194 lines
35 KiB
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194 lines
35 KiB
XML
<document ID-DOI="10.11646/phytotaxa.592.1.1" ID-ISSN="1179-3163" ID-Zenodo-Dep="7835613" IM.bibliography_approvedBy="tatiana" IM.illustrations_approvedBy="tatiana" IM.tables_requiresApprovalFor="existingObjects" IM.treatments_approvedBy="tatiana" approvalRequired="3" approvalRequired_for_textStreams="3" checkinTime="1681723091593" checkinUser="plazi" docAuthor="Morales, Eduardo A. & Manoylov, Kalina M." docDate="2023" docId="9A0E87F0FF91FFC7FF2CD6CCFBBCFC3F" docLanguage="en" docName="phytotaxa.592.1.1.pdf" docOrigin="Phytotaxa 592 (1)" docSource="http://dx.doi.org/10.1094/PDIS-04-22-0755-PDN" docStyle="DocumentStyle:96748F8F1B6C902996E134952A3A36B9.5:Phytotaxa.2014-.journal_article" docStyleId="96748F8F1B6C902996E134952A3A36B9" docStyleName="Phytotaxa.2014-.journal_article" docStyleVersion="5" docTitle="Achnanthidium lucectorii E. Morales & Manoylov 2023, sp. nov." docType="treatment" docVersion="1" lastPageNumber="6" masterDocId="6637FF88FF93FFC2FFA4D17CFFFCFFB6" masterDocTitle="Achnanthidium lucectorii sp. nov. and A. enigmaticum sp. nov., novel diatoms (Bacillariophyta, Achnanthidiaceae) from Texas, U. S. A." masterLastPageNumber="20" masterPageNumber="1" pageNumber="3" updateTime="1681902928579" updateUser="tatiana" zenodo-license-figures="UNSPECIFIED" zenodo-license-treatments="UNSPECIFIED">
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<mods:titleInfo>
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<mods:title>Achnanthidium lucectorii sp. nov. and A. enigmaticum sp. nov., novel diatoms (Bacillariophyta, Achnanthidiaceae) from Texas, U. S. A.</mods:title>
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<mods:name type="personal">
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<mods:roleTerm>Author</mods:roleTerm>
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<mods:namePart>Morales, Eduardo A.</mods:namePart>
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<mods:nameIdentifier type="ORCID">0000-0001-5998-4831</mods:nameIdentifier>
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<mods:affiliation>Water Laboratory, University of Évora, P. I. T. E. Rua da Barba Rala No. 1, 7005 - 345 Évora, Portugal. & Institute of Earth Sciences - ICT, University of Évora, Rua Romão, Ramalho 59, 7000 - 671 Évora, Portugal.</mods:affiliation>
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<mods:nameIdentifier type="email">edu_mora123@outlook.com</mods:nameIdentifier>
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</mods:name>
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<mods:name type="personal">
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<mods:roleTerm>Author</mods:roleTerm>
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<mods:namePart>Manoylov, Kalina M.</mods:namePart>
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<mods:nameIdentifier type="ORCID">0000-0003-2599-2301</mods:nameIdentifier>
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<mods:affiliation>Department of Biological and Environmental Sciences, Georgia College & State University, Milledgeville, Georgia, USA. edu _ mora 123 @ outlook. com; https: // orcid. org / 0000 - 0001 - 5998 - 4831 & kalina. manoylov @ gcsu. edu; https: // orcid. org / 0000 - 0003 - 2599 - 2301</mods:affiliation>
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<mods:nameIdentifier type="email">kalina.manoylov@gcsu.edu</mods:nameIdentifier>
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<mods:typeOfResource>text</mods:typeOfResource>
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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>2023</mods:date>
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<mods:detail type="pubDate">
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<mods:number>2023-04-13</mods:number>
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</mods:detail>
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<mods:detail type="volume">
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<mods:number>592</mods:number>
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</mods:detail>
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<mods:detail type="issue">
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<mods:number>1</mods:number>
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<mods:extent unit="page">
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<mods:start>1</mods:start>
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<mods:end>20</mods:end>
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</mods:extent>
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<mods:location>
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<mods:url>http://dx.doi.org/10.1094/PDIS-04-22-0755-PDN</mods:url>
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</mods:location>
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<mods:classification>journal article</mods:classification>
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<mods:identifier type="DOI">10.11646/phytotaxa.592.1.1</mods:identifier>
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<mods:identifier type="ISSN">1179-3163</mods:identifier>
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<mods:identifier type="Zenodo-Dep">7835613</mods:identifier>
