238 lines
39 KiB
XML
238 lines
39 KiB
XML
<document id="BDE4FA6789FED4FB7FD0159BF75DD714" ID-DOI="10.11646/phytotaxa.172.2.2" ID-ISSN="1179-3163" ID-Zenodo-Dep="5142351" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" checkinTime="1627483809772" checkinUser="felipe" docAuthor="Sterrenburg, Frithjof A. S., Haan, Myriam De, Herwig, Wulf E. & Hargraves, Paul E." docDate="2014" docId="03F987BC650DFFC3FF18B006FBD2FCB5" docLanguage="en" docName="Phytotaxa.172.2.071-080.pdf" docOrigin="Phytotaxa 172 (2)" docSource="http://dx.doi.org/10.11646/phytotaxa.172.2.2" docStyle="DocumentStyle:96748F8F1B6C902996E134952A3A36B9.7:Phytotaxa.2014-.journal_article" docStyleId="96748F8F1B6C902996E134952A3A36B9" docStyleName="Phytotaxa.2014-.journal_article" docStyleVersion="7" docTitle="Gyrosigma tenuissimum var. gundulae Hargraves & Sterrenburg 2014, var. nov." docType="treatment" docVersion="3" lastPageNumber="78" masterDocId="FFC0FFC46508FFC4FF90B73CFFE4FFD1" masterDocTitle="Typification and taxonomy of Gyrosigma tenuissimum (W. Sm.) J. W. Griffith & Henfr., comparison with Gyrosigma coelophilum N. Okamoto & Nagumo and description of two new taxa: Gyrosigma tenuissimum var. gundulae var. nov. and Gyrosigma baculum sp. nov. (Pleurosigmataceae, Bacillariophyta)" masterLastPageNumber="80" masterPageNumber="71" pageNumber="76" updateTime="1699026049815" updateUser="plazi" zenodo-license-figures="UNSPECIFIED" zenodo-license-treatments="UNSPECIFIED">
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<mods:title id="79019CA42E0A78ED13F335523DE72A20">Typification and taxonomy of Gyrosigma tenuissimum (W. Sm.) J. W. Griffith & Henfr., comparison with Gyrosigma coelophilum N. Okamoto & Nagumo and description of two new taxa: Gyrosigma tenuissimum var. gundulae var. nov. and Gyrosigma baculum sp. nov. (Pleurosigmataceae, Bacillariophyta)</mods:title>
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<mods:name id="BED34B2109159AFC4B67B80F6EC87F7F" type="personal">
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<mods:roleTerm id="8C38324AAB6A3032ED22BFFF9D9792D4">Author</mods:roleTerm>
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<mods:namePart id="3AF4E9CC93F85F7DD09B3F75D2641F89">Sterrenburg, Frithjof A. S.</mods:namePart>
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<mods:affiliation id="0886EE57175BB1462895A1375480F2D0">Stationsweg 158, Heiloo, The Netherlands. E-mail: fass @ wxs. nl (corresponding author)</mods:affiliation>
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<mods:roleTerm id="9B890F27B849874597B58A27C056BED5">Author</mods:roleTerm>
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<mods:namePart id="42F9562D49E847579C72D6D4071C3FE2">Haan, Myriam De</mods:namePart>
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<mods:affiliation id="2784A5532656C4F4E5B880B6CC2981AA">Botanic Garden Meise, Dept. Bryophytes - Thallophytes, Nieuwelaan 38, BE- 1860 Meise, Belgium. E-mail: myriam. dehaan @ br. fgov. be</mods:affiliation>
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<mods:name id="7BCABEA66BB27EE284C5FA9159848BC7" type="personal">
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<mods:roleTerm id="0367EB047F626758695A51C72098DF8A">Author</mods:roleTerm>
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<mods:namePart id="E13D9C3F576D4AF11435DC71B3555818">Herwig, Wulf E.</mods:namePart>
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<mods:affiliation id="767B0FD2E69A3A379C6EA60691E806D8">Freidingstrasse 11, 30559 Hannover, Germany. E-mail: WEHerwig @ arcor. de</mods:affiliation>
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<mods:namePart id="DADD09DC8D4E68D1872FA8DBC1496438">Hargraves, Paul E.</mods:namePart>
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<mods:affiliation id="4F99BA5BFC826D0911496651AC6C942C">Affiliate Research Professor, Harbor Branch Oceanographic Institute, Florida Atlantic University and Research Associate, Smithsonian Institution Marine Station, Ft. Pierce, Florida, USA. E-mail: Dr. Pharg @ gmail. com</mods:affiliation>
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<mods:title id="337EC8F99060FC1470F0E8E27A7DE9A4">Phytotaxa</mods:title>
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<mods:part id="47238A0A7E1426FC9F8453F72BFCF3C1">
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<mods:date id="A6BA94ED08DE8112FE164BA809C2DE8E">2014</mods:date>
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<mods:number id="C11166B2514642CB372AD354DD408DBA">2014-06-13</mods:number>
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<mods:number id="100E276E7AF702168C73A57E29655D1C">172</mods:number>
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<mods:start id="1A51D18358CD4841737230F6710730AB">71</mods:start>
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<mods:url id="BE6B1BFCFEB45B1B35E8C10F1E27D708">http://dx.doi.org/10.11646/phytotaxa.172.2.2</mods:url>
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<mods:classification id="664605078C8A81723867FFD8071C774F">journal article</mods:classification>
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<mods:identifier id="308ACD6BE56BDCA38060008076440FA9" type="DOI">10.11646/phytotaxa.172.2.2</mods:identifier>
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<mods:identifier id="0DC87B125FB7794A2E848DCCBD6A70BB" type="ISSN">1179-3163</mods:identifier>
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<treatment id="03F987BC650DFFC3FF18B006FBD2FCB5" ID-DOI="http://doi.org/10.5281/zenodo.5151177" ID-Zenodo-Dep="5151177" LSID="urn:lsid:plazi:treatment:03F987BC650DFFC3FF18B006FBD2FCB5" httpUri="http://treatment.plazi.org/id/03F987BC650DFFC3FF18B006FBD2FCB5" lastPageId="7" lastPageNumber="78" pageId="5" pageNumber="76">
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<subSubSection id="C34A6521650DFFC1FF18B006FD82F84D" pageId="5" pageNumber="76" type="nomenclature">
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<paragraph id="8BEF36AA650DFFC1FF18B006FB83F884" blockId="5.[136,1127,1850,1877]" box="[136,1127,1850,1877]" pageId="5" pageNumber="76">
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<heading id="D0A781C6650DFFC1FF18B006FB83F884" box="[136,1127,1850,1877]" fontSize="11" level="2" pageId="5" pageNumber="76" reason="3">
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<taxonomicName id="4C504D29650DFFC1FF18B006FC8CF885" authority="Hargraves & Sterrenburg" authorityName="Hargraves & Sterrenburg" authorityYear="2014" box="[136,872,1850,1877]" class="Bacillariophyceae" family="Pleurosigmataceae" genus="Gyrosigma" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="5" pageNumber="76" phylum="Bacillariophyta" rank="variety" species="tenuissimum" status="var. nov." variety="gundulae">
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<emphasis id="B924EAB8650DFFC1FF18B006FDA3F884" bold="true" box="[136,583,1850,1877]" italics="true" pageId="5" pageNumber="76">Gyrosigma tenuissimum var. gundulae</emphasis>
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Hargraves & Sterrenburg
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<taxonomicNameLabel id="A21757C3650DFFC1FCFFB007FC34F884" box="[879,976,1851,1877]" pageId="5" pageNumber="76" rank="variety">
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var.
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<emphasis id="B924EAB8650DFFC1FC30B007FC34F884" box="[928,976,1851,1877]" italics="true" pageId="5" pageNumber="76">nov.</emphasis>
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</taxonomicNameLabel>
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(
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<figureCitation id="136B2A2F650DFFC1FC4FB006FBBBF884" box="[991,1119,1850,1877]" captionStart="FIGURES 28–36" captionStartId="6.[136,243,1734,1756]" captionTargetBox="[255,1332,195,1687]" captionTargetId="figure-22@6.[250,1338,190,1713]" captionTargetPageId="6" captionText="FIGURES 28–36. Gyrosigma tenuissimum var. gundulae, type material. Figures 28, 30, 31. LM images. Fig. 28. Holotype, general view. Stitch of 5 stacks of 15–20 images each. Bar = 30 µm. Fig. 30. Enlargement showing centre, note resolution of vestigial (upper) and continuous (lower) central bars. Bar = 1 µm. Fig. 31. Apex showing irregular striation. Bar = 3 µm. Figures 29, 32–36. SEM images. Fig.29. General view. Bar = 30 µm. Fig. 32. Apex, external view. Arrow indicates small accessory pore. Bar = 3 µm. Fig. 33. Centre, external view. Bar = 3 µm. Inset: 1.5x enlargement of Fig. 33 showing overlapping central raphe fissures. Fig. 34. Apex, internal view. Bar = 3 µm. Fig 35. Centre, internal view. Note sideways twisting of raphe fissures. Bar = 3 µm. Inset: 1.5x enlargement showing vestigial central bars. Fig. 36. Vestigial central bars of another specimen. Bar = 1.5 µm." figureDoi="http://doi.org/10.5281/zenodo.5142357" httpUri="https://zenodo.org/record/5142357/files/figure.png" pageId="5" pageNumber="76">Figs 28–36</figureCitation>
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)
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</heading>
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</paragraph>
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<paragraph id="8BEF36AA650DFFC1FF18B0BAFD82F84D" blockId="5.[136,1451,1926,2020]" box="[136,614,1926,1948]" pageId="5" pageNumber="76">As the species, but valves larger and more robust.</paragraph>
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</subSubSection>
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<subSubSection id="C34A6521650DFFC3FF18B096FEFFFE2C" lastPageId="7" lastPageNumber="78" pageId="5" pageNumber="76" type="materials_examined">
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<paragraph id="8BEF36AA650DFFC1FF18B096FD91F832" blockId="5.[136,1451,1926,2020]" pageId="5" pageNumber="76">
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||
<emphasis id="B924EAB8650DFFC1FF18B096FF5EF86E" bold="true" box="[136,186,1962,1983]" pageId="5" pageNumber="76">Type</emphasis>
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:—
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<materialsCitation id="3B383CF7650DFFC1FF48B096FD8BF835" collectionCode="BRM" country="United States of America" county="Indian River Lagoon" latitude="-10.0" location="River Lagoon" longLatPrecision="7797" longitude="6.7" municipality="Indian River" pageId="5" pageNumber="76" specimenCode="ZU 8" specimenCount="1" stateProvince="Florida" typeStatus="holotype">
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<collectingCountry id="F347763A650DFFC1FF48B096FEE8F86E" box="[216,268,1962,1983]" name="United States of America" pageId="5" pageNumber="76">USA</collectingCountry>
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.
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<collectingCounty id="628E4E26650DFFC1FE85B096FE04F86E" box="[277,480,1962,1984]" pageId="5" pageNumber="76">
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<collectingMunicipality id="6B8BACD0650DFFC1FE85B096FE6AF811" box="[277,398,1962,1984]" pageId="5" pageNumber="76">
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Indian
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<location id="8E8F6071650DFFC1FEC9B096FE6AF811" LSID="urn:lsid:plazi:treatment:03F987BC650DFFC3FF18B006FBD2FCB5:8E8F6071650DFFC1FEC9B096FE6AF811" box="[345,398,1962,1984]" country="United States of America" county="Indian River Lagoon" latitude="-10.0" longLatPrecision="7797" longitude="6.7" municipality="Indian River" name="River" pageId="5" pageNumber="76" stateProvince="Florida">River</location>
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</collectingMunicipality>
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Lagoon
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</collectingCounty>
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||
,
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<collectingRegion id="4994F848650DFFC1FE7AB096FDCBF811" box="[490,559,1962,1984]" country="United States of America" name="Florida" pageId="5" pageNumber="76">Florida</collectingRegion>
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(
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||
<collectionCode id="ED41AE6F650DFFC1FDACB096FD97F86E" box="[572,627,1962,1983]" country="Germany" httpUri="http://biocol.org/urn:lsid:biocol.org:col:14903" lsid="urn:lsid:biocol.org:col:14903" name="Alfred-Wegener-Institut für Polar- und Meeresforschung" pageId="5" pageNumber="76" type="Herbarium">BRM</collectionCode>
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<specimenCode id="DBF69ED1650DFFC1FDE9B096FD4EF86E" box="[633,682,1962,1983]" collectionCode="BRM" country="Germany" httpUri="http://biocol.org/urn:lsid:biocol.org:col:14903" lsid="urn:lsid:biocol.org:col:14903" name="Alfred-Wegener-Institut für Polar- und Meeresforschung" pageId="5" pageNumber="76" type="Herbarium">ZU 8</specimenCode>
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||
/74!
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<typeStatus id="54EB8808650DFFC1FD48B096FCC8F811" box="[728,812,1962,1984]" pageId="5" pageNumber="76" type="holotype">holotype</typeStatus>
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||
= fig. 28, coordinates
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||
<geoCoordinate id="EE64506D650DFFC1FB96B096FBB2F86E" box="[1030,1110,1962,1984]" degrees="6.7" direction="east" orientation="longitude" pageId="5" pageNumber="76" precision="5555" value="6.7">6.7 East</geoCoordinate>
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,
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||
<geoCoordinate id="EE64506D650DFFC1FBCFB096FB2EF811" box="[1119,1226,1962,1984]" degrees="10.0" direction="south" orientation="latitude" pageId="5" pageNumber="76" precision="5555" value="-10.0">10.0 South</geoCoordinate>
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||
; collection
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||
<taxonomicName id="4C504D29650DFFC1FAA9B096FA4FF86E" authority="Sterrenburg & Haan & Herwig & Hargraves, 2014" authorityName="Sterrenburg & Haan & Herwig & Hargraves" authorityYear="2014" box="[1337,1451,1962,1983]" pageId="5" pageNumber="76" rank="variety" status="var. nov." variety="sterrenburg">
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||
<emphasis id="B924EAB8650DFFC1FAA9B096FA4FF86E" box="[1337,1451,1962,1983]" italics="true" pageId="5" pageNumber="76">Sterrenburg</emphasis>
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||
</taxonomicName>
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||
#721, isotype; collection
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||
<emphasis id="B924EAB8650DFFC1FE20B0F2FDF2F832" box="[432,534,1998,2019]" italics="true" pageId="5" pageNumber="76">Hargraves</emphasis>
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||
, isotype)
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||
</materialsCitation>
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||
.
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||
</paragraph>
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||
<caption id="DF2F6622650EFFC2FF18B1FAFC9CF82D" ID-DOI="http://doi.org/10.5281/zenodo.5142357" ID-Zenodo-Dep="5142357" httpUri="https://zenodo.org/record/5142357/files/figure.png" pageId="6" pageNumber="77" startId="6.[136,243,1734,1756]" targetBox="[255,1332,195,1687]" targetPageId="6">
|
||
<paragraph id="8BEF36AA650EFFC2FF18B1FAFCA6F90C" blockId="6.[136,1452,1734,2045]" box="[136,834,1734,1757]" pageId="6" pageNumber="77">
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||
<emphasis id="B924EAB8650EFFC2FF18B1FAFEDEF90D" bold="true" box="[136,314,1734,1756]" pageId="6" pageNumber="77">FIGURES 28–36.</emphasis>
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||
<emphasis id="B924EAB8650EFFC2FED1B1FBFD5CF90D" box="[321,696,1735,1756]" italics="true" pageId="6" pageNumber="77">
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||
<taxonomicName id="4C504D29650EFFC2FED1B1FBFD50F90D" authorityName="Hargraves & Sterrenburg" authorityYear="2014" box="[321,692,1735,1756]" class="Bacillariophyceae" family="Pleurosigmataceae" genus="Gyrosigma" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="6" pageNumber="77" phylum="Bacillariophyta" rank="variety" species="tenuissimum" variety="gundulae">Gyrosigma tenuissimum var. gundulae</taxonomicName>
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||
,
|
||
</emphasis>
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||
type material.
|
||
</paragraph>
|
||
<paragraph id="8BEF36AA650EFFC2FF18B1D6FE58F8D0" blockId="6.[136,1452,1734,2045]" box="[136,444,1770,1793]" pageId="6" pageNumber="77">
|
||
<emphasis id="B924EAB8650EFFC2FF18B1D6FEA5F8D1" bold="true" box="[136,321,1770,1792]" pageId="6" pageNumber="77">Figures 28, 30, 31.</emphasis>
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||
LM images.
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||
</paragraph>
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||
<paragraph id="8BEF36AA650EFFC2FF18B033FA6BF899" blockId="6.[136,1452,1734,2045]" pageId="6" pageNumber="77">Fig. 28. Holotype, general view. Stitch of 5 stacks of 15–20 images each. Bar = 30 µm. Fig. 30. Enlargement showing centre, note resolution of vestigial (upper) and continuous (lower) central bars. Bar = 1 µm. Fig. 31. Apex showing irregular striation. Bar = 3 µm.</paragraph>
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||
<paragraph id="8BEF36AA650EFFC2FF18B06AFE2DF8BC" blockId="6.[136,1452,1734,2045]" box="[136,457,1878,1901]" pageId="6" pageNumber="77">
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||
<emphasis id="B924EAB8650EFFC2FF18B06AFEA5F8BD" bold="true" box="[136,321,1878,1900]" pageId="6" pageNumber="77">Figures 29, 32–36.</emphasis>
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||
SEM images.
|
||
</paragraph>
|
||
<paragraph id="8BEF36AA650EFFC2FF18B047FC9CF82D" blockId="6.[136,1452,1734,2045]" pageId="6" pageNumber="77">Fig.29. General view. Bar = 30 µm. Fig. 32. Apex, external view. Arrow indicates small accessory pore. Bar = 3 µm. Fig. 33. Centre, external view. Bar = 3 µm. Inset: 1.5x enlargement of Fig. 33 showing overlapping central raphe fissures. Fig. 34. Apex, internal view. Bar = 3 µm. Fig 35. Centre, internal view. Note sideways twisting of raphe fissures. Bar = 3 µm. Inset: 1.5x enlargement showing vestigial central bars. Fig. 36. Vestigial central bars of another specimen. Bar = 1.5 µm.</paragraph>
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||
</caption>
|
||
<paragraph id="8BEF36AA650FFFC3FF18B7A2FB20FE98" blockId="7.[136,1452,158,869]" pageId="7" pageNumber="78">
|
||
As
|
||
<taxonomicName id="4C504D29650FFFC3FF3FB7A3FEBBFF69" authorityName="Cleve" authorityYear="1894" baseAuthorityName="W. Sm." box="[175,351,159,185]" class="Bacillariophyceae" family="Pleurosigmataceae" genus="Gyrosigma" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="7" pageNumber="78" phylum="Bacillariophyta" rank="species" species="tenuissimum">
|
||
<emphasis id="B924EAB8650FFFC3FF3FB7A3FEBBFF69" box="[175,351,159,185]" italics="true" pageId="7" pageNumber="78">G. tenuissimum</emphasis>
|
||
</taxonomicName>
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||
, with comparable striation (
|
||
<figureCitation id="136B2A2F650FFFC3FD0FB7A2FCF9FF69" box="[671,797,158,184]" captionStart="FIGURES 28–36" captionStartId="6.[136,243,1734,1756]" captionTargetBox="[255,1332,195,1687]" captionTargetId="figure-22@6.[250,1338,190,1713]" captionTargetPageId="6" captionText="FIGURES 28–36. Gyrosigma tenuissimum var. gundulae, type material. Figures 28, 30, 31. LM images. Fig. 28. Holotype, general view. Stitch of 5 stacks of 15–20 images each. Bar = 30 µm. Fig. 30. Enlargement showing centre, note resolution of vestigial (upper) and continuous (lower) central bars. Bar = 1 µm. Fig. 31. Apex showing irregular striation. Bar = 3 µm. Figures 29, 32–36. SEM images. Fig.29. General view. Bar = 30 µm. Fig. 32. Apex, external view. Arrow indicates small accessory pore. Bar = 3 µm. Fig. 33. Centre, external view. Bar = 3 µm. Inset: 1.5x enlargement of Fig. 33 showing overlapping central raphe fissures. Fig. 34. Apex, internal view. Bar = 3 µm. Fig 35. Centre, internal view. Note sideways twisting of raphe fissures. Bar = 3 µm. Inset: 1.5x enlargement showing vestigial central bars. Fig. 36. Vestigial central bars of another specimen. Bar = 1.5 µm." figureDoi="http://doi.org/10.5281/zenodo.5142357" httpUri="https://zenodo.org/record/5142357/files/figure.png" pageId="7" pageNumber="78">Fig. 28, 30</figureCitation>
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) but much more robust and larger: 159–190 µm long and 9.5–11 µm wide. With respect to
|
||
<taxonomicName id="4C504D29650FFFC3FD93B7FFFC93FF0D" authority="var. tenuissimum" box="[515,887,195,221]" class="Bacillariophyceae" family="Pleurosigmataceae" genus="Gyrosigma" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="7" pageNumber="78" phylum="Bacillariophyta" rank="variety" species="tenuissimum" variety="tenuissimum">
|
||
<emphasis id="B924EAB8650FFFC3FD93B7FFFD56FF0D" box="[515,690,195,221]" italics="true" pageId="7" pageNumber="78">G. tenuissimum</emphasis>
|
||
var.
|
||
<emphasis id="B924EAB8650FFFC3FD7BB7FFFC93FF0D" box="[747,887,195,220]" italics="true" pageId="7" pageNumber="78">tenuissimum</emphasis>
|
||
</taxonomicName>
|
||
, valve much broader at apices (
|
||
<figureCitation id="136B2A2F650FFFC3FB70B7FEFA80FF0D" box="[1248,1380,194,220]" captionStart="FIGURES 28–36" captionStartId="6.[136,243,1734,1756]" captionTargetBox="[255,1332,195,1687]" captionTargetId="figure-22@6.[250,1338,190,1713]" captionTargetPageId="6" captionText="FIGURES 28–36. Gyrosigma tenuissimum var. gundulae, type material. Figures 28, 30, 31. LM images. Fig. 28. Holotype, general view. Stitch of 5 stacks of 15–20 images each. Bar = 30 µm. Fig. 30. Enlargement showing centre, note resolution of vestigial (upper) and continuous (lower) central bars. Bar = 1 µm. Fig. 31. Apex showing irregular striation. Bar = 3 µm. Figures 29, 32–36. SEM images. Fig.29. General view. Bar = 30 µm. Fig. 32. Apex, external view. Arrow indicates small accessory pore. Bar = 3 µm. Fig. 33. Centre, external view. Bar = 3 µm. Inset: 1.5x enlargement of Fig. 33 showing overlapping central raphe fissures. Fig. 34. Apex, internal view. Bar = 3 µm. Fig 35. Centre, internal view. Note sideways twisting of raphe fissures. Bar = 3 µm. Inset: 1.5x enlargement showing vestigial central bars. Fig. 36. Vestigial central bars of another specimen. Bar = 1.5 µm." figureDoi="http://doi.org/10.5281/zenodo.5142357" httpUri="https://zenodo.org/record/5142357/files/figure.png" pageId="7" pageNumber="78">Figs 32, 34</figureCitation>
|
||
), with presence of small accessory apical pore (
|
||
<figureCitation id="136B2A2F650FFFC3FDCDB7DAFD56FED1" box="[605,690,230,256]" captionStart="FIGURES 28–36" captionStartId="6.[136,243,1734,1756]" captionTargetBox="[255,1332,195,1687]" captionTargetId="figure-22@6.[250,1338,190,1713]" captionTargetPageId="6" captionText="FIGURES 28–36. Gyrosigma tenuissimum var. gundulae, type material. Figures 28, 30, 31. LM images. Fig. 28. Holotype, general view. Stitch of 5 stacks of 15–20 images each. Bar = 30 µm. Fig. 30. Enlargement showing centre, note resolution of vestigial (upper) and continuous (lower) central bars. Bar = 1 µm. Fig. 31. Apex showing irregular striation. Bar = 3 µm. Figures 29, 32–36. SEM images. Fig.29. General view. Bar = 30 µm. Fig. 32. Apex, external view. Arrow indicates small accessory pore. Bar = 3 µm. Fig. 33. Centre, external view. Bar = 3 µm. Inset: 1.5x enlargement of Fig. 33 showing overlapping central raphe fissures. Fig. 34. Apex, internal view. Bar = 3 µm. Fig 35. Centre, internal view. Note sideways twisting of raphe fissures. Bar = 3 µm. Inset: 1.5x enlargement showing vestigial central bars. Fig. 36. Vestigial central bars of another specimen. Bar = 1.5 µm." figureDoi="http://doi.org/10.5281/zenodo.5142357" httpUri="https://zenodo.org/record/5142357/files/figure.png" pageId="7" pageNumber="78">Fig. 32</figureCitation>
|
||
, arrow). Externally, central raphe fissures (
|
||
<figureCitation id="136B2A2F650FFFC3FB0FB7DAFB13FED1" box="[1183,1271,230,256]" captionStart="FIGURES 28–36" captionStartId="6.[136,243,1734,1756]" captionTargetBox="[255,1332,195,1687]" captionTargetId="figure-22@6.[250,1338,190,1713]" captionTargetPageId="6" captionText="FIGURES 28–36. Gyrosigma tenuissimum var. gundulae, type material. Figures 28, 30, 31. LM images. Fig. 28. Holotype, general view. Stitch of 5 stacks of 15–20 images each. Bar = 30 µm. Fig. 30. Enlargement showing centre, note resolution of vestigial (upper) and continuous (lower) central bars. Bar = 1 µm. Fig. 31. Apex showing irregular striation. Bar = 3 µm. Figures 29, 32–36. SEM images. Fig.29. General view. Bar = 30 µm. Fig. 32. Apex, external view. Arrow indicates small accessory pore. Bar = 3 µm. Fig. 33. Centre, external view. Bar = 3 µm. Inset: 1.5x enlargement of Fig. 33 showing overlapping central raphe fissures. Fig. 34. Apex, internal view. Bar = 3 µm. Fig 35. Centre, internal view. Note sideways twisting of raphe fissures. Bar = 3 µm. Inset: 1.5x enlargement showing vestigial central bars. Fig. 36. Vestigial central bars of another specimen. Bar = 1.5 µm." figureDoi="http://doi.org/10.5281/zenodo.5142357" httpUri="https://zenodo.org/record/5142357/files/figure.png" pageId="7" pageNumber="78">Figs 33</figureCitation>
|
||
) identical to
|
||
<taxonomicName id="4C504D29650FFFC3FA00B7DBFE38FEF5" authority="var. tenuissimum" class="Bacillariophyceae" family="Pleurosigmataceae" genus="Gyrosigma" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="7" pageNumber="78" phylum="Bacillariophyta" rank="variety" species="tenuissimum" variety="tenuissimum">
|
||
<emphasis id="B924EAB8650FFFC3FA00B7DBFEF0FEF5" italics="true" pageId="7" pageNumber="78">G. tenuissimum</emphasis>
|
||
var.
|
||
<emphasis id="B924EAB8650FFFC3FEC0B637FE38FEF5" box="[336,476,267,292]" italics="true" pageId="7" pageNumber="78">tenuissimum</emphasis>
|
||
</taxonomicName>
|
||
. Some external areolar fissures of adjacent rows show tendency to fuse, forming the letter
|
||
<collectionCode id="ED41AE6F650FFFC3FF58B613FF38FE98" box="[200,220,303,329]" country="Canada" lsid="urn:lsid:biocol.org:col:13946" name="Royal British Columbia Museum - Herbarium" pageId="7" pageNumber="78" type="Museum">V</collectionCode>
|
||
(
|
||
<figureCitation id="136B2A2F650FFFC3FF7BB612FEDAFE99" box="[235,318,302,328]" captionStart="FIGURES 28–36" captionStartId="6.[136,243,1734,1756]" captionTargetBox="[255,1332,195,1687]" captionTargetId="figure-22@6.[250,1338,190,1713]" captionTargetPageId="6" captionText="FIGURES 28–36. Gyrosigma tenuissimum var. gundulae, type material. Figures 28, 30, 31. LM images. Fig. 28. Holotype, general view. Stitch of 5 stacks of 15–20 images each. Bar = 30 µm. Fig. 30. Enlargement showing centre, note resolution of vestigial (upper) and continuous (lower) central bars. Bar = 1 µm. Fig. 31. Apex showing irregular striation. Bar = 3 µm. Figures 29, 32–36. SEM images. Fig.29. General view. Bar = 30 µm. Fig. 32. Apex, external view. Arrow indicates small accessory pore. Bar = 3 µm. Fig. 33. Centre, external view. Bar = 3 µm. Inset: 1.5x enlargement of Fig. 33 showing overlapping central raphe fissures. Fig. 34. Apex, internal view. Bar = 3 µm. Fig 35. Centre, internal view. Note sideways twisting of raphe fissures. Bar = 3 µm. Inset: 1.5x enlargement showing vestigial central bars. Fig. 36. Vestigial central bars of another specimen. Bar = 1.5 µm." figureDoi="http://doi.org/10.5281/zenodo.5142357" httpUri="https://zenodo.org/record/5142357/files/figure.png" pageId="7" pageNumber="78">Fig. 33</figureCitation>
|
||
), as in
|
||
<taxonomicName id="4C504D29650FFFC3FE1EB613FDD8FE99" authorityName="Cleve" authorityYear="1894" baseAuthorityName="W. Sm." box="[398,572,303,329]" class="Bacillariophyceae" family="Pleurosigmataceae" genus="Gyrosigma" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="7" pageNumber="78" phylum="Bacillariophyta" rank="species" species="tenuissimum">
|
||
<emphasis id="B924EAB8650FFFC3FE1EB613FDD8FE99" box="[398,572,303,329]" italics="true" pageId="7" pageNumber="78">G. tenuissimum</emphasis>
|
||
</taxonomicName>
|
||
. Internal raphe fissures show sideways twisting (
|
||
<figureCitation id="136B2A2F650FFFC3FBF3B612FB53FE98" box="[1123,1207,302,329]" captionStart="FIGURES 28–36" captionStartId="6.[136,243,1734,1756]" captionTargetBox="[255,1332,195,1687]" captionTargetId="figure-22@6.[250,1338,190,1713]" captionTargetPageId="6" captionText="FIGURES 28–36. Gyrosigma tenuissimum var. gundulae, type material. Figures 28, 30, 31. LM images. Fig. 28. Holotype, general view. Stitch of 5 stacks of 15–20 images each. Bar = 30 µm. Fig. 30. Enlargement showing centre, note resolution of vestigial (upper) and continuous (lower) central bars. Bar = 1 µm. Fig. 31. Apex showing irregular striation. Bar = 3 µm. Figures 29, 32–36. SEM images. Fig.29. General view. Bar = 30 µm. Fig. 32. Apex, external view. Arrow indicates small accessory pore. Bar = 3 µm. Fig. 33. Centre, external view. Bar = 3 µm. Inset: 1.5x enlargement of Fig. 33 showing overlapping central raphe fissures. Fig. 34. Apex, internal view. Bar = 3 µm. Fig 35. Centre, internal view. Note sideways twisting of raphe fissures. Bar = 3 µm. Inset: 1.5x enlargement showing vestigial central bars. Fig. 36. Vestigial central bars of another specimen. Bar = 1.5 µm." figureDoi="http://doi.org/10.5281/zenodo.5142357" httpUri="https://zenodo.org/record/5142357/files/figure.png" pageId="7" pageNumber="78">Fig. 35</figureCitation>
|
||
).
|
||
</paragraph>
|
||
<paragraph id="8BEF36AA650FFFC3FF2DB66EFEFFFE2C" blockId="7.[136,1452,158,869]" pageId="7" pageNumber="78">
|
||
Central bars around internal central raphe node markedly variable in their degree of silification but are often vestigial, reduced to 4 small “knobs” of silica (
|
||
<figureCitation id="136B2A2F650FFFC3FD0DB64AFCAFFE40" box="[669,843,374,401]" captionStart="FIGURES 28–36" captionStartId="6.[136,243,1734,1756]" captionTargetBox="[255,1332,195,1687]" captionTargetId="figure-22@6.[250,1338,190,1713]" captionTargetPageId="6" captionText="FIGURES 28–36. Gyrosigma tenuissimum var. gundulae, type material. Figures 28, 30, 31. LM images. Fig. 28. Holotype, general view. Stitch of 5 stacks of 15–20 images each. Bar = 30 µm. Fig. 30. Enlargement showing centre, note resolution of vestigial (upper) and continuous (lower) central bars. Bar = 1 µm. Fig. 31. Apex showing irregular striation. Bar = 3 µm. Figures 29, 32–36. SEM images. Fig.29. General view. Bar = 30 µm. Fig. 32. Apex, external view. Arrow indicates small accessory pore. Bar = 3 µm. Fig. 33. Centre, external view. Bar = 3 µm. Inset: 1.5x enlargement of Fig. 33 showing overlapping central raphe fissures. Fig. 34. Apex, internal view. Bar = 3 µm. Fig 35. Centre, internal view. Note sideways twisting of raphe fissures. Bar = 3 µm. Inset: 1.5x enlargement showing vestigial central bars. Fig. 36. Vestigial central bars of another specimen. Bar = 1.5 µm." figureDoi="http://doi.org/10.5281/zenodo.5142357" httpUri="https://zenodo.org/record/5142357/files/figure.png" pageId="7" pageNumber="78">Figs 35 and 36</figureCitation>
|
||
). The extreme resolution of the special LM technique used reveals that one central bar (the lower in
|
||
<figureCitation id="136B2A2F650FFFC3FD03B6A6FD00FE65" box="[659,740,410,436]" captionStart="FIGURES 28–36" captionStartId="6.[136,243,1734,1756]" captionTargetBox="[255,1332,195,1687]" captionTargetId="figure-22@6.[250,1338,190,1713]" captionTargetPageId="6" captionText="FIGURES 28–36. Gyrosigma tenuissimum var. gundulae, type material. Figures 28, 30, 31. LM images. Fig. 28. Holotype, general view. Stitch of 5 stacks of 15–20 images each. Bar = 30 µm. Fig. 30. Enlargement showing centre, note resolution of vestigial (upper) and continuous (lower) central bars. Bar = 1 µm. Fig. 31. Apex showing irregular striation. Bar = 3 µm. Figures 29, 32–36. SEM images. Fig.29. General view. Bar = 30 µm. Fig. 32. Apex, external view. Arrow indicates small accessory pore. Bar = 3 µm. Fig. 33. Centre, external view. Bar = 3 µm. Inset: 1.5x enlargement of Fig. 33 showing overlapping central raphe fissures. Fig. 34. Apex, internal view. Bar = 3 µm. Fig 35. Centre, internal view. Note sideways twisting of raphe fissures. Bar = 3 µm. Inset: 1.5x enlargement showing vestigial central bars. Fig. 36. Vestigial central bars of another specimen. Bar = 1.5 µm." figureDoi="http://doi.org/10.5281/zenodo.5142357" httpUri="https://zenodo.org/record/5142357/files/figure.png" pageId="7" pageNumber="78">Fig. 30</figureCitation>
|
||
) may also consist of a continuous sharp ridge, the other (upper in
|
||
<figureCitation id="136B2A2F650FFFC3FF37B682FF1DFE09" box="[167,249,446,472]" captionStart="FIGURES 28–36" captionStartId="6.[136,243,1734,1756]" captionTargetBox="[255,1332,195,1687]" captionTargetId="figure-22@6.[250,1338,190,1713]" captionTargetPageId="6" captionText="FIGURES 28–36. Gyrosigma tenuissimum var. gundulae, type material. Figures 28, 30, 31. LM images. Fig. 28. Holotype, general view. Stitch of 5 stacks of 15–20 images each. Bar = 30 µm. Fig. 30. Enlargement showing centre, note resolution of vestigial (upper) and continuous (lower) central bars. Bar = 1 µm. Fig. 31. Apex showing irregular striation. Bar = 3 µm. Figures 29, 32–36. SEM images. Fig.29. General view. Bar = 30 µm. Fig. 32. Apex, external view. Arrow indicates small accessory pore. Bar = 3 µm. Fig. 33. Centre, external view. Bar = 3 µm. Inset: 1.5x enlargement of Fig. 33 showing overlapping central raphe fissures. Fig. 34. Apex, internal view. Bar = 3 µm. Fig 35. Centre, internal view. Note sideways twisting of raphe fissures. Bar = 3 µm. Inset: 1.5x enlargement showing vestigial central bars. Fig. 36. Vestigial central bars of another specimen. Bar = 1.5 µm." figureDoi="http://doi.org/10.5281/zenodo.5142357" httpUri="https://zenodo.org/record/5142357/files/figure.png" pageId="7" pageNumber="78">Fig. 30</figureCitation>
|
||
) being reduced to two separate “knobs”, which matches the aspect seen in
|
||
<figureCitation id="136B2A2F650FFFC3FBCCB682FB7BFE08" box="[1116,1183,446,473]" captionStart="FIGURES 1–23" captionStartId="2.[136,243,1808,1830]" captionText="FIGURES 1–23. Gyrosigma tenuissimum." pageId="7" pageNumber="78">Fig. 7</figureCitation>
|
||
of
|
||
<taxonomicName id="4C504D29650FFFC3FB59B683FEF0FE2D" authority="var. tenuissimum" class="Bacillariophyceae" family="Pleurosigmataceae" genus="Gyrosigma" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="7" pageNumber="78" phylum="Bacillariophyta" rank="variety" species="tenuissimum" variety="tenuissimum">
|
||
<emphasis id="B924EAB8650FFFC3FB59B683FA9DFE09" box="[1225,1401,447,473]" italics="true" pageId="7" pageNumber="78">G. tenuissimum</emphasis>
|
||
var.
|
||
<emphasis id="B924EAB8650FFFC3FF18B6DFFEF0FE2D" box="[136,276,483,508]" italics="true" pageId="7" pageNumber="78">tenuissimum</emphasis>
|
||
</taxonomicName>
|
||
.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C34A6521650FFFC3FF2DB53AFC6AFD5D" pageId="7" pageNumber="78" type="etymology">
|
||
<paragraph id="8BEF36AA650FFFC3FF2DB53AFA89FDF0" blockId="7.[136,1452,158,869]" box="[189,1389,518,545]" pageId="7" pageNumber="78">
|
||
<emphasis id="B924EAB8650FFFC3FF2DB53AFE80FDF1" bold="true" box="[189,356,518,544]" pageId="7" pageNumber="78">Etymology:—</emphasis>
|
||
The epithet refers to the long-term support of the first author’s diatom studies by his spouse.
|
||
</paragraph>
|
||
<paragraph id="8BEF36AA650FFFC3FF2DB516FC6AFD5D" blockId="7.[136,1452,158,869]" pageId="7" pageNumber="78">
|
||
<emphasis id="B924EAB8650FFFC3FF2DB516FEFDFD95" bold="true" box="[189,281,554,580]" pageId="7" pageNumber="78">Habitat</emphasis>
|
||
:—Found at temperatures of 21.9–30.5° C and salinities of 26.2–38.9 PSU; typical spring and summer conditions. The Indian River Lagoon is quite shallow (
|
||
<bibRefCitation id="EFC14B5B650FFFC3FD7CB572FBCDFDB9" author="Hargraves, P. E. & Hanisak, M. D." box="[748,1065,590,616]" pageId="7" pageNumber="78" pagination="151 - 167" refId="ref5174" refString="Hargraves, P. E. & Hanisak, M. D. (2011) The significance of chlorophyll size fractionation in the Indian River Lagoon, Florida. Florida Scientist 74: 151 - 167." type="journal article" year="2011">Hargraves & Hanisak, 2011</bibRefCitation>
|
||
), so that the presence of this taxon in plankton samples is not by itself indicative of a planktonic habitat.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C34A6521650FFFC3FF2DB5AAFBD2FCB5" pageId="7" pageNumber="78" type="distribution">
|
||
<paragraph id="8BEF36AA650FFFC3FF2DB5AAFB04FD60" blockId="7.[136,1452,158,869]" box="[189,1248,662,689]" pageId="7" pageNumber="78">
|
||
<emphasis id="B924EAB8650FFFC3FF2DB5AAFEABFD61" bold="true" box="[189,335,662,688]" pageId="7" pageNumber="78">Distribution</emphasis>
|
||
:—Subtropical Indian River Lagoon, East coast of
|
||
<collectingRegion id="4994F848650FFFC3FC19B5AAFC3AFD61" box="[905,990,662,688]" country="United States of America" name="Florida" pageId="7" pageNumber="78">Florida</collectingRegion>
|
||
: widespread (but rare).
|
||
</paragraph>
|
||
<paragraph id="8BEF36AA650FFFC3FF2DB586FBD2FCB5" blockId="7.[136,1452,158,869]" pageId="7" pageNumber="78">
|
||
<emphasis id="B924EAB8650FFFC3FF2DB586FE65FD05" bold="true" box="[189,385,698,724]" pageId="7" pageNumber="78">Observations:—</emphasis>
|
||
The vestigial central bars (4 “knobs”) match the situation in a specimen from the Adriatic illustrated in
|
||
<bibRefCitation id="EFC14B5B650FFFC3FEB4B5E2FD8CFD29" author="Hobel, H. & Sterrenburg, F. A. S." box="[292,616,734,760]" pageId="7" pageNumber="78" pagination="13 - 19" refId="ref5249" refString="Hobel, H. & Sterrenburg, F. A. S. (2011). UV photomicrography of diatoms, Diatom Research, 26: 1, 13 - 19 http: // dx. doi. org / 10.1080 / 0269249 x. 2011.587642" type="journal article" year="2011">Höbel & Sterrenburg (2011</bibRefCitation>
|
||
:
|
||
<figureCitation id="136B2A2F650FFFC3FDE7B5E2FD28FD29" box="[631,716,734,760]" captionStart="FIGURES 1–23" captionStartId="2.[136,243,1808,1830]" captionText="FIGURES 1–23. Gyrosigma tenuissimum." pageId="7" pageNumber="78">Fig. 12</figureCitation>
|
||
) that conforms to
|
||
<taxonomicName id="4C504D29650FFFC3FC3AB5E3FBB9FD29" authorityName="Cleve" authorityYear="1894" baseAuthorityName="W. Sm." box="[938,1117,735,761]" class="Bacillariophyceae" family="Pleurosigmataceae" genus="Gyrosigma" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="7" pageNumber="78" phylum="Bacillariophyta" rank="species" species="tenuissimum">
|
||
<emphasis id="B924EAB8650FFFC3FC3AB5E3FBB9FD29" box="[938,1117,735,761]" italics="true" pageId="7" pageNumber="78">G. tenuissimum</emphasis>
|
||
</taxonomicName>
|
||
. The central bars are highly variable in shape in both
|
||
<taxonomicName id="4C504D29650FFFC3FE34B43FFDB7FCCD" authorityName="Cleve" authorityYear="1894" baseAuthorityName="W. Sm." box="[420,595,771,797]" class="Bacillariophyceae" family="Pleurosigmataceae" genus="Gyrosigma" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="7" pageNumber="78" phylum="Bacillariophyta" rank="species" species="tenuissimum">
|
||
<emphasis id="B924EAB8650FFFC3FE34B43FFDB7FCCD" box="[420,595,771,797]" italics="true" pageId="7" pageNumber="78">G. tenuissimum</emphasis>
|
||
</taxonomicName>
|
||
and the
|
||
<taxonomicName id="4C504D29650FFFC3FD24B43EFC90FCCD" box="[692,884,770,796]" pageId="7" pageNumber="78" rank="variety" variety="described">variety described</taxonomicName>
|
||
here. Deposition of silica is a quantitative process and marked variation in the solidity of the central bars is common in the genus. Probably the basic shape in the taxa discussed is as in
|
||
<figureCitation id="136B2A2F650FFFC3FEDFB476FE75FCB4" box="[335,401,842,869]" captionStart="FIGURES 1–23" captionStartId="2.[136,243,1808,1830]" captionText="FIGURES 1–23. Gyrosigma tenuissimum." pageId="7" pageNumber="78">Fig. 7</figureCitation>
|
||
and
|
||
<figureCitation id="136B2A2F650FFFC3FE57B476FE01FCB5" box="[455,485,842,868]" captionStart="FIGURES 28–36" captionStartId="6.[136,243,1734,1756]" captionTargetBox="[255,1332,195,1687]" captionTargetId="figure-22@6.[250,1338,190,1713]" captionTargetPageId="6" captionText="FIGURES 28–36. Gyrosigma tenuissimum var. gundulae, type material. Figures 28, 30, 31. LM images. Fig. 28. Holotype, general view. Stitch of 5 stacks of 15–20 images each. Bar = 30 µm. Fig. 30. Enlargement showing centre, note resolution of vestigial (upper) and continuous (lower) central bars. Bar = 1 µm. Fig. 31. Apex showing irregular striation. Bar = 3 µm. Figures 29, 32–36. SEM images. Fig.29. General view. Bar = 30 µm. Fig. 32. Apex, external view. Arrow indicates small accessory pore. Bar = 3 µm. Fig. 33. Centre, external view. Bar = 3 µm. Inset: 1.5x enlargement of Fig. 33 showing overlapping central raphe fissures. Fig. 34. Apex, internal view. Bar = 3 µm. Fig 35. Centre, internal view. Note sideways twisting of raphe fissures. Bar = 3 µm. Inset: 1.5x enlargement showing vestigial central bars. Fig. 36. Vestigial central bars of another specimen. Bar = 1.5 µm." figureDoi="http://doi.org/10.5281/zenodo.5142357" httpUri="https://zenodo.org/record/5142357/files/figure.png" pageId="7" pageNumber="78">30</figureCitation>
|
||
, reduction leading to the aspect as in
|
||
<figureCitation id="136B2A2F650FFFC3FC19B476FBD6FCB5" box="[905,1074,842,869]" captionStart="FIGURES 28–36" captionStartId="6.[136,243,1734,1756]" captionTargetBox="[255,1332,195,1687]" captionTargetId="figure-22@6.[250,1338,190,1713]" captionTargetPageId="6" captionText="FIGURES 28–36. Gyrosigma tenuissimum var. gundulae, type material. Figures 28, 30, 31. LM images. Fig. 28. Holotype, general view. Stitch of 5 stacks of 15–20 images each. Bar = 30 µm. Fig. 30. Enlargement showing centre, note resolution of vestigial (upper) and continuous (lower) central bars. Bar = 1 µm. Fig. 31. Apex showing irregular striation. Bar = 3 µm. Figures 29, 32–36. SEM images. Fig.29. General view. Bar = 30 µm. Fig. 32. Apex, external view. Arrow indicates small accessory pore. Bar = 3 µm. Fig. 33. Centre, external view. Bar = 3 µm. Inset: 1.5x enlargement of Fig. 33 showing overlapping central raphe fissures. Fig. 34. Apex, internal view. Bar = 3 µm. Fig 35. Centre, internal view. Note sideways twisting of raphe fissures. Bar = 3 µm. Inset: 1.5x enlargement showing vestigial central bars. Fig. 36. Vestigial central bars of another specimen. Bar = 1.5 µm." figureDoi="http://doi.org/10.5281/zenodo.5142357" httpUri="https://zenodo.org/record/5142357/files/figure.png" pageId="7" pageNumber="78">Figs 35 and 36</figureCitation>
|
||
.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |