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<document id="2404DBC391CB45416EF073A6EED013AC" ID-DOI="10.11646/phytotaxa.419.1.3" ID-ISSN="1179-3163" ID-Zenodo-Dep="13715202" IM.bibliography_approvedBy="felipe" IM.illustrations_approvedBy="felipe" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="GgImagineBatch" IM.taxonomicNames_approvedBy="felipe" IM.treatmentCitations_approvedBy="felipe" IM.treatments_approvedBy="felipe" checkinTime="1725647249406" checkinUser="felipe" docAuthor="Hamilton, Paul B., Savoie, Amanda M., Sayre, Cynthia M., Skibbe, Oliver, Zimmermann, Jonas &amp; Bull, Roger D." docDate="2019" docId="03C287B70531F110FF7AF8DFAB6EB435" docLanguage="en" docName="phytotaxa.419.1.3.pdf" docOrigin="Phytotaxa 419 (1)" docSource="http://dx.doi.org/10.11646/phytotaxa.419.1.3" docStyle="DocumentStyle:96748F8F1B6C902996E134952A3A36B9.13:Phytotaxa.2014-.journal_article" docStyleId="96748F8F1B6C902996E134952A3A36B9" docStyleName="Phytotaxa.2014-.journal_article" docStyleVersion="13" docTitle="Neidium vandusenense Hamilton, Savoie, Sayre, Skibbe, Zimmermann &amp; Bull, 2019, sp. nov." docType="treatment" docVersion="2" lastPageNumber="52" masterDocId="FFFBFFCF0538F11DFFF2FF86A97CB069" masterDocTitle="Novel Neidium Pfitzer species from western Canada based upon morphology and plastid DNA sequences" masterLastPageNumber="62" masterPageNumber="39" pageNumber="48" updateTime="1725649068736" updateUser="ExternalLinkService" zenodo-license-figures="UNSPECIFIED" zenodo-license-treatments="UNSPECIFIED">
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<mods:title id="8BE86522B14A46F1DD1036E7E898DC37">Novel Neidium Pfitzer species from western Canada based upon morphology and plastid DNA sequences</mods:title>
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<mods:namePart id="B33B824285532C624354F4A57FC353B6">Savoie, Amanda M.</mods:namePart>
<mods:affiliation id="88E7973D698F2FAB88F7E9950DF831A1">Canadian Museum of Nature, Station D, P. O. Box 3443, Ottawa Canada, K 1 P 6 P 4</mods:affiliation>
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<mods:namePart id="BAF586FA12C19AFD76C75F8C84764D2A">Sayre, Cynthia M.</mods:namePart>
<mods:affiliation id="A6EAFD56A2558F10B57F5553F8EC3585">VanDusen Botanical Garden, 5251 Oak Street, Vancouver, British Columbia, Canada, V 6 M 4 H 1</mods:affiliation>
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<mods:namePart id="1DC60F187CA408FBCF46B2897EB1365F">Skibbe, Oliver</mods:namePart>
<mods:affiliation id="41FF280C5E7EB9E41B7AE3B5686279DF">Botanischer Garten und Botanisches Museum Berlin, Freie Universität Berlin, Königin-Luise-Str. 6 - 8, 14195 Berlin, Germany</mods:affiliation>
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<mods:namePart id="8860AD751A87BDDA18D53473C92E6034">Zimmermann, Jonas</mods:namePart>
<mods:affiliation id="82CE3FBCC6B926750835C1F56F9C768A">Botanischer Garten und Botanisches Museum Berlin, Freie Universität Berlin, Königin-Luise-Str. 6 - 8, 14195 Berlin, Germany</mods:affiliation>
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<mods:namePart id="64352D3755525BBE156277385F57890B">Bull, Roger D.</mods:namePart>
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<mods:date id="D383CC461D2F7E98CACB78371134CCB8">2019</mods:date>
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<paragraph id="8BD436A10531F114FF7AF8DFAB09B71D" blockId="9.[136,629,1881,1908]" box="[136,629,1881,1908]" pageId="9" pageNumber="48">
<heading id="D09C81CD0531F114FF7AF8DFAB09B71D" box="[136,629,1881,1908]" fontSize="11" level="2" pageId="9" pageNumber="48" reason="3">
<emphasis id="B91FEAB30531F114FF7AF8DFA88CB71D" box="[136,496,1881,1908]" italics="true" pageId="9" pageNumber="48">
<taxonomicName id="4C6B4D220531F114FF7AF8DFA8E9B71D" authorityName="Hamilton &amp; Savoie &amp; Sayre &amp; Skibbe &amp; Zimmermann &amp; Bull" authorityYear="2019" box="[136,405,1881,1908]" class="Bacillariophyceae" family="Neidiaceae" genus="Neidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="9" pageNumber="48" phylum="Ochrophyta" rank="species" species="vandusenense" status="sp. nov.">
<emphasis id="B91FEAB30531F114FF7AF8DFA8E9B71D" bold="true" box="[136,405,1881,1908]" italics="true" pageId="9" pageNumber="48">Neidium vandusenense</emphasis>
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<taxonomicNameLabel id="A22C57C80531F114FE69F8DDA88CB71D" box="[411,496,1883,1908]" pageId="9" pageNumber="48" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
<figureCitation id="13502A240531F114FE05F8DDAB09B71D" box="[503,629,1883,1908]" captionStart-0="FIGURES 1930" captionStart-1="FIGURES 3136" captionStart-2="FIGURES3744" captionStartId-0="10.[136,243,2056,2077]" captionStartId-1="11.[136,243,1726,1747]" captionStartId-2="12.[136,243,1586,1607]" captionTargetBox-0="[188,1398,317,2026]" captionTargetBox-1="[151,1433,261,1702]" captionTargetBox-2="[152,1436,282,1562]" captionTargetId-0="figure-71@10.[183,1405,314,2031]" captionTargetId-1="figure-14@11.[151,1436,259,1702]" captionTargetId-2="figure-15@12.[151,1436,282,1562]" captionTargetPageId-0="10" captionTargetPageId-1="11" captionTargetPageId-2="12" captionText-0="FIGURES 1930. Neidium vandusenense sp. nov. LM. Fig. 21, holotype. Scale bar = 20 μm." captionText-1="FIGURES 3136. Neidium vandusenense sp. nov. SEM, external view. Fig. 31. Whole valve. Fig. 32. Central valve with multiple longitudinal canals and transapical central area. Proximal raphe branches evenly hooked. Fig. 33. Apex valve face and mantle showing concave mantle wall, longitudinal canals reducing to one at the apex. Fig. 34. Valve face showing developed ridge along one side of the raphe (arrow) and scattered surface depressions along the axial area. Areolae recessed with a finger-like cribra. Fig. 35. Apex with 3 evident copulae. Copulae open bands with 2 rows of pores. Lacina extends to band base (arrow). Fig. 36. Central region showing a weak elevation of the longitudinal canal. Scale bars = 20 μm: Fig. 31; 10 μm: Figs 32, 33; 2 μm: Figs 3436." captionText-2="FIGURES3744.Neidiumvandusenensesp.nov.SEM,internalview.Fig.37.Centralareawithoffsetforminginterconnectedhelictoglossae. Surface depressions (ghost striae) present in the central area. Figs 38, 39. Apex showing upright formation of the helictoglossae at the edge of the terminal nodule. Longitudinal canals blend in with areolae. Figs 40, 41. Margin of the valve showing multiple longitudinal canals. Open chambered formation (Fig. 41 (arrow), apical and transapical). Fig. 42. Renilimbia surround hymenae covered areolae (arrow). Figs 43, 44. Open copula band with 2 rows of poroids. Scale bars = 5 μm: Figs. 37, 38, 43; 2 μm: Figs 40, 41; 1 μm: Figs 42, 44." figureDoi-0="http://doi.org/10.5281/zenodo.13715214" figureDoi-1="http://doi.org/10.5281/zenodo.13715216" figureDoi-2="http://doi.org/10.5281/zenodo.13715220" httpUri-0="https://zenodo.org/record/13715214/files/figure.png" httpUri-1="https://zenodo.org/record/13715216/files/figure.png" httpUri-2="https://zenodo.org/record/13715220/files/figure.png" pageId="9" pageNumber="48">
<emphasis id="B91FEAB30531F114FE05F8DDAB09B71D" bold="true" box="[503,629,1883,1908]" pageId="9" pageNumber="48">Figs 1944</emphasis>
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</paragraph>
<paragraph id="8BD436A10531F114FF7AF825ADAFB7D5" blockId="9.[136,1452,1955,2088]" box="[136,1235,1955,1980]" pageId="9" pageNumber="48">Individuals examined for morphological analyses: n = 61, examined for molecular analysis: n = 7.</paragraph>
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<paragraph id="8BD436A10531F117FF4FF841A88CB14C" blockId="9.[136,1452,1955,2088]" lastBlockId="10.[136,1452,160,293]" lastPageId="10" lastPageNumber="49" pageId="9" pageNumber="48">
Valves linear to linear elliptic with apiculate extended apices (
<figureCitation id="13502A240531F114FC83F841AA8FB789" box="[881,1011,1991,2016]" captionStart="FIGURES 1930" captionStartId="10.[136,243,2056,2077]" captionTargetBox="[188,1398,317,2026]" captionTargetId="figure-71@10.[183,1405,314,2031]" captionTargetPageId="10" captionText="FIGURES 1930. Neidium vandusenense sp. nov. LM. Fig. 21, holotype. Scale bar = 20 μm." figureDoi="http://doi.org/10.5281/zenodo.13715214" httpUri="https://zenodo.org/record/13715214/files/figure.png" pageId="9" pageNumber="48">Figs 1930</figureCitation>
). Valve length 96116 μm, width 20.0 23.0 μm. Striae oblique to mildly convergent at apices,
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10 μm. Areolae round to elliptical,
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10 μm. Voigt faults on secondary side of valve. Central area transapically expanded, covering 1/3 to 1/2 the valve width. Linear ghost striation markings present along edge of central area (
<figureCitation id="13502A240532F117FC86FF26AD09B0D0" box="[884,1141,160,185]" captionStart="FIGURES 1930" captionStartId="10.[136,243,2056,2077]" captionTargetBox="[188,1398,317,2026]" captionTargetId="figure-71@10.[183,1405,314,2031]" captionTargetPageId="10" captionText="FIGURES 1930. Neidium vandusenense sp. nov. LM. Fig. 21, holotype. Scale bar = 20 μm." figureDoi="http://doi.org/10.5281/zenodo.13715214" httpUri="https://zenodo.org/record/13715214/files/figure.png" pageId="10" pageNumber="49">Figs 2122, 25, 2728</figureCitation>
). Axial area linear-elliptical from mid-valve to apex. In LM, raphe filiform and linear-elliptical. Three or more longitudinal canals present along each margin. Central raphe ends deflected hooks, terminal ends forming bifurcate lacinia. Small terminal hyaline area present at apex (
<figureCitation id="13502A240532F117FECDFE8AA8EFB14C" box="[319,403,268,293]" captionStart="FIGURES 1930" captionStartId="10.[136,243,2056,2077]" captionTargetBox="[188,1398,317,2026]" captionTargetId="figure-71@10.[183,1405,314,2031]" captionTargetPageId="10" captionText="FIGURES 1930. Neidium vandusenense sp. nov. LM. Fig. 21, holotype. Scale bar = 20 μm." figureDoi="http://doi.org/10.5281/zenodo.13715214" httpUri="https://zenodo.org/record/13715214/files/figure.png" pageId="10" pageNumber="49">Fig. 20</figureCitation>
, arrow).
</paragraph>
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<paragraph id="8BD436A10532F117FF7AF78EAD75B874" blockId="10.[136,1033,2056,2077]" box="[136,1033,2056,2077]" pageId="10" pageNumber="49">
<emphasis id="B91FEAB30532F117FF7AF78EA846B874" bold="true" box="[136,314,2056,2077]" pageId="10" pageNumber="49">FIGURES 1930.</emphasis>
<emphasis id="B91FEAB30532F117FEB3F78EAB11B874" box="[321,621,2056,2077]" italics="true" pageId="10" pageNumber="49">
<taxonomicName id="4C6B4D220532F117FEB3F78EAB61B874" authorityName="Hamilton &amp; Savoie &amp; Sayre &amp; Skibbe &amp; Zimmermann &amp; Bull" authorityYear="2019" box="[321,541,2056,2077]" class="Bacillariophyceae" family="Neidiaceae" genus="Neidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="10" pageNumber="49" phylum="Ochrophyta" rank="species" species="vandusenense" status="sp. nov.">Neidium vandusenense</taxonomicName>
<taxonomicNameLabel id="A22C57C80532F117FDD1F78EAB11B874" box="[547,621,2056,2077]" pageId="10" pageNumber="49" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
LM. Fig. 21, holotype. Scale bar = 20 μm.
</paragraph>
</caption>
<caption id="DF1466290533F116FF7AF938AD14B7EE" ID-DOI="http://doi.org/10.5281/zenodo.13715216" ID-Zenodo-Dep="13715216" httpUri="https://zenodo.org/record/13715216/files/figure.png" pageId="11" pageNumber="50" startId="11.[136,243,1726,1747]" targetBox="[151,1433,261,1702]" targetPageId="11" targetType="figure">
<paragraph id="8BD436A10533F116FF7AF938AD14B7EE" blockId="11.[136,1452,1726,1927]" pageId="11" pageNumber="50">
<emphasis id="B91FEAB30533F116FF7AF938A842B6BA" bold="true" box="[136,318,1726,1747]" pageId="11" pageNumber="50">FIGURES 3136.</emphasis>
<emphasis id="B91FEAB30533F116FEBAF938AB03B6BA" box="[328,639,1726,1747]" italics="true" pageId="11" pageNumber="50">
<taxonomicName id="4C6B4D220533F116FEBAF938AB54B6BA" authorityName="Hamilton &amp; Savoie &amp; Sayre &amp; Skibbe &amp; Zimmermann &amp; Bull" authorityYear="2019" box="[328,552,1726,1747]" class="Bacillariophyceae" family="Neidiaceae" genus="Neidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="11" pageNumber="50" phylum="Ochrophyta" rank="species" species="vandusenense" status="sp. nov.">Neidium vandusenense</taxonomicName>
<taxonomicNameLabel id="A22C57C80533F116FDC0F938AB03B6BA" box="[562,639,1726,1747]" pageId="11" pageNumber="50" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
SEM, external view.
<emphasis id="B91FEAB30533F116FCAEF938AAD9B6BA" bold="true" box="[860,933,1726,1747]" pageId="11" pageNumber="50">Fig. 31</emphasis>
. Whole valve.
<emphasis id="B91FEAB30533F116FBB3F938ADF3B6BA" bold="true" box="[1089,1167,1726,1747]" pageId="11" pageNumber="50">Fig. 32.</emphasis>
Central valve with multiple longitudinal canals and transapical central area. Proximal raphe branches evenly hooked.
<emphasis id="B91FEAB30533F116FC02F964AD41B69E" bold="true" box="[1008,1085,1762,1783]" pageId="11" pageNumber="50">Fig. 33.</emphasis>
Apex valve face and mantle showing concave mantle wall, longitudinal canals reducing to one at the apex.
<emphasis id="B91FEAB30533F116FCD9F880AA0AB772" bold="true" box="[811,886,1798,1819]" pageId="11" pageNumber="50">Fig. 34.</emphasis>
Valve face showing developed ridge along one side of the raphe (arrow) and scattered surface depressions along the axial area. Areolae recessed with a finger-like cribra.
<emphasis id="B91FEAB30533F116FB29F8ACAC5FB756" bold="true" box="[1243,1315,1834,1855]" pageId="11" pageNumber="50">Fig. 35</emphasis>
. Apex with 3 evident copulae. Copulae open bands with 2 rows of pores. Lacina extends to band base (arrow).
<emphasis id="B91FEAB30533F116FBDDF8C8AD06B70A" bold="true" box="[1071,1146,1870,1891]" pageId="11" pageNumber="50">Fig. 36.</emphasis>
Central region showing a weak elevation of the longitudinal canal. Scale bars = 20 μm: Fig. 31; 10 μm: Figs 32, 33; 2 μm: Figs 3436.
</paragraph>
</caption>
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<paragraph id="8BD436A10534F111FF7AF9B4AC53B6BE" blockId="12.[136,1453,1586,1751]" pageId="12" pageNumber="51">
<emphasis id="B91FEAB30534F111FF7AF9B4A84BB62E" bold="true" box="[136,311,1586,1607]" pageId="12" pageNumber="51">FIGURES3744.</emphasis>
<emphasis id="B91FEAB30534F111FEC8F9B4AB20B62E" box="[314,604,1586,1607]" italics="true" pageId="12" pageNumber="51">
<taxonomicName id="4C6B4D220534F111FEC8F9B4AB6FB62E" authorityName="Hamilton &amp; Savoie &amp; Sayre &amp; Skibbe &amp; Zimmermann &amp; Bull" authorityYear="2019" box="[314,531,1586,1607]" class="Bacillariophyceae" family="Neidiaceae" genus="Neidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="12" pageNumber="51" phylum="Ochrophyta" rank="species" species="vandusenense" status="sp. nov.">Neidium vandusenense</taxonomicName>
<taxonomicNameLabel id="A22C57C80534F111FDE4F9B4AB20B62E" box="[534,604,1586,1607]" pageId="12" pageNumber="51" rank="species">sp.nov.</taxonomicNameLabel>
</emphasis>
SEM,internal view.
<emphasis id="B91FEAB30534F111FCEBF9B4AA27B62E" bold="true" box="[793,859,1586,1607]" pageId="12" pageNumber="51">Fig. 37</emphasis>
. Central area with offset forming interconnected helictoglossae. Surface depressions (ghost striae) present in the central area.
<emphasis id="B91FEAB30534F111FD39F9D0AA47B602" bold="true" box="[715,827,1622,1643]" pageId="12" pageNumber="51">Figs 38, 39.</emphasis>
Apex showing upright formation of the helictoglossae at the edge of the terminal nodule. Longitudinal canals blend in with areolae.
<emphasis id="B91FEAB30534F111FCF6F9FCAA04B6E6" bold="true" box="[772,888,1658,1679]" pageId="12" pageNumber="51">Figs 40, 41.</emphasis>
Margin of the valve showing multiple longitudinal canals. Open chambered formation (Fig. 41 (arrow), apical and transapical).
<emphasis id="B91FEAB30534F111FCE8F918AA19B6DA" bold="true" box="[794,869,1694,1715]" pageId="12" pageNumber="51">Fig. 42.</emphasis>
Renilimbia surround hymenae covered areolae (arrow).
<emphasis id="B91FEAB30534F111FA73F918A9B6B6BE" bold="true" pageId="12" pageNumber="51">Figs 43, 44.</emphasis>
Open copula band with 2 rows of poroids. Scale bars = 5 μm: Figs. 37, 38, 43; 2 μm: Figs 40, 41; 1 μm: Figs 42, 44.
</paragraph>
</caption>
<paragraph id="8BD436A10534F110FF4FF88EA8C3B12D" blockId="12.[136,1452,1800,2077]" lastBlockId="13.[136,1452,155,1116]" lastPageId="13" lastPageNumber="52" pageId="12" pageNumber="51">
In SEM external view, valves more or less linear with rounded margins (
<figureCitation id="13502A240534F111FC03F88EAD08B748" box="[1009,1140,1800,1825]" captionStart="FIGURES 3136" captionStartId="11.[136,243,1726,1747]" captionTargetBox="[151,1433,261,1702]" captionTargetId="figure-14@11.[151,1436,259,1702]" captionTargetPageId="11" captionText="FIGURES 3136. Neidium vandusenense sp. nov. SEM, external view. Fig. 31. Whole valve. Fig. 32. Central valve with multiple longitudinal canals and transapical central area. Proximal raphe branches evenly hooked. Fig. 33. Apex valve face and mantle showing concave mantle wall, longitudinal canals reducing to one at the apex. Fig. 34. Valve face showing developed ridge along one side of the raphe (arrow) and scattered surface depressions along the axial area. Areolae recessed with a finger-like cribra. Fig. 35. Apex with 3 evident copulae. Copulae open bands with 2 rows of pores. Lacina extends to band base (arrow). Fig. 36. Central region showing a weak elevation of the longitudinal canal. Scale bars = 20 μm: Fig. 31; 10 μm: Figs 32, 33; 2 μm: Figs 3436." figureDoi="http://doi.org/10.5281/zenodo.13715216" httpUri="https://zenodo.org/record/13715216/files/figure.png" pageId="12" pageNumber="51">Figs 31, 33</figureCitation>
). Apices broadly protracted and mantle at apex recessed not forming linear sides (
<figureCitation id="13502A240534F111FD15F8AAAA16B72C" box="[743,874,1836,1861]" captionStart="FIGURES 3136" captionStartId="11.[136,243,1726,1747]" captionTargetBox="[151,1433,261,1702]" captionTargetId="figure-14@11.[151,1436,259,1702]" captionTargetPageId="11" captionText="FIGURES 3136. Neidium vandusenense sp. nov. SEM, external view. Fig. 31. Whole valve. Fig. 32. Central valve with multiple longitudinal canals and transapical central area. Proximal raphe branches evenly hooked. Fig. 33. Apex valve face and mantle showing concave mantle wall, longitudinal canals reducing to one at the apex. Fig. 34. Valve face showing developed ridge along one side of the raphe (arrow) and scattered surface depressions along the axial area. Areolae recessed with a finger-like cribra. Fig. 35. Apex with 3 evident copulae. Copulae open bands with 2 rows of pores. Lacina extends to band base (arrow). Fig. 36. Central region showing a weak elevation of the longitudinal canal. Scale bars = 20 μm: Fig. 31; 10 μm: Figs 32, 33; 2 μm: Figs 3436." figureDoi="http://doi.org/10.5281/zenodo.13715216" httpUri="https://zenodo.org/record/13715216/files/figure.png" pageId="12" pageNumber="51">Figs 31, 33</figureCitation>
). Raphe linear with a broken thickened ridge along primary side and weak to no ridge along secondary side (
<figureCitation id="13502A240534F111FCFBF8D6AAF0B700" box="[777,908,1872,1897]" captionStart="FIGURES 3136" captionStartId="11.[136,243,1726,1747]" captionTargetBox="[151,1433,261,1702]" captionTargetId="figure-14@11.[151,1436,259,1702]" captionTargetPageId="11" captionText="FIGURES 3136. Neidium vandusenense sp. nov. SEM, external view. Fig. 31. Whole valve. Fig. 32. Central valve with multiple longitudinal canals and transapical central area. Proximal raphe branches evenly hooked. Fig. 33. Apex valve face and mantle showing concave mantle wall, longitudinal canals reducing to one at the apex. Fig. 34. Valve face showing developed ridge along one side of the raphe (arrow) and scattered surface depressions along the axial area. Areolae recessed with a finger-like cribra. Fig. 35. Apex with 3 evident copulae. Copulae open bands with 2 rows of pores. Lacina extends to band base (arrow). Fig. 36. Central region showing a weak elevation of the longitudinal canal. Scale bars = 20 μm: Fig. 31; 10 μm: Figs 32, 33; 2 μm: Figs 3436." figureDoi="http://doi.org/10.5281/zenodo.13715216" httpUri="https://zenodo.org/record/13715216/files/figure.png" pageId="12" pageNumber="51">Figs 32, 34</figureCitation>
). Proximal raphe ends
<taxonomicName id="4C6B4D220534F111FB7FF8D6AC61B700" box="[1165,1309,1872,1897]" form="distinct" pageId="12" pageNumber="51" rank="form">form distinct</taxonomicName>
small hooks in opposite directions on small central mound (
<figureCitation id="13502A240534F111FD52F8F2AB89B7E4" box="[672,757,1908,1933]" captionStart="FIGURES 3136" captionStartId="11.[136,243,1726,1747]" captionTargetBox="[151,1433,261,1702]" captionTargetId="figure-14@11.[151,1436,259,1702]" captionTargetPageId="11" captionText="FIGURES 3136. Neidium vandusenense sp. nov. SEM, external view. Fig. 31. Whole valve. Fig. 32. Central valve with multiple longitudinal canals and transapical central area. Proximal raphe branches evenly hooked. Fig. 33. Apex valve face and mantle showing concave mantle wall, longitudinal canals reducing to one at the apex. Fig. 34. Valve face showing developed ridge along one side of the raphe (arrow) and scattered surface depressions along the axial area. Areolae recessed with a finger-like cribra. Fig. 35. Apex with 3 evident copulae. Copulae open bands with 2 rows of pores. Lacina extends to band base (arrow). Fig. 36. Central region showing a weak elevation of the longitudinal canal. Scale bars = 20 μm: Fig. 31; 10 μm: Figs 32, 33; 2 μm: Figs 3436." figureDoi="http://doi.org/10.5281/zenodo.13715216" httpUri="https://zenodo.org/record/13715216/files/figure.png" pageId="12" pageNumber="51">Fig. 32</figureCitation>