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<treatment LSID="urn:lsid:plazi:treatment:9A0E87F0FF91FFC7FF2CD6CCFBBCFC3F" httpUri="http://treatment.plazi.org/id/9A0E87F0FF91FFC7FF2CD6CCFBBCFC3F" lastPageId="5" lastPageNumber="6" pageId="2" pageNumber="3">
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<subSubSection box="[136,1166,1968,1995]" pageId="2" pageNumber="3" type="nomenclature">
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<paragraph blockId="2.[136,1452,1968,2067]" box="[136,1166,1968,1995]" pageId="2" pageNumber="3">
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<taxonomicName authority="E.Morales & Manoylov" authorityName="E. Morales & Manoylov" authorityYear="2023" box="[136,722,1968,1995]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="2" pageNumber="3" phylum="Bacillariophyta" rank="species" species="lucectorii" status="sp. nov.">
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<emphasis bold="true" box="[136,722,1968,1995]" pageId="2" pageNumber="3">
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<emphasis bold="true" box="[136,434,1968,1995]" italics="true" pageId="2" pageNumber="3">Achnanthidium lucectorii</emphasis>
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E.Morales & Manoylov
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</emphasis>
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</taxonomicName>
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<emphasis box="[729,814,1969,1994]" italics="true" pageId="2" pageNumber="3">
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<taxonomicNameLabel box="[729,814,1969,1994]" pageId="2" pageNumber="3" rank="species">sp. nov.</taxonomicNameLabel>
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</emphasis>
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<figureCitation box="[820,931,1968,1994]" captionStart="FIGURES 1–36" captionStartId="3.[136,243,1946,1968]" captionTargetBox="[155,1431,317,1915]" captionTargetId="figure-68@3.[151,1436,317,1921]" captionTargetPageId="3" captionText="FIGURES 1–36. Achnanthidium lucectorii sp. nov. (LM) from type material. 1–21. RV views arranged by size. Notice bow-tie fascia and stauros in central area, Fig. 10 corresponds to the holotype. 22, 23. Girdle views of two complete frustules. 24–36. SV arranged in size diminution series. Notice lanceolate axial area and clearly seen striae. Scale bar = 10 μm." figureDoi="http://doi.org/10.5281/zenodo.7835615" httpUri="https://zenodo.org/record/7835615/files/figure.png" pageId="2" pageNumber="3">Figs 1–36</figureCitation>
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(LM), 37–42 (SEM)
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</paragraph>
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</subSubSection>
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<subSubSection lastPageId="5" lastPageNumber="6" pageId="2" pageNumber="3" type="description">
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<paragraph blockId="2.[136,1452,1968,2067]" lastBlockId="3.[136,1452,158,257]" lastPageId="3" lastPageNumber="4" pageId="2" pageNumber="3">
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<emphasis bold="true" box="[136,312,2004,2030]" pageId="2" pageNumber="3">Description:—</emphasis>
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Frustules apically sigmoidally arched (in an open V-shaped girdle view), producing a raphe valve with a concave valve center (
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<figureCitation box="[462,593,2040,2066]" captionStart="FIGURES 1–36" captionStartId="3.[136,243,1946,1968]" captionTargetBox="[155,1431,317,1915]" captionTargetId="figure-68@3.[151,1436,317,1921]" captionTargetPageId="3" captionText="FIGURES 1–36. Achnanthidium lucectorii sp. nov. (LM) from type material. 1–21. RV views arranged by size. Notice bow-tie fascia and stauros in central area, Fig. 10 corresponds to the holotype. 22, 23. Girdle views of two complete frustules. 24–36. SV arranged in size diminution series. Notice lanceolate axial area and clearly seen striae. Scale bar = 10 μm." figureDoi="http://doi.org/10.5281/zenodo.7835615" httpUri="https://zenodo.org/record/7835615/files/figure.png" pageId="2" pageNumber="3">Figs 22, 23</figureCitation>
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). Valves elliptic with swollen central area and subcapitate apices (
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<figureCitation box="[1332,1451,2040,2066]" captionStart="FIGURES 1–36" captionStartId="3.[136,243,1946,1968]" captionTargetBox="[155,1431,317,1915]" captionTargetId="figure-68@3.[151,1436,317,1921]" captionTargetPageId="3" captionText="FIGURES 1–36. Achnanthidium lucectorii sp. nov. (LM) from type material. 1–21. RV views arranged by size. Notice bow-tie fascia and stauros in central area, Fig. 10 corresponds to the holotype. 22, 23. Girdle views of two complete frustules. 24–36. SV arranged in size diminution series. Notice lanceolate axial area and clearly seen striae. Scale bar = 10 μm." figureDoi="http://doi.org/10.5281/zenodo.7835615" httpUri="https://zenodo.org/record/7835615/files/figure.png" pageId="2" pageNumber="3">Figs 1–21,</figureCitation>
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24–36), less noticeable in smaller valves. Length: 10.2–35.7 µm, width: 3.1–4.3 µm, stria density 26–28 (up to 30 toward apices) in 10 µm in RV, and 26–27 (up to 32 toward apices) in 10 µm in SV, 1–4 areolae per stria on both valves. Hymenes, girdle bands and plastids not determined.
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</paragraph>
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<caption ID-DOI="http://doi.org/10.5281/zenodo.7835615" ID-Zenodo-Dep="7835615" httpUri="https://zenodo.org/record/7835615/files/figure.png" pageId="3" pageNumber="4" startId="3.[136,243,1946,1968]" targetBox="[155,1431,317,1915]" targetPageId="3">
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<paragraph blockId="3.[136,1452,1946,2040]" pageId="3" pageNumber="4">
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<emphasis bold="true" box="[136,302,1946,1968]" pageId="3" pageNumber="4">FIGURES 1–36.</emphasis>
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<emphasis box="[308,630,1946,1968]" italics="true" pageId="3" pageNumber="4">
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<taxonomicName authority="Morales & Manoylov, 2023" authorityName="E. Morales & Manoylov" authorityYear="2023" box="[308,552,1946,1967]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="3" pageNumber="4" phylum="Bacillariophyta" rank="species" species="lucectorii" status="sp. nov.">Achnanthidium lucectorii</taxonomicName>
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<taxonomicNameLabel box="[557,630,1947,1968]" pageId="3" pageNumber="4" rank="species">sp. nov.</taxonomicNameLabel>
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</emphasis>
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(LM) from type material. 1–21. RV views arranged by size. Notice bow-tie fascia and stauros in central area, Fig. 10 corresponds to the holotype. 22, 23. Girdle views of two complete frustules. 24–36. SV arranged in size diminution series. Notice lanceolate axial area and clearly seen striae. Scale bar = 10 μm.
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</paragraph>
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</caption>
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<caption ID-DOI="http://doi.org/10.5281/zenodo.7835617" ID-Zenodo-Dep="7835617" httpUri="https://zenodo.org/record/7835617/files/figure.png" pageId="4" pageNumber="5" startId="4.[136,243,1632,1654]" targetBox="[158,1430,190,1607]" targetPageId="4">
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<paragraph blockId="4.[136,1452,1632,1798]" pageId="4" pageNumber="5">
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<emphasis bold="true" box="[136,317,1632,1654]" pageId="4" pageNumber="5">FIGURES 37–42.</emphasis>
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<emphasis box="[325,656,1632,1654]" italics="true" pageId="4" pageNumber="5">
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<taxonomicName authority="Morales & Manoylov, 2023" authorityName="E. Morales & Manoylov" authorityYear="2023" box="[325,572,1632,1653]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="4" pageNumber="5" phylum="Bacillariophyta" rank="species" species="lucectorii" status="sp. nov.">Achnanthidium lucectorii</taxonomicName>
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<taxonomicNameLabel box="[580,656,1633,1654]" pageId="4" pageNumber="5" rank="species">sp. nov.</taxonomicNameLabel>
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</emphasis>
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(SEM) from type material. 37–39. RV in external view. Striae are more densely packed toward valve apices (open arrows in 38), Figure 39 shows straight distal ends of raphe extending beyond the striation region (white arrows). 40. Internal view of RV showing small capitate termini of proximal raphe ends (white arrows) and valve apex low thickening attached to low helictoglossum (black arrow). 41, 42. External view of RV and internal view of SV. Figure 42 shows internal view of SV. Scale bars = 5 μm.
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</paragraph>
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</caption>
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<paragraph blockId="4.[136,1452,1844,2087]" lastBlockId="5.[136,1452,158,905]" lastPageId="5" lastPageNumber="6" pageId="4" pageNumber="5">
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RV with narrow, lanceolate, raised axial area (externally [
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<figureCitation box="[847,980,1844,1870]" captionStart="FIGURES 37–42" captionStartId="4.[136,243,1632,1654]" captionTargetBox="[158,1430,190,1607]" captionTargetId="figure-26@4.[158,1430,190,1607]" captionTargetPageId="4" captionText="FIGURES 37–42. Achnanthidium lucectorii sp. nov. (SEM) from type material. 37–39. RV in external view. Striae are more densely packed toward valve apices (open arrows in 38), Figure 39 shows straight distal ends of raphe extending beyond the striation region (white arrows). 40. Internal view of RV showing small capitate termini of proximal raphe ends (white arrows) and valve apex low thickening attached to low helictoglossum (black arrow). 41, 42. External view of RV and internal view of SV. Figure 42 shows internal view of SV. Scale bars = 5 μm." figureDoi="http://doi.org/10.5281/zenodo.7835617" httpUri="https://zenodo.org/record/7835617/files/figure.png" pageId="4" pageNumber="5">Figs 37–39</figureCitation>
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] and internally [
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<figureCitation box="[1168,1256,1844,1870]" captionStart="FIGURES 37–42" captionStartId="4.[136,243,1632,1654]" captionTargetBox="[158,1430,190,1607]" captionTargetId="figure-26@4.[158,1430,190,1607]" captionTargetPageId="4" captionText="FIGURES 37–42. Achnanthidium lucectorii sp. nov. (SEM) from type material. 37–39. RV in external view. Striae are more densely packed toward valve apices (open arrows in 38), Figure 39 shows straight distal ends of raphe extending beyond the striation region (white arrows). 40. Internal view of RV showing small capitate termini of proximal raphe ends (white arrows) and valve apex low thickening attached to low helictoglossum (black arrow). 41, 42. External view of RV and internal view of SV. Figure 42 shows internal view of SV. Scale bars = 5 μm." figureDoi="http://doi.org/10.5281/zenodo.7835617" httpUri="https://zenodo.org/record/7835617/files/figure.png" pageId="4" pageNumber="5">Fig. 40</figureCitation>
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]), tapering into a pointy end at valve apex, becoming enlarged in central area where it connects with the central stauros (
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<figureCitation box="[1307,1439,1880,1906]" captionStart="FIGURES 37–42" captionStartId="4.[136,243,1632,1654]" captionTargetBox="[158,1430,190,1607]" captionTargetId="figure-26@4.[158,1430,190,1607]" captionTargetPageId="4" captionText="FIGURES 37–42. Achnanthidium lucectorii sp. nov. (SEM) from type material. 37–39. RV in external view. Striae are more densely packed toward valve apices (open arrows in 38), Figure 39 shows straight distal ends of raphe extending beyond the striation region (white arrows). 40. Internal view of RV showing small capitate termini of proximal raphe ends (white arrows) and valve apex low thickening attached to low helictoglossum (black arrow). 41, 42. External view of RV and internal view of SV. Figure 42 shows internal view of SV. Scale bars = 5 μm." figureDoi="http://doi.org/10.5281/zenodo.7835617" httpUri="https://zenodo.org/record/7835617/files/figure.png" pageId="4" pageNumber="5">Figs 37–40</figureCitation>
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). Central stauros with bow-tie shaped fascia (rarely apically rhomboid in some larger valves) (
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<figureCitation box="[1188,1305,1916,1942]" captionStart="FIGURES 1–36" captionStartId="3.[136,243,1946,1968]" captionTargetBox="[155,1431,317,1915]" captionTargetId="figure-68@3.[151,1436,317,1921]" captionTargetPageId="3" captionText="FIGURES 1–36. Achnanthidium lucectorii sp. nov. (LM) from type material. 1–21. RV views arranged by size. Notice bow-tie fascia and stauros in central area, Fig. 10 corresponds to the holotype. 22, 23. Girdle views of two complete frustules. 24–36. SV arranged in size diminution series. Notice lanceolate axial area and clearly seen striae. Scale bar = 10 μm." figureDoi="http://doi.org/10.5281/zenodo.7835615" httpUri="https://zenodo.org/record/7835615/files/figure.png" pageId="4" pageNumber="5">Figs 1–21</figureCitation>
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), with raised central nodule in external view (
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<figureCitation box="[493,663,1952,1978]" captionStart="FIGURES 37–42" captionStartId="4.[136,243,1632,1654]" captionTargetBox="[158,1430,190,1607]" captionTargetId="figure-26@4.[158,1430,190,1607]" captionTargetPageId="4" captionText="FIGURES 37–42. Achnanthidium lucectorii sp. nov. (SEM) from type material. 37–39. RV in external view. Striae are more densely packed toward valve apices (open arrows in 38), Figure 39 shows straight distal ends of raphe extending beyond the striation region (white arrows). 40. Internal view of RV showing small capitate termini of proximal raphe ends (white arrows) and valve apex low thickening attached to low helictoglossum (black arrow). 41, 42. External view of RV and internal view of SV. Figure 42 shows internal view of SV. Scale bars = 5 μm." figureDoi="http://doi.org/10.5281/zenodo.7835617" httpUri="https://zenodo.org/record/7835617/files/figure.png" pageId="4" pageNumber="5">Figs 37–39, 41</figureCitation>
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), flat in internal view (
