<subScript id="4D0C6669FFF3AC0944BBFDEFFC76FD0C" attach="left" box="[923,931,716,730]" fontSize="6" pageId="9" pageNumber="237">4</subScript>
0.027 (±0.019); PPO
<subScript id="4D0C6669FFF3AC094383FDEFFB7EFD0C" attach="left" box="[1187,1195,716,730]" fontSize="6" pageId="9" pageNumber="237">4</subScript>
0.019 (±0.013); O
<subScript id="4D0C6669FFF3AC09425EFDEFFA53FD0C" attach="both" box="[1406,1414,716,730]" fontSize="6" pageId="9" pageNumber="237">4</subScript>
<superScript id="26FDC964FFF3AC0942A6FD99FA7EFD1E" attach="right" box="[1414,1451,698,724]" fontSize="6" pageId="9" pageNumber="237">Si-4</superScript>
0.506 (±0.470).
</paragraph>
</subSubSection>
<subSubSection id="999237A7FFF3AC09479DFC22FCEBF7DE" pageId="9" pageNumber="237" type="discussion">
<paragraph id="D137642CFFF3AC09479DFC22FE65FC7A" blockId="9.[136,1452,301,2056]" pageId="9" pageNumber="237">
<emphasis id="E3FCB83EFFF3AC09479DFC22FE5CFCCA" bold="true" box="[189,393,769,796]" pageId="9" pageNumber="237">Taxonomic notes</emphasis>
:—This taxon was initially described by
<bibRefCitation id="B51919DDFFF3AC094445FC21FB9EFCCA" author="Gronblad, R." box="[869,1099,770,797]" pageId="9" pageNumber="237" pagination="1 - 44" refId="ref8222" refString="Gronblad, R. (1945) De algis brasiliensibus. Praecipue desmidiaceis in regione inferiore fluminis Amazonas a professore August Ginzberger (Wien) anno MCMXXVII collectis. Acta Societatis Scienctiarum Fennicae 2 (6): 1 - 44." type="journal article" year="1945">Grönblad (1945: 22</bibRefCitation>
, Pl. 7, fig. 152) for Santarém,
<collectingRegion id="134CAACEFFF3AC0947A8FC05FF68FC96" box="[136,189,806,832]" country="Brazil" name="Para" pageId="9" pageNumber="237">Pará</collectingRegion>
,
<collectingCountry id="A99F24BCFFF3AC0947EBFC05FEC7FC96" box="[203,274,806,832]" name="Brazil" pageId="9" pageNumber="237">Brazil</collectingCountry>
, as
<taxonomicName id="16881FAFFFF3AC094662FC05FCC5FC96" authorityName="Gronblad" authorityYear="1945" box="[322,784,806,832]" class="Conjugatophyceae" family="Desmidiaceae" genus="Xanthidium" kingdom="Plantae" order="Zygnematales" pageId="9" pageNumber="237" phylum="Charophyta" rank="variety" species="antilopaeum" variety="nordstedtii">
<emphasis id="E3FCB83EFFF3AC094662FC05FD8EFC96" box="[322,603,806,832]" italics="true" pageId="9" pageNumber="237">Xanthidium antilopaeum</emphasis>
var.
<emphasis id="E3FCB83EFFF3AC0945B8FC05FCC5FC96" box="[664,784,806,832]" italics="true" pageId="9" pageNumber="237">nordstedtii</emphasis>
</taxonomicName>
and included
<taxonomicName id="16881FAFFFF3AC094497FC04FBB3FC96" authorityName="Kutzing" authorityYear="1849" box="[951,1126,806,832]" class="Conjugatophyceae" family="Desmidiaceae" genus="Xanthidium" kingdom="Plantae" order="Zygnematales" pageId="9" pageNumber="237" phylum="Charophyta" rank="species" species="antilopaeum">
<emphasis id="E3FCB83EFFF3AC094497FC04FBB3FC96" box="[951,1126,806,832]" italics="true" pageId="9" pageNumber="237">X. antilopaeum</emphasis>
</taxonomicName>
forma (
<bibRefCitation id="B51919DDFFF3AC0943E4FC05FA73FC96" author="Nordstedt, C. F. O." box="[1220,1446,806,832]" pageId="9" pageNumber="237" pagination="1 - 24" refId="ref8550" refString="Nordstedt, C. F. O. (1878) De algis aquae dulcis et de Characeis ex insulis Sandvicensibus a Sv. Bergren 1875 reportatis. Minnesskrift utgifven af Kongl. Fysiografiska Sallskapet i Lund 7: 1 - 24." type="journal article" year="1878">Nordstedt 1878: 27</bibRefCitation>
, fig. 6) as a synonym of it. Grönblad characterized the taxon as having oblong semicells, open sinus, rounded ends, bearing 6 spines, single apical and double basal, transverse parallel to perpendicular, with an inflated base, and oblongrectangular in apical view.
</paragraph>
<paragraph id="D137642CFFF3AC09479DFC95FC5EFBEA" blockId="9.[136,1452,301,2056]" pageId="9" pageNumber="237">
Polyphasic study performed by
<bibRefCitation id="B51919DDFFF3AC094510FC94FCF7FC06" author="Stastny, J. &amp; Skaloud, P. &amp; Langenbach, D. &amp; Neustupa, K. N. J." box="[560,802,950,978]" pageId="9" pageNumber="237" pagination="401 - 416" refId="ref9605" refString="Stastny, J., Skaloud, P., Langenbach, D. &amp; Neustupa, K. N. J. (2013) Polyphasic evaluation of Xanthidium antilopaeum and Xanthidium cristatum (Zygnematophyceae, Streptophyta) species complex. Journal of Phycology 49: 401 - 416. https: // doi. org / 10.1111 / jpy. 12051" type="journal article" year="2013">
Šťastný
<emphasis id="E3FCB83EFFF3AC0945B1FC94FD18FC06" box="[657,717,950,976]" italics="true" pageId="9" pageNumber="237">et al.</emphasis>
(2013)
</bibRefCitation>
with
<taxonomicName id="16881FAFFFF3AC094449FC94FAD8FC06" authority="Kutzing (1849: 177)" authorityName="Kutzing" authorityPageNumber="177" authorityYear="1849" box="[873,1293,950,976]" class="Conjugatophyceae" family="Desmidiaceae" genus="Xanthidium" kingdom="Plantae" order="Zygnematales" pageId="9" pageNumber="237" phylum="Charophyta" rank="species" species="antilopaeum">
<emphasis id="E3FCB83EFFF3AC094449FC94FBC2FC06" box="[873,1047,950,976]" italics="true" pageId="9" pageNumber="237">X. antilopaeum</emphasis>
<bibRefCitation id="B51919DDFFF3AC094302FC95FAD8FC06" author="Kutzing, F. T." box="[1058,1293,950,976]" pageId="9" pageNumber="237" refId="ref8264" refString="Kutzing, F. T. (1849) Species algarum. Lipsiae, Leipzig, 922 pp." type="book" year="1849">Kützing (1849: 177)</bibRefCitation>
</taxonomicName>
from various European localities showed that the taxon forms a monophyletic lineage, composed by four monophyletic clades, characterized by wide cells with eight spines per semicell, differing from each other because of the arrangement of the spines, cell dimensions, and the pattern of the central ornamentation.
</paragraph>
<paragraph id="D137642CFFF3AC09479DFB65FC7FFB7E" blockId="9.[136,1452,301,2056]" pageId="9" pageNumber="237">
Morphologically,
<taxonomicName id="16881FAFFFF3AC0946AAFB64FD24FBB6" authorityName="Gronblad" authorityYear="1945" box="[394,753,1094,1120]" class="Conjugatophyceae" family="Desmidiaceae" genus="Xanthidium" kingdom="Plantae" order="Zygnematales" pageId="9" pageNumber="237" phylum="Charophyta" rank="variety" species="antilopaeum" variety="nordstedtii">
<emphasis id="E3FCB83EFFF3AC0946AAFB64FDECFBB6" box="[394,569,1094,1120]" italics="true" pageId="9" pageNumber="237">X. antilopaeum</emphasis>
var.