). Distal raphe ends
<taxonomicName id="4C6B4D220534F111FC25F8F2AD29B7E4" box="[983,1109,1908,1933]" form="broad" pageId="12" pageNumber="51" rank="form">form broad</taxonomicName>
triangular lacinia with curved expansion at mantle base (
<figureCitation id="13502A240534F111FE5EF81EAB57B7D8" box="[428,555,1944,1969]" captionStart="FIGURES 3136" captionStartId="11.[136,243,1726,1747]" captionTargetBox="[151,1433,261,1702]" captionTargetId="figure-14@11.[151,1436,259,1702]" captionTargetPageId="11" captionText="FIGURES 3136. Neidium vandusenense sp. nov. SEM, external view. Fig. 31. Whole valve. Fig. 32. Central valve with multiple longitudinal canals and transapical central area. Proximal raphe branches evenly hooked. Fig. 33. Apex valve face and mantle showing concave mantle wall, longitudinal canals reducing to one at the apex. Fig. 34. Valve face showing developed ridge along one side of the raphe (arrow) and scattered surface depressions along the axial area. Areolae recessed with a finger-like cribra. Fig. 35. Apex with 3 evident copulae. Copulae open bands with 2 rows of pores. Lacina extends to band base (arrow). Fig. 36. Central region showing a weak elevation of the longitudinal canal. Scale bars = 20 μm: Fig. 31; 10 μm: Figs 32, 33; 2 μm: Figs 3436." figureDoi="http://doi.org/10.5281/zenodo.13715216" httpUri="https://zenodo.org/record/13715216/files/figure.png" pageId="12" pageNumber="51">Figs 33, 35</figureCitation>
). Axial area with randomly positioned surface depressions (
<figureCitation id="13502A240534F111FB33F81EAC3EB7D8" box="[1217,1346,1944,1969]" captionStart="FIGURES 3136" captionStartId="11.[136,243,1726,1747]" captionTargetBox="[151,1433,261,1702]" captionTargetId="figure-14@11.[151,1436,259,1702]" captionTargetPageId="11" captionText="FIGURES 3136. Neidium vandusenense sp. nov. SEM, external view. Fig. 31. Whole valve. Fig. 32. Central valve with multiple longitudinal canals and transapical central area. Proximal raphe branches evenly hooked. Fig. 33. Apex valve face and mantle showing concave mantle wall, longitudinal canals reducing to one at the apex. Fig. 34. Valve face showing developed ridge along one side of the raphe (arrow) and scattered surface depressions along the axial area. Areolae recessed with a finger-like cribra. Fig. 35. Apex with 3 evident copulae. Copulae open bands with 2 rows of pores. Lacina extends to band base (arrow). Fig. 36. Central region showing a weak elevation of the longitudinal canal. Scale bars = 20 μm: Fig. 31; 10 μm: Figs 32, 33; 2 μm: Figs 3436." figureDoi="http://doi.org/10.5281/zenodo.13715216" httpUri="https://zenodo.org/record/13715216/files/figure.png" pageId="12" pageNumber="51">Figs 32, 34</figureCitation>
). Areolae depressions on external valve face with recessed finger-forming silicate cribra (
<figureCitation id="13502A240534F111FBC0F83AADC2B7BC" box="[1074,1214,1980,2005]" captionStart="FIGURES 3136" captionStartId="11.[136,243,1726,1747]" captionTargetBox="[151,1433,261,1702]" captionTargetId="figure-14@11.[151,1436,259,1702]" captionTargetPageId="11" captionText="FIGURES 3136. Neidium vandusenense sp. nov. SEM, external view. Fig. 31. Whole valve. Fig. 32. Central valve with multiple longitudinal canals and transapical central area. Proximal raphe branches evenly hooked. Fig. 33. Apex valve face and mantle showing concave mantle wall, longitudinal canals reducing to one at the apex. Fig. 34. Valve face showing developed ridge along one side of the raphe (arrow) and scattered surface depressions along the axial area. Areolae recessed with a finger-like cribra. Fig. 35. Apex with 3 evident copulae. Copulae open bands with 2 rows of pores. Lacina extends to band base (arrow). Fig. 36. Central region showing a weak elevation of the longitudinal canal. Scale bars = 20 μm: Fig. 31; 10 μm: Figs 32, 33; 2 μm: Figs 3436." figureDoi="http://doi.org/10.5281/zenodo.13715216" httpUri="https://zenodo.org/record/13715216/files/figure.png" pageId="12" pageNumber="51">Figs 34, 36</figureCitation>
). Three to four flat, longitudinal canals present along each margin (
<figureCitation id="13502A240534F111FD63F866AA6DB790" box="[657,785,2016,2041]" captionStart="FIGURES 3136" captionStartId="11.[136,243,1726,1747]" captionTargetBox="[151,1433,261,1702]" captionTargetId="figure-14@11.[151,1436,259,1702]" captionTargetPageId="11" captionText="FIGURES 3136. Neidium vandusenense sp. nov. SEM, external view. Fig. 31. Whole valve. Fig. 32. Central valve with multiple longitudinal canals and transapical central area. Proximal raphe branches evenly hooked. Fig. 33. Apex valve face and mantle showing concave mantle wall, longitudinal canals reducing to one at the apex. Fig. 34. Valve face showing developed ridge along one side of the raphe (arrow) and scattered surface depressions along the axial area. Areolae recessed with a finger-like cribra. Fig. 35. Apex with 3 evident copulae. Copulae open bands with 2 rows of pores. Lacina extends to band base (arrow). Fig. 36. Central region showing a weak elevation of the longitudinal canal. Scale bars = 20 μm: Fig. 31; 10 μm: Figs 32, 33; 2 μm: Figs 3436." figureDoi="http://doi.org/10.5281/zenodo.13715216" httpUri="https://zenodo.org/record/13715216/files/figure.png" pageId="12" pageNumber="51">Figs 32, 36</figureCitation>
). Internal valve: Central area elevated with ghost striae (
<figureCitation id="13502A240534F111FA8CF866A9D4B874" captionStart="FIGURES3744" captionStartId="12.[136,243,1586,1607]" captionTargetBox="[152,1436,282,1562]" captionTargetId="figure-15@12.[151,1436,282,1562]" captionTargetPageId="12" captionText="FIGURES3744.Neidiumvandusenensesp.nov.SEM,internalview.Fig.37.Centralareawithoffsetforminginterconnectedhelictoglossae. Surface depressions (ghost striae) present in the central area. Figs 38, 39. Apex showing upright formation of the helictoglossae at the edge of the terminal nodule. Longitudinal canals blend in with areolae. Figs 40, 41. Margin of the valve showing multiple longitudinal canals. Open chambered formation (Fig. 41 (arrow), apical and transapical). Fig. 42. Renilimbia surround hymenae covered areolae (arrow). Figs 43, 44. Open copula band with 2 rows of poroids. Scale bars = 5 μm: Figs. 37, 38, 43; 2 μm: Figs 40, 41; 1 μm: Figs 42, 44." figureDoi="http://doi.org/10.5281/zenodo.13715220" httpUri="https://zenodo.org/record/13715220/files/figure.png" pageId="12" pageNumber="51">Fig. 37</figureCitation>
). Central helictoglossae offset with small silica interconnection. Terminal helictoglossae
<taxonomicName id="4C6B4D220534F111FB73F782AC5BB874" box="[1153,1319,2052,2077]" form="vertically" pageId="12" pageNumber="51" rank="form">form vertically</taxonomicName>
on terminal nodule (
<figureCitation id="13502A240535F110FF11FF1DA819B0DD" box="[227,357,155,180]" captionStart="FIGURES3744" captionStartId="12.[136,243,1586,1607]" captionTargetBox="[152,1436,282,1562]" captionTargetId="figure-15@12.[151,1436,282,1562]" captionTargetPageId="12" captionText="FIGURES3744.Neidiumvandusenensesp.nov.SEM,internalview.Fig.37.Centralareawithoffsetforminginterconnectedhelictoglossae. Surface depressions (ghost striae) present in the central area. Figs 38, 39. Apex showing upright formation of the helictoglossae at the edge of the terminal nodule. Longitudinal canals blend in with areolae. Figs 40, 41. Margin of the valve showing multiple longitudinal canals. Open chambered formation (Fig. 41 (arrow), apical and transapical). Fig. 42. Renilimbia surround hymenae covered areolae (arrow). Figs 43, 44. Open copula band with 2 rows of poroids. Scale bars = 5 μm: Figs. 37, 38, 43; 2 μm: Figs 40, 41; 1 μm: Figs 42, 44." figureDoi="http://doi.org/10.5281/zenodo.13715220" httpUri="https://zenodo.org/record/13715220/files/figure.png" pageId="13" pageNumber="52">Figs 38, 39</figureCitation>
). Canals flat with valve face, all of equal size and form (
<figureCitation id="13502A240535F110FC2BFF1DAD26B0DD" box="[985,1114,155,180]" captionStart="FIGURES3744" captionStartId="12.[136,243,1586,1607]" captionTargetBox="[152,1436,282,1562]" captionTargetId="figure-15@12.[151,1436,282,1562]" captionTargetPageId="12" captionText="FIGURES3744.Neidiumvandusenensesp.nov.SEM,internalview.Fig.37.Centralareawithoffsetforminginterconnectedhelictoglossae. Surface depressions (ghost striae) present in the central area. Figs 38, 39. Apex showing upright formation of the helictoglossae at the edge of the terminal nodule. Longitudinal canals blend in with areolae. Figs 40, 41. Margin of the valve showing multiple longitudinal canals. Open chambered formation (Fig. 41 (arrow), apical and transapical). Fig. 42. Renilimbia surround hymenae covered areolae (arrow). Figs 43, 44. Open copula band with 2 rows of poroids. Scale bars = 5 μm: Figs. 37, 38, 43; 2 μm: Figs 40, 41; 1 μm: Figs 42, 44." figureDoi="http://doi.org/10.5281/zenodo.13715220" httpUri="https://zenodo.org/record/13715220/files/figure.png" pageId="13" pageNumber="52">Figs 40, 41</figureCitation>
); towards apex canals extends to hyaline terminal nodule at apex (
<figureCitation id="13502A240535F110FDE8FF39AB13B0B1" box="[538,623,191,216]" captionStart="FIGURES3744" captionStartId="12.[136,243,1586,1607]" captionTargetBox="[152,1436,282,1562]" captionTargetId="figure-15@12.[151,1436,282,1562]" captionTargetPageId="12" captionText="FIGURES3744.Neidiumvandusenensesp.nov.SEM,internalview.Fig.37.Centralareawithoffsetforminginterconnectedhelictoglossae. Surface depressions (ghost striae) present in the central area. Figs 38, 39. Apex showing upright formation of the helictoglossae at the edge of the terminal nodule. Longitudinal canals blend in with areolae. Figs 40, 41. Margin of the valve showing multiple longitudinal canals. Open chambered formation (Fig. 41 (arrow), apical and transapical). Fig. 42. Renilimbia surround hymenae covered areolae (arrow). Figs 43, 44. Open copula band with 2 rows of poroids. Scale bars = 5 μm: Figs. 37, 38, 43; 2 μm: Figs 40, 41; 1 μm: Figs 42, 44." figureDoi="http://doi.org/10.5281/zenodo.13715220" httpUri="https://zenodo.org/record/13715220/files/figure.png" pageId="13" pageNumber="52">Fig. 38</figureCitation>
). Areolae chambered with transapical interconnections (
<figureCitation id="13502A240535F110FB1AFF39AC46B0B1" box="[1256,1338,191,216]" captionStart="FIGURES3744" captionStartId="12.[136,243,1586,1607]" captionTargetBox="[152,1436,282,1562]" captionTargetId="figure-15@12.[151,1436,282,1562]" captionTargetPageId="12" captionText="FIGURES3744.Neidiumvandusenensesp.nov.SEM,internalview.Fig.37.Centralareawithoffsetforminginterconnectedhelictoglossae. Surface depressions (ghost striae) present in the central area. Figs 38, 39. Apex showing upright formation of the helictoglossae at the edge of the terminal nodule. Longitudinal canals blend in with areolae. Figs 40, 41. Margin of the valve showing multiple longitudinal canals. Open chambered formation (Fig. 41 (arrow), apical and transapical). Fig. 42. Renilimbia surround hymenae covered areolae (arrow). Figs 43, 44. Open copula band with 2 rows of poroids. Scale bars = 5 μm: Figs. 37, 38, 43; 2 μm: Figs 40, 41; 1 μm: Figs 42, 44." figureDoi="http://doi.org/10.5281/zenodo.13715220" httpUri="https://zenodo.org/record/13715220/files/figure.png" pageId="13" pageNumber="52">Fig. 41</figureCitation>
arrow, on mantle). Areolae covered by hymenes (
<figureCitation id="13502A240535F110FDCBFF65ABC5B095" box="[569,697,227,252]" captionStart="FIGURES3744" captionStartId="12.[136,243,1586,1607]" captionTargetBox="[152,1436,282,1562]" captionTargetId="figure-15@12.[151,1436,282,1562]" captionTargetPageId="12" captionText="FIGURES3744.Neidiumvandusenensesp.nov.SEM,internalview.Fig.37.Centralareawithoffsetforminginterconnectedhelictoglossae. Surface depressions (ghost striae) present in the central area. Figs 38, 39. Apex showing upright formation of the helictoglossae at the edge of the terminal nodule. Longitudinal canals blend in with areolae. Figs 40, 41. Margin of the valve showing multiple longitudinal canals. Open chambered formation (Fig. 41 (arrow), apical and transapical). Fig. 42. Renilimbia surround hymenae covered areolae (arrow). Figs 43, 44. Open copula band with 2 rows of poroids. Scale bars = 5 μm: Figs. 37, 38, 43; 2 μm: Figs 40, 41; 1 μm: Figs 42, 44." figureDoi="http://doi.org/10.5281/zenodo.13715220" httpUri="https://zenodo.org/record/13715220/files/figure.png" pageId="13" pageNumber="52">Figs 42, 43</figureCitation>
). Renilimbia (26) around areolae along axial area, and longitudinal canals (
<figureCitation id="13502A240535F110FF2DFE81A84AB149" box="[223,310,263,288]" captionStart="FIGURES3744" captionStartId="12.[136,243,1586,1607]" captionTargetBox="[152,1436,282,1562]" captionTargetId="figure-15@12.[151,1436,282,1562]" captionTargetPageId="12" captionText="FIGURES3744.Neidiumvandusenensesp.nov.SEM,internalview.Fig.37.Centralareawithoffsetforminginterconnectedhelictoglossae. Surface depressions (ghost striae) present in the central area. Figs 38, 39. Apex showing upright formation of the helictoglossae at the edge of the terminal nodule. Longitudinal canals blend in with areolae. Figs 40, 41. Margin of the valve showing multiple longitudinal canals. Open chambered formation (Fig. 41 (arrow), apical and transapical). Fig. 42. Renilimbia surround hymenae covered areolae (arrow). Figs 43, 44. Open copula band with 2 rows of poroids. Scale bars = 5 μm: Figs. 37, 38, 43; 2 μm: Figs 40, 41; 1 μm: Figs 42, 44." figureDoi="http://doi.org/10.5281/zenodo.13715220" httpUri="https://zenodo.org/record/13715220/files/figure.png" pageId="13" pageNumber="52">Fig. 42</figureCitation>
). Renilimbia also randomly scattered around areolae on the valve face. Copulae open bands, with 2 rows of pores (
<figureCitation id="13502A240535F110FEDDFEADA8CEB12D" box="[303,434,299,324]" captionStart="FIGURES3744" captionStartId="12.[136,243,1586,1607]" captionTargetBox="[152,1436,282,1562]" captionTargetId="figure-15@12.[151,1436,282,1562]" captionTargetPageId="12" captionText="FIGURES3744.Neidiumvandusenensesp.nov.SEM,internalview.Fig.37.Centralareawithoffsetforminginterconnectedhelictoglossae. Surface depressions (ghost striae) present in the central area. Figs 38, 39. Apex showing upright formation of the helictoglossae at the edge of the terminal nodule. Longitudinal canals blend in with areolae. Figs 40, 41. Margin of the valve showing multiple longitudinal canals. Open chambered formation (Fig. 41 (arrow), apical and transapical). Fig. 42. Renilimbia surround hymenae covered areolae (arrow). Figs 43, 44. Open copula band with 2 rows of poroids. Scale bars = 5 μm: Figs. 37, 38, 43; 2 μm: Figs 40, 41; 1 μm: Figs 42, 44." figureDoi="http://doi.org/10.5281/zenodo.13715220" httpUri="https://zenodo.org/record/13715220/files/figure.png" pageId="13" pageNumber="52">Figs 43, 44</figureCitation>
).
</paragraph>
<paragraph id="8BD436A10535F110FF4FFEC9AD27B1D9" blockId="13.[136,1452,155,1116]" pageId="13" pageNumber="52">
Type:—
<collectingCountry id="F37C76310535F110FEEAFEC9A8E8B101" box="[280,404,335,360]" name="Canada" pageId="13" pageNumber="52">CANADA</collectingCountry>
.
<collectingRegion id="49AFF8430535F110FE52FEC9AB1BB101" box="[416,615,335,360]" country="Canada" name="British Columbia" pageId="13" pageNumber="52">British Columbia</collectingRegion>
: Vancouver, VanDusen Botanical Garden, J. Holmes,
<date id="FFD510610535F110FB34FEC9ACD4B101" box="[1222,1448,335,360]" pageId="13" pageNumber="52" value="2016-12-28">December 28, 2016</date>
. Small stream at the end of Livingstone Lake (pond) (
<typeStatus id="54D088030535F110FD2DFEF5AA3BB1E5" box="[735,839,371,396]" pageId="13" pageNumber="52" type="holotype">holotype</typeStatus>
: CANA! 126257-7, fig.
<specimenCount id="9D6DFD280535F110FBA8FEF5AC28B1E5" box="[1114,1364,371,396]" count="22" pageId="13" pageNumber="52" type="generic" typeStatus="holotype">22 holotype specimen</specimenCount>
, circled on slide).
<typeStatus id="54D088030535F110FF05FE11A835B1D9" box="[247,329,407,432]" pageId="13" pageNumber="52" type="isotype">Isotype</typeStatus>
ANSP GC65327 (circled specimen on slide). Genbank #s See table 2.
</paragraph>
<paragraph id="8BD436A10535F110FF4FFE3DA99EB191" blockId="13.[136,1452,155,1116]" pageId="13" pageNumber="52">
Etymology:—The specific epithet (
<taxonomicName id="4C6B4D220535F110FDBAFE3DAB98B1BD" authorityName="Hamilton &amp; Savoie &amp; Sayre &amp; Skibbe &amp; Zimmermann &amp; Bull" authorityYear="2019" box="[584,740,443,468]" class="Bacillariophyceae" family="Neidiaceae" genus="Neidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="13" pageNumber="52" phylum="Ochrophyta" rank="species" species="vandusenense">
<emphasis id="B91FEAB30535F110FDBAFE3DAB98B1BD" box="[584,740,443,468]" italics="true" pageId="13" pageNumber="52">vandusenense</emphasis>
</taxonomicName>
), is recognized for the collection site at the VanDusen Botanical Garden.
</paragraph>
<paragraph id="8BD436A10535F110FF4FFD85ABEFB275" blockId="13.[136,1452,155,1116]" box="[189,659,515,540]" pageId="13" pageNumber="52">Registration: http//phycobank.org/102030</paragraph>
<paragraph id="8BD436A10535F110FF4FFDA1AB5BB2B9" blockId="13.[136,1452,155,1116]" pageId="13" pageNumber="52">
Observations:—Plastid
<emphasis id="B91FEAB30535F110FE3EFDA1A88DB229" box="[460,497,551,576]" italics="true" pageId="13" pageNumber="52">rbc</emphasis>
L DNA sequence, size (96116 μm), valve outline, 34 longitudinal canals, ghost striae along the margins of the central area and recessed mantle margins at the apices identify this taxon.
<taxonomicName id="4C6B4D220535F110FABEFDCDA858B2E1" authorityName="Hamilton &amp; Savoie &amp; Sayre &amp; Skibbe &amp; Zimmermann &amp; Bull" authorityYear="2019" class="Bacillariophyceae" family="Neidiaceae" genus="Neidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="13" pageNumber="52" phylum="Ochrophyta" rank="species" species="vandusenense">
<emphasis id="B91FEAB30535F110FABEFDCDA858B2E1" italics="true" pageId="13" pageNumber="52">Neidium vandusenense</emphasis>
</taxonomicName>
can be compared to
<taxonomicName id="4C6B4D220535F110FDFDFDE9AD40B2E1" authority="Metzeltin &amp; Lange-Bertalot (2007: 179)" authorityName="Metzeltin &amp; Lange-Bertalot" authorityPageNumber="179" authorityYear="2007" box="[527,1084,623,648]" class="Bacillariophyceae" family="Neidiaceae" genus="Neidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="13" pageNumber="52" phylum="Ochrophyta" rank="species" species="siveri">
<emphasis id="B91FEAB30535F110FDFDFDE9AB5EB2E1" box="[527,546,623,648]" italics="true" pageId="13" pageNumber="52">N</emphasis>
.
<emphasis id="B91FEAB30535F110FDC3FDE9AB13B2E1" box="[561,623,623,648]" italics="true" pageId="13" pageNumber="52">siveri</emphasis>
<bibRefCitation id="EFFA4B500535F110FD85FDE9AD40B2E1" author="Metzeltin, D. &amp; Lange-Bertalot, H." box="[631,1084,623,648]" pageId="13" pageNumber="52" pagination="1 - 877" refId="ref12668" refString="Metzeltin, D. &amp; Lange-Bertalot, H. (2007) Tropical Diatoms of South America II. Special remarks in the biogeographic disjunction. Iconographia Diatomologica 18: 1 - 877." type="journal article" year="2007">Metzeltin &amp; Lange-Bertalot (2007: 179)</bibRefCitation>
</taxonomicName>
with a similar valve outline, but
<taxonomicName id="4C6B4D220535F110FF7AFD15A839B2C5" authorityName="Hamilton &amp; Savoie &amp; Sayre &amp; Skibbe &amp; Zimmermann &amp; Bull" authorityYear="2019" box="[136,325,659,684]" class="Bacillariophyceae" family="Neidiaceae" genus="Neidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="13" pageNumber="52" phylum="Ochrophyta" rank="species" species="vandusenense">
<emphasis id="B91FEAB30535F110FF7AFD15A9E7B2C5" box="[136,155,659,684]" italics="true" pageId="13" pageNumber="52">N</emphasis>
.
<emphasis id="B91FEAB30535F110FF5BFD15A839B2C5" box="[169,325,659,684]" italics="true" pageId="13" pageNumber="52">vandusenense</emphasis>
</taxonomicName>
is distinguished by the larger size (6474 μm long,
<taxonomicName id="4C6B4D220535F110FC63FD15AA8CB2C5" authorityName="Metzeltin &amp; Lange-Bertalot" authorityYear="2007" box="[913,1008,659,684]" class="Bacillariophyceae" family="Neidiaceae" genus="Neidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="13" pageNumber="52" phylum="Ochrophyta" rank="species" species="siveri">
<emphasis id="B91FEAB30535F110FC63FD15AA8CB2C5" box="[913,1008,659,684]" italics="true" pageId="13" pageNumber="52">N. siveri</emphasis>
</taxonomicName>
), more than one longitudinal canal and the weak oblique striation formation.
</paragraph>
</subSubSection>
<subSubSection id="C371652A0535F110FF4FFD5DAB6EB435" pageId="13" pageNumber="52" type="reference_group">
<paragraph id="8BD436A10535F110FF4FFD5DAB07B3C1" blockId="13.[136,1452,155,1116]" pageId="13" pageNumber="52">
<taxonomicName id="4C6B4D220535F110FF4FFD5DA8BEB29D" authorityName="Hamilton &amp; Savoie &amp; Sayre &amp; Skibbe &amp; Zimmermann &amp; Bull" authorityYear="2019" box="[189,450,731,756]" class="Bacillariophyceae" family="Neidiaceae" genus="Neidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="13" pageNumber="52" phylum="Ochrophyta" rank="species" species="vandusenense">
<emphasis id="B91FEAB30535F110FF4FFD5DA8BEB29D" box="[189,450,731,756]" italics="true" pageId="13" pageNumber="52">Neidium vandusenense</emphasis>
</taxonomicName>
can also be compared to
<taxonomicName id="4C6B4D220535F110FD1CFD5DAD3AB29D" authority="Gandhi (1959: 313" authorityName="Gandhi" authorityYear="1959" box="[750,1094,731,756]" class="Bacillariophyceae" family="Neidiaceae" genus="Neidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="13" pageNumber="52" phylum="Ochrophyta" rank="species" species="grande">
<emphasis id="B91FEAB30535F110FD1CFD5DAA1DB29D" box="[750,865,731,756]" italics="true" pageId="13" pageNumber="52">N. grande</emphasis>
<bibRefCitation id="EFFA4B500535F110FC99FD5DAD3AB29D" author="Gandhi, H. P." box="[875,1094,731,756]" pageId="13" pageNumber="52" pagination="305 - 331" refId="ref11497" refString="Gandhi, H. P. (1959) Fresh-water diatoms from Sagar in the Mysore State. Journal of the Indian Botanical Society 38 (3): 305 - 331." type="journal article" year="1959">Gandhi (1959: 313</bibRefCitation>
</taxonomicName>
, as
<taxonomicName id="4C6B4D220535F110FB87FD5DAD93B29D" authorityName="Gandhi" authorityYear="1959" box="[1141,1263,731,756]" class="Bacillariophyceae" family="Neidiaceae" genus="Neidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="13" pageNumber="52" phylum="Ochrophyta" rank="species" species="grandis">
<emphasis id="B91FEAB30535F110FB87FD5DAD93B29D" box="[1141,1263,731,756]" italics="true" pageId="13" pageNumber="52">N. grandis</emphasis>
</taxonomicName>
) with respect to general valve outline, protracted apices, and multiple longitudinal canals.
<taxonomicName id="4C6B4D220535F110FC20FD79ADECB371" authorityName="Hamilton &amp; Savoie &amp; Sayre &amp; Skibbe &amp; Zimmermann &amp; Bull" authorityYear="2019" box="[978,1168,767,792]" class="Bacillariophyceae" family="Neidiaceae" genus="Neidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="13" pageNumber="52" phylum="Ochrophyta" rank="species" species="vandusenense">
<emphasis id="B91FEAB30535F110FC20FD79ADECB371" box="[978,1168,767,792]" italics="true" pageId="13" pageNumber="52">N. vandusenense</emphasis>
</taxonomicName>
is differentiated from
<taxonomicName id="4C6B4D220535F110FA60FD79A9ABB355" authorityName="Gandhi" authorityYear="1959" class="Bacillariophyceae" family="Neidiaceae" genus="Neidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="13" pageNumber="52" phylum="Ochrophyta" rank="species" species="grande">
<emphasis id="B91FEAB30535F110FA60FD79A9ABB355" italics="true" pageId="13" pageNumber="52">N. grande</emphasis>
</taxonomicName>
by larger size (4555 μm,
<taxonomicName id="4C6B4D220535F110FE0DFCA5AB11B355" authorityName="Gandhi" authorityYear="1959" box="[511,621,803,828]" class="Bacillariophyceae" family="Neidiaceae" genus="Neidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="13" pageNumber="52" phylum="Ochrophyta" rank="species" species="grande">
<emphasis id="B91FEAB30535F110FE0DFCA5AB6EB355" box="[511,530,803,828]" italics="true" pageId="13" pageNumber="52">N</emphasis>
.
<emphasis id="B91FEAB30535F110FDECFCA5AB11B355" box="[542,621,803,828]" italics="true" pageId="13" pageNumber="52">grande</emphasis>
</taxonomicName>
), linear to slightly triundulate valve margins (not elliptic), and stria density (
<quantity id="4C939B440535F110FF62FCC1A989B309" box="[144,245,839,864]" metricMagnitude="-1" metricUnit="m" metricValue="6.858" metricValueMax="7.112" metricValueMin="6.604" pageId="13" pageNumber="52" unit="in" value="27.0" valueMax="28.0" valueMin="26.0">2628 in</quantity>
10 μm,
<taxonomicName id="4C6B4D220535F110FEA7FCC1A8B9B309" authorityName="Gandhi" authorityYear="1959" box="[341,453,839,864]" class="Bacillariophyceae" family="Neidiaceae" genus="Neidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="13" pageNumber="52" phylum="Ochrophyta" rank="species" species="grande">
<emphasis id="B91FEAB30535F110FEA7FCC1A814B309" box="[341,360,839,864]" italics="true" pageId="13" pageNumber="52">N</emphasis>
.
<emphasis id="B91FEAB30535F110FE84FCC1A8B9B309" box="[374,453,839,864]" italics="true" pageId="13" pageNumber="52">grande</emphasis>
</taxonomicName>
). No ghost striae were observed in
<taxonomicName id="4C6B4D220535F110FCAAFCC1AAB4B309" authorityName="Gandhi" authorityYear="1959" box="[856,968,839,864]" class="Bacillariophyceae" family="Neidiaceae" genus="Neidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="13" pageNumber="52" phylum="Ochrophyta" rank="species" species="grande">
<emphasis id="B91FEAB30535F110FCAAFCC1AAB4B309" box="[856,968,839,864]" italics="true" pageId="13" pageNumber="52">N. grande</emphasis>
</taxonomicName>
. Another comparison can be made with
<taxonomicName id="4C6B4D220535F110FA60FCC1A889B3ED" authority="Gandhi (1959: 313" authorityName="Gandhi" authorityYear="1959" class="Bacillariophyceae" family="Neidiaceae" genus="Neidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="13" pageNumber="52" phylum="Ochrophyta" rank="species" species="capitellatum">
<emphasis id="B91FEAB30535F110FA60FCC1A868B3ED" italics="true" pageId="13" pageNumber="52">N. capitellatum</emphasis>
<bibRefCitation id="EFFA4B500535F110FEEEFCEDA889B3ED" author="Gandhi, H. P." box="[284,501,875,900]" pageId="13" pageNumber="52" pagination="305 - 331" refId="ref11497" refString="Gandhi, H. P. (1959) Fresh-water diatoms from Sagar in the Mysore State. Journal of the Indian Botanical Society 38 (3): 305 - 331." type="journal article" year="1959">Gandhi (1959: 313</bibRefCitation>
</taxonomicName>
, as
<taxonomicName id="4C6B4D220535F110FDD3FCEDABC7B3ED" authorityName="Gandhi" authorityYear="1959" box="[545,699,875,900]" class="Bacillariophyceae" family="Neidiaceae" genus="Neidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="13" pageNumber="52" phylum="Ochrophyta" rank="species" species="capitellata">
<emphasis id="B91FEAB30535F110FDD3FCEDABC7B3ED" box="[545,699,875,900]" italics="true" pageId="13" pageNumber="52">N. capitellata</emphasis>
</taxonomicName>
) with respect to valve outline, although
<taxonomicName id="4C6B4D220535F110FB7AFCEDAC4AB3ED" authorityName="Gandhi" authorityYear="1959" box="[1160,1334,875,900]" class="Bacillariophyceae" family="Neidiaceae" genus="Neidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="13" pageNumber="52" phylum="Ochrophyta" rank="species" species="capitellatum">
<emphasis id="B91FEAB30535F110FB7AFCEDAC4AB3ED" box="[1160,1334,875,900]" italics="true" pageId="13" pageNumber="52">N. capitellatum</emphasis>
</taxonomicName>
is smaller (4686 μm long) and the apices are capitate.
</paragraph>
<paragraph id="8BD436A10535F110FF4FFC35AB6EB435" blockId="13.[136,1452,155,1116]" pageId="13" pageNumber="52">
In North America compare with
<taxonomicName id="4C6B4D220535F110FDC5FC35AD84B3A5" authority="Reimer (Patrick &amp; Reimer 1966: 392)" authorityName="Reimer (Patrick &amp; Reimer" authorityYear="1966" box="[567,1272,947,972]" class="Bacillariophyceae" family="Neidiaceae" genus="Neidiomorpha" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="13" pageNumber="52" phylum="Ochrophyta" rank="variety" species="affine" variety="humerus">
<emphasis id="B91FEAB30535F110FDC5FC35ABE6B3A5" box="[567,666,947,972]" italics="true" pageId="13" pageNumber="52">N. affine</emphasis>
var.
<emphasis id="B91FEAB30535F110FD2AFC35AA44B3A5" box="[728,824,947,972]" italics="true" pageId="13" pageNumber="52">humerus</emphasis>
Reimer (
<bibRefCitation id="EFFA4B500535F110FC57FC35AD8DB3A5" author="Patrick, R. M. &amp; Reimer, C. W." box="[933,1265,947,972]" pageId="13" pageNumber="52" refId="ref12815" refString="Patrick, R. M. &amp; Reimer, C. W. (1966) The diatoms of the United States exclusive of Alaska and Hawaii. Volume 1. Fragilariaceae, Eunotoniaceae, Achnanthaceae, Naviculaceae. Monographs of the Academy of Natural Sciences of Philadelphia 13: 688, 64 pls. https: // doi. org / 10.2307 / 1351135" type="journal volume" year="1966">Patrick &amp; Reimer 1966: 392</bibRefCitation>
)
</taxonomicName>
with respect to similar valve outline and ghost striae along the central area.
<taxonomicName id="4C6B4D220535F110FCB1FC51AD7EB399" authorityName="Hamilton &amp; Savoie &amp; Sayre &amp; Skibbe &amp; Zimmermann &amp; Bull" authorityYear="2019" box="[835,1026,983,1008]" class="Bacillariophyceae" family="Neidiaceae" genus="Neidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="13" pageNumber="52" phylum="Ochrophyta" rank="species" species="vandusenense">
<emphasis id="B91FEAB30535F110FCB1FC51AD7EB399" box="[835,1026,983,1008]" italics="true" pageId="13" pageNumber="52">N. vandusenense</emphasis>
</taxonomicName>
is larger than
<taxonomicName id="4C6B4D220535F110FB5EFC51ACD7B399" authorityName="Reimer (Patrick &amp; Reimer" authorityYear="1966" box="[1196,1451,983,1008]" class="Bacillariophyceae" family="Neidiaceae" genus="Neidiomorpha" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="13" pageNumber="52" phylum="Ochrophyta" rank="variety" species="affine" variety="humerus">
<emphasis id="B91FEAB30535F110FB5EFC51ADC3B399" box="[1196,1215,983,1008]" italics="true" pageId="13" pageNumber="52">N</emphasis>
.
<emphasis id="B91FEAB30535F110FB3DFC51AC73B399" box="[1231,1295,983,1008]" italics="true" pageId="13" pageNumber="52">affine</emphasis>
var.
<emphasis id="B91FEAB30535F110FAB9FC51ACD7B399" box="[1355,1451,983,1008]" italics="true" pageId="13" pageNumber="52">humerus</emphasis>
</taxonomicName>
(4178 μm long), the valve margins of
<taxonomicName id="4C6B4D220535F110FDCCFC7DAB87B47D" authorityName="Hamilton &amp; Savoie &amp; Sayre &amp; Skibbe &amp; Zimmermann &amp; Bull" authorityYear="2019" box="[574,763,1019,1044]" class="Bacillariophyceae" family="Neidiaceae" genus="Neidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="13" pageNumber="52" phylum="Ochrophyta" rank="species" species="vandusenense">
<emphasis id="B91FEAB30535F110FDCCFC7DAB2DB47D" box="[574,593,1019,1044]" italics="true" pageId="13" pageNumber="52">N</emphasis>
.
<emphasis id="B91FEAB30535F110FDADFC7DAB87B47D" box="[607,763,1019,1044]" italics="true" pageId="13" pageNumber="52">vandusenense</emphasis>
</taxonomicName>
are more linear and sometimes weakly triundulate, the apices more protracted and 3
<superScript id="7C1E9BE90535F110FE72FB9BA8F5B442" attach="left" box="[384,393,1053,1067]" fontSize="6" pageId="13" pageNumber="52">+</superScript>
longitudinal canals versus 1(2) in
<taxonomicName id="4C6B4D220535F110FCFDFB99AD74B451" authorityName="Reimer (Patrick &amp; Reimer" authorityYear="1966" box="[783,1032,1055,1080]" class="Bacillariophyceae" family="Neidiaceae" genus="Neidiomorpha" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="13" pageNumber="52" phylum="Ochrophyta" rank="variety" species="affine" variety="humerus">
<emphasis id="B91FEAB30535F110FCFDFB99AA0CB451" box="[783,880,1055,1080]" italics="true" pageId="13" pageNumber="52">N. affine</emphasis>
var.
<emphasis id="B91FEAB30535F110FC5AFB99AD74B451" box="[936,1032,1055,1080]" italics="true" pageId="13" pageNumber="52">humerus</emphasis>
</taxonomicName>
. The stria and areolae densities of
<taxonomicName id="4C6B4D220535F110FA60FB99A823B435" authorityName="Reimer (Patrick &amp; Reimer" authorityYear="1966" class="Bacillariophyceae" family="Neidiaceae" genus="Neidiomorpha" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="13" pageNumber="52" phylum="Ochrophyta" rank="variety" species="affine" variety="humerus">
<emphasis id="B91FEAB30535F110FA60FB99ACD9B451" box="[1426,1445,1055,1080]" italics="true" pageId="13" pageNumber="52">N</emphasis>
.
<emphasis id="B91FEAB30535F110FF7AFBC5A9B4B435" box="[136,200,1091,1116]" italics="true" pageId="13" pageNumber="52">affine</emphasis>
var.
<emphasis id="B91FEAB30535F110FF0DFBC5A823B435" box="[255,351,1091,1116]" italics="true" pageId="13" pageNumber="52">humerus</emphasis>
</taxonomicName>
are also higher.
</paragraph>
</subSubSection>
</treatment>
</document>