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<figureCitation box="[913,997,1952,1978]" captionStart="FIGURES 37–42" captionStartId="4.[136,243,1632,1654]" captionTargetBox="[158,1430,190,1607]" captionTargetId="figure-26@4.[158,1430,190,1607]" captionTargetPageId="4" captionText="FIGURES 37–42. Achnanthidium lucectorii sp. nov. (SEM) from type material. 37–39. RV in external view. Striae are more densely packed toward valve apices (open arrows in 38), Figure 39 shows straight distal ends of raphe extending beyond the striation region (white arrows). 40. Internal view of RV showing small capitate termini of proximal raphe ends (white arrows) and valve apex low thickening attached to low helictoglossum (black arrow). 41, 42. External view of RV and internal view of SV. Figure 42 shows internal view of SV. Scale bars = 5 μm." figureDoi="http://doi.org/10.5281/zenodo.7835617" httpUri="https://zenodo.org/record/7835617/files/figure.png" pageId="4" pageNumber="5">Fig. 40</figureCitation>
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). Virgae wider than striae except at valve ends where they become slender and rod-shaped, straight or zig-zagged due to polygonal shape of areolae (
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<figureCitation captionStart="FIGURES 37–42" captionStartId="4.[136,243,1632,1654]" captionTargetBox="[158,1430,190,1607]" captionTargetId="figure-26@4.[158,1430,190,1607]" captionTargetPageId="4" captionText="FIGURES 37–42. Achnanthidium lucectorii sp. nov. (SEM) from type material. 37–39. RV in external view. Striae are more densely packed toward valve apices (open arrows in 38), Figure 39 shows straight distal ends of raphe extending beyond the striation region (white arrows). 40. Internal view of RV showing small capitate termini of proximal raphe ends (white arrows) and valve apex low thickening attached to low helictoglossum (black arrow). 41, 42. External view of RV and internal view of SV. Figure 42 shows internal view of SV. Scale bars = 5 μm." figureDoi="http://doi.org/10.5281/zenodo.7835617" httpUri="https://zenodo.org/record/7835617/files/figure.png" pageId="4" pageNumber="5">Figs 38, 39</figureCitation>
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). Virgae lower with respect to axial area and at same level as striae in internal and external views (
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<figureCitation box="[1306,1439,2024,2050]" captionStart="FIGURES 37–42" captionStartId="4.[136,243,1632,1654]" captionTargetBox="[158,1430,190,1607]" captionTargetId="figure-26@4.[158,1430,190,1607]" captionTargetPageId="4" captionText="FIGURES 37–42. Achnanthidium lucectorii sp. nov. (SEM) from type material. 37–39. RV in external view. Striae are more densely packed toward valve apices (open arrows in 38), Figure 39 shows straight distal ends of raphe extending beyond the striation region (white arrows). 40. Internal view of RV showing small capitate termini of proximal raphe ends (white arrows) and valve apex low thickening attached to low helictoglossum (black arrow). 41, 42. External view of RV and internal view of SV. Figure 42 shows internal view of SV. Scale bars = 5 μm." figureDoi="http://doi.org/10.5281/zenodo.7835617" httpUri="https://zenodo.org/record/7835617/files/figure.png" pageId="4" pageNumber="5">Figs 37–40</figureCitation>
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). Raphe uniformly filiform and straight, with proximal ends opposite to each other (
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<figureCitation box="[1053,1183,2060,2086]" captionStart="FIGURES 37–42" captionStartId="4.[136,243,1632,1654]" captionTargetBox="[158,1430,190,1607]" captionTargetId="figure-26@4.[158,1430,190,1607]" captionTargetPageId="4" captionText="FIGURES 37–42. Achnanthidium lucectorii sp. nov. (SEM) from type material. 37–39. RV in external view. Striae are more densely packed toward valve apices (open arrows in 38), Figure 39 shows straight distal ends of raphe extending beyond the striation region (white arrows). 40. Internal view of RV showing small capitate termini of proximal raphe ends (white arrows) and valve apex low thickening attached to low helictoglossum (black arrow). 41, 42. External view of RV and internal view of SV. Figure 42 shows internal view of SV. Scale bars = 5 μm." figureDoi="http://doi.org/10.5281/zenodo.7835617" httpUri="https://zenodo.org/record/7835617/files/figure.png" pageId="4" pageNumber="5">Figs 37–39</figureCitation>
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). Distal fissures straight and extending over striation regions at both poles (
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<figureCitation box="[700,782,158,184]" captionStart="FIGURES 37–42" captionStartId="4.[136,243,1632,1654]" captionTargetBox="[158,1430,190,1607]" captionTargetId="figure-26@4.[158,1430,190,1607]" captionTargetPageId="4" captionText="FIGURES 37–42. Achnanthidium lucectorii sp. nov. (SEM) from type material. 37–39. RV in external view. Striae are more densely packed toward valve apices (open arrows in 38), Figure 39 shows straight distal ends of raphe extending beyond the striation region (white arrows). 40. Internal view of RV showing small capitate termini of proximal raphe ends (white arrows) and valve apex low thickening attached to low helictoglossum (black arrow). 41, 42. External view of RV and internal view of SV. Figure 42 shows internal view of SV. Scale bars = 5 μm." figureDoi="http://doi.org/10.5281/zenodo.7835617" httpUri="https://zenodo.org/record/7835617/files/figure.png" pageId="5" pageNumber="6">Fig. 39</figureCitation>