<emphasis id="E3FCB83EFFF3AC094559FB65FD24FBB6" box="[633,753,1094,1120]" italics="true" pageId="9" pageNumber="237">nordstedtii</emphasis>
</taxonomicName>
differs from the nominate variety by having six spines per semicell, a single in each apical angle and two in the basal ones, with longer spines and semicell more rotund in apical view (
<bibRefCitation id="B51919DDFFF3AC0947EDFBADFE52FB7F" author="Scott, A. M. &amp; Gronblad, R. &amp; Croasdale, H." box="[205,391,1166,1193]" pageId="9" pageNumber="237" pagination="1 - 93" refId="ref9450" refString="Scott, A. M., Gronblad, R. &amp; Croasdale, H. (1965) Desmids from the Amazon Basin, Brasil. Acta Botanica Fennica 69: 1 - 93." type="journal article" year="1965">
Scott
<emphasis id="E3FCB83EFFF3AC09462FFBACFE9DFB7E" box="[271,328,1166,1192]" italics="true" pageId="9" pageNumber="237">et al.</emphasis>
1965
</bibRefCitation>
) and no central scrobiculae on face of semicells.
</paragraph>
<paragraph id="D137642CFFF3AC09479DFB91FD1CFA56" blockId="9.[136,1452,301,2056]" pageId="9" pageNumber="237">
Grönblad &amp; Scott in
<bibRefCitation id="B51919DDFFF3AC094696FB91FD6CFB1A" author="Scott, A. M. &amp; Gronblad, R. &amp; Croasdale, H." box="[438,697,1202,1229]" pageId="9" pageNumber="237" pagination="1 - 93" refId="ref9450" refString="Scott, A. M., Gronblad, R. &amp; Croasdale, H. (1965) Desmids from the Amazon Basin, Brasil. Acta Botanica Fennica 69: 1 - 93." type="journal article" year="1965">
Scott
<emphasis id="E3FCB83EFFF3AC0946DAFB90FDE3FB1A" box="[506,566,1202,1228]" italics="true" pageId="9" pageNumber="237">et al.</emphasis>
(1965: 48)
</bibRefCitation>
raised the
<taxonomicName id="16881FAFFFF3AC09441EFB90FB76FB1A" authorityName="Gronblad" authorityYear="1945" box="[830,1187,1202,1228]" class="Conjugatophyceae" family="Desmidiaceae" genus="Xanthidium" kingdom="Plantae" order="Zygnematales" pageId="9" pageNumber="237" phylum="Charophyta" rank="variety" species="antilopaeum" variety="nordstedtii">
<emphasis id="E3FCB83EFFF3AC09441EFB90FC38FB1A" box="[830,1005,1202,1228]" italics="true" pageId="9" pageNumber="237">X. antilopaeum</emphasis>
var.
<emphasis id="E3FCB83EFFF3AC09430BFB91FB76FB1A" box="[1067,1187,1202,1228]" italics="true" pageId="9" pageNumber="237">nordstedtii</emphasis>
</taxonomicName>
to species level, as
<taxonomicName id="16881FAFFFF3AC0942B3FB90FF2CFB26" class="Conjugatophyceae" family="Desmidiaceae" genus="Xanthidium" kingdom="Plantae" order="Zygnematales" pageId="9" pageNumber="237" phylum="Charophyta" rank="species" species="nordstedii">
<emphasis id="E3FCB83EFFF3AC0942B3FB90FF2CFB26" italics="true" pageId="9" pageNumber="237">X. nordstedii</emphasis>
</taxonomicName>
, and characterized it as having semicells broadly ovate, spines with swollen base, with two basal spines extending horizontally, and an apical spine directed outwardly and slightly upward; tumid apical view (
<bibRefCitation id="B51919DDFFF3AC09420CFBD9FF16FAEF" author="Scott, A. M. &amp; Gronblad, R. &amp; Croasdale, H." pageId="9" pageNumber="237" pagination="1 - 93" refId="ref9450" refString="Scott, A. M., Gronblad, R. &amp; Croasdale, H. (1965) Desmids from the Amazon Basin, Brasil. Acta Botanica Fennica 69: 1 - 93." type="journal article" year="1965">
Scott
<emphasis id="E3FCB83EFFF3AC094251FBD8FA79FAC2" box="[1393,1452,1274,1300]" italics="true" pageId="9" pageNumber="237">et al.</emphasis>
1965
</bibRefCitation>
, fig. 136137). A couple of years later,
<bibRefCitation id="B51919DDFFF3AC0945B7FA3DFCBFFAEF" author="Forster, K." box="[663,874,1310,1337]" pageId="9" pageNumber="237" pagination="5 - 116" refId="ref7977" refString="Forster, K. (1969) Amazonische Desmidieen 1. Areal Santarem. Amazoniana 2 (1 - 2): 5 - 116, pl. 1 - 56." type="journal article" year="1969">Förster (1969: 62)</bibRefCitation>
reduced that species to variety of
<taxonomicName id="16881FAFFFF3AC094220FA3CFE8CFA8A" authority="Forster (1964: 411" authorityName="Forster" authorityYear="1964" class="Conjugatophyceae" family="Desmidiaceae" genus="Xanthidium" kingdom="Plantae" order="Zygnematales" pageId="9" pageNumber="237" phylum="Charophyta" rank="species" species="mamillosum">
<emphasis id="E3FCB83EFFF3AC094220FA3CFA7EFAEE" box="[1280,1451,1310,1336]" italics="true" pageId="9" pageNumber="237">X. mamillosum</emphasis>
<bibRefCitation id="B51919DDFFF3AC0947A8FA61FE8CFA8A" author="Forster, K." box="[136,345,1346,1372]" pageId="9" pageNumber="237" pagination="321 - 505" refId="ref7932" refString="Forster, K. (1964) Desmidiaceen aus Brasilien, 2: Bahia, Goyaz, Piauhy und Nord- Brasilien. Hydrobiologia 23 (3 - 4): 321 - 505. https: // doi. org / 10.1007 / BF 00179497" type="journal article" year="1964">Förster (1964: 411</bibRefCitation>
</taxonomicName>
as
<emphasis id="E3FCB83EFFF3AC09465FFA61FDE5FA8A" box="[383,560,1346,1372]" italics="true" pageId="9" pageNumber="237">mammillosum</emphasis>
), distinguishing it from the nominate variety by having no spine on the face of the semicells and having tumid cells in apical view.
</paragraph>
<paragraph id="D137642CFFF3AC09479DFAA9FB2AF9AA" blockId="9.[136,1452,301,2056]" pageId="9" pageNumber="237">
According to
<bibRefCitation id="B51919DDFFF3AC09467AFAA9FD8BFA72" author="Thomasson, K." box="[346,606,1418,1444]" pageId="9" pageNumber="237" pagination="1 - 57" refId="ref9701" refString="Thomasson, K. (1971) Amazonian desmids. Memoires Institute Royal des Sciences Naturelles de Belgique 86: 1 - 57." type="journal article" year="1971">Thomasson (1971: 43)</bibRefCitation>
,
<taxonomicName id="16881FAFFFF3AC09454BFAA8FCC1FA72" authorityName="Forster" authorityYear="1964" box="[619,788,1418,1444]" class="Conjugatophyceae" family="Desmidiaceae" genus="Xanthidium" kingdom="Plantae" order="Zygnematales" pageId="9" pageNumber="237" phylum="Charophyta" rank="species" species="mamillosum">
<emphasis id="E3FCB83EFFF3AC09454BFAA8FCC1FA72" box="[619,788,1418,1444]" italics="true" pageId="9" pageNumber="237">X. mamillosum</emphasis>
</taxonomicName>
differs from
<taxonomicName id="16881FAFFFF3AC09448DFAA8FB93FA72" box="[941,1094,1418,1444]" class="Conjugatophyceae" family="Desmidiaceae" genus="Xanthidium" kingdom="Plantae" order="Zygnematales" pageId="9" pageNumber="237" phylum="Charophyta" rank="species" species="nordstedtii">
<emphasis id="E3FCB83EFFF3AC09448DFAA8FB93FA72" box="[941,1094,1418,1444]" italics="true" pageId="9" pageNumber="237">X. nordstedtii</emphasis>
</taxonomicName>
by having spines rising from a swollen base, which is absent in the latter species. The author also commented on the morphological similarity of
<taxonomicName id="16881FAFFFF3AC0942B3FA8CFD78FA3A" authority="Gronblad (1945: 210" authorityName="Gronblad" authorityYear="1945" class="Conjugatophyceae" family="Desmidiaceae" genus="Xanthidium" kingdom="Plantae" order="Zygnematales" pageId="9" pageNumber="237" phylum="Charophyta" rank="variety" species="antilopaeum" variety="ayayense">
<emphasis id="E3FCB83EFFF3AC0942B3FA8CFEC1FA3A" italics="true" pageId="9" pageNumber="237">X. antilopaeum</emphasis>
var.
<emphasis id="E3FCB83EFFF3AC09466EFAF0FE60FA3A" box="[334,437,1491,1516]" italics="true" pageId="9" pageNumber="237">ayayense</emphasis>
<bibRefCitation id="B51919DDFFF3AC09469DFAF1FD78FA3A" author="Gronblad, R." box="[445,685,1490,1517]" pageId="9" pageNumber="237" pagination="1 - 44" refId="ref8222" refString="Gronblad, R. (1945) De algis brasiliensibus. Praecipue desmidiaceis in regione inferiore fluminis Amazonas a professore August Ginzberger (Wien) anno MCMXXVII collectis. Acta Societatis Scienctiarum Fennicae 2 (6): 1 - 44." type="journal article" year="1945">Grönblad (1945: 210</bibRefCitation>
</taxonomicName>
, Pl. 7, fig. 146) with
<taxonomicName id="16881FAFFFF3AC094481FAF0FBEFFA3A" box="[929,1082,1490,1516]" class="Conjugatophyceae" family="Desmidiaceae" genus="Xanthidium" kingdom="Plantae" order="Zygnematales" pageId="9" pageNumber="237" phylum="Charophyta" rank="species" species="nordstedtii">
<emphasis id="E3FCB83EFFF3AC094481FAF0FBEFFA3A" box="[929,1082,1490,1516]" italics="true" pageId="9" pageNumber="237">X. nordstedtii</emphasis>
</taxonomicName>
, and except for the tumid apical view in the latter, there are no differences between both taxa, which we fully agree. In the present study, we observed some slight tumid semicells in the apical view and slight swelling at the base of the spines, although in others, it was difficult to distinguish, especially when the focus had not been properly applied. Furthermore, we observed variations in the size of the spines, since longer (2228 μm) in some individuals to shorter (1518 μm) in others.
</paragraph>
<paragraph id="D137642CFFF3AC09479DF9A5FF60F883" blockId="9.[136,1452,301,2056]" pageId="9" pageNumber="237">
<bibRefCitation id="B51919DDFFF3AC09479DF9A5FE06F977" author="Coute, A. &amp; Tell, G." box="[189,467,1670,1697]" pageId="9" pageNumber="237" pagination="1 - 228" refId="ref7655" refString="Coute, A. &amp; Tell, G. (1981) Ultrastructure de la paroi cellulaire des desmidiacees au microscope electronique a balaiage. Beih. Nova Hedwigia 68: 1 - 228." type="journal article" year="1981">Couté &amp; Tell (1981: 196)</bibRefCitation>
carried out a SEM study from material collected in
<collectingCountry id="A99F24BCFFF3AC09432BF9A5FBAFF976" box="[1035,1146,1670,1696]" name="Argentina" pageId="9" pageNumber="237">Argentina</collectingCountry>
and
<collectingCountry id="A99F24BCFFF3AC09438EF9A5FADDF976" box="[1198,1288,1670,1696]" name="Guyana" pageId="9" pageNumber="237">Guyana</collectingCountry>
, and identified the taxon under discussion as
<taxonomicName id="16881FAFFFF3AC0946F0F988FBD9F912" authority="Kurt Forster (1981: 247)" authorityName="Kurt Forster" authorityPageNumber="247" authorityYear="1981" box="[464,1036,1706,1732]" class="Conjugatophyceae" family="Desmidiaceae" genus="Xanthidium" kingdom="Plantae" order="Zygnematales" pageId="9" pageNumber="237" phylum="Charophyta" rank="variety" species="mamillosum" variety="borgei">
<emphasis id="E3FCB83EFFF3AC0946F0F988FDA2F912" box="[464,631,1706,1732]" italics="true" pageId="9" pageNumber="237">X. mamillosum</emphasis>
var.
<emphasis id="E3FCB83EFFF3AC09458CF989FD21F912" box="[684,756,1706,1732]" italics="true" pageId="9" pageNumber="237">borgei</emphasis>
Kurt
<bibRefCitation id="B51919DDFFF3AC094412F989FBD9F912" author="Forster, K." box="[818,1036,1706,1732]" pageId="9" pageNumber="237" pagination="226 - 235" refId="ref8030" refString="Forster, K. (1981) Revision und Validierung von Desmidiaceen-Namen aus fruheren Publikationen. 1. Algological Studies / Archiv fur Hydrobiologie Supplement 28: 226 - 235." type="journal article" year="1981">Förster (1981: 247)</bibRefCitation>
</taxonomicName>
. Based on the images provided by the authors (Pl V, fig. 35), it is possible to observe semicells with punctuated walls, bearing six spines with slight swelling at the base. Thus, we consider it is more appropriate to accommodate that taxon as
<taxonomicName id="16881FAFFFF3AC094336F9D0FB79F8DA" box="[1046,1196,1778,1804]" class="Conjugatophyceae" family="Desmidiaceae" genus="Xanthidium" kingdom="Plantae" order="Zygnematales" pageId="9" pageNumber="237" phylum="Charophyta" rank="species" species="nordstedtii">
<emphasis id="E3FCB83EFFF3AC094336F9D0FB79F8DA" box="[1046,1196,1778,1804]" italics="true" pageId="9" pageNumber="237">X. nordstedtii</emphasis>
</taxonomicName>
than as
<taxonomicName id="16881FAFFFF3AC094225F9D0FED5F8E6" authorityName="Kurt Forster" authorityYear="1981" class="Conjugatophyceae" family="Desmidiaceae" genus="Xanthidium" kingdom="Plantae" order="Zygnematales" pageId="9" pageNumber="237" phylum="Charophyta" rank="variety" species="mamillosum" variety="borgei">
<emphasis id="E3FCB83EFFF3AC094225F9D0FA7EF8DA" box="[1285,1451,1778,1804]" italics="true" pageId="9" pageNumber="237">X. mamillosum</emphasis>
var.
<emphasis id="E3FCB83EFFF3AC094798F835FED5F8E6" box="[184,256,1814,1840]" italics="true" pageId="9" pageNumber="237">borgei</emphasis>
</taxonomicName>
, the latter a misapplied name. This material was quite similar to the SEM image obtained from Bahia (
<figureCitation id="49B378A9FFF3AC09425EF835FF7DF883" captionStart="FIGURES 6667" captionStartId="7.[136,243,1953,1975]" captionTargetBox="[193,1394,198,1922]" captionTargetId="figure-28@7.[185,1402,190,1929]" captionTargetPageId="7" captionText="FIGURES 6667. Xanthidium nordstedtii (66): frontal view (SEM). Xanthidium trilobum (67): frontal view (SEM). Scale Bar: 20 μm." figureDoi="http://doi.org/10.5281/zenodo.6331888" httpUri="https://zenodo.org/record/6331888/files/figure.png" pageId="9" pageNumber="237">Fig. 66</figureCitation>
).
</paragraph>
<paragraph id="D137642CFFF3AC09479DF87DFCEBF7DE" blockId="9.[136,1452,301,2056]" pageId="9" pageNumber="237">
In addition to the
<typeStatus id="0E33DA8EFFF3AC0946A6F87DFE63F8AE" box="[390,438,1886,1912]" pageId="9" pageNumber="237">type</typeStatus>
locality (Santarém,
<collectingRegion id="134CAACEFFF3AC0945BAF87DFD05F8AE" box="[666,720,1886,1912]" country="Brazil" name="Para" pageId="9" pageNumber="237">Pará</collectingRegion>
), the taxon was registered in the states of
<collectingRegion id="134CAACEFFF3AC094383F87DFACCF8AE" box="[1187,1305,1886,1912]" country="Brazil" name="Amazonas" pageId="9" pageNumber="237">Amazonas</collectingRegion>
(
<bibRefCitation id="B51919DDFFF3AC094208F87DFF16F84A" author="Thomasson, K." pageId="9" pageNumber="237" pagination="1 - 57" refId="ref9701" refString="Thomasson, K. (1971) Amazonian desmids. Memoires Institute Royal des Sciences Naturelles de Belgique 86: 1 - 57." type="journal article" year="1971">Thomasson 1971</bibRefCitation>
),
<collectingRegion id="134CAACEFFF3AC0947F7F8A1FECDF84A" box="[215,280,1922,1948]" country="Brazil" name="Bahia" pageId="9" pageNumber="237">Bahia</collectingRegion>
(Oliveira
<emphasis id="E3FCB83EFFF3AC0946ACF8A0FE1EF84A" box="[396,459,1922,1948]" italics="true" pageId="9" pageNumber="237">et. al.</emphasis>
2011, as
<taxonomicName id="16881FAFFFF3AC094516F8A0FD34F84A" authorityName="Kutzing" authorityYear="1849" box="[566,737,1922,1948]" class="Conjugatophyceae" family="Desmidiaceae" genus="Xanthidium" kingdom="Plantae" order="Zygnematales" pageId="9" pageNumber="237" phylum="Charophyta" rank="species" species="antilopaeum">
<emphasis id="E3FCB83EFFF3AC094516F8A0FD34F84A" box="[566,737,1922,1948]" italics="true" pageId="9" pageNumber="237">X. antilopaeum</emphasis>
</taxonomicName>
f.),
<collectingRegion id="134CAACEFFF3AC09442FF8A1FC94F84A" box="[783,833,1922,1948]" country="Brazil" name="Para" pageId="9" pageNumber="237">Pará</collectingRegion>
(
<bibRefCitation id="B51919DDFFF3AC094470F8A1FC28F84B" author="Gronblad, R." box="[848,1021,1922,1949]" pageId="9" pageNumber="237" pagination="1 - 44" refId="ref8222" refString="Gronblad, R. (1945) De algis brasiliensibus. Praecipue desmidiaceis in regione inferiore fluminis Amazonas a professore August Ginzberger (Wien) anno MCMXXVII collectis. Acta Societatis Scienctiarum Fennicae 2 (6): 1 - 44." type="journal article" year="1945">Grönblad 1945</bibRefCitation>
;
<bibRefCitation id="B51919DDFFF3AC094329F8A1FB11F84B" author="Scott, A. M. &amp; Gronblad, R. &amp; Croasdale, H." box="[1033,1220,1922,1949]" pageId="9" pageNumber="237" pagination="1 - 93" refId="ref9450" refString="Scott, A. M., Gronblad, R. &amp; Croasdale, H. (1965) Desmids from the Amazon Basin, Brasil. Acta Botanica Fennica 69: 1 - 93." type="journal article" year="1965">
Scott
<emphasis id="E3FCB83EFFF3AC09436AF8A0FB57F84A" box="[1098,1154,1922,1948]" italics="true" pageId="9" pageNumber="237">et al.</emphasis>
1965
</bibRefCitation>
;
<bibRefCitation id="B51919DDFFF3AC0943F0F8A1FAB4F84A" author="Forster, K." box="[1232,1377,1922,1948]" pageId="9" pageNumber="237" pagination="5 - 116" refId="ref7977" refString="Forster, K. (1969) Amazonische Desmidieen 1. Areal Santarem. Amazoniana 2 (1 - 2): 5 - 116, pl. 1 - 56." type="journal article" year="1969">Förster 1969</bibRefCitation>
,
<bibRefCitation id="B51919DDFFF3AC09424CF8A1FA72F84A" author="Forster, K." box="[1388,1447,1922,1948]" pageId="9" pageNumber="237" pagination="135 - 242" refId="ref8009" refString="Forster, K. (1974) Amazonische Desmidien 2. Amazoniana 2 (2): 135 - 242." type="journal article" year="1974">1974</bibRefCitation>
,
<bibRefCitation id="B51919DDFFF3AC0947A8F885FF17F816" author="Forster, K." box="[136,194,1958,1984]" pageId="9" pageNumber="237" pagination="226 - 235" refId="ref8030" refString="Forster, K. (1981) Revision und Validierung von Desmidiaceen-Namen aus fruheren Publikationen. 1. Algological Studies / Archiv fur Hydrobiologie Supplement 28: 226 - 235." type="journal article" year="1981">1981</bibRefCitation>
, as
<taxonomicName id="16881FAFFFF3AC0947CBF884FD95F816" authorityName="Kurt Forster" authorityYear="1969" baseAuthorityName="Gronblad" box="[235,576,1958,1984]" class="Conjugatophyceae" family="Desmidiaceae" genus="Xanthidium" kingdom="Plantae" order="Zygnematales" pageId="9" pageNumber="237" phylum="Charophyta" rank="variety" species="mamillosum" variety="nordstedtii">
<emphasis id="E3FCB83EFFF3AC0947CBF884FE46F816" box="[235,403,1958,1984]" italics="true" pageId="9" pageNumber="237">X. mamillosum</emphasis>
var.
<emphasis id="E3FCB83EFFF3AC0946E8F885FD95F816" box="[456,576,1958,1984]" italics="true" pageId="9" pageNumber="237">nordstedtii</emphasis>
</taxonomicName>
),
<collectingRegion id="134CAACEFFF3AC094577F885FD38F816" box="[599,749,1958,1984]" country="Brazil" name="Minas Gerais" pageId="9" pageNumber="237">Minas Gerais</collectingRegion>
(
<bibRefCitation id="B51919DDFFF3AC0945DAF885FC79F816" author="Nordstedt, C. F. O." box="[762,940,1958,1984]" pageId="9" pageNumber="237" pagination="1 - 24" refId="ref8550" refString="Nordstedt, C. F. O. (1878) De algis aquae dulcis et de Characeis ex insulis Sandvicensibus a Sv. Bergren 1875 reportatis. Minnesskrift utgifven af Kongl. Fysiografiska Sallskapet i Lund 7: 1 - 24." type="journal article" year="1878">Nordstedt 1878</bibRefCitation>
, as
<taxonomicName id="16881FAFFFF3AC0944F4F884FBAAF816" authorityName="Kutzing" authorityYear="1849" box="[980,1151,1958,1984]" class="Conjugatophyceae" family="Desmidiaceae" genus="Xanthidium" kingdom="Plantae" order="Zygnematales" pageId="9" pageNumber="237" phylum="Charophyta" rank="species" species="antilopaeum">
<emphasis id="E3FCB83EFFF3AC0944F4F884FBAAF816" box="[980,1151,1958,1984]" italics="true" pageId="9" pageNumber="237">X. antilopaeum</emphasis>
</taxonomicName>
f.), and
<collectingRegion id="134CAACEFFF3AC0943FBF885FA9EF816" box="[1243,1355,1958,1984]" country="Brazil" name="Sao Paulo" pageId="9" pageNumber="237">São Paulo</collectingRegion>
(
<bibRefCitation id="B51919DDFFF3AC094279F885FED0F832" author="Bicudo, C. E. M. &amp; Faustino, S. M. M. &amp; Godinho, L. R." pageId="9" pageNumber="237" refId="ref7089" refString="Bicudo, C. E. M., Faustino, S. M. M. &amp; Godinho, L. R. (2018) Flora Ficologica do Estado de Sao Paulo: Zygnemaphyceae, volume 4 parte 4. Rima, Sao Carlos, 321 pp." type="book" year="2018">
Bicudo
<emphasis id="E3FCB83EFFF3AC0947A8F8E8FF17F832" box="[136,194,1994,2020]" italics="true" pageId="9" pageNumber="237">et al.</emphasis>
2018
</bibRefCitation>
, as
<taxonomicName id="16881FAFFFF3AC094612F8E8FE0BF832" authorityName="Kutzing" authorityYear="1849" box="[306,478,1994,2020]" class="Conjugatophyceae" family="Desmidiaceae" genus="Xanthidium" kingdom="Plantae" order="Zygnematales" pageId="9" pageNumber="237" phylum="Charophyta" rank="species" species="antilopaeum">
<emphasis id="E3FCB83EFFF3AC094612F8E8FE0BF832" box="[306,478,1994,2020]" italics="true" pageId="9" pageNumber="237">X. antilopaeum</emphasis>
</taxonomicName>
f.). It was the most common
<taxonomicName id="16881FAFFFF3AC094412F8E9FC60F832" authorityName="Ehrenberg ex Ralfs" authorityYear="1848" box="[818,949,1994,2020]" class="Conjugatophyceae" family="Desmidiaceae" genus="Xanthidium" kingdom="Plantae" order="Zygnematales" pageId="9" pageNumber="237" phylum="Charophyta" rank="genus">
<emphasis id="E3FCB83EFFF3AC094412F8E9FC60F832" box="[818,949,1994,2020]" italics="true" pageId="9" pageNumber="237">Xanthidium</emphasis>
</taxonomicName>
taxon in Marimbus do Baiano, occurring in 44% of the samples and registered in all macrophytes studied.
</paragraph>
</subSubSection>
</treatment>
</document>