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<mods:title id="E161B51BC44A50ADF9ABC37236856897">Taxonomic notes on genera Bourrellyodesmus and Xanthidium (Zygnematophyceae) from Chapada Diamantina, Bahia, Brazil</mods:title>
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<mods:namePart id="C2D9EF624CAFC8F251573830342E7F34">Santos, Maria Aparecida Dos</mods:namePart>
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<mods:affiliation id="EF16153FD8E63BEDA8A2F3F658F7714F">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="DF829525900AD52ADF2B343701293B37">Ramos, Geraldo José Peixoto</mods:namePart>
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<mods:affiliation id="3A5878F2050329EBF4772EC641DE84A9">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="29C7E57C01D14CC2E44687B5E405EA83">Moura, Carlos Wallace Do Nascimento</mods:namePart>
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<mods:affiliation id="310727B4336B865234293BC6397DA513">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; wallace @ uefs. br; https: // orcid. org / 0000 - 0001 - 6904 - 6603</mods:affiliation>
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<mods:title id="C7BB1E17AEF05EE525F0DE21E75C6F87">Phytotaxa</mods:title>
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<mods:date id="6DD97D339F925AD9C4DB04E5082F19FB">2022</mods:date>
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<mods:number id="0B15D462ED4B66E11CF797168B38650C">536</mods:number>
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<treatment id="5921D53AFFF0AC0B47A8FA3DFDACFC96" ID-DOI="http://doi.org/10.5281/zenodo.6343767" ID-GBIF-Taxon="193892648" ID-Zenodo-Dep="6343767" LSID="urn:lsid:plazi:treatment:5921D53AFFF0AC0B47A8FA3DFDACFC96" httpUri="http://treatment.plazi.org/id/5921D53AFFF0AC0B47A8FA3DFDACFC96" lastPageId="11" lastPageNumber="239" pageId="10" pageNumber="238">
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<paragraph id="D137642CFFF0AC0A47A8FA3DFC8FFAEF" blockId="10.[136,858,1310,1337]" box="[136,858,1310,1337]" pageId="10" pageNumber="238">
<heading id="8A7FD340FFF0AC0A47A8FA3DFC8FFAEF" box="[136,858,1310,1337]" fontSize="11" level="2" pageId="10" pageNumber="238" reason="3">
<treatmentCitationGroup id="F1984302FFF0AC0A47A8FA3DFC8FFAEF" box="[136,858,1310,1337]" pageId="10" pageNumber="238">
<treatmentCitation id="5029423DFFF0AC0A47A8FA3DFDA8FAEE" author="Nordstedt, C. F. O." box="[136,637,1310,1337]" page=")" pageId="10" pageNumber="238" year="1870">
<taxonomicName id="16881FAFFFF0AC0A47A8FA3DFDA8FAEE" authority="Nordstedt (1870: 230)" authorityName="Nordstedt" authorityPageNumber="230" authorityYear="1870" box="[136,637,1310,1337]" class="Conjugatophyceae" family="Desmidiaceae" genus="Xanthidium" kingdom="Plantae" order="Zygnematales" pageId="10" pageNumber="238" phylum="Charophyta" rank="species" species="trilobum">
<emphasis id="E3FCB83EFFF0AC0A47A8FA3DFEABFAEF" bold="true" box="[136,382,1310,1337]" italics="true" pageId="10" pageNumber="238">Xanthidium trilobum</emphasis>
<bibRefCitation id="B51919DDFFF0AC0A46A4FA3DFDA8FAEE" author="Nordstedt, C. F. O." box="[388,637,1310,1336]" pageId="10" pageNumber="238" pagination="195 - 234" refId="ref8518" refString="Nordstedt, C. F. O. (1870) Symbolae ad floram Brasiliae centralis cognoscendam. Videnskabelige meddelelser fra Dansk naturhistorisk forening i KObenhaven 21: 195 - 234." type="journal article" year="1870">Nordstedt (1870: 230)</bibRefCitation>
</taxonomicName>
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(
<figureCitation id="49B378A9FFF0AC0A45ACFA3DFD00FAEE" box="[652,725,1310,1336]" 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="10" pageNumber="238">Figs 6</figureCitation>
,
<figureCitation id="49B378A9FFF0AC0A45C1FA3DFCFFFAEF" box="[737,810,1310,1337]" captionStart="FIGURES 4865" captionStartId="6.[136,243,1953,1975]" captionTargetBox="[213,1386,210,1910]" captionTargetId="figure-19@6.[182,1406,190,1929]" captionTargetPageId="6" captionText="FIGURES 4865. Xanthidium trilobum (4854): frontal view (48, 53), lateral view (49), apical view (50), detail of central ornamentation circled on semicell of Fig. 48 (51), celldivision (52), zygospore (54). Xanthidium verrucosum sp. nov. (5565): frontal view (55, 59, 6265), lateral view (56, 61), apical view (5758, 60), morphological variation of the ornamentation (55, 65) and spines size (6365). Cell formation (65), showing a tiny spine on the basal lobe (arrows). Scale Bar: 40 μm, except Fig. 54 (50 μm, horizontal bar)." figureDoi="http://doi.org/10.5281/zenodo.6331886" httpUri="https://zenodo.org/record/6331886/files/figure.png" pageId="10" pageNumber="238">4854</figureCitation>
,
<figureCitation id="49B378A9FFF0AC0A4415FA3DFC87FAEF" box="[821,850,1310,1337]" 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="10" pageNumber="238">67</figureCitation>
)
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</paragraph>
<paragraph id="D137642CFFF0AC0A47A8FA45FED4FA56" blockId="10.[136,881,1382,1445]" box="[136,257,1382,1408]" pageId="10" pageNumber="238">
<heading id="8A7FD340FFF0AC0A47A8FA45FED4FA56" bold="true" box="[136,257,1382,1408]" fontSize="11" level="1" pageId="10" pageNumber="238" reason="1">
<emphasis id="E3FCB83EFFF0AC0A47A8FA45FED4FA56" bold="true" box="[136,257,1382,1408]" pageId="10" pageNumber="238">Synonym:</emphasis>
</heading>
</paragraph>
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<paragraph id="D137642CFFF0AC0A47A8FAA9FCA4FA72" blockId="10.[136,881,1382,1445]" box="[136,881,1418,1445]" pageId="10" pageNumber="238">
<taxonomicName id="16881FAFFFF0AC0A47A8FAA9FCC6FA72" authority="Lemmermann " authorityName="Lemmermann" authorityYear="1914" box="[136,787,1418,1445]" class="Conjugatophyceae" family="Desmidiaceae" genus="Xanthidium" kingdom="Plantae" order="Zygnematales" pageId="10" pageNumber="238" phylum="Charophyta" rank="variety" species="trilobum" variety="laeve">
<emphasis id="E3FCB83EFFF0AC0A47A8FAA9FEADFA72" box="[136,376,1418,1444]" italics="true" pageId="10" pageNumber="238">Xanthidum triblobum</emphasis>
var.
<emphasis id="E3FCB83EFFF0AC0A4690FAA9FE3EFA72" box="[432,491,1418,1444]" italics="true" pageId="10" pageNumber="238">laeve</emphasis>
<bibRefCitation id="B51919DDFFF0AC0A46D2FAA8FCC6FA72" author="Lemmermann, E." box="[498,787,1418,1445]" pageId="10" pageNumber="238" pagination="261 - 267" refId="ref8322" refString="Lemmermann, E. (1914) Algologische Beitrage, 13: uber das Vorkommen von Algen in den Schlauchen von Utricularia. Abhandlungen hrsg. vom Naturwissenschaften Verein zu Bremen 23 (1): 261 - 267." type="journal article" year="1914">Lemmermann (1914: 216</bibRefCitation>
</taxonomicName>
, fig. 14)
</paragraph>
<paragraph id="D137642CFFF0AC0A47A8FAF1FB66F9E2" blockId="10.[136,1452,1490,2093]" pageId="10" pageNumber="238">
<emphasis id="E3FCB83EFFF0AC0A47A8FAF1FE91FA3A" bold="true" box="[136,324,1490,1516]" pageId="10" pageNumber="238">Cell dimensions</emphasis>
:—length 4862 μm (without spines), 6189 μm (including spines), width 4360 μm (without spines), 5285 μm (including spines), thickness 1825 µm, isthmus 1018 μm, spines 513 μm long. Zygospore 110 µm in diameter (including spines), globular in shape and provided with long, apically furcated spines.
</paragraph>
<paragraph id="D137642CFFF0AC0A479DF91DFF67F977" blockId="10.[136,1452,1490,2093]" pageId="10" pageNumber="238">
<emphasis id="E3FCB83EFFF0AC0A479DF91DFECCF98E" bold="true" box="[189,281,1598,1624]" pageId="10" pageNumber="238">Habitat</emphasis>
:—This species was common in study area, and found associated to
<emphasis id="E3FCB83EFFF0AC0A430AF91CFAAFF98E" box="[1066,1402,1598,1625]" italics="true" pageId="10" pageNumber="238">
<taxonomicName id="16881FAFFFF0AC0A430AF91CFB04F98E" authorityName="A. Gray" authorityYear="1837" box="[1066,1233,1598,1625]" class="Magnoliopsida" family="Cabombaceae" genus="Cabomba" kingdom="Plantae" order="Nymphaeales" pageId="10" pageNumber="238" phylum="Tracheophyta" rank="species" species="caroliniana">C. caroliniana</taxonomicName>
,
<taxonomicName id="16881FAFFFF0AC0A43FEF91CFAAFF98E" box="[1246,1402,1599,1624]" class="Magnoliopsida" family="Nymphaeaceae" genus="Nymphaea" kingdom="Plantae" order="Nymphaeales" pageId="10" pageNumber="238" phylum="Tracheophyta" rank="species" species="amazonum">N. amazonum</taxonomicName>
</emphasis>
and
<taxonomicName id="16881FAFFFF0AC0A47A8F940FF23F9AA" authorityName="Linnaeus" authorityYear="1753" box="[136,246,1634,1660]" class="Magnoliopsida" family="Lentibulariaceae" genus="Utricularia" kingdom="Plantae" order="Lamiales" pageId="10" pageNumber="238" phylum="Tracheophyta" rank="species" species="foliosa">
<emphasis id="E3FCB83EFFF0AC0A47A8F940FF23F9AA" box="[136,246,1634,1660]" italics="true" pageId="10" pageNumber="238">U. foliosa</emphasis>
</taxonomicName>
; EC 0.02 mS.
<superScript id="26FDC964FFF0AC0A46B2F941FE11F9A6" attach="left" box="[402,452,1634,1660]" fontSize="6" pageId="10" pageNumber="238">cm-1</superScript>
(±0.01); DO 6.9 (±1.2); TDS 0.02 (±0.01); pH 7.1 (±1.1); T 30°C (±2.3); WT 68.7 (±14) cm.
</paragraph>
</subSubSection>
<subSubSection id="999237A7FFF0AC0B479DF989FDACFC96" lastPageId="11" lastPageNumber="239" pageId="10" pageNumber="238" type="materials_examined">
<paragraph id="D137642CFFF0AC0A479DF989FCFDF8DB" blockId="10.[136,1452,1490,2093]" pageId="10" pageNumber="238">
<emphasis id="E3FCB83EFFF0AC0A479DF989FE74F912" bold="true" box="[189,417,1706,1732]" pageId="10" pageNumber="238">Material examined</emphasis>
:—
<materialsCitation id="61E06E71FFF0AC0A46E3F989FCF1F8DB" ID-GBIF-Occurrence="3698904305" pageId="10" pageNumber="238">
<collectingCountry id="A99F24BCFFF0AC0A46E3F989FDFBF912" box="[451,558,1706,1732]" name="Brazil" pageId="10" pageNumber="238">BRAZIL</collectingCountry>
.
<collectingRegion id="134CAACEFFF0AC0A451AF989FD55F912" box="[570,640,1706,1732]" country="Brazil" name="Bahia" pageId="10" pageNumber="238">Bahia</collectingRegion>
: Andaraí, Pantanal dos Marimbus, Lagoa do Baiano. Samples:
<collectionCode id="B799FCE9FFF0AC0A4273F989FA79F912" box="[1363,1452,1706,1732]" 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="10" pageNumber="238" type="Herbarium">HUEFS</collectionCode>
253741,
<collectionCode id="B799FCE9FFF0AC0A47CFF9EDFE9DF93E" box="[239,328,1742,1768]" 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="10" pageNumber="238" type="Herbarium">HUEFS</collectionCode>
253746,
<collectionCode id="B799FCE9FFF0AC0A469BF9EDFDC1F93E" box="[443,532,1742,1768]" 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="10" pageNumber="238" type="Herbarium">HUEFS</collectionCode>
253754,
<collectionCode id="B799FCE9FFF0AC0A45A7F9EDFD35F93E" box="[647,736,1742,1768]" 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="10" pageNumber="238" type="Herbarium">HUEFS</collectionCode>
253756,
<collectionCode id="B799FCE9FFF0AC0A4473F9EDFC79F93E" box="[851,940,1742,1768]" 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="10" pageNumber="238" type="Herbarium">HUEFS</collectionCode>
253765, 253766,
<collectionCode id="B799FCE9FFF0AC0A43A7F9EDFB35F93E" box="[1159,1248,1742,1768]" 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="10" pageNumber="238" type="Herbarium">HUEFS</collectionCode>
253768,
<collectionCode id="B799FCE9FFF0AC0A4273F9EDFA79F93E" box="[1363,1452,1742,1768]" 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="10" pageNumber="238" type="Herbarium">HUEFS</collectionCode>
253781,
<collectionCode id="B799FCE9FFF0AC0A47CAF9D1FE96F8DA" box="[234,323,1778,1804]" 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="10" pageNumber="238" type="Herbarium">HUEFS</collectionCode>
253796,
<collectionCode id="B799FCE9FFF0AC0A468CF9D1FDD0F8DA" box="[428,517,1778,1804]" 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="10" pageNumber="238" type="Herbarium">HUEFS</collectionCode>
253802,
<collectionCode id="B799FCE9FFF0AC0A454DF9D1FD13F8DA" box="[621,710,1778,1804]" 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="10" pageNumber="238" type="Herbarium">HUEFS</collectionCode>
253811
</materialsCitation>
.
</paragraph>
<paragraph id="D137642CFFF0AC0A479DF835FBC5F8AE" blockId="10.[136,1452,1490,2093]" pageId="10" pageNumber="238">
<emphasis id="E3FCB83EFFF0AC0A479DF835FE5CF8E6" bold="true" box="[189,393,1814,1840]" pageId="10" pageNumber="238">Taxonomic notes</emphasis>
:—
<taxonomicName id="16881FAFFFF0AC0A468DF835FD4EF8E6" authorityName="Nordstedt" authorityYear="1870" box="[429,667,1814,1840]" class="Conjugatophyceae" family="Desmidiaceae" genus="Xanthidium" kingdom="Plantae" order="Zygnematales" pageId="10" pageNumber="238" phylum="Charophyta" rank="species" species="trilobum">
<emphasis id="E3FCB83EFFF0AC0A468DF835FD4EF8E6" box="[429,667,1814,1840]" italics="true" pageId="10" pageNumber="238">Xanthidium trilobum</emphasis>
</taxonomicName>
was described by
<bibRefCitation id="B51919DDFFF0AC0A4459F835FBAFF8E6" author="Nordstedt, C. F. O." box="[889,1146,1814,1840]" pageId="10" pageNumber="238" pagination="195 - 234" refId="ref8518" refString="Nordstedt, C. F. O. (1870) Symbolae ad floram Brasiliae centralis cognoscendam. Videnskabelige meddelelser fra Dansk naturhistorisk forening i KObenhaven 21: 195 - 234." type="journal article" year="1870">Nordstedt (1870: 230)</bibRefCitation>
based on specimens from Lagoa Santa (
<collectingRegion id="134CAACEFFF0AC0A4605F819FE11F883" box="[293,452,1850,1877]" country="Brazil" name="Minas Gerais" pageId="10" pageNumber="238">Minas Gerais</collectingRegion>
). This species is characterized by the presence of trilobate semicells angles with forked spines, and a central protrusion on the face of semicells ornamented by granules.
</paragraph>
<paragraph id="D137642CFFF0AC0B479DF8A1FD7FFF0A" blockId="10.[136,1452,1490,2093]" lastBlockId="11.[136,1452,158,832]" lastPageId="11" lastPageNumber="239" pageId="10" pageNumber="238">
This taxon has been reported in several Brazilian regions: South (
<bibRefCitation id="B51919DDFFF0AC0A4483F8A1FBBDF84A" author="Paula, A. C. M. &amp; Moresco, G. A. &amp; Bortolini, J. C. &amp; Jati, J. &amp; Reis, L. M. &amp; Rodrigues, L. C." box="[931,1128,1922,1948]" pageId="10" pageNumber="238" pagination="417 - 431" refId="ref8763" refString="Paula, A. C. M., Moresco, G. A., Bortolini, J. C., Jati, J., Reis, L. M. &amp; Rodrigues, L. C. (2014) Os generos Staurastrum, Staurodesmus e Xanthidium em uma lagoa de inundacao, planicie de inundacao do alto rio Parana, Brasil. Iheringia 69 (2): 417 - 431." type="journal article" year="2014">
Paula
<emphasis id="E3FCB83EFFF0AC0A44CBF8A0FBF1F84A" box="[1003,1060,1922,1948]" italics="true" pageId="10" pageNumber="238">et al.</emphasis>
2014
</bibRefCitation>
), Southeast (
<bibRefCitation id="B51919DDFFF0AC0A43D9F8A1FA72F84A" author="Borgesen, F." box="[1273,1447,1922,1948]" pageId="10" pageNumber="238" pagination="24 - 53" refId="ref7273" refString="Borgesen, F. (1891) Symbolae ad floram Brasiliae centralis cognoscendam. Edit. Eug. Warming. Particula XXXIV. Videnskabelige meddelelser fra den Naturhistoriske forening i Kjobenhavn 1890: 24 - 53." type="journal article" year="1891">Børgesen 1891</bibRefCitation>
;
<bibRefCitation id="B51919DDFFF0AC0A47A8F884FEBDF816" author="Lemmermann, E." box="[136,360,1958,1985]" pageId="10" pageNumber="238" pagination="261 - 267" refId="ref8322" refString="Lemmermann, E. (1914) Algologische Beitrage, 13: uber das Vorkommen von Algen in den Schlauchen von Utricularia. Abhandlungen hrsg. vom Naturwissenschaften Verein zu Bremen 23 (1): 261 - 267." type="journal article" year="1914">Lemmermann 1914</bibRefCitation>
, as
<taxonomicName id="16881FAFFFF0AC0A46B2F884FCFBF817" authority="Lemmermann" authorityName="Lemmermann" authorityYear="1914" box="[402,814,1958,1985]" class="Conjugatophyceae" family="Desmidiaceae" genus="Xanthidium" kingdom="Plantae" order="Zygnematales" pageId="10" pageNumber="238" phylum="Charophyta" rank="variety" species="trilobum" variety="laeve">
<emphasis id="E3FCB83EFFF0AC0A46B2F884FDC7F816" box="[402,530,1958,1984]" italics="true" pageId="10" pageNumber="238">X. trilobum</emphasis>
var.
<emphasis id="E3FCB83EFFF0AC0A456BF885FD53F816" box="[587,646,1958,1984]" italics="true" pageId="10" pageNumber="238">laeve</emphasis>
Lemmermann
</taxonomicName>
;
<bibRefCitation id="B51919DDFFF0AC0A441AF884FC15F816" author="Borge, O." box="[826,960,1958,1985]" pageId="10" pageNumber="238" pagination="1 - 33" refId="ref7176" 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</bibRefCitation>
,
<bibRefCitation id="B51919DDFFF0AC0A44ECF885FBD2F816" author="Borge, O." box="[972,1031,1958,1984]" pageId="10" pageNumber="238" pagination="1 - 108" refId="ref7208" refString="Borge, O. (1918) Die von Dr. A. Lofgren in Sao Paulo gessammelten Susswasseralgen. Arkiv for Botanik 15 (13): 1 - 108." type="journal article" year="1918">1918</bibRefCitation>
;
<bibRefCitation id="B51919DDFFF0AC0A4333F885FB33F816" author="Bicudo, C. E. M. &amp; Faustino, S. M. M. &amp; Godinho, L. R." box="[1043,1254,1958,1984]" pageId="10" pageNumber="238" 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="E3FCB83EFFF0AC0A434CF884FB71F816" box="[1132,1188,1958,1984]" italics="true" pageId="10" pageNumber="238">et al.</emphasis>
2018
</bibRefCitation>
) Midwest (
<bibRefCitation id="B51919DDFFF0AC0A4246F885FF16F833" author="Borge, O." pageId="10" pageNumber="238" pagination="1 - 56" refId="ref7240" refString="Borge, O. (1925) Die von F. C. Hoehne Wahrend der espedition Roosevelt-Rondon gessammelten Susswasseralgen. Arkiv for Botanik 19 (17): 1 - 56." type="journal article" year="1925">Borge 1925</bibRefCitation>
;
<bibRefCitation id="B51919DDFFF0AC0A47F0F8E9FE6FF832" author="Camargo, J. C. &amp; Loverde-Oliveira, S. M. &amp; Sophia, M. G. &amp; Nogueira, F. M. B." box="[208,442,1994,2020]" pageId="10" pageNumber="238" pagination="25 - 41" refId="ref7310" refString="Camargo, J. C., Loverde-Oliveira, S. M., Sophia, M. G. &amp; Nogueira, F. M. B. (2009) Desmidias perifiticas da baia do Coqueiro, Pantanal Matogrossense - Brasil. Iheringia 64 (2): 25 - 41." type="journal article" year="2009">
Camargo
<emphasis id="E3FCB83EFFF0AC0A461EF8E8FEA2F832" box="[318,375,1994,2020]" italics="true" pageId="10" pageNumber="238">et al.</emphasis>
2009
</bibRefCitation>
;
<bibRefCitation id="B51919DDFFF0AC0A46E7F8E9FD24F832" author="De-Lamonica-Freire, E. M." box="[455,753,1994,2020]" pageId="10" pageNumber="238" pagination="1 - 9" refId="ref7763" refString="De-Lamonica-Freire, E. M. (1992) O Genero Xanthidium (Zygnemaphyceae, Desmidiales) na estacao ecologica da Ilha de Taiama, estado de Mato Grosso, Brasil. Boletim do Instituto de Biociencias 1 (1): 1 - 9." type="journal article" year="1992">De-Lamonica-Freire 1992</bibRefCitation>
), Northeast (
<bibRefCitation id="B51919DDFFF0AC0A44A1F8E9FBB6F832" author="Oliveira, I. B. &amp; Bicudo, C. E. M. &amp; Moura, C. W. N." box="[897,1123,1994,2020]" pageId="10" pageNumber="238" pagination="89 - 93" refId="ref8632" refString="Oliveira, I. B., Bicudo, C. E. M. &amp; Moura, C. W. N. (2011) Octacanthium e Xanthidium (Desmidiaceae, Zygnematophyceae) em Camacari, estado da Bahia, Brasil. Sitientibus 11 (1): 89 - 93. http: // dx. doi. org / 10.13102 / scb 142" type="journal article" year="2011">
Oliveira
<emphasis id="E3FCB83EFFF0AC0A44C7F8E8FBF5F832" box="[999,1056,1994,2020]" italics="true" pageId="10" pageNumber="238">et al.</emphasis>
2011
</bibRefCitation>
), and North (
<bibRefCitation id="B51919DDFFF0AC0A43D8F8E9FA72F833" author="Gronblad, R." box="[1272,1447,1994,2021]" pageId="10" pageNumber="238" 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="B51919DDFFF0AC0A47A8F8CCFECDF7DE" author="Forster, K." box="[136,280,2030,2057]" pageId="10" pageNumber="238" 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</bibRefCitation>
,
<bibRefCitation id="B51919DDFFF0AC0A4601F8CDFE89F7DE" author="Forster, K." box="[289,348,2030,2056]" pageId="10" pageNumber="238" 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">1969</bibRefCitation>
,
<bibRefCitation id="B51919DDFFF0AC0A4646F8CDFE74F7DE" author="Forster, K." box="[358,417,2030,2056]" pageId="10" pageNumber="238" 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="B51919DDFFF0AC0A468AF8CDFDBEF7DE" author="Thomasson, K." box="[426,619,2030,2056]" pageId="10" pageNumber="238" 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>
,
<bibRefCitation id="B51919DDFFF0AC0A4555F8CDFC4CF7DE" author="Bittencourt-Oliveira, M. C." box="[629,921,2030,2056]" pageId="10" pageNumber="238" pagination="477 - 488" refId="ref7139" refString="Bittencourt-Oliveira, M. C. (1993) Ficoflorula do Reservatorio de Balbina, estado do Amazonas, III: Classe Zygnemaphyceae. Revista Brasileira de Biologia 53 (3): 477 - 488." type="journal article" year="1993">Bittencourt-Oliveira 1993</bibRefCitation>
,
<bibRefCitation id="B51919DDFFF0AC0A4482F8CCFB4CF7DE" author="Lopes, M. R. M. &amp; Bicudo, C. E. M." box="[930,1177,2030,2057]" pageId="10" pageNumber="238" pagination="167 - 212" refId="ref8385" refString="Lopes, M. R. M. &amp; Bicudo, C. E. M. (2003) Desmidioflorula de um lago da planicie de inundacao do Rio Acre, Estado do Amazonas, Brasil. Acta Amazonica 33 (2): 167 - 212. https: // doi. org / 10.1590 / 1809 - 4392200332212" type="journal article" year="2003">Lopes &amp; Bicudo 2003</bibRefCitation>
;
<bibRefCitation id="B51919DDFFF0AC0A4383F8CDFA51F7DE" author="Souza, K. F. &amp; Melo, S." box="[1187,1412,2030,2056]" pageId="10" pageNumber="238" pagination="335 - 346" refId="ref9547" refString="Souza, K. F. &amp; Melo, S. (2011) Desmids (Chlorophyta) from lake Novo (Amapa, Brazil): genera Staurastrum, Staurodesmus e Xanthidium. Acta Amazonica 41 (3): 335 - 346. https: // doi. org / 10.1590 / S 0044 - 59672011000300002" type="journal article" year="2011">Souza &amp; Melo 2011</bibRefCitation>
), in which morphological variation can be seen on the margins between the basal and polar lobes, right to rounded angles; apical margin, retuse to rounded; protrusion on the face of the semicell from shallow to projected, and ornamented by obtuse granules or granules with spiniform ends.
</paragraph>
<paragraph id="D137642CFFF1AC0B479DFFC5FBEAFEF2" blockId="11.[136,1452,158,832]" pageId="11" pageNumber="239">
Some specimens identified in the present study are similar to those illustrated by
<bibRefCitation id="B51919DDFFF1AC0B431DFFC5FADDFED6" author="Thomasson, K." box="[1085,1288,230,256]" pageId="11" pageNumber="239" 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>
, Pl. 16, fig.14) and
<bibRefCitation id="B51919DDFFF1AC0B4797FE29FEB9FEF3" author="Gronblad, R." box="[183,364,266,293]" pageId="11" pageNumber="239" 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>
, Pl. 8, fig. 148) from specimens collected in the Amazon region.
</paragraph>
<paragraph id="D137642CFFF1AC0B479DFE0DFB63FE46" blockId="11.[136,1452,158,832]" pageId="11" pageNumber="239">
Morphologically,
<taxonomicName id="16881FAFFFF1AC0B46A5FE0DFDB8FE9E" authorityName="Nordstedt" authorityYear="1870" box="[389,621,302,328]" class="Conjugatophyceae" family="Desmidiaceae" genus="Xanthidium" kingdom="Plantae" order="Zygnematales" pageId="11" pageNumber="239" phylum="Charophyta" rank="species" species="trilobum">
<emphasis id="E3FCB83EFFF1AC0B46A5FE0DFDB8FE9E" box="[389,621,302,328]" italics="true" pageId="11" pageNumber="239">Xanthidium trilobum</emphasis>
</taxonomicName>
resembles
<taxonomicName id="16881FAFFFF1AC0B45C9FE0CFB07FE9E" authority="West &amp; G. S. West (1897: 88)" authorityName="West &amp; G. S. West" authorityPageNumber="88" authorityYear="1897" box="[745,1234,302,329]" class="Conjugatophyceae" family="Desmidiaceae" genus="Xanthidium" kingdom="Plantae" order="Zygnematales" pageId="11" pageNumber="239" phylum="Charophyta" rank="species" species="subtrilobum">
<emphasis id="E3FCB83EFFF1AC0B45C9FE0CFC5BFE9E" box="[745,910,302,328]" italics="true" pageId="11" pageNumber="239">X. subtrilobum</emphasis>
West &amp; G.S.
<bibRefCitation id="B51919DDFFF1AC0B4337FE0DFB07FE9E" author="West, W. &amp; West, G. S." box="[1047,1234,302,328]" pageId="11" pageNumber="239" pagination="297 - 304" refId="ref9770" refString="West, W. &amp; West, G. S. (1897) Welwitsch's African freshwater algae. Journal of Botany, British and Foreign 35: 1 - 7, 33 - 42, 77 - 89, 113 - 122, 172 - 183, 235 - 243, 264 - 272, 297 - 304." type="journal article" year="1897">West (1897: 88)</bibRefCitation>
</taxonomicName>
, especially because of the shape of the cell, although the latter differs by having semicells with a spine not forked at the angles of the lobes, and the presence of a spine in the middle of the outer margin of each lateral lobe in apical view.
</paragraph>
<paragraph id="D137642CFFF1AC0B479DFEB9FEE0FE2A" blockId="11.[136,1452,158,832]" pageId="11" pageNumber="239">
The zygospore with long, apically furcated spines analyzed in the Marimbus do Baiano were similar to reported by
<bibRefCitation id="B51919DDFFF1AC0B478EFE9DFE9AFE0E" author="Coesel, P. F. M." box="[174,335,446,472]" pageId="11" pageNumber="239" pagination="109 - 119" refId="ref7402" refString="Coesel, P. F. M. (1988) Desmid zygospores from French Guiana and the phenomenon of simultaneous conjugation in multi-species assemblies. Cryptogamie, Algologie 19 (1 - 2): 109 - 119." type="journal article" year="1988">Coesel (1988)</bibRefCitation>
for the material collected in a shallow pool in Eskol, municipality of Roura, south of Cayenne,
<collectingCountry id="A99F24BCFFF1AC0B47A8FEC1FEE7FE2A" box="[136,306,482,508]" name="French Guiana" pageId="11" pageNumber="239">French Guiana</collectingCountry>
.
</paragraph>
<paragraph id="D137642CFFF1AC0B479DFD25FADFFDBE" blockId="11.[136,1452,158,832]" pageId="11" pageNumber="239">
The
<collectionCode id="B799FCE9FFF1AC0B47D0FD25FEFFFDF6" box="[240,298,518,544]" pageId="11" pageNumber="239">SEM</collectionCode>
images of
<taxonomicName id="16881FAFFFF1AC0B4685FD24FDF0FDF6" authorityName="Nordstedt" authorityYear="1870" box="[421,549,518,544]" class="Conjugatophyceae" family="Desmidiaceae" genus="Xanthidium" kingdom="Plantae" order="Zygnematales" pageId="11" pageNumber="239" phylum="Charophyta" rank="species" species="trilobum">
<emphasis id="E3FCB83EFFF1AC0B4685FD24FDF0FDF6" box="[421,549,518,544]" italics="true" pageId="11" pageNumber="239">X. trilobum</emphasis>
</taxonomicName>
cells observed (
<figureCitation id="49B378A9FFF1AC0B45FBFD25FCF9FDF7" box="[731,812,518,545]" 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="11" pageNumber="239">Fig. 67</figureCitation>
) resembles to material studied to the
<collectingCountry id="A99F24BCFFF1AC0B43EFFD25FAEBFDF6" box="[1231,1342,518,544]" name="Argentina" pageId="11" pageNumber="239">Argentina</collectingCountry>
by
<bibRefCitation id="B51919DDFFF1AC0B4248FD25FE83FD92" author="Coute, A. &amp; Tell, G." pageId="11" pageNumber="239" 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: 214</bibRefCitation>
, Pl.10, fig. 3), showing the facial semicells ornamented by a circle of nine granules surrounding a central one, and semicells with projected angles in short cylindrical processes, with 2 spines at the end.
</paragraph>
<paragraph id="D137642CFFF1AC0B479DFD51FAB6FD2F" blockId="11.[136,1452,158,832]" pageId="11" pageNumber="239">
<bibRefCitation id="B51919DDFFF1AC0B479DFD51FE8EFD5B" author="Coesel, P. F. M." box="[189,347,626,653]" pageId="11" pageNumber="239" pagination="41 - 53" refId="ref7364" refString="Coesel, P. F. M. (1996) Biogeography of desmids. Hydrobiologia 336 (1 - 3): 41 - 53. https: // doi. org / 10.1007 / BF 00010818" type="journal article" year="1996">Coesel (1996)</bibRefCitation>
, analyzing the biogeography of desmids, commented the possibility that
<taxonomicName id="16881FAFFFF1AC0B4359FD51FAB5FD5A" authorityName="Nordstedt" authorityYear="1870" box="[1145,1376,626,652]" class="Conjugatophyceae" family="Desmidiaceae" genus="Xanthidium" kingdom="Plantae" order="Zygnematales" pageId="11" pageNumber="239" phylum="Charophyta" rank="species" species="trilobum">
<emphasis id="E3FCB83EFFF1AC0B4359FD51FAB5FD5A" box="[1145,1376,626,652]" italics="true" pageId="11" pageNumber="239">Xanthidium trilobum</emphasis>
</taxonomicName>
and
<taxonomicName id="16881FAFFFF1AC0B42B3FD50FEDAFD66" authorityName="West &amp; G. S. West" authorityYear="1897" class="Conjugatophyceae" family="Desmidiaceae" genus="Xanthidium" kingdom="Plantae" order="Zygnematales" pageId="11" pageNumber="239" phylum="Charophyta" rank="species" species="subtrilobum">
<emphasis id="E3FCB83EFFF1AC0B42B3FD50FEDAFD66" italics="true" pageId="11" pageNumber="239">X. subtrilobum</emphasis>
</taxonomicName>
have been sister taxa, the former reported from South and Central America, whereas the latter known from Africa,
<collectionCode id="B799FCE9FFF1AC0B47FFFD99FF25FD02" box="[223,240,698,724]" country="Sweden" lsid="urn:lsid:biocol.org:col:15668" name="Department of Botany, Swedish Museum of Natural History" pageId="11" pageNumber="239" type="Herbarium">S</collectionCode>
.
<collectionCode id="B799FCE9FFF1AC0B47D3FD99FEDCFD02" box="[243,265,698,724]" country="United Kingdom" lsid="urn:lsid:biocol.org:col:15670" name="Royal Botanic Garden Edinburgh" pageId="11" pageNumber="239" type="Herbarium">E</collectionCode>
. Asia, and
<collectionCode id="B799FCE9FFF1AC0B46A7FD98FE4BFD03" box="[391,414,699,725]" country="China" lsid="urn:lsid:biocol.org:col:13092" name="Nanjing University" pageId="11" pageNumber="239" type="Herbarium">N</collectionCode>
.
<collectingCountry id="A99F24BCFFF1AC0B4689FD99FDC6FD02" box="[425,531,698,724]" name="Australia" pageId="11" pageNumber="239">Australia</collectingCountry>
; and that the differences in morphology between both taxa occurred by supposed allopatric speciation by the dispersal model (colonization) rather than by the vicariance model (fragmentation).
</paragraph>
<paragraph id="D137642CFFF1AC0B479DFC21FDACFC96" blockId="11.[136,1452,158,832]" pageId="11" pageNumber="239">
<taxonomicName id="16881FAFFFF1AC0B479DFC21FE79FCCA" authorityName="Nordstedt" authorityYear="1870" box="[189,428,770,796]" class="Conjugatophyceae" family="Desmidiaceae" genus="Xanthidium" kingdom="Plantae" order="Zygnematales" pageId="11" pageNumber="239" phylum="Charophyta" rank="species" species="trilobum">
<emphasis id="E3FCB83EFFF1AC0B479DFC21FE79FCCA" box="[189,428,770,796]" italics="true" pageId="11" pageNumber="239">Xanthidium trilobum</emphasis>
</taxonomicName>
was the second most common taxon of the genus in the study area and registered in approximately 37% of all analyzed samples.
</paragraph>
</subSubSection>
</treatment>
</document>