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, white arrows). Internally, proximal raphe ends with a small capitate terminus (
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<figureCitation box="[342,425,194,220]" captionStart="FIGURES 37–42" captionStartId="4.[136,243,1632,1654]" captionTargetBox="[158,1430,190,1607]" captionTargetId="figure-26@4.[158,1430,190,1607]" captionTargetPageId="4" captionText="FIGURES 37–42. Achnanthidium lucectorii sp. nov. (SEM) from type material. 37–39. RV in external view. Striae are more densely packed toward valve apices (open arrows in 38), Figure 39 shows straight distal ends of raphe extending beyond the striation region (white arrows). 40. Internal view of RV showing small capitate termini of proximal raphe ends (white arrows) and valve apex low thickening attached to low helictoglossum (black arrow). 41, 42. External view of RV and internal view of SV. Figure 42 shows internal view of SV. Scale bars = 5 μm." figureDoi="http://doi.org/10.5281/zenodo.7835617" httpUri="https://zenodo.org/record/7835617/files/figure.png" pageId="5" pageNumber="6">Fig. 40</figureCitation>
|
||
, white arrows) and distal ends terminating in low helictoglossae fused with a low thickening of valve apex (
|
||
<figureCitation box="[305,389,230,256]" captionStart="FIGURES 37–42" captionStartId="4.[136,243,1632,1654]" captionTargetBox="[158,1430,190,1607]" captionTargetId="figure-26@4.[158,1430,190,1607]" captionTargetPageId="4" captionText="FIGURES 37–42. Achnanthidium lucectorii sp. nov. (SEM) from type material. 37–39. RV in external view. Striae are more densely packed toward valve apices (open arrows in 38), Figure 39 shows straight distal ends of raphe extending beyond the striation region (white arrows). 40. Internal view of RV showing small capitate termini of proximal raphe ends (white arrows) and valve apex low thickening attached to low helictoglossum (black arrow). 41, 42. External view of RV and internal view of SV. Figure 42 shows internal view of SV. Scale bars = 5 μm." figureDoi="http://doi.org/10.5281/zenodo.7835617" httpUri="https://zenodo.org/record/7835617/files/figure.png" pageId="5" pageNumber="6">Fig. 40</figureCitation>
|
||
, black arrow). Striae varying from convex toward valve central area (striae frequently lacking or being shorter on central stauros) becoming extremely convex and noticeably denser toward apices (
|
||
<figureCitation captionStart="FIGURES 37–42" captionStartId="4.[136,243,1632,1654]" captionTargetBox="[158,1430,190,1607]" captionTargetId="figure-26@4.[158,1430,190,1607]" captionTargetPageId="4" captionText="FIGURES 37–42. Achnanthidium lucectorii sp. nov. (SEM) from type material. 37–39. RV in external view. Striae are more densely packed toward valve apices (open arrows in 38), Figure 39 shows straight distal ends of raphe extending beyond the striation region (white arrows). 40. Internal view of RV showing small capitate termini of proximal raphe ends (white arrows) and valve apex low thickening attached to low helictoglossum (black arrow). 41, 42. External view of RV and internal view of SV. Figure 42 shows internal view of SV. Scale bars = 5 μm." figureDoi="http://doi.org/10.5281/zenodo.7835617" httpUri="https://zenodo.org/record/7835617/files/figure.png" pageId="5" pageNumber="6">Figs 37–39, 41</figureCitation>
|
||
). Areolae round or elliptic toward the central sternum, becoming transapically elongated toward valve face/mantle transition, and densely packed and polygonal at valve extremes (
|
||
<figureCitation box="[859,942,338,364]" captionStart="FIGURES 37–42" captionStartId="4.[136,243,1632,1654]" captionTargetBox="[158,1430,190,1607]" captionTargetId="figure-26@4.[158,1430,190,1607]" captionTargetPageId="4" captionText="FIGURES 37–42. Achnanthidium lucectorii sp. nov. (SEM) from type material. 37–39. RV in external view. Striae are more densely packed toward valve apices (open arrows in 38), Figure 39 shows straight distal ends of raphe extending beyond the striation region (white arrows). 40. Internal view of RV showing small capitate termini of proximal raphe ends (white arrows) and valve apex low thickening attached to low helictoglossum (black arrow). 41, 42. External view of RV and internal view of SV. Figure 42 shows internal view of SV. Scale bars = 5 μm." figureDoi="http://doi.org/10.5281/zenodo.7835617" httpUri="https://zenodo.org/record/7835617/files/figure.png" pageId="5" pageNumber="6">Fig. 38</figureCitation>
|
||
, open arrows), usually with two large areolae on both sides of distal raphe end (
|
||
<figureCitation box="[509,639,374,400]" captionStart="FIGURES 37–42" captionStartId="4.[136,243,1632,1654]" captionTargetBox="[158,1430,190,1607]" captionTargetId="figure-26@4.[158,1430,190,1607]" captionTargetPageId="4" captionText="FIGURES 37–42. Achnanthidium lucectorii sp. nov. (SEM) from type material. 37–39. RV in external view. Striae are more densely packed toward valve apices (open arrows in 38), Figure 39 shows straight distal ends of raphe extending beyond the striation region (white arrows). 40. Internal view of RV showing small capitate termini of proximal raphe ends (white arrows) and valve apex low thickening attached to low helictoglossum (black arrow). 41, 42. External view of RV and internal view of SV. Figure 42 shows internal view of SV. Scale bars = 5 μm." figureDoi="http://doi.org/10.5281/zenodo.7835617" httpUri="https://zenodo.org/record/7835617/files/figure.png" pageId="5" pageNumber="6">Figs 37, 39</figureCitation>
|
||
). A single row of slit-like areolae present on valve mantle, stopping short of the very apex (unclearly seen in
|
||
<figureCitation box="[530,614,410,436]" captionStart="FIGURES 37–42" captionStartId="4.[136,243,1632,1654]" captionTargetBox="[158,1430,190,1607]" captionTargetId="figure-26@4.[158,1430,190,1607]" captionTargetPageId="4" captionText="FIGURES 37–42. Achnanthidium lucectorii sp. nov. (SEM) from type material. 37–39. RV in external view. Striae are more densely packed toward valve apices (open arrows in 38), Figure 39 shows straight distal ends of raphe extending beyond the striation region (white arrows). 40. Internal view of RV showing small capitate termini of proximal raphe ends (white arrows) and valve apex low thickening attached to low helictoglossum (black arrow). 41, 42. External view of RV and internal view of SV. Figure 42 shows internal view of SV. Scale bars = 5 μm." figureDoi="http://doi.org/10.5281/zenodo.7835617" httpUri="https://zenodo.org/record/7835617/files/figure.png" pageId="5" pageNumber="6">Fig. 40</figureCitation>
|
||
). A clear area runs around edge of the face/mantle junction (
|
||
<figureCitation box="[1288,1419,410,436]" captionStart="FIGURES 37–42" captionStartId="4.[136,243,1632,1654]" captionTargetBox="[158,1430,190,1607]" captionTargetId="figure-26@4.[158,1430,190,1607]" captionTargetPageId="4" captionText="FIGURES 37–42. Achnanthidium lucectorii sp. nov. (SEM) from type material. 37–39. RV in external view. Striae are more densely packed toward valve apices (open arrows in 38), Figure 39 shows straight distal ends of raphe extending beyond the striation region (white arrows). 40. Internal view of RV showing small capitate termini of proximal raphe ends (white arrows) and valve apex low thickening attached to low helictoglossum (black arrow). 41, 42. External view of RV and internal view of SV. Figure 42 shows internal view of SV. Scale bars = 5 μm." figureDoi="http://doi.org/10.5281/zenodo.7835617" httpUri="https://zenodo.org/record/7835617/files/figure.png" pageId="5" pageNumber="6">Figs 37–39</figureCitation>
|
||
).
|
||
</paragraph>
|
||
<paragraph blockId="5.[136,1452,158,905]" pageId="5" pageNumber="6">
|
||
SV (
|
||
<figureCitation box="[242,375,446,472]" captionStart="FIGURES 37–42" captionStartId="4.[136,243,1632,1654]" captionTargetBox="[158,1430,190,1607]" captionTargetId="figure-26@4.[158,1430,190,1607]" captionTargetPageId="4" captionText="FIGURES 37–42. Achnanthidium lucectorii sp. nov. (SEM) from type material. 37–39. RV in external view. Striae are more densely packed toward valve apices (open arrows in 38), Figure 39 shows straight distal ends of raphe extending beyond the striation region (white arrows). 40. Internal view of RV showing small capitate termini of proximal raphe ends (white arrows) and valve apex low thickening attached to low helictoglossum (black arrow). 41, 42. External view of RV and internal view of SV. Figure 42 shows internal view of SV. Scale bars = 5 μm." figureDoi="http://doi.org/10.5281/zenodo.7835617" httpUri="https://zenodo.org/record/7835617/files/figure.png" pageId="5" pageNumber="6">Figs 41, 42</figureCitation>
|
||
) with wider, flat (only observed in internal view) lanceolate axial area, more or less broad at valve ends. Central nodule is only slightly raised internally. Virgae of same characteristics as in RV, but at same level as striae and axial area (only internal views available). Striae of same general characteristics as those of RV, except they are evenly spaced (some are short) at valve central area, they become less convex toward the valve apices, and single row of elongated striae on the valve mantle are continuous around valve apex. The clear area around edge of the face/mantle junction is less noticeable.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="5" pageNumber="6" type="materials_examined">
|
||
<paragraph blockId="5.[136,1452,158,905]" pageId="5" pageNumber="6">
|
||
<emphasis bold="true" box="[189,286,662,688]" pageId="5" pageNumber="6">Type:—</emphasis>
|
||
<materialsCitation collectingDate="1996-08-07" collectionCode="NAWQA, ANSP" country="United States of America" county="Uvalde County" latitude="29.491" location="Sabinal River" longLatPrecision="73" longitude="-99.493" pageId="5" pageNumber="6" specimenCode="GC 102382" specimenCount="1" stateProvince="Texas" typeStatus="holotype">
|
||
<collectingCountry box="[285,362,662,688]" name="United States of America" pageId="5" pageNumber="6">U.S.A.</collectingCountry>
|
||
<collectingRegion box="[370,438,663,689]" country="United States of America" name="Texas" pageId="5" pageNumber="6">Texas</collectingRegion>
|
||
,
|
||
<collectingCounty box="[449,622,662,688]" pageId="5" pageNumber="6">Uvalde County</collectingCounty>
|
||
,
|
||
<location LSID="urn:lsid:plazi:treatment:9A0E87F0FF91FFC7FF2CD6CCFBBCFC3F:1778603DFF96FFC7FDDDD3EAFCE9FD06" box="[633,789,662,688]" country="United States of America" county="Uvalde County" latitude="29.491" longLatPrecision="73" longitude="-99.493" name="Sabinal River" pageId="5" pageNumber="6" stateProvince="Texas">Sabinal River</location>
|
||
,
|
||
<geoCoordinate box="[801,909,662,689]" degrees="29.491" direction="north" orientation="latitude" pageId="5" pageNumber="6" precision="55" value="29.491">29.491 N</geoCoordinate>
|
||
,
|
||
<geoCoordinate box="[921,1032,662,689]" degrees="99.493" direction="west" orientation="longitude" pageId="5" pageNumber="6" precision="55" value="-99.493">99.493 W</geoCoordinate>
|
||
,
|
||
<emphasis box="[1044,1336,662,689]" italics="true" pageId="5" pageNumber="6">
|
||
<collectionCode box="[1044,1142,663,689]" pageId="5" pageNumber="6">NAWQA</collectionCode>
|
||
,
|
||
<date box="[1153,1253,663,689]" pageId="5" pageNumber="6" value="1996-08-07">
|
||
<collectingDate box="[1153,1253,663,689]" pageId="5" pageNumber="6" value="1996-08-07">August 7</collectingDate>
|
||
</date>
|
||
<superScript attach="none" box="[1253,1266,662,676]" fontSize="6" pageId="5" pageNumber="6">th</superScript>
|
||
, 1996
|
||
</emphasis>
|
||
(
|
||
<typeStatus box="[1352,1452,662,688]" pageId="5" pageNumber="6">holotype</typeStatus>
|
||
slide
|
||
<collectionCode box="[194,265,698,724]" country="USA" httpUri="http://biocol.org/urn:lsid:biocol.org:col:34784" lsid="urn:lsid:biocol.org:col:34784" name="Academy of Natural Sciences of Philadelphia" pageId="5" pageNumber="6">ANSP</collectionCode>
|
||
<specimenCode box="[272,402,698,724]" collectionCode="GC" country="0" name="Goucher College" pageId="5" pageNumber="6">GC 102382</specimenCode>
|
||
a =
|
||
<figureCitation box="[444,524,698,724]" captionStart="FIGURES 1–36" captionStartId="3.[136,243,1946,1968]" captionTargetBox="[155,1431,317,1915]" captionTargetId="figure-68@3.[151,1436,317,1921]" captionTargetPageId="3" captionText="FIGURES 1–36. Achnanthidium lucectorii sp. nov. (LM) from type material. 1–21. RV views arranged by size. Notice bow-tie fascia and stauros in central area, Fig. 10 corresponds to the holotype. 22, 23. Girdle views of two complete frustules. 24–36. SV arranged in size diminution series. Notice lanceolate axial area and clearly seen striae. Scale bar = 10 μm." figureDoi="http://doi.org/10.5281/zenodo.7835615" httpUri="https://zenodo.org/record/7835615/files/figure.png" pageId="5" pageNumber="6">Fig. 10</figureCitation>
|
||
)
|
||
</materialsCitation>
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="5" pageNumber="6" type="etymology">
|
||
<paragraph blockId="5.[136,1452,158,905]" pageId="5" pageNumber="6">
|
||
<emphasis bold="true" box="[189,356,734,760]" pageId="5" pageNumber="6">Etymology:—</emphasis>
|
||
The species epithet honors our late colleague Luc Ector. Luc promoted a major advancement in the taxonomy of the genus
|
||
<taxonomicName authorityName="Kutzing" authorityYear="1844" box="[442,613,770,796]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="5" pageNumber="6" phylum="Bacillariophyta" rank="genus">
|
||
<emphasis box="[442,613,770,796]" italics="true" pageId="5" pageNumber="6">Achnanthidium</emphasis>
|
||
</taxonomicName>
|
||
through a series of courses and workshops that were the foundation of the taxonomy used in the European Water Framework Directive. The special issue in Algological Studies (2011: 136/137), edited by Luc and the result of one of those workshops, presented critical analyses of
|
||
<typeStatus box="[1089,1137,843,869]" pageId="5" pageNumber="6">type</typeStatus>
|
||
material and new species in
|
||
<taxonomicName authorityName="Kutzing" authorityYear="1844" box="[136,307,878,904]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="5" pageNumber="6" phylum="Bacillariophyta" rank="genus">
|
||
<emphasis box="[136,307,878,904]" italics="true" pageId="5" pageNumber="6">Achnanthidium</emphasis>
|
||
</taxonomicName>
|
||
from around the world, a foundation for current studies in this genus.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |