443 lines
56 KiB
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443 lines
56 KiB
XML
<document ID-DOI="10.11646/phytotaxa.575.3.1" ID-ISSN="1179-3163" ID-Zenodo-Dep="7431242" checkinTime="1670915127192" checkinUser="plazi" docAuthor="Costa, Lívia F., Wetzel, Carlos E., Maquardt, Gisele C., Zanon, Jaques E., Ector, Luc & Bicudo, Denise C." docDate="2022" docId="0399343DFF8CFFD076ACBD83FAC4F832" docLanguage="en" docName="phytotaxa.575.3.1.pdf" docOrigin="Phytotaxa 575 (3)" docSource="http://dx.doi.org/10.11646/phytotaxa.575.3.1" docStyle="DocumentStyle:96748F8F1B6C902996E134952A3A36B9.5:Phytotaxa.2014-.journal_article" docStyleId="96748F8F1B6C902996E134952A3A36B9" docStyleName="Phytotaxa.2014-.journal_article" docStyleVersion="5" docTitle="Achnanthidium brasiliense L. F. Costa & G. C. Marquardt 2022, sp. nov." docType="treatment" docVersion="3" lastPageNumber="196" masterDocId="FFA04C45FF85FFD97624BD1DFF97FFF6" masterDocTitle="Taxonomy and ecology of Achnanthidium (Bacillariophyta, Achnanthidiaceae) from southeastern Brazil with the description of six new species" masterLastPageNumber="223" masterPageNumber="187" pageNumber="196" updateTime="1670961475714" updateUser="jonas" zenodo-license-figures="UNSPECIFIED" zenodo-license-treatments="UNSPECIFIED">
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<mods:titleInfo>
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<mods:title>Taxonomy and ecology of Achnanthidium (Bacillariophyta, Achnanthidiaceae) from southeastern Brazil with the description of six new species</mods:title>
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<mods:roleTerm>Author</mods:roleTerm>
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<mods:namePart>Costa, Lívia F.</mods:namePart>
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<mods:nameIdentifier type="ORCID">0000-0001-7148-9964</mods:nameIdentifier>
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<mods:affiliation>Instituto de Pesquisas Ambientais (IPA), Department of Biodiversity Conservation, Av. Miguel Estéfano 3687, 04301 - 012 São Paulo, SP, Brazil. & livia. fcosta @ hotmail. com; https: // orcid. org / 0000 - 0001 - 7148 - 9964</mods:affiliation>
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<mods:nameIdentifier type="email">livia.fcosta@hotmail.com</mods:nameIdentifier>
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<mods:name type="personal">
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<mods:roleTerm>Author</mods:roleTerm>
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<mods:namePart>Wetzel, Carlos E.</mods:namePart>
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<mods:nameIdentifier type="ORCID">0000-0001-5330-0494</mods:nameIdentifier>
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<mods:affiliation>Luxembourg Institute of Science and Technology (LIST), Environmental Research and Innovation Department (ERIN), Observatory for Climate, Environment and Biodiversity (OCEB), 41 rue du Brill, 4422 Belvaux, Luxembourg. & carlos. wetzel @ list. lu; https: // orcid. org / 0000 - 0001 - 5330 - 0494</mods:affiliation>
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<mods:nameIdentifier type="email">carlos.wetzel@list.lu</mods:nameIdentifier>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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<mods:namePart>Maquardt, Gisele C.</mods:namePart>
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<mods:nameIdentifier type="ORCID">0000-0002-2721-1487</mods:nameIdentifier>
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<mods:affiliation>Instituto de Pesquisas Ambientais (IPA), Department of Biodiversity Conservation, Av. Miguel Estéfano 3687, 04301 - 012 São Paulo, SP, Brazil. & Universidade Guarulhos, Centro de Pós-Graduação, Pesquisa e Extensão CEPPE, Praça Tereza Cristina 88, 07023070 Guarulhos, SP, Brazil. & giselecmarquardt @ gmail. com; https: // orcid. org / 0000 - 0002 - 2721 - 1487</mods:affiliation>
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<mods:nameIdentifier type="email">giselecmarquardt@gmail.com</mods:nameIdentifier>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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<mods:namePart>Zanon, Jaques E.</mods:namePart>
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<mods:nameIdentifier type="ORCID">0000-0002-9619-4393</mods:nameIdentifier>
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<mods:affiliation>Instituto de Pesquisas Ambientais (IPA), Department of Biodiversity Conservation, Av. Miguel Estéfano 3687, 04301 - 012 São Paulo, SP, Brazil. & jaques. zanon @ gmail. com; https: // orcid. org / 0000 - 0002 - 9619 - 4393</mods:affiliation>
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<mods:nameIdentifier type="email">jaques.zanon@gmail.com</mods:nameIdentifier>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Ector, Luc</mods:namePart>
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<mods:nameIdentifier type="ORCID">0000-0002-4573-9445</mods:nameIdentifier>
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<mods:affiliation>Luxembourg Institute of Science and Technology (LIST), Environmental Research and Innovation Department (ERIN), Observatory for Climate, Environment and Biodiversity (OCEB), 41 rue du Brill, 4422 Belvaux, Luxembourg. & https: // orcid. org / 0000 - 0002 - 4573 - 9445</mods:affiliation>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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<mods:namePart>Bicudo, Denise C.</mods:namePart>
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<mods:nameIdentifier type="ORCID">0000-0002-4248-3261</mods:nameIdentifier>
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<mods:affiliation>Instituto de Pesquisas Ambientais (IPA), Department of Biodiversity Conservation, Av. Miguel Estéfano 3687, 04301 - 012 São Paulo, SP, Brazil. & denisecbicudo @ gmail. com; https: // orcid. org / 0000 - 0002 - 4248 - 3261</mods:affiliation>
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<mods:nameIdentifier type="email">denisecbicudo@gmail.com</mods:nameIdentifier>
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<mods:title>Phytotaxa</mods:title>
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</mods:titleInfo>
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<mods:part>
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<mods:date>2022</mods:date>
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<mods:detail type="pubDate">
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<mods:number>2022-12-13</mods:number>
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<mods:detail type="volume">
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<mods:number>575</mods:number>
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</mods:detail>
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<mods:detail type="issue">
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<mods:number>3</mods:number>
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<mods:start>187</mods:start>
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<mods:end>223</mods:end>
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<mods:url>http://dx.doi.org/10.11646/phytotaxa.575.3.1</mods:url>
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<mods:classification>journal article</mods:classification>
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<mods:identifier type="DOI">10.11646/phytotaxa.575.3.1</mods:identifier>
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<mods:identifier type="ISSN">1179-3163</mods:identifier>
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<mods:identifier type="Zenodo-Dep">7431242</mods:identifier>
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<treatment LSID="urn:lsid:plazi:treatment:0399343DFF8CFFD076ACBD83FAC4F832" httpUri="http://treatment.plazi.org/id/0399343DFF8CFFD076ACBD83FAC4F832" lastPageNumber="196" pageId="9" pageNumber="196">
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<subSubSection box="[136,1014,158,185]" pageId="9" pageNumber="196" type="nomenclature">
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<paragraph blockId="9.[136,1014,158,185]" box="[136,1014,158,185]" pageId="9" pageNumber="196">
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<heading box="[136,1014,158,185]" fontSize="11" level="2" pageId="9" pageNumber="196" reason="3">
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<taxonomicName authority="L.F.Costa & G.C.Marquardt" authorityName="L. F. Costa & G. C. Marquardt" authorityYear="2022" box="[136,772,158,185]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="9" pageNumber="196" phylum="Bacillariophyta" rank="species" species="brasiliense" status="sp. nov.">
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<emphasis bold="true" box="[136,449,158,185]" italics="true" pageId="9" pageNumber="196">Achnanthidium brasiliense</emphasis>
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L.F.Costa & G.C.Marquardt
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</taxonomicName>
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<taxonomicNameLabel box="[779,864,159,184]" pageId="9" pageNumber="196" rank="species">sp. nov.</taxonomicNameLabel>
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</emphasis>
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(
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<figureCitation box="[878,1006,158,184]" captionStart="FIGURES 26–44" captionStartId="11.[136,243,1647,1669]" captionTargetBox="[228,1363,190,1615]" captionTargetId="figure-18@11.[217,1370,190,1622]" captionTargetPageId="11" captionText="FIGURES 26–44. LM and SEM images of Achnanthidium brasiliense sp. nov. from the type (SP-428935) from Tanque Grande reservoir, São Paulo state. Figure 34 corresponds to the holotype. 26–33. LM views of raphe valves. 34–38. LM views of rapheless valves. 39, 40. SEM external view of raphe valves showing striation pattern, axial and central areas. 41. SEM internal view of the raphe valve. 42, 43. SEM external view of the rapheless valves showing striation pattern, axial and central areas. 44. SEM internal view of the rapheless valve. LM scale bar = 10 μm. SEM scale bars indicated in each figure." figureDoi="http://doi.org/10.5281/zenodo.7431252" httpUri="https://zenodo.org/record/7431252/files/figure.png" pageId="9" pageNumber="196">Figs 26–44</figureCitation>
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)
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</heading>
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</paragraph>
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</subSubSection>
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<subSubSection pageId="9" pageNumber="196" type="description">
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<paragraph blockId="9.[136,1452,230,1988]" pageId="9" pageNumber="196">
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<emphasis bold="true" box="[136,312,230,256]" pageId="9" pageNumber="196">Description:—</emphasis>
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LM: Valves linear-lanceolate, with rostrate to subcapitate apices (
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<figureCitation box="[1068,1202,230,256]" captionStart="FIGURES 26–44" captionStartId="11.[136,243,1647,1669]" captionTargetBox="[228,1363,190,1615]" captionTargetId="figure-18@11.[217,1370,190,1622]" captionTargetPageId="11" captionText="FIGURES 26–44. LM and SEM images of Achnanthidium brasiliense sp. nov. from the type (SP-428935) from Tanque Grande reservoir, São Paulo state. Figure 34 corresponds to the holotype. 26–33. LM views of raphe valves. 34–38. LM views of rapheless valves. 39, 40. SEM external view of raphe valves showing striation pattern, axial and central areas. 41. SEM internal view of the raphe valve. 42, 43. SEM external view of the rapheless valves showing striation pattern, axial and central areas. 44. SEM internal view of the rapheless valve. LM scale bar = 10 μm. SEM scale bars indicated in each figure." figureDoi="http://doi.org/10.5281/zenodo.7431252" httpUri="https://zenodo.org/record/7431252/files/figure.png" pageId="9" pageNumber="196">Figs 26–38</figureCitation>
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); 12.3–17.7 µm long, 2.5–2.9 µm wide. Raphe valve: axial area linear to linear-lanceolate, very narrow; central area small, rounded, almost absent, sometimes forming a rectangular fascia reaching one or both sides (
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<figureCitation box="[1017,1152,302,328]" captionStart="FIGURES 26–44" captionStartId="11.[136,243,1647,1669]" captionTargetBox="[228,1363,190,1615]" captionTargetId="figure-18@11.[217,1370,190,1622]" captionTargetPageId="11" captionText="FIGURES 26–44. LM and SEM images of Achnanthidium brasiliense sp. nov. from the type (SP-428935) from Tanque Grande reservoir, São Paulo state. Figure 34 corresponds to the holotype. 26–33. LM views of raphe valves. 34–38. LM views of rapheless valves. 39, 40. SEM external view of raphe valves showing striation pattern, axial and central areas. 41. SEM internal view of the raphe valve. 42, 43. SEM external view of the rapheless valves showing striation pattern, axial and central areas. 44. SEM internal view of the rapheless valve. LM scale bar = 10 μm. SEM scale bars indicated in each figure." figureDoi="http://doi.org/10.5281/zenodo.7431252" httpUri="https://zenodo.org/record/7431252/files/figure.png" pageId="9" pageNumber="196">Figs 26–33</figureCitation>
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). Raphe filiform, straight. Transapical striae slightly radiate throughout the entire valve, becoming denser and more strongly radiate towards the apices (
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<figureCitation box="[223,356,374,400]" captionStart="FIGURES 26–44" captionStartId="11.[136,243,1647,1669]" captionTargetBox="[228,1363,190,1615]" captionTargetId="figure-18@11.[217,1370,190,1622]" captionTargetPageId="11" captionText="FIGURES 26–44. LM and SEM images of Achnanthidium brasiliense sp. nov. from the type (SP-428935) from Tanque Grande reservoir, São Paulo state. Figure 34 corresponds to the holotype. 26–33. LM views of raphe valves. 34–38. LM views of rapheless valves. 39, 40. SEM external view of raphe valves showing striation pattern, axial and central areas. 41. SEM internal view of the raphe valve. 42, 43. SEM external view of the rapheless valves showing striation pattern, axial and central areas. 44. SEM internal view of the rapheless valve. LM scale bar = 10 μm. SEM scale bars indicated in each figure." figureDoi="http://doi.org/10.5281/zenodo.7431252" httpUri="https://zenodo.org/record/7431252/files/figure.png" pageId="9" pageNumber="196">Figs 26–33</figureCitation>
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);
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<quantity box="[378,479,374,400]" metricMagnitude="-1" metricUnit="m" metricValue="7.112" metricValueMax="7.62" metricValueMin="6.604" pageId="9" pageNumber="196" unit="in" value="28.0" valueMax="30.0" valueMin="26.0">26–30 in</quantity>
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10 µm. Rapheless valve: axial area narrow and linear, slightly widening towards the central area; central area absent or narrow lanceolate (
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<figureCitation box="[751,883,410,436]" captionStart="FIGURES 26–44" captionStartId="11.[136,243,1647,1669]" captionTargetBox="[228,1363,190,1615]" captionTargetId="figure-18@11.[217,1370,190,1622]" captionTargetPageId="11" captionText="FIGURES 26–44. LM and SEM images of Achnanthidium brasiliense sp. nov. from the type (SP-428935) from Tanque Grande reservoir, São Paulo state. Figure 34 corresponds to the holotype. 26–33. LM views of raphe valves. 34–38. LM views of rapheless valves. 39, 40. SEM external view of raphe valves showing striation pattern, axial and central areas. 41. SEM internal view of the raphe valve. 42, 43. SEM external view of the rapheless valves showing striation pattern, axial and central areas. 44. SEM internal view of the rapheless valve. LM scale bar = 10 μm. SEM scale bars indicated in each figure." figureDoi="http://doi.org/10.5281/zenodo.7431252" httpUri="https://zenodo.org/record/7431252/files/figure.png" pageId="9" pageNumber="196">Figs 34–38</figureCitation>
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). Transapical striae slightly radiate throughout the entire valve, more spaced in the central area and sometimes lacking one stria unilaterally (
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<figureCitation box="[1142,1274,446,472]" captionStart="FIGURES 26–44" captionStartId="11.[136,243,1647,1669]" captionTargetBox="[228,1363,190,1615]" captionTargetId="figure-18@11.[217,1370,190,1622]" captionTargetPageId="11" captionText="FIGURES 26–44. LM and SEM images of Achnanthidium brasiliense sp. nov. from the type (SP-428935) from Tanque Grande reservoir, São Paulo state. Figure 34 corresponds to the holotype. 26–33. LM views of raphe valves. 34–38. LM views of rapheless valves. 39, 40. SEM external view of raphe valves showing striation pattern, axial and central areas. 41. SEM internal view of the raphe valve. 42, 43. SEM external view of the rapheless valves showing striation pattern, axial and central areas. 44. SEM internal view of the rapheless valve. LM scale bar = 10 μm. SEM scale bars indicated in each figure." figureDoi="http://doi.org/10.5281/zenodo.7431252" httpUri="https://zenodo.org/record/7431252/files/figure.png" pageId="9" pageNumber="196">Figs 34–38</figureCitation>
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||
). Striae become denser towards the apices:
|
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10 µm.
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</paragraph>
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<paragraph blockId="9.[136,1452,230,1988]" pageId="9" pageNumber="196">
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SEM: Raphe terminating after the last stria in the border between the valve face and mantle (
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||
<figureCitation box="[1220,1350,518,544]" captionStart="FIGURES 26–44" captionStartId="11.[136,243,1647,1669]" captionTargetBox="[228,1363,190,1615]" captionTargetId="figure-18@11.[217,1370,190,1622]" captionTargetPageId="11" captionText="FIGURES 26–44. LM and SEM images of Achnanthidium brasiliense sp. nov. from the type (SP-428935) from Tanque Grande reservoir, São Paulo state. Figure 34 corresponds to the holotype. 26–33. LM views of raphe valves. 34–38. LM views of rapheless valves. 39, 40. SEM external view of raphe valves showing striation pattern, axial and central areas. 41. SEM internal view of the raphe valve. 42, 43. SEM external view of the rapheless valves showing striation pattern, axial and central areas. 44. SEM internal view of the rapheless valve. LM scale bar = 10 μm. SEM scale bars indicated in each figure." figureDoi="http://doi.org/10.5281/zenodo.7431252" httpUri="https://zenodo.org/record/7431252/files/figure.png" pageId="9" pageNumber="196">Figs 39, 40</figureCitation>
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||
). Central and terminal raphe fissures straight and slightly expanded (
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||
<figureCitation box="[810,944,553,580]" captionStart="FIGURES 26–44" captionStartId="11.[136,243,1647,1669]" captionTargetBox="[228,1363,190,1615]" captionTargetId="figure-18@11.[217,1370,190,1622]" captionTargetPageId="11" captionText="FIGURES 26–44. LM and SEM images of Achnanthidium brasiliense sp. nov. from the type (SP-428935) from Tanque Grande reservoir, São Paulo state. Figure 34 corresponds to the holotype. 26–33. LM views of raphe valves. 34–38. LM views of rapheless valves. 39, 40. SEM external view of raphe valves showing striation pattern, axial and central areas. 41. SEM internal view of the raphe valve. 42, 43. SEM external view of the rapheless valves showing striation pattern, axial and central areas. 44. SEM internal view of the rapheless valve. LM scale bar = 10 μm. SEM scale bars indicated in each figure." figureDoi="http://doi.org/10.5281/zenodo.7431252" httpUri="https://zenodo.org/record/7431252/files/figure.png" pageId="9" pageNumber="196">Figs 39, 40</figureCitation>
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||
). Striae mainly composed of 2–4 rounded to elongated areolae, sometimes slit-like shaped near the valve margin and becoming denser and wider near the distal ends (
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||
<figureCitation box="[202,334,624,650]" captionStart="FIGURES 26–44" captionStartId="11.[136,243,1647,1669]" captionTargetBox="[228,1363,190,1615]" captionTargetId="figure-18@11.[217,1370,190,1622]" captionTargetPageId="11" captionText="FIGURES 26–44. LM and SEM images of Achnanthidium brasiliense sp. nov. from the type (SP-428935) from Tanque Grande reservoir, São Paulo state. Figure 34 corresponds to the holotype. 26–33. LM views of raphe valves. 34–38. LM views of rapheless valves. 39, 40. SEM external view of raphe valves showing striation pattern, axial and central areas. 41. SEM internal view of the raphe valve. 42, 43. SEM external view of the rapheless valves showing striation pattern, axial and central areas. 44. SEM internal view of the rapheless valve. LM scale bar = 10 μm. SEM scale bars indicated in each figure." figureDoi="http://doi.org/10.5281/zenodo.7431252" httpUri="https://zenodo.org/record/7431252/files/figure.png" pageId="9" pageNumber="196">Figs 39–44</figureCitation>
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||
). Mantle with one row of slit-like areolae (
|
||
<figureCitation box="[812,943,624,650]" captionStart="FIGURES 26–44" captionStartId="11.[136,243,1647,1669]" captionTargetBox="[228,1363,190,1615]" captionTargetId="figure-18@11.[217,1370,190,1622]" captionTargetPageId="11" captionText="FIGURES 26–44. LM and SEM images of Achnanthidium brasiliense sp. nov. from the type (SP-428935) from Tanque Grande reservoir, São Paulo state. Figure 34 corresponds to the holotype. 26–33. LM views of raphe valves. 34–38. LM views of rapheless valves. 39, 40. SEM external view of raphe valves showing striation pattern, axial and central areas. 41. SEM internal view of the raphe valve. 42, 43. SEM external view of the rapheless valves showing striation pattern, axial and central areas. 44. SEM internal view of the rapheless valve. LM scale bar = 10 μm. SEM scale bars indicated in each figure." figureDoi="http://doi.org/10.5281/zenodo.7431252" httpUri="https://zenodo.org/record/7431252/files/figure.png" pageId="9" pageNumber="196">Figs 39, 44</figureCitation>
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).
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</paragraph>
|
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</subSubSection>
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<subSubSection pageId="9" pageNumber="196" type="materials_examined">
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<paragraph blockId="9.[136,1452,230,1988]" pageId="9" pageNumber="196">
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<emphasis bold="true" box="[189,286,659,685]" pageId="9" pageNumber="196">Type:—</emphasis>
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<collectingCountry box="[285,390,659,685]" name="Brazil" pageId="9" pageNumber="196">BRAZIL</collectingCountry>
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.
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<collectingRegion box="[402,580,659,686]" country="Brazil" name="Sao Paulo" pageId="9" pageNumber="196">São Paulo state</collectingRegion>
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:
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<collectingRegion box="[592,709,659,685]" country="Brazil" name="Sao Paulo" pageId="9" pageNumber="196">São Paulo</collectingRegion>
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,
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<collectingMunicipality box="[721,841,659,685]" pageId="9" pageNumber="196">Guarulhos</collectingMunicipality>
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,
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reservoir, epiphython,
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,
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<geoCoordinate box="[136,298,694,721]" degrees="46" direction="west" minutes="27" orientation="longitude" pageId="9" pageNumber="196" precision="15" seconds="31" value="-46.45861">46° 27’ 31” W</geoCoordinate>
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,
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|
||
<collectorName box="[309,448,694,720]" pageId="9" pageNumber="196">S.A.Oliveira</collectorName>
|
||
&
|
||
<collectorName box="[484,618,694,720]" pageId="9" pageNumber="196">D.C.Bicudo</collectorName>
|
||
,
|
||
<date box="[630,827,694,720]" pageId="9" pageNumber="196" value="2014-01-09">
|
||
<collectingDate box="[630,827,694,720]" pageId="9" pageNumber="196" value="2014-01-09">9th January 2014</collectingDate>
|
||
</date>
|
||
</emphasis>
|
||
(
|
||
<typeStatus box="[842,942,694,720]" pageId="9" pageNumber="196">holotype</typeStatus>
|
||
SP-428935! =
|
||
<figureCitation box="[1112,1193,694,720]" captionStart="FIGURES 26–44" captionStartId="11.[136,243,1647,1669]" captionTargetBox="[228,1363,190,1615]" captionTargetId="figure-18@11.[217,1370,190,1622]" captionTargetPageId="11" captionText="FIGURES 26–44. LM and SEM images of Achnanthidium brasiliense sp. nov. from the type (SP-428935) from Tanque Grande reservoir, São Paulo state. Figure 34 corresponds to the holotype. 26–33. LM views of raphe valves. 34–38. LM views of rapheless valves. 39, 40. SEM external view of raphe valves showing striation pattern, axial and central areas. 41. SEM internal view of the raphe valve. 42, 43. SEM external view of the rapheless valves showing striation pattern, axial and central areas. 44. SEM internal view of the rapheless valve. LM scale bar = 10 μm. SEM scale bars indicated in each figure." figureDoi="http://doi.org/10.5281/zenodo.7431252" httpUri="https://zenodo.org/record/7431252/files/figure.png" pageId="9" pageNumber="196">Fig. 34</figureCitation>
|
||
, isotype: BR-4615)
|
||
</materialsCitation>
|
||
.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection box="[189,1255,729,756]" pageId="9" pageNumber="196" type="etymology">
|
||
<paragraph blockId="9.[136,1452,230,1988]" box="[189,1255,729,756]" pageId="9" pageNumber="196">
|
||
<emphasis bold="true" box="[189,356,730,756]" pageId="9" pageNumber="196">Etymology:—</emphasis>
|
||
The specific epithet
|
||
<emphasis box="[584,798,729,755]" italics="true" pageId="9" pageNumber="196">
|
||
<taxonomicName authority="Costa & Wetzel & Maquardt & Zanon & Ector & Bicudo, 2022" authorityName="Costa & Wetzel & Maquardt & Zanon & Ector & Bicudo" authorityYear="2022" box="[584,707,729,755]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="9" pageNumber="196" phylum="Bacillariophyta" rank="species" species="brasiliense" status="sp. nov.">brasiliense</taxonomicName>
|
||
<taxonomicNameLabel box="[713,798,730,755]" pageId="9" pageNumber="196" rank="species">sp. nov.</taxonomicNameLabel>
|
||
</emphasis>
|
||
refers to the country of the
|
||
<typeStatus box="[1110,1158,730,756]" pageId="9" pageNumber="196">type</typeStatus>
|
||
locality.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="9" pageNumber="196" type="discussion">
|
||
<paragraph blockId="9.[136,1452,230,1988]" pageId="9" pageNumber="196">
|
||
<emphasis bold="true" box="[189,486,764,791]" pageId="9" pageNumber="196">Taxonomical remarks:—</emphasis>
|
||
<emphasis box="[487,878,765,791]" italics="true" pageId="9" pageNumber="196">
|
||
<taxonomicName authority="Costa & Wetzel & Maquardt & Zanon & Ector & Bicudo, 2022" authorityName="Costa & Wetzel & Maquardt & Zanon & Ector & Bicudo" authorityYear="2022" box="[487,787,765,791]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="9" pageNumber="196" phylum="Bacillariophyta" rank="species" species="brasiliense" status="sp. nov.">Achnanthidium brasiliense</taxonomicName>
|
||
<taxonomicNameLabel box="[793,878,765,790]" pageId="9" pageNumber="196" rank="species">sp. nov.</taxonomicNameLabel>
|
||
</emphasis>
|
||
resembles
|
||
<taxonomicName authorityName="Czarnecki" authorityYear="1994" baseAuthorityName="Kutzing" box="[1002,1188,765,791]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="9" pageNumber="196" phylum="Bacillariophyta" rank="species" species="minutissimum">
|
||
<emphasis box="[1002,1188,765,791]" italics="true" pageId="9" pageNumber="196">A. minutissimum</emphasis>
|
||
</taxonomicName>
|
||
, however, an important feature in the separation of both taxa are the apices, which are always protracted in
|
||
<emphasis box="[1089,1285,800,826]" italics="true" pageId="9" pageNumber="196">
|
||
<taxonomicName authorityName="Czarnecki" authorityYear="1994" baseAuthorityName="Kutzing" box="[1089,1280,800,826]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="9" pageNumber="196" phylum="Bacillariophyta" rank="species" species="minutissimum">A. minutissimum</taxonomicName>
|
||
.
|
||
</emphasis>
|
||
Observing the illustrations provided by studies of the
|
||
<typeStatus box="[570,618,836,862]" pageId="9" pageNumber="196">type</typeStatus>
|
||
material (
|
||
<bibRefCitation author="Novais, M. H. & Juttner, I. & Van de Vijver, B. & Morais, M. M. & Hoffmann, L. & Ector, L." box="[731,940,835,862]" pageId="9" pageNumber="196" pagination="101 - 139" refId="ref23506" refString="Novais, M. H., Juttner, I., Van de Vijver, B., Morais, M. M., Hoffmann, L. & Ector, L. (2015) Morphological variability within the Achnanthidium minutissimum species complex (Bacillariophyta): comparison between the type material of Achnanthes minutissima and related taxa, and new freshwater Achnanthidium species from Portugal. Phytotaxa 224 (2): 101 - 139. https: // doi. org / 10.11646 / phytotaxa. 224.2.1" type="journal article" year="2015">
|
||
Novais
|
||
<emphasis box="[819,874,835,861]" italics="true" pageId="9" pageNumber="196">et al.</emphasis>
|
||
2015
|
||
</bibRefCitation>
|
||
,
|
||
<bibRefCitation author="Marquardt, G. C. & Costa, L. F. & Bicudo, D. C. & Bicudo, C. E. M. & Blanco, S. & Wetzel, C. E. & Ector, L." box="[950,1195,835,861]" pageId="9" pageNumber="196" pagination="313 - 330" refId="ref22633" refString="Marquardt, G. C., Costa, L. F., Bicudo, D. C., Bicudo, C. E. M., Blanco, S., Wetzel, C. E. & Ector, L. (2017) Type analysis of Achnanthidium minutissimum and A. catenatum and description of A. tropicocatenatum sp. nov. (Bacillariophyta), a common species in Brazilian reservoirs. Plant Ecology and Evolution 150 (3): 313 - 330. https: // doi. org / 10.5091 / plecevo. 2017.1325" type="journal article" year="2017">
|
||
Marquardt
|
||
<emphasis box="[1075,1131,835,861]" italics="true" pageId="9" pageNumber="196">et al.</emphasis>
|
||
2017
|
||
</bibRefCitation>
|
||
) it is possible to notice the stronger curved valves in apices of
|
||
<taxonomicName authorityName="Czarnecki" authorityYear="1994" baseAuthorityName="Kutzing" box="[571,758,871,897]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="9" pageNumber="196" phylum="Bacillariophyta" rank="species" species="minutissimum">
|
||
<emphasis box="[571,758,871,897]" italics="true" pageId="9" pageNumber="196">A. minutissimum</emphasis>
|
||
</taxonomicName>
|
||
, showed by the difficulty in focusing on the apices under LM. Also, in SEM micrographs of
|
||
<taxonomicName authorityName="Czarnecki" authorityYear="1994" baseAuthorityName="Kutzing" box="[482,671,906,932]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="9" pageNumber="196" phylum="Bacillariophyta" rank="species" species="minutissimum">
|
||
<emphasis box="[482,671,906,932]" italics="true" pageId="9" pageNumber="196">A. minutissimum</emphasis>
|
||
</taxonomicName>
|
||
(
|
||
<figureCitation box="[687,841,905,932]" captionStart="FIGURES 2–25" captionStartId="7.[136,243,1919,1941]" captionTargetBox="[341,1250,745,1888]" captionTargetId="figure-202@7.[328,1258,745,1895]" captionTargetPageId="7" captionText="FIGURES 2–25. LM and SEM images of Achnanthidium acutum sp. nov. from type material (SP-427898), Rio Grande reservoir, São Paulo state. Figure 17 corresponds to the holotype. 2–12. LM views of raphe valves. 13–20. LM views of rapheless valves. 21. SEM external view of raphe valves showing striation pattern, axial and central areas. 22. SEM external detail of the distal raphe end. 23. SEM external view of the rapheless valve showing striation pattern, axial and central areas. 24. SEM internal view of the raphe valve. 25. SEM internal view of the rapheless valve. LM scale bar = 10 μm. SEM scale bars indicated in each figure." figureDoi="http://doi.org/10.5281/zenodo.7431246" httpUri="https://zenodo.org/record/7431246/files/figure.png" pageId="9" pageNumber="196">Fig. 7B, C, E</figureCitation>
|
||
in
|
||
<bibRefCitation author="Marquardt, G. C. & Costa, L. F. & Bicudo, D. C. & Bicudo, C. E. M. & Blanco, S. & Wetzel, C. E. & Ector, L." box="[880,1134,905,932]" pageId="9" pageNumber="196" pagination="313 - 330" refId="ref22633" refString="Marquardt, G. C., Costa, L. F., Bicudo, D. C., Bicudo, C. E. M., Blanco, S., Wetzel, C. E. & Ector, L. (2017) Type analysis of Achnanthidium minutissimum and A. catenatum and description of A. tropicocatenatum sp. nov. (Bacillariophyta), a common species in Brazilian reservoirs. Plant Ecology and Evolution 150 (3): 313 - 330. https: // doi. org / 10.5091 / plecevo. 2017.1325" type="journal article" year="2017">
|
||
Marquardt
|
||
<emphasis box="[1007,1065,905,931]" italics="true" pageId="9" pageNumber="196">et al.</emphasis>
|
||
2017
|
||
</bibRefCitation>
|
||
), the araphid valves present a strong curvature following the axial area, a feature not observed in our specimens. Regarding the morphometric features,
|
||
<emphasis box="[241,493,976,1002]" italics="true" pageId="9" pageNumber="196">
|
||
<taxonomicName authority="Costa & Wetzel & Maquardt & Zanon & Ector & Bicudo, 2022" authorityName="Costa & Wetzel & Maquardt & Zanon & Ector & Bicudo" authorityYear="2022" box="[241,397,976,1002]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="9" pageNumber="196" phylum="Bacillariophyta" rank="species" species="brasiliense" status="sp. nov.">A. brasiliense</taxonomicName>
|
||
<taxonomicNameLabel box="[406,493,977,1002]" pageId="9" pageNumber="196" rank="species">sp. nov.</taxonomicNameLabel>
|
||
</emphasis>
|
||
presents a lower stria density than the German
|
||
<taxonomicName authorityName="Czarnecki" authorityYear="1994" baseAuthorityName="Kutzing" box="[1044,1233,976,1002]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="9" pageNumber="196" phylum="Bacillariophyta" rank="species" species="minutissimum">
|
||
<emphasis box="[1044,1233,976,1002]" italics="true" pageId="9" pageNumber="196">A. minutissimum</emphasis>
|
||
</taxonomicName>
|
||
<typeStatus box="[1242,1290,976,1002]" pageId="9" pageNumber="196">type</typeStatus>
|
||
material (30– 35/10 µm,
|
||
<bibRefCitation author="Novais, M. H. & Juttner, I. & Van de Vijver, B. & Morais, M. M. & Hoffmann, L. & Ector, L." box="[260,470,1011,1038]" pageId="9" pageNumber="196" pagination="101 - 139" refId="ref23506" refString="Novais, M. H., Juttner, I., Van de Vijver, B., Morais, M. M., Hoffmann, L. & Ector, L. (2015) Morphological variability within the Achnanthidium minutissimum species complex (Bacillariophyta): comparison between the type material of Achnanthes minutissima and related taxa, and new freshwater Achnanthidium species from Portugal. Phytotaxa 224 (2): 101 - 139. https: // doi. org / 10.11646 / phytotaxa. 224.2.1" type="journal article" year="2015">
|
||
Novais
|
||
<emphasis box="[347,404,1011,1037]" italics="true" pageId="9" pageNumber="196">et al.</emphasis>
|
||
2015
|
||
</bibRefCitation>
|
||
) and the
|
||
<typeStatus box="[575,623,1012,1038]" pageId="9" pageNumber="196">type</typeStatus>
|
||
material population presented in
|
||
<bibRefCitation author="Marquardt, G. C. & Costa, L. F. & Bicudo, D. C. & Bicudo, C. E. M. & Blanco, S. & Wetzel, C. E. & Ector, L." box="[1002,1270,1011,1037]" pageId="9" pageNumber="196" pagination="313 - 330" refId="ref22633" refString="Marquardt, G. C., Costa, L. F., Bicudo, D. C., Bicudo, C. E. M., Blanco, S., Wetzel, C. E. & Ector, L. (2017) Type analysis of Achnanthidium minutissimum and A. catenatum and description of A. tropicocatenatum sp. nov. (Bacillariophyta), a common species in Brazilian reservoirs. Plant Ecology and Evolution 150 (3): 313 - 330. https: // doi. org / 10.5091 / plecevo. 2017.1325" type="journal article" year="2017">
|
||
Marquardt
|
||
<emphasis box="[1128,1185,1011,1037]" italics="true" pageId="9" pageNumber="196">et al.</emphasis>
|
||
(2017)
|
||
</bibRefCitation>
|
||
, which includes rapheless valves ranging from 30–34 striae in 10 µm in the middle. Although the number of striae in
|
||
<taxonomicName authorityName="Czarnecki" authorityYear="1994" baseAuthorityName="Kutzing" box="[1265,1452,1047,1073]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="9" pageNumber="196" phylum="Bacillariophyta" rank="species" species="minutissimum">
|
||
<emphasis box="[1265,1452,1047,1073]" italics="true" pageId="9" pageNumber="196">A. minutissimum</emphasis>
|
||
</taxonomicName>
|
||
is also denser near the distal ends, the appearance of areolae near the apices in the raphe valves of
|
||
<emphasis italics="true" pageId="9" pageNumber="196">
|
||
<taxonomicName authority="Costa & Wetzel & Maquardt & Zanon & Ector & Bicudo, 2022" authorityName="Costa & Wetzel & Maquardt & Zanon & Ector & Bicudo" authorityYear="2022" box="[1256,1412,1081,1108]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="9" pageNumber="196" phylum="Bacillariophyta" rank="species" species="brasiliense" status="sp. nov.">A. brasiliense</taxonomicName>
|
||
<taxonomicNameLabel pageId="9" pageNumber="196" rank="species">sp. nov.</taxonomicNameLabel>
|
||
</emphasis>
|
||
change in size and shape, becoming larger.
|
||
</paragraph>
|
||
<paragraph blockId="9.[136,1452,230,1988]" pageId="9" pageNumber="196">
|
||
<taxonomicName authorityName="Czarnecki" authorityYear="1994" baseAuthorityName="Kutzing" box="[189,522,1152,1178]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="9" pageNumber="196" phylum="Bacillariophyta" rank="species" species="minutissimum">
|
||
<emphasis box="[189,522,1152,1178]" italics="true" pageId="9" pageNumber="196">Achnanthidium minutissimum</emphasis>
|
||
</taxonomicName>
|
||
is a widely used name for a complex of morphologically similar species worldwide. The morphometric characteristics of all the species that belong to this complex and were observed in this study are summarized in
|
||
<tableCitation box="[312,399,1222,1248]" captionStart="TABLE 4" captionStartId="10.[136,224,493,519]" captionTargetPageId="10" captionText="TABLE 4. Morphometric data from populations found in São Paulo state comparing similar taxa belonging to the A. minutissimum-complex. ND: No data." pageId="9" pageNumber="196">Table 4</tableCitation>
|
||
. In addition, a quantitative shape analysis was carried out to separate
|
||
<emphasis box="[1201,1452,1222,1249]" italics="true" pageId="9" pageNumber="196">
|
||
<taxonomicName authority="Costa & Wetzel & Maquardt & Zanon & Ector & Bicudo, 2022" authorityName="Costa & Wetzel & Maquardt & Zanon & Ector & Bicudo" authorityYear="2022" box="[1201,1357,1222,1249]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="9" pageNumber="196" phylum="Bacillariophyta" rank="species" species="brasiliense" status="sp. nov.">A. brasiliense</taxonomicName>
|
||
<taxonomicNameLabel box="[1365,1452,1223,1248]" pageId="9" pageNumber="196" rank="species">sp. nov.</taxonomicNameLabel>
|
||
</emphasis>
|
||
from
|
||
<taxonomicName authorityName="Czarnecki" authorityYear="1994" box="[197,374,1258,1284]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="9" pageNumber="196" phylum="Bacillariophyta" rank="species" species="minutisimum">
|
||
<emphasis box="[197,374,1258,1284]" italics="true" pageId="9" pageNumber="196">A. minutisimum</emphasis>
|
||
</taxonomicName>
|
||
and its results are discussed below.
|
||
</paragraph>
|
||
<paragraph blockId="9.[136,1452,230,1988]" pageId="9" pageNumber="196">
|
||
Still concerning the similarities among
|
||
<emphasis box="[633,881,1293,1319]" italics="true" pageId="9" pageNumber="196">
|
||
<taxonomicName authority="Costa & Wetzel & Maquardt & Zanon & Ector & Bicudo, 2022" authorityName="Costa & Wetzel & Maquardt & Zanon & Ector & Bicudo" authorityYear="2022" box="[633,788,1293,1319]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="9" pageNumber="196" phylum="Bacillariophyta" rank="species" species="brasiliense" status="sp. nov.">A. brasiliense</taxonomicName>
|
||
<taxonomicNameLabel box="[796,881,1293,1318]" pageId="9" pageNumber="196" rank="species">sp. nov.</taxonomicNameLabel>
|
||
</emphasis>
|
||
and other species,
|
||
<bibRefCitation author="Novais, M. H. & Juttner, I. & Van de Vijver, B. & Morais, M. M. & Hoffmann, L. & Ector, L." box="[1097,1323,1292,1319]" pageId="9" pageNumber="196" pagination="101 - 139" refId="ref23506" refString="Novais, M. H., Juttner, I., Van de Vijver, B., Morais, M. M., Hoffmann, L. & Ector, L. (2015) Morphological variability within the Achnanthidium minutissimum species complex (Bacillariophyta): comparison between the type material of Achnanthes minutissima and related taxa, and new freshwater Achnanthidium species from Portugal. Phytotaxa 224 (2): 101 - 139. https: // doi. org / 10.11646 / phytotaxa. 224.2.1" type="journal article" year="2015">
|
||
Novais
|
||
<emphasis box="[1184,1241,1293,1319]" italics="true" pageId="9" pageNumber="196">et al.</emphasis>
|
||
(2015)
|
||
</bibRefCitation>
|
||
reanalyzed the
|
||
<typeStatus box="[178,226,1328,1354]" pageId="9" pageNumber="196">type</typeStatus>
|
||
materials of two species resembling ours:
|
||
<taxonomicName authority="Kutzing (1844: 75)" authorityName="Kutzing" authorityPageNumber="75" authorityYear="1844" box="[712,1142,1328,1355]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="9" pageNumber="196" phylum="Bacillariophyta" rank="species" species="microcephalum">
|
||
<emphasis box="[712,917,1328,1354]" italics="true" pageId="9" pageNumber="196">A. microcephalum</emphasis>
|
||
<bibRefCitation author="Kutzing, F. T." box="[925,1142,1328,1355]" pageId="9" pageNumber="196" refId="ref22208" refString="Kutzing, F. T. (1844). Die kieselschaligen Bacillarien oder Diatomeen. W. Kohne, Nordhausen. https: // doi. org / 10.5962 / bhl. title. 64360" type="book" year="1844">Kützing (1844: 75)</bibRefCitation>
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName box="[1198,1452,1328,1354]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="9" pageNumber="196" phylum="Bacillariophyta" rank="species" species="neocryptocephalum">
|
||
<emphasis box="[1198,1452,1328,1354]" italics="true" pageId="9" pageNumber="196">A. neocryptocephalum</emphasis>
|
||
</taxonomicName>
|
||
(Grunow in Van Heurck) Novais & Van de Vijver (in
|
||
<bibRefCitation author="Novais, M. H. & Juttner, I. & Van de Vijver, B. & Morais, M. M. & Hoffmann, L. & Ector, L." box="[753,1022,1363,1390]" pageId="9" pageNumber="196" pagination="101 - 139" refId="ref23506" refString="Novais, M. H., Juttner, I., Van de Vijver, B., Morais, M. M., Hoffmann, L. & Ector, L. (2015) Morphological variability within the Achnanthidium minutissimum species complex (Bacillariophyta): comparison between the type material of Achnanthes minutissima and related taxa, and new freshwater Achnanthidium species from Portugal. Phytotaxa 224 (2): 101 - 139. https: // doi. org / 10.11646 / phytotaxa. 224.2.1" type="journal article" year="2015">
|
||
Novais
|
||
<emphasis box="[841,899,1363,1389]" italics="true" pageId="9" pageNumber="196">et al.</emphasis>
|
||
2015: 116
|
||
</bibRefCitation>
|
||
) ≡
|
||
<taxonomicName authority="Grunow" authorityName="Grunow" authorityYear="1880" class="Bacillariophyceae" family="Achnanthaceae" genus="Achnanthes" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="9" pageNumber="196" phylum="Bacillariophyta" rank="variety" species="minutissima" variety="cryptocephala">
|
||
<emphasis box="[1064,1232,1363,1389]" italics="true" pageId="9" pageNumber="196">A. minutissima</emphasis>
|
||
var.
|
||
<emphasis box="[1291,1451,1363,1389]" italics="true" pageId="9" pageNumber="196">cryptocephala</emphasis>
|
||
Grunow
|
||
</taxonomicName>
|
||
(in
|
||
<bibRefCitation author="Van Heurck, H." box="[271,513,1398,1425]" pageId="9" pageNumber="196" pagination="1 - 30" refId="ref25363" refString="Van Heurck, H. (1880) Synopsis des Diatomees de Belgique. Atlas. Anvers, Ducaju et Cie, pls 1 - 30." type="book chapter" year="1880">Van Heurck 1880: 27</bibRefCitation>
|
||
).
|
||
<emphasis box="[532,923,1398,1424]" italics="true" pageId="9" pageNumber="196">
|
||
<taxonomicName authority="Costa & Wetzel & Maquardt & Zanon & Ector & Bicudo, 2022" authorityName="Costa & Wetzel & Maquardt & Zanon & Ector & Bicudo" authorityYear="2022" box="[532,832,1398,1424]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="9" pageNumber="196" phylum="Bacillariophyta" rank="species" species="brasiliense" status="sp. nov.">Achnanthidium brasiliense</taxonomicName>
|
||
<taxonomicNameLabel box="[839,923,1399,1424]" pageId="9" pageNumber="196" rank="species">sp. nov.</taxonomicNameLabel>
|
||
</emphasis>
|
||
presents slender valves than
|
||
<taxonomicName authorityName="Kutzing" authorityYear="1844" box="[1248,1451,1398,1425]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="9" pageNumber="196" phylum="Bacillariophyta" rank="species" species="microcephalum">
|
||
<emphasis box="[1248,1451,1398,1425]" italics="true" pageId="9" pageNumber="196">A. microcephalum</emphasis>
|
||
</taxonomicName>
|
||
and the stria density is also a distinguishing feature (
|
||
<quantity box="[719,819,1433,1460]" metricMagnitude="-1" metricUnit="m" metricValue="7.874" metricValueMax="8.128" metricValueMin="7.62" pageId="9" pageNumber="196" unit="in" value="31.0" valueMax="32.0" valueMin="30.0">30–32 in</quantity>
|
||
10 µm,
|
||
<bibRefCitation author="Novais, M. H. & Juttner, I. & Van de Vijver, B. & Morais, M. M. & Hoffmann, L. & Ector, L." box="[912,1121,1433,1460]" pageId="9" pageNumber="196" pagination="101 - 139" refId="ref23506" refString="Novais, M. H., Juttner, I., Van de Vijver, B., Morais, M. M., Hoffmann, L. & Ector, L. (2015) Morphological variability within the Achnanthidium minutissimum species complex (Bacillariophyta): comparison between the type material of Achnanthes minutissima and related taxa, and new freshwater Achnanthidium species from Portugal. Phytotaxa 224 (2): 101 - 139. https: // doi. org / 10.11646 / phytotaxa. 224.2.1" type="journal article" year="2015">
|
||
Novais
|
||
<emphasis box="[998,1053,1433,1459]" italics="true" pageId="9" pageNumber="196">et al.</emphasis>
|
||
2015
|
||
</bibRefCitation>
|
||
). Moreover, external terminal raphe fissures in
|
||
<taxonomicName authorityName="Kutzing" authorityYear="1844" box="[330,536,1469,1495]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="9" pageNumber="196" phylum="Bacillariophyta" rank="species" species="microcephalum">
|
||
<emphasis box="[330,536,1469,1495]" italics="true" pageId="9" pageNumber="196">A. microcephalum</emphasis>
|
||
</taxonomicName>
|
||
are slightly deflected in the same direction but straight in
|
||
<emphasis box="[1202,1452,1469,1495]" italics="true" pageId="9" pageNumber="196">
|
||
<taxonomicName authority="Costa & Wetzel & Maquardt & Zanon & Ector & Bicudo, 2022" authorityName="Costa & Wetzel & Maquardt & Zanon & Ector & Bicudo" authorityYear="2022" box="[1202,1358,1469,1495]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="9" pageNumber="196" phylum="Bacillariophyta" rank="species" species="brasiliense" status="sp. nov.">A. brasiliense</taxonomicName>
|
||
<taxonomicNameLabel box="[1366,1452,1469,1494]" pageId="9" pageNumber="196" rank="species">sp. nov.</taxonomicNameLabel>
|
||
</emphasis>
|
||
Although the striae are also denser near the apices in both taxa, areolae become wider in
|
||
<emphasis box="[1194,1452,1504,1530]" italics="true" pageId="9" pageNumber="196">
|
||
<taxonomicName authority="Costa & Wetzel & Maquardt & Zanon & Ector & Bicudo, 2022" authorityName="Costa & Wetzel & Maquardt & Zanon & Ector & Bicudo" authorityYear="2022" box="[1194,1352,1504,1530]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="9" pageNumber="196" phylum="Bacillariophyta" rank="species" species="brasiliense" status="sp. nov.">A. brasiliense</taxonomicName>
|
||
<taxonomicNameLabel box="[1363,1452,1505,1530]" pageId="9" pageNumber="196" rank="species">sp. nov.</taxonomicNameLabel>
|
||
</emphasis>
|
||
Regarding
|
||
<taxonomicName box="[261,514,1539,1565]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="9" pageNumber="196" phylum="Bacillariophyta" rank="species" species="neocryptocephalum">
|
||
<emphasis box="[261,514,1539,1565]" italics="true" pageId="9" pageNumber="196">A. neocryptocephalum</emphasis>
|
||
</taxonomicName>
|
||
, their representatives always present a rectangular fascia in the raphe valve, a rare feature in
|
||
<taxonomicName authority="Costa & Wetzel & Maquardt & Zanon & Ector & Bicudo, 2022" authorityName="Costa & Wetzel & Maquardt & Zanon & Ector & Bicudo" authorityYear="2022" box="[253,408,1574,1601]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="9" pageNumber="196" phylum="Bacillariophyta" rank="species" species="brasiliense" status="sp. nov.">
|
||
<emphasis box="[253,408,1574,1601]" italics="true" pageId="9" pageNumber="196">A. brasiliense</emphasis>
|
||
</taxonomicName>
|
||
<taxonomicNameLabel box="[417,504,1575,1601]" pageId="9" pageNumber="196" rank="species">
|
||
<emphasis box="[417,497,1575,1600]" italics="true" pageId="9" pageNumber="196">sp. nov</emphasis>
|
||
.
|
||
</taxonomicNameLabel>
|
||
<taxonomicName authority="Rabenhorst (1861: 1003)" authorityName="Rabenhorst (1861:" authorityPageNumber="1003" authorityYear="1003" box="[513,1046,1574,1600]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="9" pageNumber="196" phylum="Bacillariophyta" rank="species" species="jackii">
|
||
<emphasis box="[513,755,1574,1600]" italics="true" pageId="9" pageNumber="196">Achnanthidium jackii</emphasis>
|
||
<bibRefCitation author="Rabenhorst, L." box="[763,1046,1574,1600]" pageId="9" pageNumber="196" refId="ref24305" refString="Rabenhorst, L. (1861 - 1862) Die Algen Europa's, Fortsetzung der Algen Sachsens, resp. Mittel-Europas. Decades I-CIX, numbers 1 - 1600 (or 1001 - 2600). Dresden." type="book" year="1861">Rabenhorst (1861: 1003)</bibRefCitation>
|
||
</taxonomicName>
|
||
(
|
||
<bibRefCitation author="Rabenhorst, L." box="[1062,1255,1574,1600]" pageId="9" pageNumber="196" refId="ref24305" refString="Rabenhorst, L. (1861 - 1862) Die Algen Europa's, Fortsetzung der Algen Sachsens, resp. Mittel-Europas. Decades I-CIX, numbers 1 - 1600 (or 1001 - 2600). Dresden." type="book" year="1861">Rabenhorst 1861</bibRefCitation>
|
||
–1862) described from “Quellwasser bei Salem” (Municipality of
|
||
<collectingRegion box="[697,991,1609,1636]" country="Germany" name="Baden-Wuerttemberg" pageId="9" pageNumber="196">Baden-Württemberg state</collectingRegion>
|
||
, southern
|
||
<collectingCountry box="[1112,1218,1610,1636]" name="Germany" pageId="9" pageNumber="196">Germany</collectingCountry>
|
||
) was studied in full detail by
|
||
<bibRefCitation author="Van de Vijver, B. & Wetzel, C. E. & Ector, L." box="[238,536,1645,1671]" pageId="9" pageNumber="196" pagination="1 - 4" refId="ref25319" refString="Van de Vijver, B., Wetzel, C. E. & Ector, L. (2018) Analysis of the type material of Achnanthidium jackii Rabenhorst (Bacillariophyta, Achnanthidiaceae). Notulae Algarum 55: 1 - 4." type="journal article" year="2018">
|
||
Van de Vijver
|
||
<emphasis box="[397,452,1645,1671]" italics="true" pageId="9" pageNumber="196">et al.</emphasis>
|
||
(2018)
|
||
</bibRefCitation>
|
||
, has priority over
|
||
<taxonomicName box="[737,988,1645,1671]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="9" pageNumber="196" phylum="Bacillariophyta" rank="species" species="neocryptocephalum">
|
||
<emphasis box="[737,988,1645,1671]" italics="true" pageId="9" pageNumber="196">A. neocryptocephalum</emphasis>
|
||
</taxonomicName>
|
||
, a new name for
|
||
<taxonomicName authorityName="Grunow" authorityYear="1880" class="Bacillariophyceae" family="Achnanthaceae" genus="Achnanthes" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="9" pageNumber="196" phylum="Bacillariophyta" rank="variety" species="minutissima" variety="cryptocephala">
|
||
<emphasis box="[1179,1451,1645,1671]" italics="true" pageId="9" pageNumber="196">Achnanthes minutissima</emphasis>
|
||
var.
|
||
<emphasis box="[184,344,1680,1706]" italics="true" pageId="9" pageNumber="196">cryptocephala</emphasis>
|
||
</taxonomicName>
|
||
, thus is also a taxonomic synonym of
|
||
<taxonomicName authorityName="Rabenhorst (1861:" authorityYear="1003" box="[775,868,1680,1706]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="9" pageNumber="196" phylum="Bacillariophyta" rank="species" species="jackii">
|
||
<emphasis box="[775,868,1680,1706]" italics="true" pageId="9" pageNumber="196">A. jackii</emphasis>
|
||
</taxonomicName>
|
||
.
|
||
</paragraph>
|
||
<paragraph blockId="9.[136,1452,230,1988]" pageId="9" pageNumber="196">
|
||
<taxonomicName authority="Le Cohu & Peres" authorityName="Le Cohu & Peres" box="[189,641,1715,1742]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="9" pageNumber="196" phylum="Bacillariophyta" rank="species" species="barbei">
|
||
<emphasis box="[189,440,1715,1741]" italics="true" pageId="9" pageNumber="196">Achnanthidium barbei</emphasis>
|
||
Le Cohu & Pérès
|
||
</taxonomicName>
|
||
(in
|
||
<bibRefCitation author="Peres, F. & Le Cohu, R. & Delmont, D." box="[685,929,1715,1741]" pageId="9" pageNumber="196" pagination="387 - 397" refId="ref23813" refString="Peres, F., Le Cohu, R. & Delmont, D. (2014) Achnanthidium barbei sp. nov. and Achnanthidium costei sp. nov., two new diatoms from French rivers. Diatom Research 29 (4): 387 - 397. https: // doi. org / 10.1080 / 0269249 X. 2014.890956" type="journal article" year="2014">
|
||
Pérès
|
||
<emphasis box="[752,809,1715,1741]" italics="true" pageId="9" pageNumber="196">et al.</emphasis>
|
||
2014: 388
|
||
</bibRefCitation>
|
||
) also belongs to the
|
||
<taxonomicName authorityName="Czarnecki" authorityYear="1994" baseAuthorityName="Kutzing" box="[1159,1346,1715,1741]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="9" pageNumber="196" phylum="Bacillariophyta" rank="species" species="minutissimum">
|
||
<emphasis box="[1159,1346,1715,1741]" italics="true" pageId="9" pageNumber="196">A. minutissimum</emphasis>
|
||
</taxonomicName>
|
||
-complex and presents a similar morphology. It never forms a fascia in the central area of the raphe valve and has protracted apices (
|
||
<bibRefCitation author="Peres, F. & Le Cohu, R. & Delmont, D." box="[221,414,1785,1812]" pageId="9" pageNumber="196" pagination="387 - 397" refId="ref23813" refString="Peres, F., Le Cohu, R. & Delmont, D. (2014) Achnanthidium barbei sp. nov. and Achnanthidium costei sp. nov., two new diatoms from French rivers. Diatom Research 29 (4): 387 - 397. https: // doi. org / 10.1080 / 0269249 X. 2014.890956" type="journal article" year="2014">
|
||
Pérès
|
||
<emphasis box="[290,346,1785,1811]" italics="true" pageId="9" pageNumber="196">et al.</emphasis>
|
||
2014
|
||
</bibRefCitation>
|
||
).
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="9" pageNumber="196" type="distribution">
|
||
<paragraph blockId="9.[136,1452,230,1988]" pageId="9" pageNumber="196">
|
||
<emphasis bold="true" box="[189,699,1820,1847]" pageId="9" pageNumber="196">Distribution and ecological information:—</emphasis>
|
||
In our dataset,
|
||
<emphasis box="[865,1111,1821,1847]" italics="true" pageId="9" pageNumber="196">
|
||
<taxonomicName authority="Costa & Wetzel & Maquardt & Zanon & Ector & Bicudo, 2022" authorityName="Costa & Wetzel & Maquardt & Zanon & Ector & Bicudo" authorityYear="2022" box="[865,1019,1821,1847]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="9" pageNumber="196" phylum="Bacillariophyta" rank="species" species="brasiliense" status="sp. nov.">A. brasiliense</taxonomicName>
|
||
<taxonomicNameLabel box="[1026,1111,1821,1846]" pageId="9" pageNumber="196" rank="species">sp. nov.</taxonomicNameLabel>
|
||
</emphasis>
|
||
was the most frequent species (63 % of occurrence) observed in periphytic, planktonic and surface sediment assemblages (highest abundance: 72 % in
|
||
<accessionNumber box="[164,284,1891,1918]" httpUri="http://www.ncbi.nlm.nih.gov/nucleotide/SP469485" pageId="9" pageNumber="196">SP469485</accessionNumber>
|
||
). In all these habitats, the ecological preference of the species was for neutral waters (pH optimum of 6.8– 7.2), medium to high cond. (optimum of 64.3–148.7 μS∙
|
||
<superScript attach="left" box="[767,817,1926,1952]" fontSize="6" pageId="9" pageNumber="196">cm-1</superScript>
|
||
) and mesotrophic conditions (TP optimum of 25.5–46.4 μg∙L-
|
||
<superScript attach="right" box="[196,203,1961,1975]" fontSize="6" pageId="9" pageNumber="196">1</superScript>
|
||
and TN optimum of 596–1303.8 μg∙L-
|
||
<superScript attach="right" box="[636,643,1961,1975]" fontSize="6" pageId="9" pageNumber="196">1</superScript>
|
||
). However, it also occurred in enriched waters (TP> 50 μg∙L-
|
||
<superScript attach="right" box="[1339,1346,1961,1975]" fontSize="6" pageId="9" pageNumber="196">1</superScript>
|
||
).
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |