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<document id="03E1D038D52D57B2AA851C81EC57B2AC" ID-DOI="10.11646/phytotaxa.267.4.1" ID-ISSN="1179-3163" ID-Zenodo-Dep="13667166" 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="1725393618641" checkinUser="felipe" docAuthor="Tudesque, Loïc, Cohu, René Le &amp; Wetzel, Carlos E." docDate="2016" docId="A9278170FFD08106FF5B55496C6DFE7B" docLanguage="en" docName="phytotaxa.267.4.1.pdf" docOrigin="Phytotaxa 267 (4)" docSource="http://dx.doi.org/10.11646/phytotaxa.267.4.1" docStyle="DocumentStyle:96748F8F1B6C902996E134952A3A36B9.13:Phytotaxa.2014-.journal_article" docStyleId="96748F8F1B6C902996E134952A3A36B9" docStyleName="Phytotaxa.2014-.journal_article" docStyleVersion="13" docTitle="Platessa guianensis Le Cohu, Tudesque &amp; C. E. Wetzel 2016, sp. nov." docType="treatment" docVersion="2" lastPageNumber="245" masterDocId="551EF908FFD3810EFFD3522E681CFF86" masterDocTitle="Two new Platessa (Bacillariophyceae) from Amazonia: Platessa guianensis spec. nov., and P. itoupensis spec. nov." masterLastPageNumber="255" masterPageNumber="237" pageNumber="240" updateTime="1725415697412" updateUser="ExternalLinkService" zenodo-license-figures="UNSPECIFIED" zenodo-license-treatments="UNSPECIFIED">
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<mods:title id="B31C0C27BD9F021C56B36A4D1D3A18A6">Two new Platessa (Bacillariophyceae) from Amazonia: Platessa guianensis spec. nov., and P. itoupensis spec. nov.</mods:title>
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<mods:namePart id="1AAE0B1EE060B0980D210D40902A2B4A">Tudesque, Loïc</mods:namePart>
<mods:affiliation id="D4770099BDF4C741A87C9EC50A6DCDC7">Laboratoire Évolution &amp; Diversité Biologique (EDB UMR 5174), Université de Toulouse, CNRS, ENFA, UPS, 118 route de Narbonne, F- 31062 Toulouse, France</mods:affiliation>
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<mods:namePart id="D2B690FEFF7263742AF4627F3BE3DFD0">Cohu, René Le</mods:namePart>
<mods:affiliation id="696A722F11626269C1AF9964BE76A0F3">Laboratoire décologie fonctionnelle et environnement (ECOLAB UMR 5245), Université de Toulouse, CNRS, ENFA, UPS, 118 route de Narbonne, F- 31062 Toulouse, France</mods:affiliation>
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<mods:namePart id="6E4851B794FC0D024191D2236330DE2A">Wetzel, Carlos E.</mods:namePart>
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<taxonomicName id="E68E4BE5FFD0810DFF5B55496B19F805" authority="Le Cohu, Tudesque &amp; C.E.Wetzel" authorityName="Le Cohu, Tudesque &amp; C. E. Wetzel" authorityYear="2016" box="[136,773,1895,1923]" class="Bacillariophyceae" family="Achnanthaceae" genus="Platessa" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="3" pageNumber="240" phylum="Bacillariophyta" rank="species" species="guianensis" status="sp. nov.">
<emphasis id="13FAEC74FFD0810DFF5B55496976F804" bold="true" box="[136,362,1895,1922]" italics="true" pageId="3" pageNumber="240">Platessa guianensis</emphasis>
Le Cohu, Tudesque &amp; C.E.Wetzel
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.
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(
<figureCitation id="B9B52CE3FFD0810DFCAB55446BF2F805" box="[888,1006,1897,1923]" captionStart-0="FIGURES 237" captionStart-1="FIGURES 3842" captionStart-2="FIGURES 4345" captionStart-3="FIGURES 4671" captionStartId-0="4.[136,243,1688,1709]" captionStartId-1="5.[136,243,1808,1829]" captionStartId-2="6.[136,243,1948,1969]" captionStartId-3="7.[136,243,1854,1875]" captionTargetBox-0="[166,1424,941,1647]" captionTargetBox-1="[161,1426,209,1774]" captionTargetBox-2="[207,1387,209,1913]" captionTargetBox-3="[169,1426,207,1821]" captionTargetId-0="figure-459@4.[151,1436,926,1662]" captionTargetId-1="figure-14@5.[151,1436,190,1783]" captionTargetId-2="figure-16@6.[190,1398,190,1923]" captionTargetId-3="figure-14@7.[151,1436,190,1829]" captionTargetPageId-0="4" captionTargetPageId-1="5" captionTargetPageId-2="6" captionTargetPageId-3="7" captionText-0="FIGURES 237. Platessa guianensis sp. nov., type material from French Guiana, LM, range of size. 213, 14a25a. Raphe sternum valve (RSV). 14b25b, 2637. Sternum valve (SV)." captionText-1="FIGURES 3842. Platessa guianensis sp. nov., type material from French Guiana SEM. 38. External view of the RSV showing the raphe sternum features, the biseriate striae, the concavity of the valve and the discontinuous row of elongated “poroids” on the mantle. 39. Detail of the proximal raphe ending surrounded by a groove (arrow). 40. Detail of the distal raphe ending with delta-shaped groove with angular outline (arrow) and discontinuity of the mantle “poroids”. 41. Internal view of the RSV showing the raphe sternum features with proximal raphe endings deflected in opposite directions, slightly deflected distal raphe endings, tiny helictoglossae. 42. Ultrastructural detail of the internal aperture of the areola (cribrum) and inner view of poroid (arrow)." captionText-2="FIGURES 4345. Platessa guianensis sp. nov., type material from French Guiana SEM. 43. External view of the SV with tiny depressions in the axial area, elongated poroids on the mantle located in a groove. Notches (arrows). 44. Complete frustule showing internal view of the RSV and internal view of the SV, the open copulae, the valvocopula and the notches (arrow). 45. Internal view of the SV with trace of vestigial raphe (arrow)." captionText-3="FIGURES 4671. Platessa guianensis sp. nov. from Rio Negro basin (Brazilian Amazon), LM and SEM. 4655: sternum valve. 5664: raphe sternum valve. 65, 67, 69, 71. External views. 66, 68, 70. Internal views. Note the internal row of tiny marginal poroids (Figs 66, 68, arrows) and grooves on the raphe branches (Fig. 67, arrow). 4668: Sample SP-400. 274, Rio Negro, Brazilian Amazon. 6971 Sample SP-400.315, Rio Negro, Brazilian Amazon." figureDoi-0="http://doi.org/10.5281/zenodo.13667174" figureDoi-1="http://doi.org/10.5281/zenodo.13667178" figureDoi-2="http://doi.org/10.5281/zenodo.13667184" figureDoi-3="http://doi.org/10.5281/zenodo.13667190" httpUri-0="https://zenodo.org/record/13667174/files/figure.png" httpUri-1="https://zenodo.org/record/13667178/files/figure.png" httpUri-2="https://zenodo.org/record/13667184/files/figure.png" httpUri-3="https://zenodo.org/record/13667190/files/figure.png" pageId="3" pageNumber="240">Figs 271</figureCitation>
)
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<paragraph id="21313066FFD0810AFF5B559A6D02FC9F" blockId="3.[136,1452,1972,2065]" lastBlockId="4.[136,1452,160,901]" lastPageId="4" lastPageNumber="241" pageId="3" pageNumber="240">
LM (
<figureCitation id="B9B52CE3FFD0810DFF6A559A6901F84F" box="[185,285,1972,1993]" captionStart="FIGURES 237" captionStartId="4.[136,243,1688,1709]" captionTargetBox="[166,1424,941,1647]" captionTargetId="figure-459@4.[151,1436,926,1662]" captionTargetPageId="4" captionText="FIGURES 237. Platessa guianensis sp. nov., type material from French Guiana, LM, range of size. 213, 14a25a. Raphe sternum valve (RSV). 14b25b, 2637. Sternum valve (SV)." figureDoi="http://doi.org/10.5281/zenodo.13667174" httpUri="https://zenodo.org/record/13667174/files/figure.png" pageId="3" pageNumber="240">Figs 237</figureCitation>
,
<figureCitation id="B9B52CE3FFD0810DFEFB559A6975F84F" box="[296,361,1972,1993]" captionStart="FIGURES 4671" captionStartId="7.[136,243,1854,1875]" captionTargetBox="[169,1426,207,1821]" captionTargetId="figure-14@7.[151,1436,190,1829]" captionTargetPageId="7" captionText="FIGURES 4671. Platessa guianensis sp. nov. from Rio Negro basin (Brazilian Amazon), LM and SEM. 4655: sternum valve. 5664: raphe sternum valve. 65, 67, 69, 71. External views. 66, 68, 70. Internal views. Note the internal row of tiny marginal poroids (Figs 66, 68, arrows) and grooves on the raphe branches (Fig. 67, arrow). 4668: Sample SP-400. 274, Rio Negro, Brazilian Amazon. 6971 Sample SP-400.315, Rio Negro, Brazilian Amazon." figureDoi="http://doi.org/10.5281/zenodo.13667190" httpUri="https://zenodo.org/record/13667190/files/figure.png" pageId="3" pageNumber="240">4664</figureCitation>
): Valves elliptic-rhomboidal with broadly rounded apices. Length: 9.015.3 μm, width: 6.78.9 μm, ratio length/ width: 1.51.8 (n= 67). Raphe-sternum valve (RSV) (
<figureCitation id="B9B52CE3FFD0810DFD1455F66B97F86B" box="[711,907,2008,2029]" captionStart="FIGURES 237" captionStartId="4.[136,243,1688,1709]" captionTargetBox="[166,1424,941,1647]" captionTargetId="figure-459@4.[151,1436,926,1662]" captionTargetPageId="4" captionText="FIGURES 237. Platessa guianensis sp. nov., type material from French Guiana, LM, range of size. 213, 14a25a. Raphe sternum valve (RSV). 14b25b, 2637. Sternum valve (SV)." figureDoi="http://doi.org/10.5281/zenodo.13667174" httpUri="https://zenodo.org/record/13667174/files/figure.png" pageId="3" pageNumber="240">Figs 213, 14a25a</figureCitation>
,
<figureCitation id="B9B52CE3FFD0810DFC4555F66BCBF86B" box="[918,983,2008,2029]" captionStart="FIGURES 4671" captionStartId="7.[136,243,1854,1875]" captionTargetBox="[169,1426,207,1821]" captionTargetId="figure-14@7.[151,1436,190,1829]" captionTargetPageId="7" captionText="FIGURES 4671. Platessa guianensis sp. nov. from Rio Negro basin (Brazilian Amazon), LM and SEM. 4655: sternum valve. 5664: raphe sternum valve. 65, 67, 69, 71. External views. 66, 68, 70. Internal views. Note the internal row of tiny marginal poroids (Figs 66, 68, arrows) and grooves on the raphe branches (Fig. 67, arrow). 4668: Sample SP-400. 274, Rio Negro, Brazilian Amazon. 6971 Sample SP-400.315, Rio Negro, Brazilian Amazon." figureDoi="http://doi.org/10.5281/zenodo.13667190" httpUri="https://zenodo.org/record/13667190/files/figure.png" pageId="3" pageNumber="240">5664</figureCitation>
): axial area very narrow almost non-discernible; central area transapically expanded and bordered by several alternately longer and shorter striae (3 to 5—mostly 5). Striae more irregularly spaced from one other in the central area. Striae clearly radiate throughout the valve,
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10 μm. Raphe filiform with expanded proximal endings. Sternum valve (SV) (
<figureCitation id="B9B52CE3FFD7810AFD0152EA6BB8FF5F" box="[722,932,196,217]" captionStart="FIGURES 237" captionStartId="4.[136,243,1688,1709]" captionTargetBox="[166,1424,941,1647]" captionTargetId="figure-459@4.[151,1436,926,1662]" captionTargetPageId="4" captionText="FIGURES 237. Platessa guianensis sp. nov., type material from French Guiana, LM, range of size. 213, 14a25a. Raphe sternum valve (RSV). 14b25b, 2637. Sternum valve (SV)." figureDoi="http://doi.org/10.5281/zenodo.13667174" httpUri="https://zenodo.org/record/13667174/files/figure.png" pageId="4" pageNumber="241">Figs 14b25b, 2637</figureCitation>
,
<figureCitation id="B9B52CE3FFD7810AFC7D52EA6BECFF5F" box="[942,1008,196,217]" captionStart="FIGURES 4671" captionStartId="7.[136,243,1854,1875]" captionTargetBox="[169,1426,207,1821]" captionTargetId="figure-14@7.[151,1436,190,1829]" captionTargetPageId="7" captionText="FIGURES 4671. Platessa guianensis sp. nov. from Rio Negro basin (Brazilian Amazon), LM and SEM. 4655: sternum valve. 5664: raphe sternum valve. 65, 67, 69, 71. External views. 66, 68, 70. Internal views. Note the internal row of tiny marginal poroids (Figs 66, 68, arrows) and grooves on the raphe branches (Fig. 67, arrow). 4668: Sample SP-400. 274, Rio Negro, Brazilian Amazon. 6971 Sample SP-400.315, Rio Negro, Brazilian Amazon." figureDoi="http://doi.org/10.5281/zenodo.13667190" httpUri="https://zenodo.org/record/13667190/files/figure.png" pageId="4" pageNumber="241">4655</figureCitation>
): wide rhomboidal to elliptical axial area with numerous dots. Short striae,
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10 μm, parallel in the center and becoming radiate to the apices. On both valves the optical focus on the entire valve is not possible, suggesting the curvature of the frustule. SEM (
<figureCitation id="B9B52CE3FFD7810AFC2F53226C77FEA7" box="[1020,1131,268,289]" captionStart-0="FIGURES 3842" captionStart-1="FIGURES 4345" captionStartId-0="5.[136,243,1808,1829]" captionStartId-1="6.[136,243,1948,1969]" captionTargetBox-0="[161,1426,209,1774]" captionTargetBox-1="[207,1387,209,1913]" captionTargetId-0="figure-14@5.[151,1436,190,1783]" captionTargetId-1="figure-16@6.[190,1398,190,1923]" captionTargetPageId-0="5" captionTargetPageId-1="6" captionText-0="FIGURES 3842. Platessa guianensis sp. nov., type material from French Guiana SEM. 38. External view of the RSV showing the raphe sternum features, the biseriate striae, the concavity of the valve and the discontinuous row of elongated “poroids” on the mantle. 39. Detail of the proximal raphe ending surrounded by a groove (arrow). 40. Detail of the distal raphe ending with delta-shaped groove with angular outline (arrow) and discontinuity of the mantle “poroids”. 41. Internal view of the RSV showing the raphe sternum features with proximal raphe endings deflected in opposite directions, slightly deflected distal raphe endings, tiny helictoglossae. 42. Ultrastructural detail of the internal aperture of the areola (cribrum) and inner view of poroid (arrow)." captionText-1="FIGURES 4345. Platessa guianensis sp. nov., type material from French Guiana SEM. 43. External view of the SV with tiny depressions in the axial area, elongated poroids on the mantle located in a groove. Notches (arrows). 44. Complete frustule showing internal view of the RSV and internal view of the SV, the open copulae, the valvocopula and the notches (arrow). 45. Internal view of the SV with trace of vestigial raphe (arrow)." figureDoi-0="http://doi.org/10.5281/zenodo.13667178" figureDoi-1="http://doi.org/10.5281/zenodo.13667184" httpUri-0="https://zenodo.org/record/13667178/files/figure.png" httpUri-1="https://zenodo.org/record/13667184/files/figure.png" pageId="4" pageNumber="241">Figs 3845</figureCitation>
,
<figureCitation id="B9B52CE3FFD7810AFBA653226CA9FEA7" box="[1141,1205,268,289]" captionStart="FIGURES 4671" captionStartId="7.[136,243,1854,1875]" captionTargetBox="[169,1426,207,1821]" captionTargetId="figure-14@7.[151,1436,190,1829]" captionTargetPageId="7" captionText="FIGURES 4671. Platessa guianensis sp. nov. from Rio Negro basin (Brazilian Amazon), LM and SEM. 4655: sternum valve. 5664: raphe sternum valve. 65, 67, 69, 71. External views. 66, 68, 70. Internal views. Note the internal row of tiny marginal poroids (Figs 66, 68, arrows) and grooves on the raphe branches (Fig. 67, arrow). 4668: Sample SP-400. 274, Rio Negro, Brazilian Amazon. 6971 Sample SP-400.315, Rio Negro, Brazilian Amazon." figureDoi="http://doi.org/10.5281/zenodo.13667190" httpUri="https://zenodo.org/record/13667190/files/figure.png" pageId="4" pageNumber="241">6571</figureCitation>
): externally, RSV slightly concave. Raphe branches straight with proximal endings surrounded by a shallow groove extending on either side of the raphe fissure on a short distance between the central and the terminal pore (
<figureCitation id="B9B52CE3FFD7810AFCDF537A6B66FEEF" box="[780,890,340,361]" captionStart="FIGURES 3842" captionStartId="5.[136,243,1808,1829]" captionTargetBox="[161,1426,209,1774]" captionTargetId="figure-14@5.[151,1436,190,1783]" captionTargetPageId="5" captionText="FIGURES 3842. Platessa guianensis sp. nov., type material from French Guiana SEM. 38. External view of the RSV showing the raphe sternum features, the biseriate striae, the concavity of the valve and the discontinuous row of elongated “poroids” on the mantle. 39. Detail of the proximal raphe ending surrounded by a groove (arrow). 40. Detail of the distal raphe ending with delta-shaped groove with angular outline (arrow) and discontinuity of the mantle “poroids”. 41. Internal view of the RSV showing the raphe sternum features with proximal raphe endings deflected in opposite directions, slightly deflected distal raphe endings, tiny helictoglossae. 42. Ultrastructural detail of the internal aperture of the areola (cribrum) and inner view of poroid (arrow)." figureDoi="http://doi.org/10.5281/zenodo.13667178" httpUri="https://zenodo.org/record/13667178/files/figure.png" pageId="4" pageNumber="241">Figs 38, 39</figureCitation>
,
<figureCitation id="B9B52CE3FFD7810AFC57537A6B80FEEF" box="[900,924,340,361]" captionStart="FIGURES 4671" captionStartId="7.[136,243,1854,1875]" captionTargetBox="[169,1426,207,1821]" captionTargetId="figure-14@7.[151,1436,190,1829]" captionTargetPageId="7" captionText="FIGURES 4671. Platessa guianensis sp. nov. from Rio Negro basin (Brazilian Amazon), LM and SEM. 4655: sternum valve. 5664: raphe sternum valve. 65, 67, 69, 71. External views. 66, 68, 70. Internal views. Note the internal row of tiny marginal poroids (Figs 66, 68, arrows) and grooves on the raphe branches (Fig. 67, arrow). 4668: Sample SP-400. 274, Rio Negro, Brazilian Amazon. 6971 Sample SP-400.315, Rio Negro, Brazilian Amazon." figureDoi="http://doi.org/10.5281/zenodo.13667190" httpUri="https://zenodo.org/record/13667190/files/figure.png" pageId="4" pageNumber="241">67</figureCitation>
arrows). Distal raphe endings located in a cone-shaped (delta) depression bordered by a shallow groove (
<figureCitation id="B9B52CE3FFD7810AFD7753566AECFE0B" box="[676,752,376,397]" captionStart="FIGURES 3842" captionStartId="5.[136,243,1808,1829]" captionTargetBox="[161,1426,209,1774]" captionTargetId="figure-14@5.[151,1436,190,1783]" captionTargetPageId="5" captionText="FIGURES 3842. Platessa guianensis sp. nov., type material from French Guiana SEM. 38. External view of the RSV showing the raphe sternum features, the biseriate striae, the concavity of the valve and the discontinuous row of elongated “poroids” on the mantle. 39. Detail of the proximal raphe ending surrounded by a groove (arrow). 40. Detail of the distal raphe ending with delta-shaped groove with angular outline (arrow) and discontinuity of the mantle “poroids”. 41. Internal view of the RSV showing the raphe sternum features with proximal raphe endings deflected in opposite directions, slightly deflected distal raphe endings, tiny helictoglossae. 42. Ultrastructural detail of the internal aperture of the areola (cribrum) and inner view of poroid (arrow)." figureDoi="http://doi.org/10.5281/zenodo.13667178" httpUri="https://zenodo.org/record/13667178/files/figure.png" pageId="4" pageNumber="241">Figs 40</figureCitation>
,
<figureCitation id="B9B52CE3FFD7810AFD2F53566B08FE0B" box="[764,788,376,397]" captionStart="FIGURES 4671" captionStartId="7.[136,243,1854,1875]" captionTargetBox="[169,1426,207,1821]" captionTargetId="figure-14@7.[151,1436,190,1829]" captionTargetPageId="7" captionText="FIGURES 4671. Platessa guianensis sp. nov. from Rio Negro basin (Brazilian Amazon), LM and SEM. 4655: sternum valve. 5664: raphe sternum valve. 65, 67, 69, 71. External views. 66, 68, 70. Internal views. Note the internal row of tiny marginal poroids (Figs 66, 68, arrows) and grooves on the raphe branches (Fig. 67, arrow). 4668: Sample SP-400. 274, Rio Negro, Brazilian Amazon. 6971 Sample SP-400.315, Rio Negro, Brazilian Amazon." figureDoi="http://doi.org/10.5281/zenodo.13667190" httpUri="https://zenodo.org/record/13667190/files/figure.png" pageId="4" pageNumber="241">67</figureCitation>
arrows). Internally raphe branches with proximal endings deflected in opposite direction and distal endings slightly curved to opposite sides and terminating in poorly developed helictoglossae (
<figureCitation id="B9B52CE3FFD7810AFA5153B268CBFE53" captionStart="FIGURES 3842" captionStartId="5.[136,243,1808,1829]" captionTargetBox="[161,1426,209,1774]" captionTargetId="figure-14@5.[151,1436,190,1783]" captionTargetPageId="5" captionText="FIGURES 3842. Platessa guianensis sp. nov., type material from French Guiana SEM. 38. External view of the RSV showing the raphe sternum features, the biseriate striae, the concavity of the valve and the discontinuous row of elongated “poroids” on the mantle. 39. Detail of the proximal raphe ending surrounded by a groove (arrow). 40. Detail of the distal raphe ending with delta-shaped groove with angular outline (arrow) and discontinuity of the mantle “poroids”. 41. Internal view of the RSV showing the raphe sternum features with proximal raphe endings deflected in opposite directions, slightly deflected distal raphe endings, tiny helictoglossae. 42. Ultrastructural detail of the internal aperture of the areola (cribrum) and inner view of poroid (arrow)." figureDoi="http://doi.org/10.5281/zenodo.13667178" httpUri="https://zenodo.org/record/13667178/files/figure.png" pageId="4" pageNumber="241">Figs 41</figureCitation>
,
<figureCitation id="B9B52CE3FFD7810AFF3753EE68E3FE53" box="[228,255,448,469]" captionStart="FIGURES 4345" captionStartId="6.[136,243,1948,1969]" captionTargetBox="[207,1387,209,1913]" captionTargetId="figure-16@6.[190,1398,190,1923]" captionTargetPageId="6" captionText="FIGURES 4345. Platessa guianensis sp. nov., type material from French Guiana SEM. 43. External view of the SV with tiny depressions in the axial area, elongated poroids on the mantle located in a groove. Notches (arrows). 44. Complete frustule showing internal view of the RSV and internal view of the SV, the open copulae, the valvocopula and the notches (arrow). 45. Internal view of the SV with trace of vestigial raphe (arrow)." figureDoi="http://doi.org/10.5281/zenodo.13667184" httpUri="https://zenodo.org/record/13667184/files/figure.png" pageId="4" pageNumber="241">44</figureCitation>
). Central striae clearly sunken between raised virgae (
<figureCitation id="B9B52CE3FFD7810AFCCB53EE6B79FE53" box="[792,869,448,469]" captionStart="FIGURES 3842" captionStartId="5.[136,243,1808,1829]" captionTargetBox="[161,1426,209,1774]" captionTargetId="figure-14@5.[151,1436,190,1783]" captionTargetPageId="5" captionText="FIGURES 3842. Platessa guianensis sp. nov., type material from French Guiana SEM. 38. External view of the RSV showing the raphe sternum features, the biseriate striae, the concavity of the valve and the discontinuous row of elongated “poroids” on the mantle. 39. Detail of the proximal raphe ending surrounded by a groove (arrow). 40. Detail of the distal raphe ending with delta-shaped groove with angular outline (arrow) and discontinuity of the mantle “poroids”. 41. Internal view of the RSV showing the raphe sternum features with proximal raphe endings deflected in opposite directions, slightly deflected distal raphe endings, tiny helictoglossae. 42. Ultrastructural detail of the internal aperture of the areola (cribrum) and inner view of poroid (arrow)." figureDoi="http://doi.org/10.5281/zenodo.13667178" httpUri="https://zenodo.org/record/13667178/files/figure.png" pageId="4" pageNumber="241">Figs 41</figureCitation>
,
<figureCitation id="B9B52CE3FFD7810AFCA153EE6B91FE53" box="[882,909,448,469]" captionStart="FIGURES 4671" captionStartId="7.[136,243,1854,1875]" captionTargetBox="[169,1426,207,1821]" captionTargetId="figure-14@7.[151,1436,190,1829]" captionTargetPageId="7" captionText="FIGURES 4671. Platessa guianensis sp. nov. from Rio Negro basin (Brazilian Amazon), LM and SEM. 4655: sternum valve. 5664: raphe sternum valve. 65, 67, 69, 71. External views. 66, 68, 70. Internal views. Note the internal row of tiny marginal poroids (Figs 66, 68, arrows) and grooves on the raphe branches (Fig. 67, arrow). 4668: Sample SP-400. 274, Rio Negro, Brazilian Amazon. 6971 Sample SP-400.315, Rio Negro, Brazilian Amazon." figureDoi="http://doi.org/10.5281/zenodo.13667190" httpUri="https://zenodo.org/record/13667190/files/figure.png" pageId="4" pageNumber="241">68</figureCitation>
). A very shallow depression is observed on the central nodule between the proximal raphe endings (
<figureCitation id="B9B52CE3FFD7810AFDA853CA6AD4FE7F" box="[635,712,484,505]" captionStart="FIGURES 3842" captionStartId="5.[136,243,1808,1829]" captionTargetBox="[161,1426,209,1774]" captionTargetId="figure-14@5.[151,1436,190,1783]" captionTargetPageId="5" captionText="FIGURES 3842. Platessa guianensis sp. nov., type material from French Guiana SEM. 38. External view of the RSV showing the raphe sternum features, the biseriate striae, the concavity of the valve and the discontinuous row of elongated “poroids” on the mantle. 39. Detail of the proximal raphe ending surrounded by a groove (arrow). 40. Detail of the distal raphe ending with delta-shaped groove with angular outline (arrow) and discontinuity of the mantle “poroids”. 41. Internal view of the RSV showing the raphe sternum features with proximal raphe endings deflected in opposite directions, slightly deflected distal raphe endings, tiny helictoglossae. 42. Ultrastructural detail of the internal aperture of the areola (cribrum) and inner view of poroid (arrow)." figureDoi="http://doi.org/10.5281/zenodo.13667178" httpUri="https://zenodo.org/record/13667178/files/figure.png" pageId="4" pageNumber="241">Figs 41</figureCitation>
,
<figureCitation id="B9B52CE3FFD7810AFD0753CA6AF3FE7F" box="[724,751,484,505]" captionStart="FIGURES 4671" captionStartId="7.[136,243,1854,1875]" captionTargetBox="[169,1426,207,1821]" captionTargetId="figure-14@7.[151,1436,190,1829]" captionTargetPageId="7" captionText="FIGURES 4671. Platessa guianensis sp. nov. from Rio Negro basin (Brazilian Amazon), LM and SEM. 4655: sternum valve. 5664: raphe sternum valve. 65, 67, 69, 71. External views. 66, 68, 70. Internal views. Note the internal row of tiny marginal poroids (Figs 66, 68, arrows) and grooves on the raphe branches (Fig. 67, arrow). 4668: Sample SP-400. 274, Rio Negro, Brazilian Amazon. 6971 Sample SP-400.315, Rio Negro, Brazilian Amazon." figureDoi="http://doi.org/10.5281/zenodo.13667190" httpUri="https://zenodo.org/record/13667190/files/figure.png" pageId="4" pageNumber="241">68</figureCitation>
). SV slightly convex (
<figureCitation id="B9B52CE3FFD7810AFC1D53CA6C5EFE7F" box="[974,1090,484,505]" captionStart="FIGURES 4345" captionStartId="6.[136,243,1948,1969]" captionTargetBox="[207,1387,209,1913]" captionTargetId="figure-16@6.[190,1398,190,1923]" captionTargetPageId="6" captionText="FIGURES 4345. Platessa guianensis sp. nov., type material from French Guiana SEM. 43. External view of the SV with tiny depressions in the axial area, elongated poroids on the mantle located in a groove. Notches (arrows). 44. Complete frustule showing internal view of the RSV and internal view of the SV, the open copulae, the valvocopula and the notches (arrow). 45. Internal view of the SV with trace of vestigial raphe (arrow)." figureDoi="http://doi.org/10.5281/zenodo.13667184" httpUri="https://zenodo.org/record/13667184/files/figure.png" pageId="4" pageNumber="241">Figs 4344</figureCitation>
). Externally, axial area covered with numerous scattered depressions (around 0.5 μm diameter) irregularly distributed on the surface (
<figureCitation id="B9B52CE3FFD7810AFBA550266CF5FD9B" box="[1142,1257,520,541]" captionStart="FIGURES 4345" captionStartId="6.[136,243,1948,1969]" captionTargetBox="[207,1387,209,1913]" captionTargetId="figure-16@6.[190,1398,190,1923]" captionTargetPageId="6" captionText="FIGURES 4345. Platessa guianensis sp. nov., type material from French Guiana SEM. 43. External view of the SV with tiny depressions in the axial area, elongated poroids on the mantle located in a groove. Notches (arrows). 44. Complete frustule showing internal view of the RSV and internal view of the SV, the open copulae, the valvocopula and the notches (arrow). 45. Internal view of the SV with trace of vestigial raphe (arrow)." figureDoi="http://doi.org/10.5281/zenodo.13667184" httpUri="https://zenodo.org/record/13667184/files/figure.png" pageId="4" pageNumber="241">Figs 43, 44</figureCitation>
,
<figureCitation id="B9B52CE3FFD7810AFB2650266D2AFD9B" box="[1269,1334,520,541]" captionStart="FIGURES 4671" captionStartId="7.[136,243,1854,1875]" captionTargetBox="[169,1426,207,1821]" captionTargetId="figure-14@7.[151,1436,190,1829]" captionTargetPageId="7" captionText="FIGURES 4671. Platessa guianensis sp. nov. from Rio Negro basin (Brazilian Amazon), LM and SEM. 4655: sternum valve. 5664: raphe sternum valve. 65, 67, 69, 71. External views. 66, 68, 70. Internal views. Note the internal row of tiny marginal poroids (Figs 66, 68, arrows) and grooves on the raphe branches (Fig. 67, arrow). 4668: Sample SP-400. 274, Rio Negro, Brazilian Amazon. 6971 Sample SP-400.315, Rio Negro, Brazilian Amazon." figureDoi="http://doi.org/10.5281/zenodo.13667190" httpUri="https://zenodo.org/record/13667190/files/figure.png" pageId="4" pageNumber="241">65, 69</figureCitation>
). Internally, trace of vestigial raphe (
<figureCitation id="B9B52CE3FFD7810AFE7D500269EBFDC7" box="[430,503,556,577]" captionStart="FIGURES 4345" captionStartId="6.[136,243,1948,1969]" captionTargetBox="[207,1387,209,1913]" captionTargetId="figure-16@6.[190,1398,190,1923]" captionTargetPageId="6" captionText="FIGURES 4345. Platessa guianensis sp. nov., type material from French Guiana SEM. 43. External view of the SV with tiny depressions in the axial area, elongated poroids on the mantle located in a groove. Notches (arrows). 44. Complete frustule showing internal view of the RSV and internal view of the SV, the open copulae, the valvocopula and the notches (arrow). 45. Internal view of the SV with trace of vestigial raphe (arrow)." figureDoi="http://doi.org/10.5281/zenodo.13667184" httpUri="https://zenodo.org/record/13667184/files/figure.png" pageId="4" pageNumber="241">Fig. 45</figureCitation>
, arrow) generally present. On both valves, striae biseriate composed of offset areolae relative to each other and separated by a strongly silicified vimines (
<figureCitation id="B9B52CE3FFD7810AFD3A507E6B46FDE3" box="[745,858,592,613]" captionStart-0="FIGURES 3842" captionStart-1="FIGURES 4345" captionStartId-0="5.[136,243,1808,1829]" captionStartId-1="6.[136,243,1948,1969]" captionTargetBox-0="[161,1426,209,1774]" captionTargetBox-1="[207,1387,209,1913]" captionTargetId-0="figure-14@5.[151,1436,190,1783]" captionTargetId-1="figure-16@6.[190,1398,190,1923]" captionTargetPageId-0="5" captionTargetPageId-1="6" captionText-0="FIGURES 3842. Platessa guianensis sp. nov., type material from French Guiana SEM. 38. External view of the RSV showing the raphe sternum features, the biseriate striae, the concavity of the valve and the discontinuous row of elongated “poroids” on the mantle. 39. Detail of the proximal raphe ending surrounded by a groove (arrow). 40. Detail of the distal raphe ending with delta-shaped groove with angular outline (arrow) and discontinuity of the mantle “poroids”. 41. Internal view of the RSV showing the raphe sternum features with proximal raphe endings deflected in opposite directions, slightly deflected distal raphe endings, tiny helictoglossae. 42. Ultrastructural detail of the internal aperture of the areola (cribrum) and inner view of poroid (arrow)." captionText-1="FIGURES 4345. Platessa guianensis sp. nov., type material from French Guiana SEM. 43. External view of the SV with tiny depressions in the axial area, elongated poroids on the mantle located in a groove. Notches (arrows). 44. Complete frustule showing internal view of the RSV and internal view of the SV, the open copulae, the valvocopula and the notches (arrow). 45. Internal view of the SV with trace of vestigial raphe (arrow)." figureDoi-0="http://doi.org/10.5281/zenodo.13667178" figureDoi-1="http://doi.org/10.5281/zenodo.13667184" httpUri-0="https://zenodo.org/record/13667178/files/figure.png" httpUri-1="https://zenodo.org/record/13667184/files/figure.png" pageId="4" pageNumber="241">Figs 3845</figureCitation>
,
<figureCitation id="B9B52CE3FFD7810AFCB7507E6BB9FDE3" box="[868,933,592,613]" captionStart="FIGURES 4671" captionStartId="7.[136,243,1854,1875]" captionTargetBox="[169,1426,207,1821]" captionTargetId="figure-14@7.[151,1436,190,1829]" captionTargetPageId="7" captionText="FIGURES 4671. Platessa guianensis sp. nov. from Rio Negro basin (Brazilian Amazon), LM and SEM. 4655: sternum valve. 5664: raphe sternum valve. 65, 67, 69, 71. External views. 66, 68, 70. Internal views. Note the internal row of tiny marginal poroids (Figs 66, 68, arrows) and grooves on the raphe branches (Fig. 67, arrow). 4668: Sample SP-400. 274, Rio Negro, Brazilian Amazon. 6971 Sample SP-400.315, Rio Negro, Brazilian Amazon." figureDoi="http://doi.org/10.5281/zenodo.13667190" httpUri="https://zenodo.org/record/13667190/files/figure.png" pageId="4" pageNumber="241">6571</figureCitation>
). Internally, areolae occluded by a cribrum perforated by delicate slits (
<figureCitation id="B9B52CE3FFD7810AFEB0505A69B2FD0F" box="[355,430,628,649]" captionStart="FIGURES 3842" captionStartId="5.[136,243,1808,1829]" captionTargetBox="[161,1426,209,1774]" captionTargetId="figure-14@5.[151,1436,190,1783]" captionTargetPageId="5" captionText="FIGURES 3842. Platessa guianensis sp. nov., type material from French Guiana SEM. 38. External view of the RSV showing the raphe sternum features, the biseriate striae, the concavity of the valve and the discontinuous row of elongated “poroids” on the mantle. 39. Detail of the proximal raphe ending surrounded by a groove (arrow). 40. Detail of the distal raphe ending with delta-shaped groove with angular outline (arrow) and discontinuity of the mantle “poroids”. 41. Internal view of the RSV showing the raphe sternum features with proximal raphe endings deflected in opposite directions, slightly deflected distal raphe endings, tiny helictoglossae. 42. Ultrastructural detail of the internal aperture of the areola (cribrum) and inner view of poroid (arrow)." figureDoi="http://doi.org/10.5281/zenodo.13667178" httpUri="https://zenodo.org/record/13667178/files/figure.png" pageId="4" pageNumber="241">Fig. 42</figureCitation>
). Externally, on both valves, narrow hyaline area all around the valve separating the biseriate striae from elongated “poroids” located in a continuous groove on the mantle (
<figureCitation id="B9B52CE3FFD7810AFCE850B66B99FD2B" box="[827,901,664,685]" captionStart="FIGURES 3842" captionStartId="5.[136,243,1808,1829]" captionTargetBox="[161,1426,209,1774]" captionTargetId="figure-14@5.[151,1436,190,1783]" captionTargetPageId="5" captionText="FIGURES 3842. Platessa guianensis sp. nov., type material from French Guiana SEM. 38. External view of the RSV showing the raphe sternum features, the biseriate striae, the concavity of the valve and the discontinuous row of elongated “poroids” on the mantle. 39. Detail of the proximal raphe ending surrounded by a groove (arrow). 40. Detail of the distal raphe ending with delta-shaped groove with angular outline (arrow) and discontinuity of the mantle “poroids”. 41. Internal view of the RSV showing the raphe sternum features with proximal raphe endings deflected in opposite directions, slightly deflected distal raphe endings, tiny helictoglossae. 42. Ultrastructural detail of the internal aperture of the areola (cribrum) and inner view of poroid (arrow)." figureDoi="http://doi.org/10.5281/zenodo.13667178" httpUri="https://zenodo.org/record/13667178/files/figure.png" pageId="4" pageNumber="241">Figs 38</figureCitation>
,
<figureCitation id="B9B52CE3FFD7810AFC5D50B66BD1FD2B" box="[910,973,664,685]" captionStart="FIGURES 4345" captionStartId="6.[136,243,1948,1969]" captionTargetBox="[207,1387,209,1913]" captionTargetId="figure-16@6.[190,1398,190,1923]" captionTargetPageId="6" captionText="FIGURES 4345. Platessa guianensis sp. nov., type material from French Guiana SEM. 43. External view of the SV with tiny depressions in the axial area, elongated poroids on the mantle located in a groove. Notches (arrows). 44. Complete frustule showing internal view of the RSV and internal view of the SV, the open copulae, the valvocopula and the notches (arrow). 45. Internal view of the SV with trace of vestigial raphe (arrow)." figureDoi="http://doi.org/10.5281/zenodo.13667184" httpUri="https://zenodo.org/record/13667184/files/figure.png" pageId="4" pageNumber="241">43, 44</figureCitation>
), which can be inconspicuous or irregular in some specimens (
<figureCitation id="B9B52CE3FFD7810AFEFC50926981FD57" box="[303,413,700,721]" captionStart="FIGURES 4671" captionStartId="7.[136,243,1854,1875]" captionTargetBox="[169,1426,207,1821]" captionTargetId="figure-14@7.[151,1436,190,1829]" captionTargetPageId="7" captionText="FIGURES 4671. Platessa guianensis sp. nov. from Rio Negro basin (Brazilian Amazon), LM and SEM. 4655: sternum valve. 5664: raphe sternum valve. 65, 67, 69, 71. External views. 66, 68, 70. Internal views. Note the internal row of tiny marginal poroids (Figs 66, 68, arrows) and grooves on the raphe branches (Fig. 67, arrow). 4668: Sample SP-400. 274, Rio Negro, Brazilian Amazon. 6971 Sample SP-400.315, Rio Negro, Brazilian Amazon." figureDoi="http://doi.org/10.5281/zenodo.13667190" httpUri="https://zenodo.org/record/13667190/files/figure.png" pageId="4" pageNumber="241">Figs 65, 68</figureCitation>
arrows). External “poroids” continuous on SV (
<figureCitation id="B9B52CE3FFD7810AFCA350926BFDFD57" box="[880,993,700,721]" captionStart="FIGURES 4345" captionStartId="6.[136,243,1948,1969]" captionTargetBox="[207,1387,209,1913]" captionTargetId="figure-16@6.[190,1398,190,1923]" captionTargetPageId="6" captionText="FIGURES 4345. Platessa guianensis sp. nov., type material from French Guiana SEM. 43. External view of the SV with tiny depressions in the axial area, elongated poroids on the mantle located in a groove. Notches (arrows). 44. Complete frustule showing internal view of the RSV and internal view of the SV, the open copulae, the valvocopula and the notches (arrow). 45. Internal view of the SV with trace of vestigial raphe (arrow)." figureDoi="http://doi.org/10.5281/zenodo.13667184" httpUri="https://zenodo.org/record/13667184/files/figure.png" pageId="4" pageNumber="241">Figs 43, 44</figureCitation>
), discontinuous in the RSV (missing poroids at the apices,
<figureCitation id="B9B52CE3FFD7810AFEF950CE6987FD73" box="[298,411,736,757]" captionStart="FIGURES 3842" captionStartId="5.[136,243,1808,1829]" captionTargetBox="[161,1426,209,1774]" captionTargetId="figure-14@5.[151,1436,190,1783]" captionTargetPageId="5" captionText="FIGURES 3842. Platessa guianensis sp. nov., type material from French Guiana SEM. 38. External view of the RSV showing the raphe sternum features, the biseriate striae, the concavity of the valve and the discontinuous row of elongated “poroids” on the mantle. 39. Detail of the proximal raphe ending surrounded by a groove (arrow). 40. Detail of the distal raphe ending with delta-shaped groove with angular outline (arrow) and discontinuity of the mantle “poroids”. 41. Internal view of the RSV showing the raphe sternum features with proximal raphe endings deflected in opposite directions, slightly deflected distal raphe endings, tiny helictoglossae. 42. Ultrastructural detail of the internal aperture of the areola (cribrum) and inner view of poroid (arrow)." figureDoi="http://doi.org/10.5281/zenodo.13667178" httpUri="https://zenodo.org/record/13667178/files/figure.png" pageId="4" pageNumber="241">Figs 38, 40</figureCitation>
). Internally, at the marginal end of each striae, presence of a very tiny “outgrowth” surrounded by a groove and structurally different from the areolae (
<figureCitation id="B9B52CE3FFD7810AFD8F512A6ABFFC9F" box="[604,675,772,793]" captionStart="FIGURES 3842" captionStartId="5.[136,243,1808,1829]" captionTargetBox="[161,1426,209,1774]" captionTargetId="figure-14@5.[151,1436,190,1783]" captionTargetPageId="5" captionText="FIGURES 3842. Platessa guianensis sp. nov., type material from French Guiana SEM. 38. External view of the RSV showing the raphe sternum features, the biseriate striae, the concavity of the valve and the discontinuous row of elongated “poroids” on the mantle. 39. Detail of the proximal raphe ending surrounded by a groove (arrow). 40. Detail of the distal raphe ending with delta-shaped groove with angular outline (arrow) and discontinuity of the mantle “poroids”. 41. Internal view of the RSV showing the raphe sternum features with proximal raphe endings deflected in opposite directions, slightly deflected distal raphe endings, tiny helictoglossae. 42. Ultrastructural detail of the internal aperture of the areola (cribrum) and inner view of poroid (arrow)." figureDoi="http://doi.org/10.5281/zenodo.13667178" httpUri="https://zenodo.org/record/13667178/files/figure.png" pageId="4" pageNumber="241">Fig. 42</figureCitation>
, arrow). Notches present on both valves (
<figureCitation id="B9B52CE3FFD7810AFBE2512A6C60FC9F" box="[1073,1148,772,793]" captionStart="FIGURES 3842" captionStartId="5.[136,243,1808,1829]" captionTargetBox="[161,1426,209,1774]" captionTargetId="figure-14@5.[151,1436,190,1783]" captionTargetPageId="5" captionText="FIGURES 3842. Platessa guianensis sp. nov., type material from French Guiana SEM. 38. External view of the RSV showing the raphe sternum features, the biseriate striae, the concavity of the valve and the discontinuous row of elongated “poroids” on the mantle. 39. Detail of the proximal raphe ending surrounded by a groove (arrow). 40. Detail of the distal raphe ending with delta-shaped groove with angular outline (arrow) and discontinuity of the mantle “poroids”. 41. Internal view of the RSV showing the raphe sternum features with proximal raphe endings deflected in opposite directions, slightly deflected distal raphe endings, tiny helictoglossae. 42. Ultrastructural detail of the internal aperture of the areola (cribrum) and inner view of poroid (arrow)." figureDoi="http://doi.org/10.5281/zenodo.13667178" httpUri="https://zenodo.org/record/13667178/files/figure.png" pageId="4" pageNumber="241">Figs 41</figureCitation>
,
<figureCitation id="B9B52CE3FFD7810AFB55512A6CD8FC9F" box="[1158,1220,772,793]" captionStart="FIGURES 4345" captionStartId="6.[136,243,1948,1969]" captionTargetBox="[207,1387,209,1913]" captionTargetId="figure-16@6.[190,1398,190,1923]" captionTargetPageId="6" captionText="FIGURES 4345. Platessa guianensis sp. nov., type material from French Guiana SEM. 43. External view of the SV with tiny depressions in the axial area, elongated poroids on the mantle located in a groove. Notches (arrows). 44. Complete frustule showing internal view of the RSV and internal view of the SV, the open copulae, the valvocopula and the notches (arrow). 45. Internal view of the SV with trace of vestigial raphe (arrow)." figureDoi="http://doi.org/10.5281/zenodo.13667184" httpUri="https://zenodo.org/record/13667184/files/figure.png" pageId="4" pageNumber="241">43, 44</figureCitation>
, arrows).
</paragraph>
</subSubSection>
<subSubSection id="699463EDFFD7810AFF5B51066C4CF89C" pageId="4" pageNumber="241" type="materials_examined">
<paragraph id="21313066FFD7810AFF5B51066CF8FC03" blockId="4.[136,1452,160,901]" pageId="4" pageNumber="241">
<emphasis id="13FAEC74FFD7810AFF5B510668DEFCBB" bold="true" box="[136,194,808,829]" pageId="4" pageNumber="241">Type:</emphasis>
<materialsCitation id="91E63A3BFFD7810AFF0951066C92FC03" collectingDate="2011-11" collectionCode="ANSP" country="French Guiana" county="Academy of Natural Sciences" latitude="3.572" location="River Nouvelle-France" longLatPrecision="78" longitude="-53.201" municipality="France" pageId="4" pageNumber="241" specimenCode="GC 26825, GCM 10311" specimenCount="2" typeStatus="holotype">
<collectingCountry id="599970F6FFD7810AFF09510669BFFCBB" box="[218,419,808,829]" name="French Guiana" pageId="4" pageNumber="241">FRENCH GUIANA</collectingCountry>
.
<location id="245166BDFFD7810AFE7D51066A8DFCBB" LSID="urn:lsid:plazi:treatment:A9278170FFD08106FF5B55496C6DFE7B:245166BDFFD7810AFE7D51066A8DFCBB" box="[430,657,808,829]" country="French Guiana" county="Academy of Natural Sciences" latitude="3.572" longLatPrecision="78" longitude="-53.201" municipality="France" name="River Nouvelle-France" pageId="4" pageNumber="241">River Nouvelle-France</location>
: municipality of
<location id="245166BDFFD7810AFCE851066B74FCBB" LSID="urn:lsid:plazi:treatment:A9278170FFD08106FF5B55496C6DFE7B:245166BDFFD7810AFCE851066B74FCBB" box="[827,872,808,829]" country="French Guiana" county="Academy of Natural Sciences" latitude="3.572" longLatPrecision="78" longitude="-53.201" municipality="France" name="Saul" pageId="4" pageNumber="241">Saül</location>
,
<geoCoordinate id="44BA56A1FFD7810AFCA751066BD3FCBB" box="[884,975,808,829]" degrees="3.572" direction="north" orientation="latitude" pageId="4" pageNumber="241" precision="55" value="3.572">3.572° N</geoCoordinate>
,
<geoCoordinate id="44BA56A1FFD7810AFC0F51066C5AFCBB" box="[988,1094,808,829]" degrees="53.201" direction="west" orientation="longitude" pageId="4" pageNumber="241" precision="55" value="-53.201">53.201° W</geoCoordinate>
, benthic periphyton,
<emphasis id="13FAEC74FFD7810AFACB5106694FFCE7" italics="true" pageId="4" pageNumber="241">
<location id="245166BDFFD7810AFACB51066DB4FCBB" LSID="urn:lsid:plazi:treatment:A9278170FFD08106FF5B55496C6DFE7B:245166BDFFD7810AFACB51066DB4FCBB" box="[1304,1448,808,829]" country="French Guiana" county="Academy of Natural Sciences" latitude="3.572" longLatPrecision="78" longitude="-53.201" municipality="France" name="Loic Tudesque" pageId="4" pageNumber="241">Loïc Tudesque</location>
,
<date id="553016A6FFD7810AFF6E5162694FFCE7" box="[189,339,844,865]" pageId="4" pageNumber="241" value="2011-11">
<collectingDate id="4574EF4EFFD7810AFF6E5162694FFCE7" box="[189,339,844,865]" pageId="4" pageNumber="241" value="2011-11">November 2011</collectingDate>
</date>
</emphasis>
(
<typeStatus id="FE358EC4FFD7810AFEB3516269A5FCE7" box="[352,441,844,865]" pageId="4" pageNumber="241" type="holotype">holotype</typeStatus>
: PC! 00145186,
<location id="245166BDFFD7810AFD8451626C00FCE7" LSID="urn:lsid:plazi:treatment:A9278170FFD08106FF5B55496C6DFE7B:245166BDFFD7810AFD8451626C00FCE7" box="[599,1052,844,865]" country="French Guiana" county="Academy of Natural Sciences" latitude="3.572" longLatPrecision="78" longitude="-53.201" municipality="France" name="Museum National d'Histoire Naturelle de Paris" pageId="4" pageNumber="241">Muséum National dHistoire Naturelle de Paris</location>
,
<location id="245166BDFFD7810AFBF651626C4BFCE7" LSID="urn:lsid:plazi:treatment:A9278170FFD08106FF5B55496C6DFE7B:245166BDFFD7810AFBF651626C4BFCE7" box="[1061,1111,844,865]" country="French Guiana" county="Academy of Natural Sciences" latitude="3.572" longLatPrecision="78" longitude="-53.201" municipality="France" name="Paris" pageId="4" pageNumber="241">Paris</location>
,
<collectingMunicipality id="C155AA1CFFD7810AFBB251626CB9FCE7" box="[1121,1189,844,865]" pageId="4" pageNumber="241">France</collectingMunicipality>
;
<typeStatus id="FE358EC4FFD7810AFB7D51626CEBFCE7" box="[1198,1271,844,865]" pageId="4" pageNumber="241" type="isotype">isotype</typeStatus>
:
<collectionCode id="479FA8A3FFD7810AFB2D51626D5CFCE7" box="[1278,1344,844,865]" 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="4" pageNumber="241">ANSP</collectionCode>
!
<specimenCode id="7128981DFFD7810AFA9A51626DB7FCE7" box="[1353,1451,844,865]" collectionCode="GC" country="0" name="Goucher College" pageId="4" pageNumber="241">GC 26825</specimenCode>
and raw material
<specimenCode id="7128981DFFD7810AFEB6515E69C2FC03" box="[357,478,880,901]" collectionCode="GCM" country="Pakistan" httpUri="http://grbio.org/cool/6cg4-m6r9" name="Government College, Department of Zoology" pageId="4" pageNumber="241">GCM 10311</specimenCode>
, the algae collection of the
<collectingCounty id="C85048EAFFD7810AFD36515E6C19FC03" box="[741,1029,880,901]" pageId="4" pageNumber="241">Academy of Natural Sciences</collectingCounty>
, Philadelphia,
</materialsCitation>
<collectingCountry id="599970F6FFD7810AFB40515E6CC4FC03" box="[1171,1240,880,901]" name="United States of America" pageId="4" pageNumber="241">U.S.A.</collectingCountry>
).
</paragraph>
<caption id="75F160EEFFD7810AFF5B54B66A5DF957" ID-DOI="http://doi.org/10.5281/zenodo.13667174" ID-Zenodo-Dep="13667174" httpUri="https://zenodo.org/record/13667174/files/figure.png" pageId="4" pageNumber="241" startId="4.[136,243,1688,1709]" targetBox="[166,1424,941,1647]" targetPageId="4" targetType="figure">
<paragraph id="21313066FFD7810AFF5B54B66A5DF957" blockId="4.[136,1452,1688,1745]" pageId="4" pageNumber="241">
<emphasis id="13FAEC74FFD7810AFF5B54B66932F92B" bold="true" box="[136,302,1688,1709]" pageId="4" pageNumber="241">FIGURES 237.</emphasis>
<taxonomicName id="E68E4BE5FFD7810AFEE054B669EDF92B" authorityName="Tudesque &amp; Cohu &amp; Wetzel" authorityYear="2016" box="[307,497,1688,1709]" class="Bacillariophyceae" family="Achnanthaceae" genus="Platessa" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="4" pageNumber="241" phylum="Bacillariophyta" rank="species" species="guianensis" status="sp. nov.">
<emphasis id="13FAEC74FFD7810AFEE054B669EDF92B" box="[307,497,1688,1709]" italics="true" pageId="4" pageNumber="241">Platessa guianensis</emphasis>
</taxonomicName>
<taxonomicNameLabel id="08C9510FFFD7810AFE2654B66A21F92B" box="[501,573,1688,1709]" pageId="4" pageNumber="241" rank="species">
<emphasis id="13FAEC74FFD7810AFE2654B66A16F92B" box="[501,522,1688,1709]" italics="true" pageId="4" pageNumber="241">sp</emphasis>
.
<emphasis id="13FAEC74FFD7810AFDC554B66A25F92B" box="[534,569,1688,1709]" italics="true" pageId="4" pageNumber="241">nov</emphasis>
.
</taxonomicNameLabel>
, type material from French Guiana, LM, range of size. 213, 14a25a. Raphe sternum valve (RSV). 14b25b, 2637. Sternum valve (SV).
</paragraph>
</caption>
<paragraph id="21313066FFD7810AFF5B552F6C4CF89C" blockId="4.[136,1452,1793,2070]" box="[136,1104,1793,1818]" pageId="4" pageNumber="241">
<emphasis id="13FAEC74FFD7810AFF5B552F68F8F89C" bold="true" box="[136,228,1793,1818]" pageId="4" pageNumber="241">Habitat</emphasis>
:—freshwater periphyton from tropical and subtropical moist broadleaf forest.
</paragraph>
</subSubSection>
<subSubSection id="699463EDFFD7810AFF6E550B6CFFF790" pageId="4" pageNumber="241" type="etymology">
<paragraph id="21313066FFD7810AFF6E550B6C1CF8B8" blockId="4.[136,1452,1793,2070]" box="[189,1024,1829,1854]" pageId="4" pageNumber="241">
<emphasis id="13FAEC74FFD7810AFF6E550B6922F8B8" bold="true" box="[189,318,1829,1854]" pageId="4" pageNumber="241">Etymology</emphasis>
:—in reference to the location where this species was sampled.
</paragraph>
<paragraph id="21313066FFD7810AFF6E55676CFFF790" blockId="4.[136,1452,1793,2070]" pageId="4" pageNumber="241">
<emphasis id="13FAEC74FFD7810AFF6E55676929F8E4" bold="true" box="[189,309,1865,1890]" pageId="4" pageNumber="241">
<typeStatus id="FE358EC4FFD7810AFF6E55676929F8E4" box="[189,309,1865,1890]" pageId="4" pageNumber="241" type="paratype">Paratypes</typeStatus>
</emphasis>
:—
<collectingCountry id="599970F6FFD7810AFE84556769DEF8E4" box="[343,450,1865,1890]" name="Brazil" pageId="4" pageNumber="241">BRAZIL</collectingCountry>
.
<collectingRegion id="E34AFE84FFD7810AFE1E55676A54F8E4" box="[461,584,1865,1890]" country="Brazil" name="Amazonas" pageId="4" pageNumber="241">Amazonas</collectingRegion>
: Barcelos Municipality, Quimicuri river (igapó), a tributary from the right bank of the Rio Negro hydrographical basin (
<geoCoordinate id="44BA56A1FFD7810AFD5B55436AE6F800" box="[648,762,1901,1926]" degrees="0.6935" direction="south" orientation="latitude" pageId="4" pageNumber="241" precision="5" value="-0.6935">0.6935° S</geoCoordinate>
,
<geoCoordinate id="44BA56A1FFD7810AFCD455436BBDF800" box="[775,929,1901,1926]" degrees="63.20964" direction="west" orientation="longitude" pageId="4" pageNumber="241" precision="1" value="-63.20964">63.20964° W</geoCoordinate>
), phytoplankton sample,
<emphasis id="13FAEC74FFD7810AFB6F55436CD3F800" box="[1212,1231,1901,1926]" italics="true" pageId="4" pageNumber="241">C</emphasis>
.
<emphasis id="13FAEC74FFD7810AFB0555436CFBF800" box="[1238,1255,1901,1926]" italics="true" pageId="4" pageNumber="241">E</emphasis>
.
<emphasis id="13FAEC74FFD7810AFB2555436D22F800" box="[1270,1342,1901,1926]" italics="true" pageId="4" pageNumber="241">Wetzel</emphasis>
,
<emphasis id="13FAEC74FFD7810AFA9F554368DCF82C" italics="true" pageId="4" pageNumber="241">
<date id="553016A6FFD7810AFA9F554368DCF82C" pageId="4" pageNumber="241" value="2005-03-02">2 March 2005</date>
</emphasis>
(
<figureCitation id="B9B52CE3FFD7810AFF1D55BF694DF82C" box="[206,337,1937,1962]" captionStart="FIGURES 4671" captionStartId="7.[136,243,1854,1875]" captionTargetBox="[169,1426,207,1821]" captionTargetId="figure-14@7.[151,1436,190,1829]" captionTargetPageId="7" captionText="FIGURES 4671. Platessa guianensis sp. nov. from Rio Negro basin (Brazilian Amazon), LM and SEM. 4655: sternum valve. 5664: raphe sternum valve. 65, 67, 69, 71. External views. 66, 68, 70. Internal views. Note the internal row of tiny marginal poroids (Figs 66, 68, arrows) and grooves on the raphe branches (Fig. 67, arrow). 4668: Sample SP-400. 274, Rio Negro, Brazilian Amazon. 6971 Sample SP-400.315, Rio Negro, Brazilian Amazon." figureDoi="http://doi.org/10.5281/zenodo.13667190" httpUri="https://zenodo.org/record/13667190/files/figure.png" pageId="4" pageNumber="241">Figs 4668</figureCitation>
). Sample (SP-400.274) deposited at the herbarium from the Instituto de Botânica de
<collectingRegion id="E34AFE84FFD7810AFB2755BF6D78F82C" box="[1268,1380,1937,1962]" country="Brazil" name="Sao Paulo" pageId="4" pageNumber="241">São Paulo</collectingRegion>
(SP!).
<collectingCountry id="599970F6FFD7810AFF5B559B68EDF848" box="[136,241,1973,1998]" name="Brazil" pageId="4" pageNumber="241">BRAZIL</collectingCountry>
.
<collectingRegion id="E34AFE84FFD7810AFF2F559B696BF848" box="[252,375,1973,1998]" country="Brazil" name="Amazonas" pageId="4" pageNumber="241">Amazonas</collectingRegion>
: Barcelos Municipality, small name-less river (igapó), from the right bank of the Rio Negro hydrographical basin (
<geoCoordinate id="44BA56A1FFD7810AFE5155F76A13F874" box="[386,527,2009,2034]" degrees="0.488409" direction="south" orientation="latitude" pageId="4" pageNumber="241" precision="1" value="-0.488409">0.488409° S</geoCoordinate>
,
<geoCoordinate id="44BA56A1FFD7810AFDC855F76ADEF874" box="[539,706,2009,2034]" degrees="64.612874" direction="west" orientation="longitude" pageId="4" pageNumber="241" precision="1" value="-64.61288">64.612874° W</geoCoordinate>
), phytoplankton sample,
<emphasis id="13FAEC74FFD7810AFC0955F76BF1F874" box="[986,1005,2009,2034]" italics="true" pageId="4" pageNumber="241">C</emphasis>
.
<emphasis id="13FAEC74FFD7810AFC2755F76C19F874" box="[1012,1029,2009,2034]" italics="true" pageId="4" pageNumber="241">E</emphasis>
.
<emphasis id="13FAEC74FFD7810AFBC055F76C47F874" box="[1043,1115,2009,2034]" italics="true" pageId="4" pageNumber="241">Wetzel</emphasis>
,
<emphasis id="13FAEC74FFD7810AFBBB55F76D19F874" box="[1128,1285,2009,2034]" italics="true" pageId="4" pageNumber="241">
<date id="553016A6FFD7810AFBBB55F76D19F874" box="[1128,1285,2009,2034]" pageId="4" pageNumber="241" value="2005-03-04">4 March 2005</date>
</emphasis>
. (
<figureCitation id="B9B52CE3FFD7810AFAC855F76D82F874" box="[1307,1438,2009,2034]" captionStart="FIGURES 4671" captionStartId="7.[136,243,1854,1875]" captionTargetBox="[169,1426,207,1821]" captionTargetId="figure-14@7.[151,1436,190,1829]" captionTargetPageId="7" captionText="FIGURES 4671. Platessa guianensis sp. nov. from Rio Negro basin (Brazilian Amazon), LM and SEM. 4655: sternum valve. 5664: raphe sternum valve. 65, 67, 69, 71. External views. 66, 68, 70. Internal views. Note the internal row of tiny marginal poroids (Figs 66, 68, arrows) and grooves on the raphe branches (Fig. 67, arrow). 4668: Sample SP-400. 274, Rio Negro, Brazilian Amazon. 6971 Sample SP-400.315, Rio Negro, Brazilian Amazon." figureDoi="http://doi.org/10.5281/zenodo.13667190" httpUri="https://zenodo.org/record/13667190/files/figure.png" pageId="4" pageNumber="241">Figs 6971</figureCitation>
). Sample (SP-400.315) deposited at the herbarium from the Instituto de Botânica de
<collectingRegion id="E34AFE84FFD7810AFBF955D36C87F790" box="[1066,1179,2045,2070]" country="Brazil" name="Sao Paulo" pageId="4" pageNumber="241">São Paulo</collectingRegion>
(SP!).
</paragraph>
</subSubSection>
<caption id="75F160EEFFD6810BFF5B553E6B52F85F" ID-DOI="http://doi.org/10.5281/zenodo.13667178" ID-Zenodo-Dep="13667178" httpUri="https://zenodo.org/record/13667178/files/figure.png" pageId="5" pageNumber="242" startId="5.[136,243,1808,1829]" targetBox="[161,1426,209,1774]" targetPageId="5" targetType="figure">
<paragraph id="21313066FFD6810BFF5B553E6B52F85F" blockId="5.[136,1452,1808,2009]" pageId="5" pageNumber="242">
<emphasis id="13FAEC74FFD6810BFF5B553E6926F8A3" bold="true" box="[136,314,1808,1829]" pageId="5" pageNumber="242">FIGURES 3842.</emphasis>
<taxonomicName id="E68E4BE5FFD6810BFE93553E69E1F8A3" authorityName="Tudesque &amp; Cohu &amp; Wetzel" authorityYear="2016" box="[320,509,1808,1829]" class="Bacillariophyceae" family="Achnanthaceae" genus="Platessa" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="5" pageNumber="242" phylum="Bacillariophyta" rank="species" species="guianensis" status="sp. nov.">
<emphasis id="13FAEC74FFD6810BFE93553E69E1F8A3" box="[320,509,1808,1829]" italics="true" pageId="5" pageNumber="242">Platessa guianensis</emphasis>
</taxonomicName>
<taxonomicNameLabel id="08C9510FFFD6810BFDD0553E6A57F8A3" box="[515,587,1808,1829]" pageId="5" pageNumber="242" rank="species">
<emphasis id="13FAEC74FFD6810BFDD0553E6A04F8A3" box="[515,536,1808,1829]" italics="true" pageId="5" pageNumber="242">sp</emphasis>
.
<emphasis id="13FAEC74FFD6810BFDF0553E6A5AF8A3" box="[547,582,1808,1829]" italics="true" pageId="5" pageNumber="242">nov</emphasis>
.
</taxonomicNameLabel>
, type material from French Guiana SEM. 38. External view of the RSV showing the raphe sternum features, the biseriate striae, the concavity of the valve and the discontinuous row of elongated “poroids” on the mantle. 39. Detail of the proximal raphe ending surrounded by a groove (arrow). 40. Detail of the distal raphe ending with delta-shaped groove with angular outline (arrow) and discontinuity of the mantle “poroids”. 41. Internal view of the RSV showing the raphe sternum features with proximal raphe endings deflected in opposite directions, slightly deflected distal raphe endings, tiny helictoglossae. 42. Ultrastructural detail of the internal aperture of the areola (cribrum) and inner view of poroid (arrow).
</paragraph>
</caption>
<caption id="75F160EEFFD58108FF5B55B26976F79B" ID-DOI="http://doi.org/10.5281/zenodo.13667184" ID-Zenodo-Dep="13667184" httpUri="https://zenodo.org/record/13667184/files/figure.png" pageId="6" pageNumber="243" startId="6.[136,243,1948,1969]" targetBox="[207,1387,209,1913]" targetPageId="6" targetType="figure">
<paragraph id="21313066FFD58108FF5B55B26976F79B" blockId="6.[136,1451,1948,2077]" pageId="6" pageNumber="243">
<emphasis id="13FAEC74FFD58108FF5B55B26925F837" bold="true" box="[136,313,1948,1969]" pageId="6" pageNumber="243">FIGURES 4345.</emphasis>
<taxonomicName id="E68E4BE5FFD58108FEED55B269E0F837" authorityName="Tudesque &amp; Cohu &amp; Wetzel" authorityYear="2016" box="[318,508,1948,1969]" class="Bacillariophyceae" family="Achnanthaceae" genus="Platessa" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="6" pageNumber="243" phylum="Bacillariophyta" rank="species" species="guianensis" status="sp. nov.">
<emphasis id="13FAEC74FFD58108FEED55B269E0F837" box="[318,508,1948,1969]" italics="true" pageId="6" pageNumber="243">Platessa guianensis</emphasis>
</taxonomicName>
<taxonomicNameLabel id="08C9510FFFD58108FDD355B26A54F837" box="[512,584,1948,1969]" pageId="6" pageNumber="243" rank="species">
<emphasis id="13FAEC74FFD58108FDD355B26A09F837" box="[512,533,1948,1969]" italics="true" pageId="6" pageNumber="243">sp</emphasis>
.
<emphasis id="13FAEC74FFD58108FDF355B26A5FF837" box="[544,579,1948,1969]" italics="true" pageId="6" pageNumber="243">nov</emphasis>
.
</taxonomicNameLabel>
, type material from French Guiana SEM. 43. External view of the SV with tiny depressions in the axial area, elongated poroids on the mantle located in a groove. Notches (arrows). 44. Complete frustule showing internal view of the RSV and internal view of the SV, the open copulae, the valvocopula and the notches (arrow). 45. Internal view of the SV with trace of vestigial raphe (arrow).
</paragraph>
</caption>
<caption id="75F160EEFFD48109FF5B55106A37F839" ID-DOI="http://doi.org/10.5281/zenodo.13667190" ID-Zenodo-Dep="13667190" httpUri="https://zenodo.org/record/13667190/files/figure.png" pageId="7" pageNumber="244" startId="7.[136,243,1854,1875]" targetBox="[169,1426,207,1821]" targetPageId="7" targetType="figure">
<paragraph id="21313066FFD48109FF5B55106A37F839" blockId="7.[136,1452,1854,1983]" pageId="7" pageNumber="244">
<emphasis id="13FAEC74FFD48109FF5B55106927F8D5" bold="true" box="[136,315,1854,1875]" pageId="7" pageNumber="244">FIGURES 4671.</emphasis>
<taxonomicName id="E68E4BE5FFD48109FE9255106A1CF8D5" authorityName="Tudesque &amp; Cohu &amp; Wetzel" authorityYear="2016" box="[321,512,1854,1875]" class="Bacillariophyceae" family="Achnanthaceae" genus="Platessa" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="7" pageNumber="244" phylum="Bacillariophyta" rank="species" species="guianensis" status="sp. nov.">
<emphasis id="13FAEC74FFD48109FE9255106A1CF8D5" box="[321,512,1854,1875]" italics="true" pageId="7" pageNumber="244">Platessa guianensis</emphasis>
</taxonomicName>
<taxonomicNameLabel id="08C9510FFFD48109FDD555106A4CF8D5" box="[518,592,1854,1875]" pageId="7" pageNumber="244" rank="species">
<emphasis id="13FAEC74FFD48109FDD555106A07F8D5" box="[518,539,1854,1875]" italics="true" pageId="7" pageNumber="244">sp</emphasis>
.
<emphasis id="13FAEC74FFD48109FDFB55106A57F8D5" box="[552,587,1854,1875]" italics="true" pageId="7" pageNumber="244">nov</emphasis>
.
</taxonomicNameLabel>
from Rio Negro basin (Brazilian Amazon), LM and SEM. 4655: sternum valve. 5664: raphe sternum valve. 65, 67, 69, 71. External views. 66, 68, 70. Internal views. Note the internal row of tiny marginal poroids (Figs 66, 68, arrows) and grooves on the raphe branches (Fig. 67, arrow). 4668: Sample SP-400. 274, Rio Negro, Brazilian Amazon. 6971 Sample SP-400.315, Rio Negro, Brazilian Amazon.
</paragraph>
</caption>
<subSubSection id="699463EDFFD48106FF6E55C16C6DFE7B" lastPageId="8" lastPageNumber="245" pageId="7" pageNumber="244" type="distribution">
<paragraph id="21313066FFD48109FF6E55C16DB7F78E" blockId="7.[136,1451,2031,2092]" box="[189,1451,2031,2056]" pageId="7" pageNumber="244">
<emphasis id="13FAEC74FFD48109FF6E55C169F4F78E" bold="true" box="[189,488,2031,2056]" pageId="7" pageNumber="244">Distribution and ecology</emphasis>
:—The
<typeStatus id="FE358EC4FFD48109FD9355C16A6CF78E" box="[576,624,2031,2056]" pageId="7" pageNumber="244">type</typeStatus>
locality is the same as that of
<taxonomicName id="E68E4BE5FFD48109FC0055C16DB7F78E" authority="Tudesque et al. (2015: 24)" authorityName="Tudesque" authorityYear="2015" box="[979,1451,2031,2056]" class="Bacillariophyceae" family="Sellaphoraceae" genus="Lacuneolimna" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="7" pageNumber="244" phylum="Ochrophyta" rank="species" species="novagallia">
<emphasis id="13FAEC74FFD48109FC0055C16CE8F78E" box="[979,1268,2031,2056]" italics="true" pageId="7" pageNumber="244">Lacuneolimna novagallia</emphasis>
<bibRefCitation id="451F4D97FFD48109FB2F55C16DB7F78E" author="Tudesque, L. &amp; Le Cohu, R. &amp; Coste, M. &amp; Lange-Bertalot, H." box="[1276,1451,2031,2056]" pageId="7" pageNumber="244" pagination="19 - 30" refId="ref9789" refString="Tudesque, L., Le Cohu, R., Coste, M. &amp; Lange-Bertalot, H. (2015) Lacuneolimna gen. nov., Lacuneolimna zalokariae comb. nov. and Lacuneolimna novagallia spec. nov. (Bacillariophyceae) from the French Guiana diatom freshwater flora. Phytotaxa 231 (1): 19 - 30. http: // dx. doi. org / 10.11646 / phytotaxa. 231.1.2" type="journal article" year="2015">
Tudesque
<emphasis id="13FAEC74FFD48109FAA255C16DB9F78E" box="[1393,1445,2031,2056]" italics="true" pageId="7" pageNumber="244">et al</emphasis>
.
</bibRefCitation>
</taxonomicName>
</paragraph>
<paragraph id="21313066FFD48106FF5B5A3D6C1BFF5B" blockId="7.[136,1451,2031,2092]" lastBlockId="8.[136,1452,160,509]" lastPageId="8" lastPageNumber="245" pageId="7" pageNumber="244">
(2015: 24). At the place where it was sampled, the trophic status and the saprobic degree are very low, respectively oligotrophic and oligosaprobic. The same ecological status also applies to the localities where the species was found in the
<collectingRegion id="E34AFE84FFDB8106FF1D52EA6958FF5B" box="[206,324,196,221]" country="Argentina" name="Rio Negro" pageId="8" pageNumber="245">Rio Negro</collectingRegion>
basin (Amazon basin), including low pH preferences (
<emphasis id="13FAEC74FFDB8106FC7852EA6BD9FF5B" box="[939,965,196,221]" italics="true" pageId="8" pageNumber="245">ca</emphasis>
. 4.5).
</paragraph>
<paragraph id="21313066FFDB8106FF6E52C66C6DFE7B" blockId="8.[136,1452,160,509]" pageId="8" pageNumber="245">
In the
<typeStatus id="FE358EC4FFDB8106FED652C66928FE87" box="[261,308,232,257]" pageId="8" pageNumber="245">type</typeStatus>
locality, the diatom community consists of a high diversity of genera with many undetermined species, mainly in the genera
<taxonomicName id="E68E4BE5FFDB8106FEB9532269DDFEA3" authorityName="C.G.Ehrenberg" authorityYear="1837" box="[362,449,268,293]" class="Bacillariophyceae" family="Eunotiaceae" genus="Eunotia" higherTaxonomySource="GBIF" kingdom="Chromista" order="Eunotiales" pageId="8" pageNumber="245" phylum="Bacillariophyta" rank="genus">
<emphasis id="13FAEC74FFDB8106FEB9532269DDFEA3" box="[362,449,268,293]" italics="true" pageId="8" pageNumber="245">Eunotia</emphasis>
</taxonomicName>
,
<taxonomicName id="E68E4BE5FFDB8106FE1E53226A01FEA3" authorityName="Vyverman &amp; Compere" authorityYear="1991" box="[461,541,268,293]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Nupela" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="8" pageNumber="245" phylum="Ochrophyta" rank="genus">
<emphasis id="13FAEC74FFDB8106FE1E53226A01FEA3" box="[461,541,268,293]" italics="true" pageId="8" pageNumber="245">Nupela</emphasis>
</taxonomicName>
and
<taxonomicName id="E68E4BE5FFDB8106FD9C53226ADBFEA3" authorityName="C.Mereschkowsky" authorityYear="1902" box="[591,711,268,293]" class="Bacillariophyceae" family="Naviculaceae" genus="Sellaphora" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="8" pageNumber="245" phylum="Bacillariophyta" rank="genus">
<emphasis id="13FAEC74FFDB8106FD9C53226ADBFEA3" box="[591,711,268,293]" italics="true" pageId="8" pageNumber="245">Sellaphora</emphasis>
</taxonomicName>
.Although the exhaustive taxonomic inventory has not been finished yet, many accompanying species of
<taxonomicName id="E68E4BE5FFDB8106FDDC531E6ABDFECF" authorityName="Tudesque &amp; Cohu &amp; Wetzel" authorityYear="2016" box="[527,673,304,329]" class="Bacillariophyceae" family="Achnanthaceae" genus="Platessa" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="8" pageNumber="245" phylum="Bacillariophyta" rank="species" species="guianensis">
<emphasis id="13FAEC74FFDB8106FDDC531E6A3CFECF" box="[527,544,304,329]" italics="true" pageId="8" pageNumber="245">P</emphasis>
.
<emphasis id="13FAEC74FFDB8106FDFF531E6ABDFECF" box="[556,673,304,329]" italics="true" pageId="8" pageNumber="245">guianensis</emphasis>
</taxonomicName>
have been inventoried such as:
<taxonomicName id="E68E4BE5FFDB8106FC2B531E69DEFEEB" authority="Metzeltin &amp; Lange-Bertalot (1998: 31)" authorityName="Metzeltin &amp; Lange-Bertalot" authorityPageNumber="31" authorityYear="1998" class="Bacillariophyceae" family="Naviculaceae" genus="Chamaepinnularia" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="8" pageNumber="245" phylum="Bacillariophyta" rank="species" species="brasiliana">
<emphasis id="13FAEC74FFDB8106FC2B531E6D21FECF" box="[1016,1341,304,329]" italics="true" pageId="8" pageNumber="245">Chamaepinnularia brasiliana</emphasis>
<bibRefCitation id="451F4D97FFDB8106FA91531E69DEFEEB" author="Metzeltin, D. &amp; Lange-Bertalot, H." pageId="8" pageNumber="245" pagination="1 - 695" refId="ref8997" refString="Metzeltin, D. &amp; Lange-Bertalot, H. (1998) Tropical diatoms of South America I: About 700 predominantly rarely known or new taxa representative of the neotropical flora. Iconographia Diatomologica 5: 1 - 695." type="journal article" year="1998">Metzeltin &amp; Lange-Bertalot (1998: 31)</bibRefCitation>
</taxonomicName>
,
<taxonomicName id="E68E4BE5FFDB8106FE18537A6B82FEEB" authority="Hustedt (1937: 188)" authorityName="Hustedt" authorityPageNumber="188" authorityYear="1937" box="[459,926,340,365]" class="Bacillariophyceae" family="Cocconeidaceae" genus="Cocconeis" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="8" pageNumber="245" phylum="Bacillariophyta" rank="species" species="feuerbornii">
<emphasis id="13FAEC74FFDB8106FE18537A6AA2FEEB" box="[459,702,340,365]" italics="true" pageId="8" pageNumber="245">Cocconeis feuerbornii</emphasis>
<bibRefCitation id="451F4D97FFDB8106FD10537A6B82FEEB" author="Hustedt, F." box="[707,926,340,365]" pageId="8" pageNumber="245" pagination="187 - 295" refId="ref8155" refString="Hustedt, F. (1937) Systematische und okologische Untersuchungen uber die Diatomeen-Flora von Java, Bali und Sumatra nach dem Material der Deutschen Limnologischen Sunda-Expedition. &quot; Tropische Binnengewasser, Band VII &quot;. Archiv fur Hydrobiologie, Supplement 15 (2): 187 - 295." type="journal article" year="1937">Hustedt (1937: 188)</bibRefCitation>
</taxonomicName>
,
<taxonomicName id="E68E4BE5FFDB8106FC7A537A691CFE17" authority="Metzeltin &amp; Lange-Bertalot (1998: 86)" authorityName="Metzeltin &amp; Lange-Bertalot" authorityPageNumber="86" authorityYear="1998" class="Bacillariophyceae" family="Eunotiaceae" genus="Eunotia" higherTaxonomySource="GBIF" kingdom="Chromista" order="Eunotiales" pageId="8" pageNumber="245" phylum="Bacillariophyta" rank="species" species="yanomami">
<emphasis id="13FAEC74FFDB8106FC7A537A6C64FEEB" box="[937,1144,340,365]" italics="true" pageId="8" pageNumber="245">Eunotia yanomami</emphasis>
<bibRefCitation id="451F4D97FFDB8106FBAF537A691CFE17" author="Metzeltin, D. &amp; Lange-Bertalot, H." pageId="8" pageNumber="245" pagination="1 - 695" refId="ref8997" refString="Metzeltin, D. &amp; Lange-Bertalot, H. (1998) Tropical diatoms of South America I: About 700 predominantly rarely known or new taxa representative of the neotropical flora. Iconographia Diatomologica 5: 1 - 695." type="journal article" year="1998">Metzeltin &amp; Lange-Bertalot (1998: 86)</bibRefCitation>
</taxonomicName>
,
<taxonomicName id="E68E4BE5FFDB8106FEDD53566C7BFE17" authority="Moser, Lange-Bertalot &amp; Metzeltin" authorityName="Moser, Lange-Bertalot &amp; Metzeltin" box="[270,1127,376,401]" class="Bacillariophyceae" family="Gomphonemaceae" genus="Gomphonema" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="8" pageNumber="245" phylum="Ochrophyta" rank="subSpecies" species="brasiliense" subSpecies="pacificum">
<emphasis id="13FAEC74FFDB8106FEDD53566A35FE17" box="[270,553,376,401]" italics="true" pageId="8" pageNumber="245">Gomphonema brasiliense</emphasis>
ssp.
<emphasis id="13FAEC74FFDB8106FDB553566ACEFE17" box="[614,722,376,401]" italics="true" pageId="8" pageNumber="245">pacificum</emphasis>
Moser, Lange-Bertalot &amp; Metzeltin
</taxonomicName>
in
<bibRefCitation id="451F4D97FFDB8106FB5C53566DBBFE17" author="Moser, G. &amp; Lange-Bertalot, H. &amp; Metzeltin, D." box="[1167,1447,376,401]" pageId="8" pageNumber="245" pagination="1 - 464" refId="ref9209" refString="Moser, G., Lange-Bertalot, H. &amp; Metzeltin, D. (1998) Insel der Endemiten Geobotanisches Phanomen Neukaledonien (Island of endemics New Caledonia - a geobotanical phenomenon). Bibliotheca Diatomologica 38: 1 - 464." type="journal article" year="1998">
Moser
<emphasis id="13FAEC74FFDB8106FB0C53566D05FE17" box="[1247,1305,376,401]" italics="true" pageId="8" pageNumber="245">et al.</emphasis>
(1998: 185)
</bibRefCitation>
,
<taxonomicName id="E68E4BE5FFDB8106FF5B53B269D1FE33" authority="Fricke" authorityName="Fricke" authorityYear="1904" box="[136,461,412,437]" class="Bacillariophyceae" family="Gomphonemaceae" genus="Gomphonema" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="8" pageNumber="245" phylum="Ochrophyta" rank="species" species="lepidum">
<emphasis id="13FAEC74FFDB8106FF5B53B2699EFE33" box="[136,386,412,437]" italics="true" pageId="8" pageNumber="245">Gomphonema lepidum</emphasis>
Fricke
</taxonomicName>
in Schmidt (1904: 248),
<taxonomicName id="E68E4BE5FFDB8106FD0E53B26CF9FE33" authority="Tudesque &amp; Le Cohu" authorityName="Tudesque &amp; Le Cohu" box="[733,1253,412,437]" class="Bacillariophyceae" family="Sellaphoraceae" genus="Lacuneolimna" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="8" pageNumber="245" phylum="Ochrophyta" rank="species" species="novagallia">
<emphasis id="13FAEC74FFDB8106FD0E53B26BE9FE33" box="[733,1013,412,437]" italics="true" pageId="8" pageNumber="245">Lacuneolimna novagallia</emphasis>
Tudesque &amp; Le Cohu
</taxonomicName>
in
<bibRefCitation id="451F4D97FFDB8106FAD553B268E0FE5F" author="Tudesque, L. &amp; Le Cohu, R. &amp; Coste, M. &amp; Lange-Bertalot, H." pageId="8" pageNumber="245" pagination="19 - 30" refId="ref9789" refString="Tudesque, L., Le Cohu, R., Coste, M. &amp; Lange-Bertalot, H. (2015) Lacuneolimna gen. nov., Lacuneolimna zalokariae comb. nov. and Lacuneolimna novagallia spec. nov. (Bacillariophyceae) from the French Guiana diatom freshwater flora. Phytotaxa 231 (1): 19 - 30. http: // dx. doi. org / 10.11646 / phytotaxa. 231.1.2" type="journal article" year="2015">
Tudesque
<emphasis id="13FAEC74FFDB8106FAA653B26DB0FE33" box="[1397,1452,412,437]" italics="true" pageId="8" pageNumber="245">et al.</emphasis>
(2015: 24)
</bibRefCitation>
,
<taxonomicName id="E68E4BE5FFDB8106FED453EE6CFAFE5F" authority="(Lange-Bertalot &amp; Metzeltin 1998: 39) Tudesque, Le Cohu &amp; Lange-Bertalot" authorityName="Tudesque, Le Cohu &amp; Lange-Bertalot" baseAuthorityName="Lange-Bertalot &amp; Metzeltin" baseAuthorityPageNumber="39" baseAuthorityYear="1998" box="[263,1254,448,473]" class="Bacillariophyceae" family="Sellaphoraceae" genus="Lacuneolimna" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="8" pageNumber="245" phylum="Ochrophyta" rank="species" species="zalokariae">
<emphasis id="13FAEC74FFDB8106FED453EE690AFE5F" box="[263,278,448,473]" italics="true" pageId="8" pageNumber="245">L</emphasis>
.
<emphasis id="13FAEC74FFDB8106FEF053EE698BFE5F" box="[291,407,448,473]" italics="true" pageId="8" pageNumber="245">zalokariae</emphasis>
(Lange-Bertalot &amp;
<bibRefCitation id="451F4D97FFDB8106FDBF53EE6B20FE5F" author="Metzeltin, D. &amp; Lange-Bertalot, H." box="[620,828,448,473]" pageId="8" pageNumber="245" pagination="1 - 695" refId="ref8997" refString="Metzeltin, D. &amp; Lange-Bertalot, H. (1998) Tropical diatoms of South America I: About 700 predominantly rarely known or new taxa representative of the neotropical flora. Iconographia Diatomologica 5: 1 - 695." type="journal article" year="1998">Metzeltin 1998: 39</bibRefCitation>
) Tudesque, Le Cohu &amp; Lange-Bertalot
</taxonomicName>
in
<bibRefCitation id="451F4D97FFDB8106FAD553EE68E1FE7B" author="Tudesque, L. &amp; Le Cohu, R. &amp; Coste, M. &amp; Lange-Bertalot, H." pageId="8" pageNumber="245" pagination="19 - 30" refId="ref9789" refString="Tudesque, L., Le Cohu, R., Coste, M. &amp; Lange-Bertalot, H. (2015) Lacuneolimna gen. nov., Lacuneolimna zalokariae comb. nov. and Lacuneolimna novagallia spec. nov. (Bacillariophyceae) from the French Guiana diatom freshwater flora. Phytotaxa 231 (1): 19 - 30. http: // dx. doi. org / 10.11646 / phytotaxa. 231.1.2" type="journal article" year="2015">
Tudesque
<emphasis id="13FAEC74FFDB8106FAA653EE6DB0FE5F" box="[1397,1452,448,473]" italics="true" pageId="8" pageNumber="245">et al.</emphasis>
(2015: 21)
</bibRefCitation>
, and
<taxonomicName id="E68E4BE5FFDB8106FEE553CA6C71FE7B" authority="(Hustedt 1952: 385) Lange-Bertalot (1999: 283)" authorityName="Lange-Bertalot" authorityPageNumber="283" authorityYear="1999" baseAuthorityName="Hustedt" baseAuthorityPageNumber="385" baseAuthorityYear="1952" box="[310,1133,484,509]" class="Bacillariophyceae" family="Achnanthaceae" genus="Planothidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="8" pageNumber="245" phylum="Bacillariophyta" rank="species" species="magnificum">
<emphasis id="13FAEC74FFDB8106FEE553CA6A48FE7B" box="[310,596,484,509]" italics="true" pageId="8" pageNumber="245">Planothidium magnificum</emphasis>
(
<bibRefCitation id="451F4D97FFDB8106FDB153CA6B33FE7B" author="Hustedt, F." box="[610,815,484,509]" pageId="8" pageNumber="245" pagination="366 - 410" refId="ref8313" refString="Hustedt, F. (1952) Neue und wenig bekannte Diatomeen. IV. Botaniska Notiser 1952: 366 - 410." type="journal article" year="1952">Hustedt 1952: 385</bibRefCitation>
)
<bibRefCitation id="451F4D97FFDB8106FCEE53CA6C71FE7B" author="Lange-Bertalot, H." box="[829,1133,484,509]" pageId="8" pageNumber="245" pagination="276 - 289" refId="ref8615" refString="Lange-Bertalot, H. (1999) Neue Kombinationen von Taxa aus Achnanthes Bory (sensu lato). Iconographia Diatomologica 6: 276 - 289." type="journal article" year="1999">Lange-Bertalot (1999: 283)</bibRefCitation>
</taxonomicName>
.
</paragraph>
</subSubSection>
</treatment>
</document>

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@ -0,0 +1,216 @@
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<treatment id="A9278170FFDB8107FF5B50046D02FDBD" ID-DOI="http://doi.org/10.5281/zenodo.13667182" ID-Zenodo-Dep="13667182" LSID="urn:lsid:plazi:treatment:A9278170FFDB8107FF5B50046D02FDBD" httpUri="http://treatment.plazi.org/id/A9278170FFDB8107FF5B50046D02FDBD" lastPageId="9" lastPageNumber="246" pageId="8" pageNumber="245">
<subSubSection id="699463EDFFDB8106FF5B50046B15FB05" pageId="8" pageNumber="245" type="nomenclature">
<paragraph id="21313066FFDB8106FF5B50046C17FDC3" blockId="8.[136,1035,554,581]" box="[136,1035,554,581]" pageId="8" pageNumber="245">
<heading id="7A79870AFFDB8106FF5B50046C17FDC3" bold="true" box="[136,1035,554,581]" fontSize="11" level="1" pageId="8" pageNumber="245" reason="1">
<emphasis id="13FAEC74FFDB8106FF5B50046C17FDC3" bold="true" box="[136,1035,554,581]" pageId="8" pageNumber="245">
<taxonomicName id="E68E4BE5FFDB8106FF5B50046AE2FDC3" authority="Tudesque, Le Cohu &amp; C.E.Wetzel" authorityName="Tudesque, Le Cohu &amp; C. E. Wetzel" authorityYear="2016" box="[136,766,554,581]" class="Bacillariophyceae" family="Achnanthaceae" genus="Platessa" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="8" pageNumber="245" phylum="Bacillariophyta" rank="species" species="itoupensis" status="sp. nov.">
<emphasis id="13FAEC74FFDB8106FF5B5004697FFDC2" bold="true" box="[136,355,554,581]" italics="true" pageId="8" pageNumber="245">Platessa itoupensis</emphasis>
Tudesque, Le Cohu &amp; C.E.Wetzel
</taxonomicName>
,
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<emphasis id="13FAEC74FFDB8106FCD950056B3FFDC3" bold="true" box="[778,803,555,581]" italics="true" pageId="8" pageNumber="245">sp</emphasis>
.
<emphasis id="13FAEC74FFDB8106FCE250056B47FDC3" bold="true" box="[817,859,555,581]" italics="true" pageId="8" pageNumber="245">nov</emphasis>
.
</taxonomicNameLabel>
(
<figureCitation id="B9B52CE3FFDB8106FCA250026C1EFDC3" box="[881,1026,555,581]" captionStart-0="FIGURES 72136" captionStart-1="FIGURES 137142" captionStart-2="FIGURES 143145" captionStartId-0="8.[136,243,2026,2047]" captionStartId-1="9.[136,243,1918,1939]" captionStartId-2="11.[136,243,1984,2005]" captionTargetBox-0="[172,1413,1190,1989]" captionTargetBox-1="[196,1396,610,1889]" captionTargetBox-2="[159,1430,200,1954]" captionTargetId-0="figure-504@8.[164,1423,1181,2001]" captionTargetId-1="figure-189@9.[183,1404,596,1893]" captionTargetId-2="figure-14@11.[151,1436,190,1959]" captionTargetPageId-0="8" captionTargetPageId-1="9" captionTargetPageId-2="11" captionText-0="FIGURES 72136. Platessa itoupensis sp. nov., type material from French Guiana. 72136. LM, range of size. 72105. Raphe sternum valve (RSV). 106136. Sternum valve (SV)." captionText-1="FIGURES 137142. Platessa itoupensis sp. nov., material from French Guiana. SEM. 137138. External view of the RSV showing the coarse and curved multiseriate striae, the features of the raphe sternum. Hyaline area surrounding the valve. 139. Tilted view of the external RSV, note the weakly thickness of the mantle free from poroids or areolae. 140. Details of external proximal raphe endings surrounded by a groove weakly extended (arrow). 141. Details of external distal raphe ending with circumflex-like extended groove. 142. Inner view of the RSV showing the raphe features, raphe endings deflected to opposite sides. Note the open valvocopula (arrow)." captionText-2="FIGURES 143145. Platessa itoupensis sp. nov., material from French Guiana. SEM. 143. External view of the SV with wide axial area and wide interstriae. 144, 145. Internal view of the SV. Striae with occluded areoale between clearly sunken raised virgae." figureDoi-0="http://doi.org/10.5281/zenodo.13667196" figureDoi-1="http://doi.org/10.5281/zenodo.13667198" figureDoi-2="http://doi.org/10.5281/zenodo.13667204" httpUri-0="https://zenodo.org/record/13667196/files/figure.png" httpUri-1="https://zenodo.org/record/13667198/files/figure.png" httpUri-2="https://zenodo.org/record/13667204/files/figure.png" pageId="8" pageNumber="245">Figs 72145</figureCitation>
)
</emphasis>
</heading>
</paragraph>
<paragraph id="21313066FFDB8106FF5B50586B15FB05" blockId="8.[136,1452,630,1155]" pageId="8" pageNumber="245">
LM (
<figureCitation id="B9B52CE3FFDB8106FF6B50586929FD0D" box="[184,309,630,651]" captionStart="FIGURES 72136" captionStartId="8.[136,243,2026,2047]" captionTargetBox="[172,1413,1190,1989]" captionTargetId="figure-504@8.[164,1423,1181,2001]" captionTargetPageId="8" captionText="FIGURES 72136. Platessa itoupensis sp. nov., type material from French Guiana. 72136. LM, range of size. 72105. Raphe sternum valve (RSV). 106136. Sternum valve (SV)." figureDoi="http://doi.org/10.5281/zenodo.13667196" httpUri="https://zenodo.org/record/13667196/files/figure.png" pageId="8" pageNumber="245">Figs 72136</figureCitation>
): Valves linear-elliptical in the largest individuals (
<figureCitation id="B9B52CE3FFDB8106FCC550586B86FD0D" box="[790,922,630,651]" captionStart="FIGURES 72136" captionStartId="8.[136,243,2026,2047]" captionTargetBox="[172,1413,1190,1989]" captionTargetId="figure-504@8.[164,1423,1181,2001]" captionTargetPageId="8" captionText="FIGURES 72136. Platessa itoupensis sp. nov., type material from French Guiana. 72136. LM, range of size. 72105. Raphe sternum valve (RSV). 106136. Sternum valve (SV)." figureDoi="http://doi.org/10.5281/zenodo.13667196" httpUri="https://zenodo.org/record/13667196/files/figure.png" pageId="8" pageNumber="245">Figs 106, 107</figureCitation>
) becoming narrowly elliptical in large individuals (
<figureCitation id="B9B52CE3FFDB8106FA52505868E0FD29" captionStart="FIGURES 72136" captionStartId="8.[136,243,2026,2047]" captionTargetBox="[172,1413,1190,1989]" captionTargetId="figure-504@8.[164,1423,1181,2001]" captionTargetPageId="8" captionText="FIGURES 72136. Platessa itoupensis sp. nov., type material from French Guiana. 72136. LM, range of size. 72105. Raphe sternum valve (RSV). 106136. Sternum valve (SV)." figureDoi="http://doi.org/10.5281/zenodo.13667196" httpUri="https://zenodo.org/record/13667196/files/figure.png" pageId="8" pageNumber="245">Figs 7274</figureCitation>
) to elliptical in the smallest ones (
<figureCitation id="B9B52CE3FFDB8106FD8150B46B5DFD29" box="[594,833,666,687]" captionStart="FIGURES 72136" captionStartId="8.[136,243,2026,2047]" captionTargetBox="[172,1413,1190,1989]" captionTargetId="figure-504@8.[164,1423,1181,2001]" captionTargetPageId="8" captionText="FIGURES 72136. Platessa itoupensis sp. nov., type material from French Guiana. 72136. LM, range of size. 72105. Raphe sternum valve (RSV). 106136. Sternum valve (SV)." figureDoi="http://doi.org/10.5281/zenodo.13667196" httpUri="https://zenodo.org/record/13667196/files/figure.png" pageId="8" pageNumber="245">Figs 100105, 132136</figureCitation>
). Length: 7.018.7 μm; width: 4.46.3 μm, ratio length/width: 1.53.2 (n= 60). Raphe sternum valve with narrow lanceolate axial area slightly widened towards the asymmetrical central area (
<figureCitation id="B9B52CE3FFDB8106FF1750CC695DFD71" box="[196,321,738,759]" captionStart="FIGURES 72136" captionStartId="8.[136,243,2026,2047]" captionTargetBox="[172,1413,1190,1989]" captionTargetId="figure-504@8.[164,1423,1181,2001]" captionTargetPageId="8" captionText="FIGURES 72136. Platessa itoupensis sp. nov., type material from French Guiana. 72136. LM, range of size. 72105. Raphe sternum valve (RSV). 106136. Sternum valve (SV)." figureDoi="http://doi.org/10.5281/zenodo.13667196" httpUri="https://zenodo.org/record/13667196/files/figure.png" pageId="8" pageNumber="245">Figs 72105</figureCitation>
). Central area bordered by 1 to 3 shorter striae. Raphe branches straight with proximal endings hardly expanded. Striae radiate, coarse and curved; density: 8.512.6/10 μm. Sternum valve with a relatively wide lanceolate axial area (
<figureCitation id="B9B52CE3FFDB8106FAC651286DBCFC9D" box="[1301,1440,774,795]" captionStart="FIGURES 72136" captionStartId="8.[136,243,2026,2047]" captionTargetBox="[172,1413,1190,1989]" captionTargetId="figure-504@8.[164,1423,1181,2001]" captionTargetPageId="8" captionText="FIGURES 72136. Platessa itoupensis sp. nov., type material from French Guiana. 72136. LM, range of size. 72105. Raphe sternum valve (RSV). 106136. Sternum valve (SV)." figureDoi="http://doi.org/10.5281/zenodo.13667196" httpUri="https://zenodo.org/record/13667196/files/figure.png" pageId="8" pageNumber="245">Figs 106136</figureCitation>
). Striae subparallel in the central part of the valve becoming slightly radiate near the apices. Density of striae: 7.010/10 μm, with interstriae wider than the striae. SEM (
<figureCitation id="B9B52CE3FFDB8106FDE851606ADBFCE5" box="[571,711,846,867]" captionStart-0="FIGURES 137142" captionStart-1="FIGURES 143145" captionStartId-0="9.[136,243,1918,1939]" captionStartId-1="11.[136,243,1984,2005]" captionTargetBox-0="[196,1396,610,1889]" captionTargetBox-1="[159,1430,200,1954]" captionTargetId-0="figure-189@9.[183,1404,596,1893]" captionTargetId-1="figure-14@11.[151,1436,190,1959]" captionTargetPageId-0="9" captionTargetPageId-1="11" captionText-0="FIGURES 137142. Platessa itoupensis sp. nov., material from French Guiana. SEM. 137138. External view of the RSV showing the coarse and curved multiseriate striae, the features of the raphe sternum. Hyaline area surrounding the valve. 139. Tilted view of the external RSV, note the weakly thickness of the mantle free from poroids or areolae. 140. Details of external proximal raphe endings surrounded by a groove weakly extended (arrow). 141. Details of external distal raphe ending with circumflex-like extended groove. 142. Inner view of the RSV showing the raphe features, raphe endings deflected to opposite sides. Note the open valvocopula (arrow)." captionText-1="FIGURES 143145. Platessa itoupensis sp. nov., material from French Guiana. SEM. 143. External view of the SV with wide axial area and wide interstriae. 144, 145. Internal view of the SV. Striae with occluded areoale between clearly sunken raised virgae." figureDoi-0="http://doi.org/10.5281/zenodo.13667198" figureDoi-1="http://doi.org/10.5281/zenodo.13667204" httpUri-0="https://zenodo.org/record/13667198/files/figure.png" httpUri-1="https://zenodo.org/record/13667204/files/figure.png" pageId="8" pageNumber="245">Figs 137145</figureCitation>
): Externally, RSV with proximal endings drop-like shaped surrounded by a weakly extended groove (
<figureCitation id="B9B52CE3FFDB8106FE6E515C6A67FC01" box="[445,635,882,903]" captionStart="FIGURES 137142" captionStartId="9.[136,243,1918,1939]" captionTargetBox="[196,1396,610,1889]" captionTargetId="figure-189@9.[183,1404,596,1893]" captionTargetPageId="9" captionText="FIGURES 137142. Platessa itoupensis sp. nov., material from French Guiana. SEM. 137138. External view of the RSV showing the coarse and curved multiseriate striae, the features of the raphe sternum. Hyaline area surrounding the valve. 139. Tilted view of the external RSV, note the weakly thickness of the mantle free from poroids or areolae. 140. Details of external proximal raphe endings surrounded by a groove weakly extended (arrow). 141. Details of external distal raphe ending with circumflex-like extended groove. 142. Inner view of the RSV showing the raphe features, raphe endings deflected to opposite sides. Note the open valvocopula (arrow)." figureDoi="http://doi.org/10.5281/zenodo.13667198" httpUri="https://zenodo.org/record/13667198/files/figure.png" pageId="8" pageNumber="245">Figs 137, 138, 140</figureCitation>
, arrow). Straight distal endings located in a transapically extended groove inverse circumflexe-like shaped (looks like bird flying,
<figureCitation id="B9B52CE3FFDB8106FD4F51B86B46FC2D" box="[668,858,918,939]" captionStart="FIGURES 137142" captionStartId="9.[136,243,1918,1939]" captionTargetBox="[196,1396,610,1889]" captionTargetId="figure-189@9.[183,1404,596,1893]" captionTargetPageId="9" captionText="FIGURES 137142. Platessa itoupensis sp. nov., material from French Guiana. SEM. 137138. External view of the RSV showing the coarse and curved multiseriate striae, the features of the raphe sternum. Hyaline area surrounding the valve. 139. Tilted view of the external RSV, note the weakly thickness of the mantle free from poroids or areolae. 140. Details of external proximal raphe endings surrounded by a groove weakly extended (arrow). 141. Details of external distal raphe ending with circumflex-like extended groove. 142. Inner view of the RSV showing the raphe features, raphe endings deflected to opposite sides. Note the open valvocopula (arrow)." figureDoi="http://doi.org/10.5281/zenodo.13667198" httpUri="https://zenodo.org/record/13667198/files/figure.png" pageId="8" pageNumber="245">Figs 137139, 141</figureCitation>
). Very narrow hyaline area surrounding the valve, widened and more silicified at the apices (
<figureCitation id="B9B52CE3FFDB8106FDD251946A97FC49" box="[513,651,954,975]" captionStart="FIGURES 137142" captionStartId="9.[136,243,1918,1939]" captionTargetBox="[196,1396,610,1889]" captionTargetId="figure-189@9.[183,1404,596,1893]" captionTargetPageId="9" captionText="FIGURES 137142. Platessa itoupensis sp. nov., material from French Guiana. SEM. 137138. External view of the RSV showing the coarse and curved multiseriate striae, the features of the raphe sternum. Hyaline area surrounding the valve. 139. Tilted view of the external RSV, note the weakly thickness of the mantle free from poroids or areolae. 140. Details of external proximal raphe endings surrounded by a groove weakly extended (arrow). 141. Details of external distal raphe ending with circumflex-like extended groove. 142. Inner view of the RSV showing the raphe features, raphe endings deflected to opposite sides. Note the open valvocopula (arrow)." figureDoi="http://doi.org/10.5281/zenodo.13667198" httpUri="https://zenodo.org/record/13667198/files/figure.png" pageId="8" pageNumber="245">Figs 137139</figureCitation>
). Internally, proximal raphe endings clearly deflected to opposite directions, distal raphe ending slightly deflected in a tiny helictoglossa (
<figureCitation id="B9B52CE3FFDB8106FD3651F06B20FC75" box="[741,828,990,1011]" captionStart="FIGURES 137142" captionStartId="9.[136,243,1918,1939]" captionTargetBox="[196,1396,610,1889]" captionTargetId="figure-189@9.[183,1404,596,1893]" captionTargetPageId="9" captionText="FIGURES 137142. Platessa itoupensis sp. nov., material from French Guiana. SEM. 137138. External view of the RSV showing the coarse and curved multiseriate striae, the features of the raphe sternum. Hyaline area surrounding the valve. 139. Tilted view of the external RSV, note the weakly thickness of the mantle free from poroids or areolae. 140. Details of external proximal raphe endings surrounded by a groove weakly extended (arrow). 141. Details of external distal raphe ending with circumflex-like extended groove. 142. Inner view of the RSV showing the raphe features, raphe endings deflected to opposite sides. Note the open valvocopula (arrow)." figureDoi="http://doi.org/10.5281/zenodo.13667198" httpUri="https://zenodo.org/record/13667198/files/figure.png" pageId="8" pageNumber="245">Fig. 142</figureCitation>
). Externally, SV slightly convex (
<figureCitation id="B9B52CE3FFDB8106FB4351F06CFBFC75" box="[1168,1255,990,1011]" captionStart="FIGURES 143145" captionStartId="11.[136,243,1984,2005]" captionTargetBox="[159,1430,200,1954]" captionTargetId="figure-14@11.[151,1436,190,1959]" captionTargetPageId="11" captionText="FIGURES 143145. Platessa itoupensis sp. nov., material from French Guiana. SEM. 143. External view of the SV with wide axial area and wide interstriae. 144, 145. Internal view of the SV. Striae with occluded areoale between clearly sunken raised virgae." figureDoi="http://doi.org/10.5281/zenodo.13667204" httpUri="https://zenodo.org/record/13667204/files/figure.png" pageId="8" pageNumber="245">Fig. 143</figureCitation>
). Internally, areolae lying in shallow depressions and extending on the mantle (
<figureCitation id="B9B52CE3FFDB8106FD20562C6B5BFB91" box="[755,839,1026,1047]" captionStart="FIGURES 143145" captionStartId="11.[136,243,1984,2005]" captionTargetBox="[159,1430,200,1954]" captionTargetId="figure-14@11.[151,1436,190,1959]" captionTargetPageId="11" captionText="FIGURES 143145. Platessa itoupensis sp. nov., material from French Guiana. SEM. 143. External view of the SV with wide axial area and wide interstriae. 144, 145. Internal view of the SV. Striae with occluded areoale between clearly sunken raised virgae." figureDoi="http://doi.org/10.5281/zenodo.13667204" httpUri="https://zenodo.org/record/13667204/files/figure.png" pageId="8" pageNumber="245">Fig. 145</figureCitation>
). Biseriate striae, sometimes irregularly triseriate. Areolae open externally (
<figureCitation id="B9B52CE3FFDB8106FEF9560869ADFBBD" box="[298,433,1062,1083]" captionStart="FIGURES 137142" captionStartId="9.[136,243,1918,1939]" captionTargetBox="[196,1396,610,1889]" captionTargetId="figure-189@9.[183,1404,596,1893]" captionTargetPageId="9" captionText="FIGURES 137142. Platessa itoupensis sp. nov., material from French Guiana. SEM. 137138. External view of the RSV showing the coarse and curved multiseriate striae, the features of the raphe sternum. Hyaline area surrounding the valve. 139. Tilted view of the external RSV, note the weakly thickness of the mantle free from poroids or areolae. 140. Details of external proximal raphe endings surrounded by a groove weakly extended (arrow). 141. Details of external distal raphe ending with circumflex-like extended groove. 142. Inner view of the RSV showing the raphe features, raphe endings deflected to opposite sides. Note the open valvocopula (arrow)." figureDoi="http://doi.org/10.5281/zenodo.13667198" httpUri="https://zenodo.org/record/13667198/files/figure.png" pageId="8" pageNumber="245">Figs 137141</figureCitation>
) and occluded internally by a hymen stomato-like (
<figureCitation id="B9B52CE3FFDB8106FC7356086BEEFBBD" box="[928,1010,1062,1083]" captionStart="FIGURES 137142" captionStartId="9.[136,243,1918,1939]" captionTargetBox="[196,1396,610,1889]" captionTargetId="figure-189@9.[183,1404,596,1893]" captionTargetPageId="9" captionText="FIGURES 137142. Platessa itoupensis sp. nov., material from French Guiana. SEM. 137138. External view of the RSV showing the coarse and curved multiseriate striae, the features of the raphe sternum. Hyaline area surrounding the valve. 139. Tilted view of the external RSV, note the weakly thickness of the mantle free from poroids or areolae. 140. Details of external proximal raphe endings surrounded by a groove weakly extended (arrow). 141. Details of external distal raphe ending with circumflex-like extended groove. 142. Inner view of the RSV showing the raphe features, raphe endings deflected to opposite sides. Note the open valvocopula (arrow)." figureDoi="http://doi.org/10.5281/zenodo.13667198" httpUri="https://zenodo.org/record/13667198/files/figure.png" pageId="8" pageNumber="245">Fig. 142</figureCitation>
,
<figureCitation id="B9B52CE3FFDB8106FC2F56086C4FFBBD" box="[1020,1107,1062,1083]" captionStart="FIGURES 143145" captionStartId="11.[136,243,1984,2005]" captionTargetBox="[159,1430,200,1954]" captionTargetId="figure-14@11.[151,1436,190,1959]" captionTargetPageId="11" captionText="FIGURES 143145. Platessa itoupensis sp. nov., material from French Guiana. SEM. 143. External view of the SV with wide axial area and wide interstriae. 144, 145. Internal view of the SV. Striae with occluded areoale between clearly sunken raised virgae." figureDoi="http://doi.org/10.5281/zenodo.13667204" httpUri="https://zenodo.org/record/13667204/files/figure.png" pageId="8" pageNumber="245">144, 145</figureCitation>
). Apical striae frequently merged in the RSV but not in the SV (
<figureCitation id="B9B52CE3FFDB8106FE1B56646AAFFBD9" box="[456,691,1098,1119]" captionStart="FIGURES 137142" captionStartId="9.[136,243,1918,1939]" captionTargetBox="[196,1396,610,1889]" captionTargetId="figure-189@9.[183,1404,596,1893]" captionTargetPageId="9" captionText="FIGURES 137142. Platessa itoupensis sp. nov., material from French Guiana. SEM. 137138. External view of the RSV showing the coarse and curved multiseriate striae, the features of the raphe sternum. Hyaline area surrounding the valve. 139. Tilted view of the external RSV, note the weakly thickness of the mantle free from poroids or areolae. 140. Details of external proximal raphe endings surrounded by a groove weakly extended (arrow). 141. Details of external distal raphe ending with circumflex-like extended groove. 142. Inner view of the RSV showing the raphe features, raphe endings deflected to opposite sides. Note the open valvocopula (arrow)." figureDoi="http://doi.org/10.5281/zenodo.13667198" httpUri="https://zenodo.org/record/13667198/files/figure.png" pageId="8" pageNumber="245">Figs 137139, 141, 142</figureCitation>
). On both valves presence of notches (RSV
<figureCitation id="B9B52CE3FFDB8106FB8D56646CF8FBD9" box="[1118,1252,1098,1119]" captionStart="FIGURES 137142" captionStartId="9.[136,243,1918,1939]" captionTargetBox="[196,1396,610,1889]" captionTargetId="figure-189@9.[183,1404,596,1893]" captionTargetPageId="9" captionText="FIGURES 137142. Platessa itoupensis sp. nov., material from French Guiana. SEM. 137138. External view of the RSV showing the coarse and curved multiseriate striae, the features of the raphe sternum. Hyaline area surrounding the valve. 139. Tilted view of the external RSV, note the weakly thickness of the mantle free from poroids or areolae. 140. Details of external proximal raphe endings surrounded by a groove weakly extended (arrow). 141. Details of external distal raphe ending with circumflex-like extended groove. 142. Inner view of the RSV showing the raphe features, raphe endings deflected to opposite sides. Note the open valvocopula (arrow)." figureDoi="http://doi.org/10.5281/zenodo.13667198" httpUri="https://zenodo.org/record/13667198/files/figure.png" pageId="8" pageNumber="245">Figs 137, 138</figureCitation>
, arrows; SV notches hidden by valvocopula). Valvocupula open (
<figureCitation id="B9B52CE3FFDB8106FDB656406AA4FB05" box="[613,696,1134,1155]" captionStart="FIGURES 137142" captionStartId="9.[136,243,1918,1939]" captionTargetBox="[196,1396,610,1889]" captionTargetId="figure-189@9.[183,1404,596,1893]" captionTargetPageId="9" captionText="FIGURES 137142. Platessa itoupensis sp. nov., material from French Guiana. SEM. 137138. External view of the RSV showing the coarse and curved multiseriate striae, the features of the raphe sternum. Hyaline area surrounding the valve. 139. Tilted view of the external RSV, note the weakly thickness of the mantle free from poroids or areolae. 140. Details of external proximal raphe endings surrounded by a groove weakly extended (arrow). 141. Details of external distal raphe ending with circumflex-like extended groove. 142. Inner view of the RSV showing the raphe features, raphe endings deflected to opposite sides. Note the open valvocopula (arrow)." figureDoi="http://doi.org/10.5281/zenodo.13667198" httpUri="https://zenodo.org/record/13667198/files/figure.png" pageId="8" pageNumber="245">Fig. 142</figureCitation>
, arrow).
</paragraph>
</subSubSection>
<caption id="75F160EEFFDB8106FF5B55C46A2FF7A5" ID-DOI="http://doi.org/10.5281/zenodo.13667196" ID-Zenodo-Dep="13667196" httpUri="https://zenodo.org/record/13667196/files/figure.png" pageId="8" pageNumber="245" startId="8.[136,243,2026,2047]" targetBox="[172,1413,1190,1989]" targetPageId="8" targetType="figure">
<paragraph id="21313066FFDB8106FF5B55C46A2FF7A5" blockId="8.[136,1451,2026,2083]" pageId="8" pageNumber="245">
<emphasis id="13FAEC74FFDB8106FF5B55C4695BF879" bold="true" box="[136,327,2026,2047]" pageId="8" pageNumber="245">FIGURES 72136.</emphasis>
<taxonomicName id="E68E4BE5FFDB8106FE9D55C46A1AF879" authorityName="Tudesque &amp; Cohu &amp; Wetzel" authorityYear="2016" box="[334,518,2026,2047]" class="Bacillariophyceae" family="Achnanthaceae" genus="Platessa" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="8" pageNumber="245" phylum="Bacillariophyta" rank="species" species="itoupensis" status="sp. nov.">
<emphasis id="13FAEC74FFDB8106FE9D55C46A1AF879" box="[334,518,2026,2047]" italics="true" pageId="8" pageNumber="245">Platessa itoupensis</emphasis>
</taxonomicName>
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<emphasis id="13FAEC74FFDB8106FDDE55C46A3EF879" box="[525,546,2026,2047]" italics="true" pageId="8" pageNumber="245">sp</emphasis>
.
<emphasis id="13FAEC74FFDB8106FDFC55C46A4EF879" box="[559,594,2026,2047]" italics="true" pageId="8" pageNumber="245">nov</emphasis>
.
</taxonomicNameLabel>
, type material from French Guiana. 72136. LM, range of size. 72105. Raphe sternum valve (RSV). 106136. Sternum valve (SV).
</paragraph>
</caption>
<subSubSection id="699463EDFFDA8107FF5B528E6C4CFEE5" pageId="9" pageNumber="246" type="materials_examined">
<paragraph id="21313066FFDA8107FF5B528E6AC4FEA7" blockId="9.[136,1452,160,289]" pageId="9" pageNumber="246">
<emphasis id="13FAEC74FFDA8107FF5B528E68DEFF33" bold="true" box="[136,194,160,181]" pageId="9" pageNumber="246">Type:</emphasis>
<collectingCountry id="599970F6FFDA8107FF09528E69B8FF33" box="[218,420,160,181]" name="French Guiana" pageId="9" pageNumber="246">FRENCH GUIANA</collectingCountry>
. River “Sable” in the southeastern side of the Oyapock basin in the Itoupe Mountains, Southern center of French Guiana,
<geoCoordinate id="44BA56A1FFDA8107FEA452EA69CEFF5F" box="[375,466,196,217]" degrees="3.040" direction="north" orientation="latitude" pageId="9" pageNumber="246" precision="55" value="3.04">3.040° N</geoCoordinate>
,
<geoCoordinate id="44BA56A1FFDA8107FE0D52EA6A54FF5F" box="[478,584,196,217]" degrees="53.078" direction="west" orientation="longitude" pageId="9" pageNumber="246" precision="55" value="-53.078">53.078° W</geoCoordinate>
, benthic periphyton,
<emphasis id="13FAEC74FFDA8107FCCB52EA6C4CFF5F" box="[792,1104,196,217]" italics="true" pageId="9" pageNumber="246">
Sébastien Brosse,
<date id="553016A6FFDA8107FC1952EA6C4CFF5F" box="[970,1104,196,217]" pageId="9" pageNumber="246" value="2010-10">October 2010</date>
</emphasis>
(
<typeStatus id="FE358EC4FFDA8107FB8C52EA6CA9FF5F" box="[1119,1205,196,217]" pageId="9" pageNumber="246" type="holotype">holotype</typeStatus>
PC! 00145187, Muséum National dHistoire Naturelle de Paris, Paris, France,
<typeStatus id="FE358EC4FFDA8107FD6952C66AE3FF7B" box="[698,767,232,253]" pageId="9" pageNumber="246" type="isotype">isotype</typeStatus>
<collectionCode id="479FA8A3FFDA8107FCD052C66B59FF7B" box="[771,837,232,253]" 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="9" pageNumber="246">ANSP</collectionCode>
!
<collectionCode id="479FA8A3FFDA8107FC9D52C66B73FF7B" box="[846,879,232,253]" country="0" name="Goucher College" pageId="9" pageNumber="246">GC</collectionCode>
26826 and raw material
<collectionCode id="479FA8A3FFDA8107FB8552C66C91FF7B" box="[1110,1165,232,253]" country="Pakistan" httpUri="http://grbio.org/cool/6cg4-m6r9" name="Government College, Department of Zoology" pageId="9" pageNumber="246">GCM</collectionCode>
10312, the algae collection of the Academy of Natural Sciences, Philadelphia,
<collectingCountry id="599970F6FFDA8107FD5E53226ACCFEA7" box="[653,720,268,289]" name="United States of America" pageId="9" pageNumber="246">U.S.A.</collectingCountry>
)
</paragraph>
<paragraph id="21313066FFDA8107FF5B53646C4CFEE5" blockId="9.[136,1452,330,571]" box="[136,1104,330,355]" pageId="9" pageNumber="246">
<emphasis id="13FAEC74FFDA8107FF5B536468F8FEE5" bold="true" box="[136,228,330,355]" pageId="9" pageNumber="246">Habitat</emphasis>
:—freshwater periphyton from tropical and subtropical moist broadleaf forest.
</paragraph>
</subSubSection>
<subSubSection id="699463EDFFDA8107FF6E53406D15FE01" box="[189,1289,366,391]" pageId="9" pageNumber="246" type="etymology">
<paragraph id="21313066FFDA8107FF6E53406D15FE01" blockId="9.[136,1452,330,571]" box="[189,1289,366,391]" pageId="9" pageNumber="246">
<emphasis id="13FAEC74FFDA8107FF6E53406922FE01" bold="true" box="[189,318,366,391]" pageId="9" pageNumber="246">Etymology</emphasis>
:—in reference to the location where this species was sampled (
<emphasis id="13FAEC74FFDA8107FBDB53406C0CFE01" box="[1032,1040,366,391]" italics="true" pageId="9" pageNumber="246">i</emphasis>
.
<emphasis id="13FAEC74FFDA8107FBC453406C3FFE01" box="[1047,1059,366,391]" italics="true" pageId="9" pageNumber="246">e</emphasis>
. Itoupe Mountains).
</paragraph>
</subSubSection>
<subSubSection id="699463EDFFDA8107FF6E53BC6D02FDBD" pageId="9" pageNumber="246" type="distribution">
<paragraph id="21313066FFDA8107FF6E53BC6D02FDBD" blockId="9.[136,1452,330,571]" pageId="9" pageNumber="246">
<emphasis id="13FAEC74FFDA8107FF6E53BC69F6FE2D" bold="true" box="[189,490,402,427]" pageId="9" pageNumber="246">Distribution and ecology:</emphasis>
—the only place where
<taxonomicName id="E68E4BE5FFDA8107FD2353BC6B9CFE2D" authorityName="Tudesque &amp; Cohu &amp; Wetzel" authorityYear="2016" box="[752,896,402,427]" class="Bacillariophyceae" family="Achnanthaceae" genus="Platessa" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="9" pageNumber="246" phylum="Bacillariophyta" rank="species" species="itoupensis">
<emphasis id="13FAEC74FFDA8107FD2353BC6B1DFE2D" box="[752,769,402,427]" italics="true" pageId="9" pageNumber="246">P</emphasis>
.
<emphasis id="13FAEC74FFDA8107FCDD53BC6B9CFE2D" box="[782,896,402,427]" italics="true" pageId="9" pageNumber="246">itoupensis</emphasis>
</taxonomicName>
has been sampled is the
<typeStatus id="FE358EC4FFDA8107FB5E53BC6CA1FE2D" box="[1165,1213,402,427]" pageId="9" pageNumber="246">type</typeStatus>
locality and nowhere else to our knowledge. At the place where it was sampled, the trophic status and the saprobic degree are very low, respectively oligotrophic and oligosabrobic. The diversity of the diatom community is rather low. As example,
<taxonomicName id="E68E4BE5FFDA8107FA4053F468E6FD91" authorityName="Tudesque &amp; Cohu &amp; Wetzel" authorityYear="2016" class="Bacillariophyceae" family="Achnanthaceae" genus="Platessa" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="9" pageNumber="246" phylum="Bacillariophyta" rank="species" species="itoupensis">
<emphasis id="13FAEC74FFDA8107FA4053F46DB8FE75" box="[1427,1444,474,499]" italics="true" pageId="9" pageNumber="246">P</emphasis>
.
<emphasis id="13FAEC74FFDA8107FF5B53D068E6FD91" box="[136,250,510,535]" italics="true" pageId="9" pageNumber="246">itoupensis</emphasis>
</taxonomicName>
is accompanied by
<taxonomicName id="E68E4BE5FFDA8107FE3653D06B8EFD91" authority="Grunow" authorityName="Grunow" authorityYear="1880" box="[485,914,510,535]" class="Bacillariophyceae" family="Gomphonemaceae" genus="Gomphonema" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="9" pageNumber="246" phylum="Ochrophyta" rank="species" species="puiggarianum">
<emphasis id="13FAEC74FFDA8107FE3653D06B30FD91" box="[485,812,510,535]" italics="true" pageId="9" pageNumber="246">Gomphonema puiggarianum</emphasis>
Grunow
</taxonomicName>
in
<bibRefCitation id="451F4D97FFDA8107FC6853D06CD5FD91" author="Van Heurck, H." box="[955,1225,510,535]" pageId="9" pageNumber="246" pagination="1 - 30" refId="ref9866" refString="Van Heurck, H. (1880) Synopsis des Diatomees de Belgique. Atlas. Ducaju &amp; Cie., Anvers., pls. 1 - 30" type="book chapter" year="1880">Van Heurck (1880: 25)</bibRefCitation>
,
<taxonomicName id="E68E4BE5FFDA8107FB0B53D06A57FDBD" authority="Metzeltin &amp; Lange-Bertalot (1998: 137)" authorityName="Metzeltin &amp; Lange-Bertalot" authorityPageNumber="137" authorityYear="1998" class="Bacillariophyceae" family="Naviculaceae" genus="Luticola" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="9" pageNumber="246" phylum="Bacillariophyta" rank="species" species="frenguelli">
<emphasis id="13FAEC74FFDA8107FB0B53D06DB0FD91" box="[1240,1452,510,535]" italics="true" pageId="9" pageNumber="246">Luticola frenguelli</emphasis>
<bibRefCitation id="451F4D97FFDA8107FF5B500C6A57FDBD" author="Metzeltin, D. &amp; Lange-Bertalot, H." box="[136,587,546,571]" pageId="9" pageNumber="246" pagination="1 - 695" refId="ref8997" refString="Metzeltin, D. &amp; Lange-Bertalot, H. (1998) Tropical diatoms of South America I: About 700 predominantly rarely known or new taxa representative of the neotropical flora. Iconographia Diatomologica 5: 1 - 695." type="journal article" year="1998">Metzeltin &amp; Lange-Bertalot (1998: 137)</bibRefCitation>
</taxonomicName>
and
<taxonomicName id="E68E4BE5FFDA8107FD52500C6D06FDBD" authority="Metzeltin &amp; Lange-Bertalot (1998: 157)" authorityName="Metzeltin &amp; Lange-Bertalot" authorityPageNumber="157" authorityYear="1998" box="[641,1306,546,571]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Nupela" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="9" pageNumber="246" phylum="Ochrophyta" rank="species" species="astartiella">
<emphasis id="13FAEC74FFDA8107FD52500C6B50FDBD" box="[641,844,546,571]" italics="true" pageId="9" pageNumber="246">Nupela astartiella</emphasis>
<bibRefCitation id="451F4D97FFDA8107FC80500C6D06FDBD" author="Metzeltin, D. &amp; Lange-Bertalot, H." box="[851,1306,546,571]" pageId="9" pageNumber="246" pagination="1 - 695" refId="ref8997" refString="Metzeltin, D. &amp; Lange-Bertalot, H. (1998) Tropical diatoms of South America I: About 700 predominantly rarely known or new taxa representative of the neotropical flora. Iconographia Diatomologica 5: 1 - 695." type="journal article" year="1998">Metzeltin &amp; Lange-Bertalot (1998: 157)</bibRefCitation>
</taxonomicName>
.
</paragraph>
</subSubSection>
</treatment>
</document>

View file

@ -0,0 +1,117 @@
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<mods:title id="8153C9325BB7C9BB8FAEA8DB5E1B07D4">Two new Platessa (Bacillariophyceae) from Amazonia: Platessa guianensis spec. nov., and P. itoupensis spec. nov.</mods:title>
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<mods:affiliation id="86124F2D2392CFD36C9DBBBFF9577DB2">Laboratoire Évolution &amp; Diversité Biologique (EDB UMR 5174), Université de Toulouse, CNRS, ENFA, UPS, 118 route de Narbonne, F- 31062 Toulouse, France</mods:affiliation>
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<mods:namePart id="07C1D0DF2039FC7A9CD21A0C36A28734">Cohu, René Le</mods:namePart>
<mods:affiliation id="AF372F65A1897F96F1DDC427C317380B">Laboratoire décologie fonctionnelle et environnement (ECOLAB UMR 5245), Université de Toulouse, CNRS, ENFA, UPS, 118 route de Narbonne, F- 31062 Toulouse, France</mods:affiliation>
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<mods:namePart id="23E95A6FB6D3E4641A2FF159ADC77550">Wetzel, Carlos E.</mods:namePart>
<mods:affiliation id="4E2B0159E92BFD1519F2DBB50126DCCA">Luxembourg Institute of Science and Technology (LIST), Department Environmental Research and Innovation (ERIN), 41 rue du Brill, L- 4422 Belvaux, Luxembourg</mods:affiliation>
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<subSubSection id="699463EDFFDC8101FF5B560C6BC8FBBB" box="[136,980,1058,1085]" pageId="15" pageNumber="252" type="nomenclature">
<paragraph id="21313066FFDC8101FF5B560C6BC8FBBB" blockId="15.[136,1452,1058,1265]" box="[136,980,1058,1085]" pageId="15" pageNumber="252">
<heading id="7A79870AFFDC8101FF5B560C6BC8FBBB" bold="true" box="[136,980,1058,1085]" fontSize="11" level="1" pageId="15" pageNumber="252" reason="1">
<emphasis id="13FAEC74FFDC8101FF5B560C6BC8FBBB" bold="true" box="[136,980,1058,1085]" pageId="15" pageNumber="252">
<taxonomicName id="E68E4BE5FFDC8101FF5B560C6B56FBBB" authority="(Hustedt) C. E. Wetzel, Tudesque &amp; Le Cohu" authorityName="C. E. Wetzel, Tudesque &amp; Le Cohu" authorityYear="2016" baseAuthorityName="Hustedt" box="[136,842,1058,1085]" class="Bacillariophyceae" family="Achnanthaceae" genus="Platessa" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="15" pageNumber="252" phylum="Bacillariophyta" rank="species" species="krejcii" status="comb. nov.">
<emphasis id="13FAEC74FFDC8101FF5B560C692BFBBB" bold="true" box="[136,311,1058,1085]" italics="true" pageId="15" pageNumber="252">Platessa krejcii</emphasis>
(Hustedt) C.E.Wetzel, Tudesque &amp; Le Cohu
</taxonomicName>
,
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<emphasis id="13FAEC74FFDC8101FC84560C6B89FBBB" bold="true" box="[855,917,1058,1085]" italics="true" pageId="15" pageNumber="252">comb</emphasis>
.
<emphasis id="13FAEC74FFDC8101FC70560D6BD1FBBB" bold="true" box="[931,973,1059,1085]" italics="true" pageId="15" pageNumber="252">nov</emphasis>
.
</taxonomicNameLabel>
</emphasis>
</heading>
</paragraph>
</subSubSection>
<subSubSection id="699463EDFFDC8101FF5B56666B7AFB77" pageId="15" pageNumber="252" type="reference_group">
<paragraph id="21313066FFDC8101FF5B56666C54FB03" blockId="15.[136,1452,1058,1265]" pageId="15" pageNumber="252">
Basionym:
<treatmentCitation id="A02F1677FFDC8101FED956666C3AFBE7" author="Hustedt" box="[266,1062,1096,1121]" journal="Archiv fur Hydrobiologie" page="345" pageId="15" pageNumber="252" score="89.39136319696645" volume="43" year="1950">
<taxonomicName id="E68E4BE5FFDC8101FED956666A26FBE7" authority="Hustedt" authorityName="Hustedt" authorityYear="1950" box="[266,570,1096,1121]" class="Bacillariophyceae" family="Achnanthaceae" genus="Achnanthes" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="15" pageNumber="252" phylum="Bacillariophyta" rank="species" species="krejcii">
<emphasis id="13FAEC74FFDC8101FED9566669C0FBE7" box="[266,476,1096,1121]" italics="true" pageId="15" pageNumber="252">Achnanthes krejcii</emphasis>
Hustedt
</taxonomicName>
in
<bibCitation id="F4A4380AFFDC8101FDB256666C3AFBE7" box="[609,1062,1096,1121]" journal="Archiv fur Hydrobiologie" page="345" pageId="15" pageNumber="252" score="89.39136319696645" volume="43" year="1950">
<emphasis id="13FAEC74FFDC8101FDB256666B61FBE7" box="[609,893,1096,1121]" italics="true" pageId="15" pageNumber="252">Archiv für Hydrobiologie</emphasis>
43: 345. 1950
</bibCitation>
</treatmentCitation>
. Illustrated by Hustedt in Schmidt (1937), pl. 409, figs 4451 and by Simonsen in
<bibRefCitation id="451F4D97FFDC8101FD4C56426B7DFB03" author="Simonsen, R." box="[671,865,1132,1157]" pageId="15" pageNumber="252" refId="ref9720" refString="Simonsen, R. (1987) Atlas and catalogue of the diatom types of Friedrich Hustedt. J. Cramer, Berlin / Stuttgart." type="book" year="1987">Simonsen (1987)</bibRefCitation>
, pl. 334, figs 2634.
</paragraph>
<paragraph id="21313066FFDC8101FF6E56BE6B7AFB77" blockId="15.[136,1452,1058,1265]" pageId="15" pageNumber="252">
Described as a fossil species from
<collectingCountry id="599970F6FFDC8101FD9456BE6AB0FB2F" box="[583,684,1168,1193]" name="Romania" pageId="15" pageNumber="252">Romania</collectingCountry>
(
<bibRefCitation id="451F4D97FFDC8101FD6F56BE6B45FB2F" author="Hustedt, F." box="[700,857,1168,1193]" pageId="15" pageNumber="252" pagination="329 - 458" refId="ref8277" refString="Hustedt, F. (1950) Die Diatomeenflora norddeutscher Seen mit besonderer Berucksichtigung des holsteinischen Seengebiets V-VII. Seen in Mecklenburg, Lauenburg und Nordostdeutschland. Archiv fur Hydrobiologie 43: 329 - 458." type="journal article" year="1950">Hustedt 1950</bibRefCitation>
),
<taxonomicName id="E68E4BE5FFDC8101FCBE56BE6BC8FB2F" authorityName="Hustedt" authorityYear="1950" box="[877,980,1168,1193]" class="Bacillariophyceae" family="Achnanthaceae" genus="Achnanthes" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="15" pageNumber="252" phylum="Bacillariophyta" rank="species" species="krejcii">
<emphasis id="13FAEC74FFDC8101FCBE56BE6B62FB2F" box="[877,894,1168,1193]" italics="true" pageId="15" pageNumber="252">P</emphasis>
.
<emphasis id="13FAEC74FFDC8101FC5E56BE6BC8FB2F" box="[909,980,1168,1193]" italics="true" pageId="15" pageNumber="252">krejcii</emphasis>
</taxonomicName>
shows similarities with the also subfossil North American species
<taxonomicName id="E68E4BE5FFDC8101FE40569A6C79FB4B" authority="Enache, Potapova &amp; E. Morales (2014: 240)" authorityName="Enache, Potapova &amp; E. A. Morales" authorityPageNumber="240" authorityYear="2014" box="[403,1125,1204,1229]" class="Bacillariophyceae" family="Achnanthaceae" genus="Platessa" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="15" pageNumber="252" phylum="Bacillariophyta" rank="species" species="strelnikovae">
<emphasis id="13FAEC74FFDC8101FE40569A6A62FB4B" box="[403,638,1204,1229]" italics="true" pageId="15" pageNumber="252">Platessa strelnikovae</emphasis>
Enache, Potapova &amp; E. Morales (2014: 240)
</taxonomicName>
.The only known microscopic images of this species are the ones provided by
<bibRefCitation id="451F4D97FFDC8101FD4D56F66B7DFB77" author="Simonsen, R." box="[670,865,1240,1265]" pageId="15" pageNumber="252" refId="ref9720" refString="Simonsen, R. (1987) Atlas and catalogue of the diatom types of Friedrich Hustedt. J. Cramer, Berlin / Stuttgart." type="book" year="1987">Simonsen (1987)</bibRefCitation>
.
</paragraph>
</subSubSection>
</treatment>
</document>

View file

@ -0,0 +1,182 @@
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<taxonomicName id="E6EF4D0094065C77FF3EFCE2FD83FCA4" authority="K. Das &amp; K. Acharya" authorityName="K. Das &amp; K. Acharya" authorityYear="2016" box="[136,606,795,823]" class="Sordariomycetes" family="Cordycipitaceae" genus="Ramaria" kingdom="Fungi" order="Hypocreales" pageId="2" pageNumber="139" phylum="Ascomycota" rank="species" species="subalpina" status="sp. nov.">
<emphasis id="139BEA9194065C77FF3EFCE2FEBBFCA5" bold="true" box="[136,358,795,822]" italics="true" pageId="2" pageNumber="139">Ramaria subalpina</emphasis>
K. Das &amp; K. Acharya
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<figureCitation id="B9D42A0694065C77FD76FCE0FCF4FCA4" box="[704,809,798,823]" captionStart="FIGURE 1" captionStartId="3.[136,229,1966,1987]" captionTargetBox="[151,1436,353,1940]" captionTargetId="figure-87@3.[151,1436,353,1940]" captionTargetPageId="3" captionText="FIGURE 1. Ramaria subalpina sp. nov. (KD 14-006, Holotype) A. Fresh basidiomata; B &amp; D. Basidiomata showing blood red to brownish red ultimate branchlet; C. Stipe-base of basidiomata becoming blood red on bruising; E. Basidiospores; F. SEM images of basidiospores. Scale bars: B=20 mm; E=10 μm; F=5 μm." figureDoi="http://doi.org/10.5281/zenodo.13676933" httpUri="https://zenodo.org/record/13676933/files/figure.png" pageId="2" pageNumber="139">Figures 1</figureCitation>
&amp;
<figureCitation id="B9D42A0694065C77FCFBFCE0FC86FCA4" box="[845,859,798,823]" captionStart="FIGURE 2" captionStartId="4.[136,229,1514,1535]" captionTargetBox="[174,1423,198,1478]" captionTargetId="figure-19@4.[164,1423,190,1488]" captionTargetPageId="4" captionText="FIGURE 2. Ramaria subalpina sp. nov. (from KD 14-006, Holotype). A. Basidiospores; B. Basidium and Basidioles; C. Tramal hyphae from basal region; D. Tramal hyphae from branches. Scale bars: AD=10 μm." figureDoi="http://doi.org/10.5281/zenodo.13676937" httpUri="https://zenodo.org/record/13676937/files/figure.png" pageId="2" pageNumber="139">2</figureCitation>
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<paragraph id="2150368394065C77FF3EFCBAFEA2FCCA" blockId="2.[136,1452,836,1073]" box="[136,383,836,857]" pageId="2" pageNumber="139">MycoBank:—MB814581</paragraph>
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Diagnosis:—Basidiomata 120135 ×
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, solitary to gregarious, habitat on the ground, stipe-surface becoming blood red at base on bruising, ultimate branch tips brownish red to violet brown, generative hyphae rarely clamped, basidiospores 10.515 × 46 μm, ellipsoid or elongate, minute to distinctly verrucose.
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:—
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.
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, alt.
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,
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22
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July 2014
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,
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. Das, KD-14-006 (
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,
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Etymology:—refers to the subalpine region of
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, the
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locality
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Basidiomata 120135 ×
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, annual, gregarious to solitary, erect, obpyramidal to subcylindrical in outline, large, laterally profuse. Stipe 1525 ×
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, represented by thick embedded (rudimentary) base, fleshy and moist when fresh, light and brittle on drying, smooth, glabrous, pastel yellow (3A4) when fresh and ochraceous to ochrebrown on drying, internal flesh chalky white, basal part blood red near the surface when bruised and/or after maturity. Branches in 56 ranks, dichotomously throughout, pastel yellow (3A4) when young, becoming paler with maturity or heavy rain; primary branch
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numbers,
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wide ascending to flaring, pale yellow to ochraceous; ultimate branchlet
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long, dichotomous, compact and appear as cauliflower like; apices blunt, subacute to acute, pale yellow when young, becoming blood red or brownish red to violet brown (10D710E7) after bruising or at maturity. Taste mild, odor fungoid. Context chalky opaque, turning slightly greenish with FeSO
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, chalky white with Guaiacol but, remains unchanging with KOH.
</paragraph>
<paragraph id="2150368394065C77FF0BFA34FEDCF94C" blockId="2.[136,1452,1122,2083]" pageId="2" pageNumber="139">Hyphal system monomitic, generative hyphae frequently septate, rarely clamped, branched, smooth, hyaline; basal region tramal hyphae 25 μm wide and inflated to 7 μm, branched, thin-walled, parallel and compactly arranged, hyaline; tramal hyphae of branches 2.56 μm wide and inflated to 14 μm, compactly interwoven, unbranched (mostly), thin-walled, hyaline. Hymenium throughout the basidiomata. Basidioles 3060 × 710 μm, elongate clavate, smooth, hyaline. Basidia 3565 × 813 μm, elongate clavate, few appeared clamped at base but septate mostly, multiguttulate, 4-sterigmate, sterigmata 26 μm long and erect, hyaline. Basidiospores 10.5(12.2)15 × 4(5.2)6 μm, ellipsoid or elongate, minute to distinctly verrucose, apiculate (to 2 μm long), one to multiguttulate, pale yellow, non cyanophilic, inamyloid.</paragraph>
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Habitat: Growing solitary to gregariously under
<taxonomicName id="E6EF4D0094065C77FD6DF914FC7AF890" authority="Griff." authorityName="Griff." box="[731,935,1770,1795]" class="Pinopsida" family="Pinaceae" genus="Abies" kingdom="Plantae" order="Pinales" pageId="2" pageNumber="139" phylum="Tracheophyta" rank="species" species="densa">
<emphasis id="139BEA9194065C77FD6DF914FCBCF890" box="[731,865,1770,1795]" italics="true" pageId="2" pageNumber="139">Abies densa</emphasis>
Griff.
</taxonomicName>
in subalpine mixed forest.
</paragraph>
<paragraph id="2150368394065C77FF0BF8F0FE6BF8B4" blockId="2.[136,1452,1122,2083]" box="[189,438,1806,1831]" pageId="2" pageNumber="139">Molecular phylogeny:</paragraph>
<paragraph id="2150368394065C76FF0BF8CCFF33FEDA" blockId="2.[136,1452,1122,2083]" lastBlockId="3.[136,1452,158,329]" lastPageId="3" lastPageNumber="140" pageId="2" pageNumber="139">
Phylogenetic analyses were performed based on ITS dataset. Sequencing products of the newly described species ranged 625 nucleotides. All sequences were aligned and the ends trimmed to create a dataset of 688 nucleotides that included 289 parsimony informative characters. Each of the ML analysis iterations recovered a single tree, the likelihood values of which did not differ significantly. We have selected the topology resulting from the first iteration to present here (
<figureCitation id="B9D42A0694065C77FE8CF83CFE41F848" box="[314,412,1986,2011]" captionStart="FIGURE 3" captionStartId="5.[136,229,1206,1227]" captionTargetBox="[155,1436,320,1174]" captionTargetId="figure-80@5.[151,1436,317,1181]" captionTargetPageId="5" captionText="FIGURE 3. Maximum likelihood tree (-lnL = 2712.3965) generated using a GTR+I+G model of nucleotide evolution. Numbers to the left of / are MP bootstrap support (MPBS), and those to the right indicate the Maximum likelihood bootstrap (MLBS) support (in bold). MLBS and MPBS values ≥ 70% are shown. Bayesian posterior probabilities (PP)&gt; 0.95 are indicated as black coloured thickened lines and the scale bar represents the expected changes per site. Ramaria subalpina is placed in bold font to highlight its phylogenetic position in the tree." figureDoi="http://doi.org/10.5281/zenodo.13676941" httpUri="https://zenodo.org/record/13676941/files/figure.png" pageId="2" pageNumber="139">Figure 3</figureCitation>
; -ln
<emphasis id="139BEA9194065C77FE71F83CFE0AF848" box="[455,471,1986,2011]" italics="true" pageId="2" pageNumber="139">L</emphasis>
= 2712.3965). Parsimony analyses produced most parsimonious tree with length = 550, Consistency Index (CI) = 0.515267, Retention Index (RI) = 0.700472, Composite Index = 0.376981 (0.360930), did not differ significantly in topology from those recovered in the ML analyses. Bayesian analyses reached a standard deviation of split frequencies of 0.005 after
<superScript id="D69A9BCB94075C76FDC0FF5EFD47FF3F" attach="left" box="[630,666,158,185]" fontSize="6" pageId="3" pageNumber="140">106</superScript>
generations, and the initial 25% trees recovered were excluded as the burn-in. Maximum likelihood bootstrap values (BS) and Bayesian posterior probabilities (PP) support many of the terminal nodes in the phylogeny, but fail to recover the deeper nodes with strong support. Accession numbers of newly generated ITS sequence (KT824242), as well as those pulled from GenBank and UNITE databases, are presented in
<figureCitation id="B9D42A0694075C76FF3EFECEFF35FEDA" box="[136,232,304,329]" captionStart="FIGURE 3" captionStartId="5.[136,229,1206,1227]" captionTargetBox="[155,1436,320,1174]" captionTargetId="figure-80@5.[151,1436,317,1181]" captionTargetPageId="5" captionText="FIGURE 3. Maximum likelihood tree (-lnL = 2712.3965) generated using a GTR+I+G model of nucleotide evolution. Numbers to the left of / are MP bootstrap support (MPBS), and those to the right indicate the Maximum likelihood bootstrap (MLBS) support (in bold). MLBS and MPBS values ≥ 70% are shown. Bayesian posterior probabilities (PP)&gt; 0.95 are indicated as black coloured thickened lines and the scale bar represents the expected changes per site. Ramaria subalpina is placed in bold font to highlight its phylogenetic position in the tree." figureDoi="http://doi.org/10.5281/zenodo.13676941" httpUri="https://zenodo.org/record/13676941/files/figure.png" pageId="3" pageNumber="140">Figure 3</figureCitation>
.
</paragraph>
</subSubSection>
</treatment>
</document>