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<document id="CA0813DF94DEA4DCD07E926F1FCEBFAB" ID-DOI="10.11646/phytotaxa.382.1.1" ID-ISSN="1179-3163" 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="1725669367308" checkinUser="felipe" docAuthor="Sims, Pat A., Williams, David M. &amp; Ashworth, Matt" docDate="2018" docId="12590703F401FF8822DCF929FB4A26FD" docLanguage="en" docName="phytotaxa.382.1.1.pdf" docOrigin="Phytotaxa 382 (1)" docSource="http://dx.doi.org/10.11646/phytotaxa.382.1.1" docStyle="DocumentStyle:96748F8F1B6C902996E134952A3A36B9.13:Phytotaxa.2014-.journal_article" docStyleId="96748F8F1B6C902996E134952A3A36B9" docStyleName="Phytotaxa.2014-.journal_article" docStyleVersion="13" docTitle="Diommatetras grossa Komura 2001" docType="treatment" docVersion="1" lastPageNumber="32" masterDocId="EE607F7BF41CFF972254FFF9FF8E2724" masterDocTitle="Examination of type specimens for the genera Odontella and Zygoceros (Bacillariophyceae) with evidence for the new family Odontellaceae and a description of three new genera" masterLastPageNumber="56" masterPageNumber="1" pageNumber="30" updateTime="1725680413524" updateUser="GgImagineBatch" zenodo-license-figures="UNSPECIFIED" zenodo-license-treatments="UNSPECIFIED">
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<mods:title id="5B08B9688AA9C0E50607FF14259E6736">Examination of type specimens for the genera Odontella and Zygoceros (Bacillariophyceae) with evidence for the new family Odontellaceae and a description of three new genera</mods:title>
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<taxonomicName id="5DF0CD96F401FF8A22DCF929FDDB21CD" authority="Komura (2001: 77" authorityName="Komura" authorityYear="2001" box="[136,597,1744,1769]" class="Bacillariophyceae" family="Odontellaceae" genus="Diommatetras" higherTaxonomySource="GBIF" kingdom="Chromista" order="Triceratiales" pageId="29" pageNumber="30" phylum="Ochrophyta" rank="species" species="grossa">
<emphasis id="A8846A07F401FF8A22DCF929FEF321CD" bold="true" box="[136,381,1744,1769]" italics="true" pageId="29" pageNumber="30">Diommatetras grossa</emphasis>
<bibRefCitation id="FE61CBE4F401FF8A23D0F929FDDB21CD" author="Komura, S." box="[388,597,1744,1769]" pageId="29" pageNumber="30" pagination="69 - 89" refId="ref28720" refString="Komura, S. (2001) Comments on some new diatoms from the Miocene Morito Formation, central Japan. Diatom 17: 69 - 89." type="journal article" year="2001">Komura (2001: 77</bibRefCitation>
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, figs 5575, text-fig. 3) (
<figureCitation id="02CBAA90F401FF8A2139F929FB8621CD" box="[877,1032,1744,1769]" captionStart="FIGURES 105110" captionStartId="30.[136,243,1821,1842]" captionTargetBox="[207,1382,188,1778]" captionTargetId="figure-15@30.[190,1398,173,1797]" captionTargetPageId="30" captionText="FIGURES 105110. Diommatetras grossa Komura (Atlantic City well, 406 ft, USA). Fig.105. Quadrangular valve tilted valve margins concave. Lying opposite are 2 elevations each with a rimmed ocellus at summit. Lying midway between elevations vale margin expands with a submarginal stout spine, the opening of a rimoportula present. Valve centre convex with a depressed central area.; scale bar = 10 μm. Fig.106. Valve interior with radial rows of discrete poroid areolae extending from small depressed central area; scale bar = 10 μm. Fig. 107. Anastomosing costae enclosing areolae occluded by cribra with the occasional specialised pore (arrow); scale bar = 2 μm. Fig. 108. Interior opening of submarginal rimoportula, cribra and specialised pore (arrow); scale bar = 2 μm. Fig. 109. Valve rotated showing valve mantle attached to expanded hyaline valve margin by costae; scale bar = 10 μm. Fig. 110. Valve flat with concave valve margins, long costae linking an oval valve centre to elevations, long stout hollow spine, a rimoportula, at opposing angles; scale bar = 10 μm." pageId="29" pageNumber="30">Figs 105110</figureCitation>
)
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<paragraph id="9A4FB615F401FF8A22DCF90EFAEC2070" blockId="29.[136,1452,1783,1876]" pageId="29" pageNumber="30">
<emphasis id="A8846A07F401FF8A22DCF90EFF342028" bold="true" box="[136,186,1783,1804]" pageId="29" pageNumber="30">Type</emphasis>
:—
<collectingCountry id="E2E7F685F401FF8A228CF90EFE9D2028" box="[216,275,1783,1804]" name="Japan" pageId="29" pageNumber="30">Japan</collectingCountry>
: Miocene Morito Formation, “Km-5912…Calcareous nodules…collected from one of the serial rocky shoals submerged beneath the upper tidal level along the sand beach at Morito in the west side of the Miura Peninsula (Lat.
<geoCoordinate id="FFC4D0D2F401FF8A26E0F8E2FAB82014" box="[1204,1334,1819,1840]" degrees="35" direction="north" minutes="16" orientation="latitude" pageId="29" pageNumber="30" precision="15" seconds="06" value="35.268333">35° 16 06”N</geoCoordinate>
, Long.
<geoCoordinate id="FFC4D0D2F401FF8A272AF8E2FE9B2070" degrees="139" direction="east" minutes="34" orientation="longitude" pageId="29" pageNumber="30" precision="15" seconds="24" value="139.57333">139° 34 24”E</geoCoordinate>
, Text-fig.1)” (
<bibRefCitation id="FE61CBE4F401FF8A23C8F8C6FDC42070" author="Komura, S." box="[412,586,1855,1876]" pageId="29" pageNumber="30" pagination="69 - 89" refId="ref28720" refString="Komura, S. (2001) Comments on some new diatoms from the Miocene Morito Formation, central Japan. Diatom 17: 69 - 89." type="journal article" year="2001">Komura 2001: 70</bibRefCitation>
), “Km-5912 (4) = 14.8 X 129.1 (Fm39901) (
<typeStatus id="454B08B7F401FF8A21AEF8C6FBDD2070" box="[1018,1107,1855,1876]" pageId="29" pageNumber="30" type="holotype">holotype</typeStatus>
)” =
<bibRefCitation id="FE61CBE4F401FF8A262FF8C6FA852070" author="Komura, S." box="[1147,1291,1855,1876]" pageId="29" pageNumber="30" pagination="69 - 89" refId="ref28720" refString="Komura, S. (2001) Comments on some new diatoms from the Miocene Morito Formation, central Japan. Diatom 17: 69 - 89." type="journal article" year="2001">Komura (2001</bibRefCitation>
: fig. 14).
</paragraph>
<paragraph id="9A4FB615F401FF8822DCF87DFEA12649" blockId="29.[136,1452,1924,2057]" lastBlockId="31.[136,1452,160,473]" lastPageId="31" lastPageNumber="32" pageId="29" pageNumber="30">
Valves quadrate with two opposing poles narrower and longer than the other two, margins concave (
<figureCitation id="02CBAA90F401FF8A2755F87DFA1020B9" box="[1281,1438,1924,1949]" captionStart="FIGURES 105110" captionStartId="30.[136,243,1821,1842]" captionTargetBox="[207,1382,188,1778]" captionTargetId="figure-15@30.[190,1398,173,1797]" captionTargetPageId="30" captionText="FIGURES 105110. Diommatetras grossa Komura (Atlantic City well, 406 ft, USA). Fig.105. Quadrangular valve tilted valve margins concave. Lying opposite are 2 elevations each with a rimmed ocellus at summit. Lying midway between elevations vale margin expands with a submarginal stout spine, the opening of a rimoportula present. Valve centre convex with a depressed central area.; scale bar = 10 μm. Fig.106. Valve interior with radial rows of discrete poroid areolae extending from small depressed central area; scale bar = 10 μm. Fig. 107. Anastomosing costae enclosing areolae occluded by cribra with the occasional specialised pore (arrow); scale bar = 2 μm. Fig. 108. Interior opening of submarginal rimoportula, cribra and specialised pore (arrow); scale bar = 2 μm. Fig. 109. Valve rotated showing valve mantle attached to expanded hyaline valve margin by costae; scale bar = 10 μm. Fig. 110. Valve flat with concave valve margins, long costae linking an oval valve centre to elevations, long stout hollow spine, a rimoportula, at opposing angles; scale bar = 10 μm." pageId="29" pageNumber="30">Fig. 105, 109</figureCitation>
), length 39μm, breadth 36.5μm (
<bibRefCitation id="FE61CBE4F401FF8A23B8F851FD3620E5" author="Komura, S." box="[492,696,1960,1985]" pageId="29" pageNumber="30" pagination="69 - 89" refId="ref28720" refString="Komura, S. (2001) Comments on some new diatoms from the Miocene Morito Formation, central Japan. Diatom 17: 69 - 89." type="journal article" year="2001">Komura 2001: 77</bibRefCitation>
, gives 25.533μm long, 21.531.5μm breadth). At narrower poles short elevation with ocellus at its summit extends outwards (
<figureCitation id="02CBAA90F401FF8A2179F835FC1E20C1" box="[813,912,1996,2021]" captionStart="FIGURES 105110" captionStartId="30.[136,243,1821,1842]" captionTargetBox="[207,1382,188,1778]" captionTargetId="figure-15@30.[190,1398,173,1797]" captionTargetPageId="30" captionText="FIGURES 105110. Diommatetras grossa Komura (Atlantic City well, 406 ft, USA). Fig.105. Quadrangular valve tilted valve margins concave. Lying opposite are 2 elevations each with a rimmed ocellus at summit. Lying midway between elevations vale margin expands with a submarginal stout spine, the opening of a rimoportula present. Valve centre convex with a depressed central area.; scale bar = 10 μm. Fig.106. Valve interior with radial rows of discrete poroid areolae extending from small depressed central area; scale bar = 10 μm. Fig. 107. Anastomosing costae enclosing areolae occluded by cribra with the occasional specialised pore (arrow); scale bar = 2 μm. Fig. 108. Interior opening of submarginal rimoportula, cribra and specialised pore (arrow); scale bar = 2 μm. Fig. 109. Valve rotated showing valve mantle attached to expanded hyaline valve margin by costae; scale bar = 10 μm. Fig. 110. Valve flat with concave valve margins, long costae linking an oval valve centre to elevations, long stout hollow spine, a rimoportula, at opposing angles; scale bar = 10 μm." pageId="29" pageNumber="30">Fig. 105</figureCitation>
). Valve centre oval, distinctly convex (
<figureCitation id="02CBAA90F401FF8A2715F835FF652F2D" captionStart="FIGURES 105110" captionStartId="30.[136,243,1821,1842]" captionTargetBox="[207,1382,188,1778]" captionTargetId="figure-15@30.[190,1398,173,1797]" captionTargetPageId="30" captionText="FIGURES 105110. Diommatetras grossa Komura (Atlantic City well, 406 ft, USA). Fig.105. Quadrangular valve tilted valve margins concave. Lying opposite are 2 elevations each with a rimmed ocellus at summit. Lying midway between elevations vale margin expands with a submarginal stout spine, the opening of a rimoportula present. Valve centre convex with a depressed central area.; scale bar = 10 μm. Fig.106. Valve interior with radial rows of discrete poroid areolae extending from small depressed central area; scale bar = 10 μm. Fig. 107. Anastomosing costae enclosing areolae occluded by cribra with the occasional specialised pore (arrow); scale bar = 2 μm. Fig. 108. Interior opening of submarginal rimoportula, cribra and specialised pore (arrow); scale bar = 2 μm. Fig. 109. Valve rotated showing valve mantle attached to expanded hyaline valve margin by costae; scale bar = 10 μm. Fig. 110. Valve flat with concave valve margins, long costae linking an oval valve centre to elevations, long stout hollow spine, a rimoportula, at opposing angles; scale bar = 10 μm." pageId="29" pageNumber="30">Figs 105, 106, 110</figureCitation>
), the longer axis lying towards shorter apices.A series of radially aligned costae link valve centre to apices and a regular row of short costae link the narrow mantle to expanded hyaline valve margin (
<figureCitation id="02CBAA90F403FF882639FF59FA80279D" box="[1133,1294,160,185]" captionStart="FIGURES 105110" captionStartId="30.[136,243,1821,1842]" captionTargetBox="[207,1382,188,1778]" captionTargetId="figure-15@30.[190,1398,173,1797]" captionTargetPageId="30" captionText="FIGURES 105110. Diommatetras grossa Komura (Atlantic City well, 406 ft, USA). Fig.105. Quadrangular valve tilted valve margins concave. Lying opposite are 2 elevations each with a rimmed ocellus at summit. Lying midway between elevations vale margin expands with a submarginal stout spine, the opening of a rimoportula present. Valve centre convex with a depressed central area.; scale bar = 10 μm. Fig.106. Valve interior with radial rows of discrete poroid areolae extending from small depressed central area; scale bar = 10 μm. Fig. 107. Anastomosing costae enclosing areolae occluded by cribra with the occasional specialised pore (arrow); scale bar = 2 μm. Fig. 108. Interior opening of submarginal rimoportula, cribra and specialised pore (arrow); scale bar = 2 μm. Fig. 109. Valve rotated showing valve mantle attached to expanded hyaline valve margin by costae; scale bar = 10 μm. Fig. 110. Valve flat with concave valve margins, long costae linking an oval valve centre to elevations, long stout hollow spine, a rimoportula, at opposing angles; scale bar = 10 μm." pageId="31" pageNumber="32">Figs 105, 109</figureCitation>
). Central area depressed covered externally with anastomosing costae forming irregular reticulate pattern, spines at junctions. Poroid areolae lie within anastomosing costae, the majority occluded by raised cribrum (
<figureCitation id="02CBAA90F403FF882661FF11FB142625" box="[1077,1178,232,257]" captionStart="FIGURES 105110" captionStartId="30.[136,243,1821,1842]" captionTargetBox="[207,1382,188,1778]" captionTargetId="figure-15@30.[190,1398,173,1797]" captionTargetPageId="30" captionText="FIGURES 105110. Diommatetras grossa Komura (Atlantic City well, 406 ft, USA). Fig.105. Quadrangular valve tilted valve margins concave. Lying opposite are 2 elevations each with a rimmed ocellus at summit. Lying midway between elevations vale margin expands with a submarginal stout spine, the opening of a rimoportula present. Valve centre convex with a depressed central area.; scale bar = 10 μm. Fig.106. Valve interior with radial rows of discrete poroid areolae extending from small depressed central area; scale bar = 10 μm. Fig. 107. Anastomosing costae enclosing areolae occluded by cribra with the occasional specialised pore (arrow); scale bar = 2 μm. Fig. 108. Interior opening of submarginal rimoportula, cribra and specialised pore (arrow); scale bar = 2 μm. Fig. 109. Valve rotated showing valve mantle attached to expanded hyaline valve margin by costae; scale bar = 10 μm. Fig. 110. Valve flat with concave valve margins, long costae linking an oval valve centre to elevations, long stout hollow spine, a rimoportula, at opposing angles; scale bar = 10 μm." pageId="31" pageNumber="32">Fig. 107</figureCitation>
), occasional specialised pore present (
<figureCitation id="02CBAA90F403FF882377FEF5FE4D2601" box="[291,451,268,293]" captionStart="FIGURES 105110" captionStartId="30.[136,243,1821,1842]" captionTargetBox="[207,1382,188,1778]" captionTargetId="figure-15@30.[190,1398,173,1797]" captionTargetPageId="30" captionText="FIGURES 105110. Diommatetras grossa Komura (Atlantic City well, 406 ft, USA). Fig.105. Quadrangular valve tilted valve margins concave. Lying opposite are 2 elevations each with a rimmed ocellus at summit. Lying midway between elevations vale margin expands with a submarginal stout spine, the opening of a rimoportula present. Valve centre convex with a depressed central area.; scale bar = 10 μm. Fig.106. Valve interior with radial rows of discrete poroid areolae extending from small depressed central area; scale bar = 10 μm. Fig. 107. Anastomosing costae enclosing areolae occluded by cribra with the occasional specialised pore (arrow); scale bar = 2 μm. Fig. 108. Interior opening of submarginal rimoportula, cribra and specialised pore (arrow); scale bar = 2 μm. Fig. 109. Valve rotated showing valve mantle attached to expanded hyaline valve margin by costae; scale bar = 10 μm. Fig. 110. Valve flat with concave valve margins, long costae linking an oval valve centre to elevations, long stout hollow spine, a rimoportula, at opposing angles; scale bar = 10 μm." pageId="31" pageNumber="32">Figs 107, 108</figureCitation>
, arrow). Areolae ca.
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10μm. Rimoportulae 2, each positioned at base of longer axis of central area opening externally through long tubular spine (
<figureCitation id="02CBAA90F403FF882116FEC9FC6F266D" box="[834,993,304,329]" captionStart="FIGURES 105110" captionStartId="30.[136,243,1821,1842]" captionTargetBox="[207,1382,188,1778]" captionTargetId="figure-15@30.[190,1398,173,1797]" captionTargetPageId="30" captionText="FIGURES 105110. Diommatetras grossa Komura (Atlantic City well, 406 ft, USA). Fig.105. Quadrangular valve tilted valve margins concave. Lying opposite are 2 elevations each with a rimmed ocellus at summit. Lying midway between elevations vale margin expands with a submarginal stout spine, the opening of a rimoportula present. Valve centre convex with a depressed central area.; scale bar = 10 μm. Fig.106. Valve interior with radial rows of discrete poroid areolae extending from small depressed central area; scale bar = 10 μm. Fig. 107. Anastomosing costae enclosing areolae occluded by cribra with the occasional specialised pore (arrow); scale bar = 2 μm. Fig. 108. Interior opening of submarginal rimoportula, cribra and specialised pore (arrow); scale bar = 2 μm. Fig. 109. Valve rotated showing valve mantle attached to expanded hyaline valve margin by costae; scale bar = 10 μm. Fig. 110. Valve flat with concave valve margins, long costae linking an oval valve centre to elevations, long stout hollow spine, a rimoportula, at opposing angles; scale bar = 10 μm." pageId="31" pageNumber="32">Figs 105, 109</figureCitation>
), internally through a slit between raised lips (
<figureCitation id="02CBAA90F403FF882294FEADFEAC2649" box="[192,290,340,365]" captionStart="FIGURES 105110" captionStartId="30.[136,243,1821,1842]" captionTargetBox="[207,1382,188,1778]" captionTargetId="figure-15@30.[190,1398,173,1797]" captionTargetPageId="30" captionText="FIGURES 105110. Diommatetras grossa Komura (Atlantic City well, 406 ft, USA). Fig.105. Quadrangular valve tilted valve margins concave. Lying opposite are 2 elevations each with a rimmed ocellus at summit. Lying midway between elevations vale margin expands with a submarginal stout spine, the opening of a rimoportula present. Valve centre convex with a depressed central area.; scale bar = 10 μm. Fig.106. Valve interior with radial rows of discrete poroid areolae extending from small depressed central area; scale bar = 10 μm. Fig. 107. Anastomosing costae enclosing areolae occluded by cribra with the occasional specialised pore (arrow); scale bar = 2 μm. Fig. 108. Interior opening of submarginal rimoportula, cribra and specialised pore (arrow); scale bar = 2 μm. Fig. 109. Valve rotated showing valve mantle attached to expanded hyaline valve margin by costae; scale bar = 10 μm. Fig. 110. Valve flat with concave valve margins, long costae linking an oval valve centre to elevations, long stout hollow spine, a rimoportula, at opposing angles; scale bar = 10 μm." pageId="31" pageNumber="32">Fig. 108</figureCitation>
).
</paragraph>
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<emphasis id="A8846A07F402FF8922DCF8E4FEDC2016" bold="true" box="[136,338,1821,1842]" pageId="30" pageNumber="31">FIGURES 105110.</emphasis>
<taxonomicName id="5DF0CD96F402FF89230DF8E4FDF32016" authority="Komura" authorityName="Komura" authorityYear="2001" box="[345,637,1821,1842]" class="Bacillariophyceae" family="Odontellaceae" genus="Diommatetras" higherTaxonomySource="GBIF" kingdom="Chromista" order="Triceratiales" pageId="30" pageNumber="31" phylum="Ochrophyta" rank="species" species="grossa">
<emphasis id="A8846A07F402FF89230DF8E4FDA62016" box="[345,552,1821,1842]" italics="true" pageId="30" pageNumber="31">Diommatetras grossa</emphasis>
Komura
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(Atlantic City well, 406 ft, USA). Fig.105. Quadrangular valve tilted valve margins concave. Lying opposite are 2 elevations each with a rimmed ocellus at summit. Lying midway between elevations vale margin expands with a submarginal stout spine, the opening of a rimoportula present. Valve centre convex with a depressed central area.; scale bar = 10 μm. Fig.106. Valve interior with radial rows of discrete poroid areolae extending from small depressed central area; scale bar = 10 μm. Fig. 107. Anastomosing costae enclosing areolae occluded by cribra with the occasional specialised pore (arrow); scale bar = 2 μm. Fig. 108. Interior opening of submarginal rimoportula, cribra and specialised pore (arrow); scale bar = 2 μm. Fig. 109. Valve rotated showing valve mantle attached to expanded hyaline valve margin by costae; scale bar = 10 μm. Fig. 110. Valve flat with concave valve margins, long costae linking an oval valve centre to elevations, long stout hollow spine, a rimoportula, at opposing angles; scale bar = 10 μm.
</paragraph>
</caption>
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<emphasis id="A8846A07F403FF8822E9FE81FE0F26B5" bold="true" box="[189,385,376,401]" pageId="31" pageNumber="32">Observations:—</emphasis>
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<emphasis id="A8846A07F403FF8823D5FE81FDAF26B5" box="[385,545,376,401]" italics="true" pageId="31" pageNumber="32">Diommatetras</emphasis>
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appears to be closely related to
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<taxonomicName id="5DF0CD96F403FF8821CDFE81FBA126B5" authorityName="Ehrenberg" authorityYear="1840" box="[921,1071,376,401]" class="Bacillariophyceae" family="Triceratiaceae" genus="Amphipentas" higherTaxonomySource="GBIF" kingdom="Chromista" order="Triceratiales" pageId="31" pageNumber="32" phylum="Ochrophyta" rank="genus">Amphipentas</taxonomicName>
.
</emphasis>
For a more detailed account see
<bibRefCitation id="FE61CBE4F403FF8822DCFE65FE002691" author="Komura, S." box="[136,398,412,437]" pageId="31" pageNumber="32" pagination="69 - 89" refId="ref28720" refString="Komura, S. (2001) Comments on some new diatoms from the Miocene Morito Formation, central Japan. Diatom 17: 69 - 89." type="journal article" year="2001">Komura (2001: 7780)</bibRefCitation>
.
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This description is based on specimens from Atlantic City well at
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,
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,
<collectingCountry id="E2E7F685F403FF8826D0FE39FB4E26FD" box="[1156,1216,448,473]" name="United States of America" pageId="31" pageNumber="32">USA</collectingCountry>
.
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Valves bipolar-hexagonal, in some angles barely raised elevations, ocellus on its summit. Valve face weakly convex, mantle rounded, distinctly indented at base where it meets expanded hyaline valve margin with raised border. Valve covered with false pseudoloculi, basal layer with poroid areolae, radially aligned. Poroid areolae occluded by
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of vela, mostly cribra with occasional specialised pore present. Rimoportulae single (rarely two), submarginal or at foot of elevation. Valve interior with uninterrupted radial rows of poroid areolae. Valvocopula distinct, with broad pars interior and inner row of elongate pores.
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<subSubSection id="D2EAE59EF40AFF8122DCFEF7FDA8264F" pageId="22" pageNumber="23" type="reference_group">
<paragraph id="9A4FB615F40AFF8122DCFEF7FD2C2607" blockId="22.[136,1451,270,435]" box="[136,674,270,291]" pageId="22" pageNumber="23">
<emphasis id="A8846A07F40AFF8122DCFEF7FF632607" bold="true" box="[136,237,270,291]" pageId="22" pageNumber="23">Basionym</emphasis>
:—
<taxonomicName id="5DF0CD96F40AFF812358FEF7FDDF2607" authority="Bailey (1854: 6" authorityName="Bailey" authorityYear="1854" box="[268,593,270,291]" class="Bacillariophyceae" family="Triceratiaceae" genus="Auliscus" higherTaxonomySource="GBIF" kingdom="Chromista" order="Triceratiales" pageId="22" pageNumber="23" phylum="Ochrophyta" rank="species" species="radiatus">
<emphasis id="A8846A07F40AFF812358FEF7FE3D2607" box="[268,435,270,291]" italics="true" pageId="22" pageNumber="23">Auliscus radiatus</emphasis>
<bibRefCitation id="FE61CBE4F40AFF8123EDFEF7FDDF2607" author="Bailey, J. W." box="[441,593,270,291]" pageId="22" pageNumber="23" pagination="1 - 15" refId="ref25965" refString="Bailey, J. W. (1854) Notes on new species and localities of microscopical organisms. Smithsonian Contributions to Knowledge 7: 1 - 15." type="journal article" year="1854">Bailey (1854: 6</bibRefCitation>
</taxonomicName>
, fig. 13)
</paragraph>
<paragraph id="9A4FB615F40AFF8122DCFECBFDA8264F" blockId="22.[136,1451,270,435]" pageId="22" pageNumber="23">
<emphasis id="A8846A07F40AFF8122DCFECBFF7F2663" bold="true" box="[136,241,306,327]" pageId="22" pageNumber="23">Synonyms</emphasis>
:—
<taxonomicName id="5DF0CD96F40AFF812344FECBFDF52663" authority="Greville (1863: 49)" authorityName="Greville" authorityPageNumber="49" authorityYear="1863" box="[272,635,306,327]" class="Bacillariophyceae" family="Triceratiaceae" genus="Auliscus" higherTaxonomySource="GBIF" kingdom="Chromista" order="Triceratiales" pageId="22" pageNumber="23" phylum="Ochrophyta" rank="species" species="baileyii">
<emphasis id="A8846A07F40AFF812344FECBFE3C2663" box="[272,434,306,327]" italics="true" pageId="22" pageNumber="23">Auliscus baileyii</emphasis>
<bibRefCitation id="FE61CBE4F40AFF8123EFFECBFDF52663" author="Greville, R. K." box="[443,635,306,327]" pageId="22" pageNumber="23" pagination="36 - 53" refId="ref27686" refString="Greville, R. K. (1863) A monograph of the genus Auliscus. Transactions of the Microscopical Society of London n. s., 11: 36 - 53." type="journal article" year="1863">Greville (1863: 49)</bibRefCitation>
</taxonomicName>
<taxonomicName id="5DF0CD96F40AFF8120D0FECBFBF42663" authority="(Bailey) A. Schmidt (1875" authorityName="A. Schmidt" authorityYear="1875" baseAuthorityName="Bailey" box="[644,1146,306,327]" class="Bacillariophyceae" family="Triceratiaceae" genus="Pseudauliscus" higherTaxonomySource="GBIF" kingdom="Chromista" order="Triceratiales" pageId="22" pageNumber="23" phylum="Ochrophyta" rank="species" species="radiatus">
<emphasis id="A8846A07F40AFF8120D0FECBFCE82663" box="[644,870,306,327]" italics="true" pageId="22" pageNumber="23">Pseudauliscus radiatus</emphasis>
(Bailey) A.
<bibRefCitation id="FE61CBE4F40AFF8121B2FECBFBF42663" author="Schmidt, A." box="[998,1146,306,327]" pageId="22" pageNumber="23" refId="ref30890" refString="Schmidt, A. (1875) Atlas der Diatomaceen-kunde. Aschersleben, Commissions-Verlag Von Ludwig Siever's Buchandlung Series I. pl. 32." type="journal volume" year="1875">Schmidt (1875</bibRefCitation>
</taxonomicName>
: pl. 32, fig. 28)
<taxonomicName id="5DF0CD96F40AFF812776FECBFDA8264F" authority="(Bailey) Rattray (1888: 902)" authorityName="Rattray" authorityPageNumber="902" authorityYear="1888" baseAuthorityName="Bailey" class="Bacillariophyceae" family="Triceratiaceae" genus="Pseudauliscus" higherTaxonomySource="GBIF" kingdom="Chromista" order="Triceratiales" pageId="22" pageNumber="23" phylum="Ochrophyta" rank="species" species="radiatus">
<emphasis id="A8846A07F40AFF812776FECBFE83264F" italics="true" pageId="22" pageNumber="23">Pseudauliscus radiatus</emphasis>
(Bailey)
<bibRefCitation id="FE61CBE4F40AFF81233CFEAFFDA8264F" author="Rattray, J." box="[360,550,342,363]" pageId="22" pageNumber="23" pagination="861 - 920" refId="ref30368" refString="Rattray, J. (1888) A revision of the genus Auliscus Ehrenberg and of some allied genera. Journal of the Royal Microscopical Society 1888: 861 - 920, 5 pls." type="journal article" year="1888">Rattray (1888: 902)</bibRefCitation>
</taxonomicName>
</paragraph>
</subSubSection>
<subSubSection id="D2EAE59EF40AFF8122DCFE83FA8B243B" pageId="22" pageNumber="23" type="materials_examined">
<paragraph id="9A4FB615F40AFF8122DCFE83FC122697" blockId="22.[136,1451,270,435]" pageId="22" pageNumber="23">
<emphasis id="A8846A07F40AFF8122DCFE83FF5426AB" bold="true" box="[136,218,378,399]" pageId="22" pageNumber="23">Type:—</emphasis>
<collectingCountry id="E2E7F685F40AFF81228EFE83FE8226AB" box="[218,268,378,399]" name="United States of America" pageId="22" pageNumber="23">USA</collectingCountry>
, Rockaway,
<collectingRegion id="583478F7F40AFF8123D2FE83FE6926AB" box="[390,487,378,399]" country="United States of America" name="New York" pageId="22" pageNumber="23">New York</collectingRegion>
(FH-Harvard Bailey #1979,
<typeStatus id="454B08B7F40AFF8120A9FE83FCDB26AB" box="[765,853,378,399]" pageId="22" pageNumber="23" type="lectotype">lectotype</typeStatus>
designated by
<bibRefCitation id="FE61CBE4F40AFF8121B2FE83FA8726AB" author="Prasad, A. K. S. K. &amp; Nienow, J." box="[998,1289,378,399]" pageId="22" pageNumber="23" pagination="251 - 267" refId="ref30046" refString="Prasad, A. K. S. K. &amp; Nienow, J. (2008) Transfer of the extant marine diatom Pseudauliscus radiatus (Eupodiscaceae) to the forgotten genus Mastodiscus Bailey and an emended generic description of Fryxelliella. Beihefte zur Nova Hedwigia 133: 251 - 267." type="journal article" year="2008">Prasad and Nienow 2008: 254</bibRefCitation>
, specimen found at
<collectingCountry id="E2E7F685F40AFF812281FE67FEAB2697" box="[213,293,414,435]" name="United Kingdom" pageId="22" pageNumber="23">England</collectingCountry>
finder K-34, http://www2.huh.harvard.edu/diatom/baileycat.htm)
</paragraph>
<paragraph id="9A4FB615F40AFF8122DCFE1DFC8725DF" blockId="22.[136,1452,484,799]" pageId="22" pageNumber="23">
Valve face circular, sub-circular or oval, diameter 4090μm, with two large opposing ocelli at the poles in subcircular-oval specimens (
<figureCitation id="02CBAA90F40AFF8123CBFDF0FDAE2506" box="[415,544,521,546]" captionStart="FIGURES 7680" captionStartId="23.[136,243,1841,1862]" captionTargetBox="[169,1419,282,1805]" captionTargetId="figure-33@23.[150,1436,265,1820]" captionTargetPageId="23" captionText="FIGURES 7680. Mastodiscus radiatus (Bailey)A.K.S. Prasad and Nienow (Pensacola, Florida, USA). Fig. 76. Tilted valve exterior with two large opposing rimmed ocelli, rows of poroid areolae radiating from the valve centre and valve mantle with sipho marginalis; scale bar = 38 μm. Fig. 77. Interior openings from rimoportulae lying midway between ocelli; scale bar = 43 μm. Fig. 78. Ocellus with radial rows of porelli within a broad raised hyaline rim; scale bar = 7.5 μm. Fig. 79. Exterior with opening from rimoportula, poroid areolae occluded by vela and an occasional specialised pore (arrow); scale bar = 5 μm. Fig. 80. Interior with opening of rimoportula; scale bar = 5 μm." pageId="22" pageNumber="23">Figs 76, 77</figureCitation>
). Ocelli with broad hyaline rims and radial rows of porelli (
<figureCitation id="02CBAA90F40AFF8126E4FDF0FA8D2506" box="[1200,1283,521,546]" captionStart="FIGURES 7680" captionStartId="23.[136,243,1841,1862]" captionTargetBox="[169,1419,282,1805]" captionTargetId="figure-33@23.[150,1436,265,1820]" captionTargetPageId="23" captionText="FIGURES 7680. Mastodiscus radiatus (Bailey)A.K.S. Prasad and Nienow (Pensacola, Florida, USA). Fig. 76. Tilted valve exterior with two large opposing rimmed ocelli, rows of poroid areolae radiating from the valve centre and valve mantle with sipho marginalis; scale bar = 38 μm. Fig. 77. Interior openings from rimoportulae lying midway between ocelli; scale bar = 43 μm. Fig. 78. Ocellus with radial rows of porelli within a broad raised hyaline rim; scale bar = 7.5 μm. Fig. 79. Exterior with opening from rimoportula, poroid areolae occluded by vela and an occasional specialised pore (arrow); scale bar = 5 μm. Fig. 80. Interior with opening of rimoportula; scale bar = 5 μm." pageId="22" pageNumber="23">Fig. 78</figureCitation>
). Valve surface slightly concave with a central transapically aligned oval ridge enclosing a small raised central area (
<figureCitation id="02CBAA90F40AFF812756FDD4FAD62562" box="[1282,1368,557,582]" captionStart="FIGURES 7680" captionStartId="23.[136,243,1841,1862]" captionTargetBox="[169,1419,282,1805]" captionTargetId="figure-33@23.[150,1436,265,1820]" captionTargetPageId="23" captionText="FIGURES 7680. Mastodiscus radiatus (Bailey)A.K.S. Prasad and Nienow (Pensacola, Florida, USA). Fig. 76. Tilted valve exterior with two large opposing rimmed ocelli, rows of poroid areolae radiating from the valve centre and valve mantle with sipho marginalis; scale bar = 38 μm. Fig. 77. Interior openings from rimoportulae lying midway between ocelli; scale bar = 43 μm. Fig. 78. Ocellus with radial rows of porelli within a broad raised hyaline rim; scale bar = 7.5 μm. Fig. 79. Exterior with opening from rimoportula, poroid areolae occluded by vela and an occasional specialised pore (arrow); scale bar = 5 μm. Fig. 80. Interior with opening of rimoportula; scale bar = 5 μm." pageId="22" pageNumber="23">Fig. 77</figureCitation>
). Valve face bordered by a sipho ridge, a sipho marginalis occupying valve mantle. Areolae poroid arranged in primary and secondary rows radiating towards central area, c. 5 areolae in 10μm. Areolae occluded on exterior by sunken cribra (
<figureCitation id="02CBAA90F40AFF8122C4FD63FF692597" box="[144,231,666,691]" captionStart="FIGURES 7680" captionStartId="23.[136,243,1841,1862]" captionTargetBox="[169,1419,282,1805]" captionTargetId="figure-33@23.[150,1436,265,1820]" captionTargetPageId="23" captionText="FIGURES 7680. Mastodiscus radiatus (Bailey)A.K.S. Prasad and Nienow (Pensacola, Florida, USA). Fig. 76. Tilted valve exterior with two large opposing rimmed ocelli, rows of poroid areolae radiating from the valve centre and valve mantle with sipho marginalis; scale bar = 38 μm. Fig. 77. Interior openings from rimoportulae lying midway between ocelli; scale bar = 43 μm. Fig. 78. Ocellus with radial rows of porelli within a broad raised hyaline rim; scale bar = 7.5 μm. Fig. 79. Exterior with opening from rimoportula, poroid areolae occluded by vela and an occasional specialised pore (arrow); scale bar = 5 μm. Fig. 80. Interior with opening of rimoportula; scale bar = 5 μm." pageId="22" pageNumber="23">Fig. 79</figureCitation>
). groups of 69 small poroid areolae in a ring (= specialised pores?) at irregular intervals (
<figureCitation id="02CBAA90F40AFF8126ACFD63FAC22597" box="[1272,1356,666,691]" captionStart="FIGURES 7680" captionStartId="23.[136,243,1841,1862]" captionTargetBox="[169,1419,282,1805]" captionTargetId="figure-33@23.[150,1436,265,1820]" captionTargetPageId="23" captionText="FIGURES 7680. Mastodiscus radiatus (Bailey)A.K.S. Prasad and Nienow (Pensacola, Florida, USA). Fig. 76. Tilted valve exterior with two large opposing rimmed ocelli, rows of poroid areolae radiating from the valve centre and valve mantle with sipho marginalis; scale bar = 38 μm. Fig. 77. Interior openings from rimoportulae lying midway between ocelli; scale bar = 43 μm. Fig. 78. Ocellus with radial rows of porelli within a broad raised hyaline rim; scale bar = 7.5 μm. Fig. 79. Exterior with opening from rimoportula, poroid areolae occluded by vela and an occasional specialised pore (arrow); scale bar = 5 μm. Fig. 80. Interior with opening of rimoportula; scale bar = 5 μm." pageId="22" pageNumber="23">Fig. 79</figureCitation>
, arrow). Rimoportulae 2, positioned marginally equidistant from ocelli (
<figureCitation id="02CBAA90F40AFF81211AFD47FC2F25F3" box="[846,929,702,727]" captionStart="FIGURES 7680" captionStartId="23.[136,243,1841,1862]" captionTargetBox="[169,1419,282,1805]" captionTargetId="figure-33@23.[150,1436,265,1820]" captionTargetPageId="23" captionText="FIGURES 7680. Mastodiscus radiatus (Bailey)A.K.S. Prasad and Nienow (Pensacola, Florida, USA). Fig. 76. Tilted valve exterior with two large opposing rimmed ocelli, rows of poroid areolae radiating from the valve centre and valve mantle with sipho marginalis; scale bar = 38 μm. Fig. 77. Interior openings from rimoportulae lying midway between ocelli; scale bar = 43 μm. Fig. 78. Ocellus with radial rows of porelli within a broad raised hyaline rim; scale bar = 7.5 μm. Fig. 79. Exterior with opening from rimoportula, poroid areolae occluded by vela and an occasional specialised pore (arrow); scale bar = 5 μm. Fig. 80. Interior with opening of rimoportula; scale bar = 5 μm." pageId="22" pageNumber="23">Fig. 77</figureCitation>
), external opening through short hollow spine, internally radially aligned slit across raised lips (
<figureCitation id="02CBAA90F40AFF8120FCFD1BFD7325DF" box="[680,765,738,763]" captionStart="FIGURES 7680" captionStartId="23.[136,243,1841,1862]" captionTargetBox="[169,1419,282,1805]" captionTargetId="figure-33@23.[150,1436,265,1820]" captionTargetPageId="23" captionText="FIGURES 7680. Mastodiscus radiatus (Bailey)A.K.S. Prasad and Nienow (Pensacola, Florida, USA). Fig. 76. Tilted valve exterior with two large opposing rimmed ocelli, rows of poroid areolae radiating from the valve centre and valve mantle with sipho marginalis; scale bar = 38 μm. Fig. 77. Interior openings from rimoportulae lying midway between ocelli; scale bar = 43 μm. Fig. 78. Ocellus with radial rows of porelli within a broad raised hyaline rim; scale bar = 7.5 μm. Fig. 79. Exterior with opening from rimoportula, poroid areolae occluded by vela and an occasional specialised pore (arrow); scale bar = 5 μm. Fig. 80. Interior with opening of rimoportula; scale bar = 5 μm." pageId="22" pageNumber="23">Fig. 80</figureCitation>
).
</paragraph>
<paragraph id="9A4FB615F40AFF8122E9FCFFFA8B243B" blockId="22.[136,1452,484,799]" box="[189,1285,774,799]" pageId="22" pageNumber="23">
<emphasis id="A8846A07F40AFF8122E9FCFFFE0F243B" bold="true" box="[189,385,774,799]" pageId="22" pageNumber="23">Observations:—</emphasis>
The description above is based on material from Pensacola,
<collectingRegion id="583478F7F40AFF812677FCFFFBF9243B" box="[1059,1143,774,799]" country="United States of America" name="Florida" pageId="22" pageNumber="23">Florida</collectingRegion>
,
<collectingCountry id="E2E7F685F40AFF8126D6FCFFFB36243B" box="[1154,1208,774,799]" name="United States of America" pageId="22" pageNumber="23">USA</collectingCountry>
(
<collectionCode id="FCE12ED0F40AFF81269CFCFFFB77243B" box="[1224,1273,774,799]" country="United Kingdom" name="Bristol Museum" pageId="22" pageNumber="23">BM</collectionCode>
).
</paragraph>
</subSubSection>
</treatment>
</document>

View file

@ -0,0 +1,169 @@
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<emphasis id="A8846A07F40FFF8422DCFD8DFEE225A9" bold="true" box="[136,364,628,653]" italics="true" pageId="19" pageNumber="20">Zygoceros rhombus</emphasis>
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;
<bibRefCitation id="FE61CBE4F40FFF842022FD8DFCA725A9" author="Ehrenberg, C. G." box="[630,809,628,653]" pageId="19" pageNumber="20" pagination="152 - 159" refId="ref27003" refString="Ehrenberg, C. G. (1839) […] las uber jetzt wirklich noch zahlreich lebende Thier-Arten der Kreideformation der Erde. Bericht uber die zur Bekanntmachung geeigneten Verhandlungen der Koniglich-Preussischen Akademie der Wissenschaften zu Berlin [1839]: 152 - 159." type="journal article" year="1839">Ehrenberg 1839</bibRefCitation>
[
<bibRefCitation id="FE61CBE4F40FFF842163FD8DFCF925A9" author="Ehrenberg, C. G." box="[823,887,628,653]" pageId="19" pageNumber="20" pagination="81 - 174" refId="ref27127" refString="Ehrenberg, C. G. (1841) Uber noch jetzt zahlreich lebende Theirarten der Kriedebildung und den Organismus der Polythalamien. Abhandlungen der Konigliche Akademie der Wissenschaften zu Berlin (1839): 81 - 174, pls. 1 - 4." type="journal article" year="1841">1841</bibRefCitation>
]: 160, pl. IV, fig. XII;
<treatmentCitation id="1B519004F40FFF84263AFD8DFAD525A9" author="Ehrenberg, C. G." box="[1134,1371,628,653]" page="80" pageId="19" pageNumber="20" year="1840">
<bibRefCitation id="FE61CBE4F40FFF84263AFD8DFAD525A9" author="Ehrenberg, C. G." box="[1134,1371,628,653]" pageId="19" pageNumber="20" refId="ref27088" refString="Ehrenberg, C. G. (1840 b) Uber noch zahlreich jetzt lebende Thierarten der Kreidebildung und den Organismus der Polythalamien, Berlin, 94 pp., 4 pls. [preprint of 1841]." type="book" year="1840">Ehrenberg 1840b: 80</bibRefCitation>
</treatmentCitation>
, pl. IV,
</treatmentCitationGroup>
</heading>
</paragraph>
<paragraph id="9A4FB615F40FFF8422DCFD61FEF22595" blockId="19.[136,1452,664,831]" box="[136,380,664,689]" pageId="19" pageNumber="20">
fig. XII) (
<figureCitation id="02CBAA90F40FFF8422A0FD61FEFA2595" box="[244,372,664,689]" captionStart="FIGURES 6571" captionStartId="20.[136,243,1866,1887]" captionTargetBox="[215,1374,188,1825]" captionTargetId="figure-15@20.[201,1387,173,1842]" captionTargetPageId="20" captionText="FIGURES 6571. Zygoceros rhombus Ehrenberg (Tampa, Florida). Fig. 65. Valve exterior, short elevations with ocelli at apices and submarginal spines, which are the openings from rimoportulae; scale bar = 20 μm. Fig. 66. Valve interior with radial rows of foramina and submarginal openings of rimoportulae; scale bar = 20 μm. Fig. 67. Exterior with ridged opening from fractured rimoportula, continuous cribrum linked by passage pores and buttressed branched spines covering valve; scale bar = 2 μm. Fig. 68. Rimmed ocellus at summit of elevation, narrow hyaline valve margin with raised border; scale bar = 5 μm. Fig. 69. Exterior with barely raised elevations, submarginal rimoportulae opening through spines; scale bar = 20 μm. Fig. 70. Interior with foramina and two openings from rimoportulae; scale bar = 5 μm. Fig. 71. Triangular valve with attached girdle bands, three short elevations with ocellus at summit; scale bar = 20 μm." pageId="19" pageNumber="20">Figs 6571</figureCitation>
)
</paragraph>
</subSubSection>
<subSubSection id="D2EAE59EF40FFF8422DCFD47FEF425D3" pageId="19" pageNumber="20" type="description">
<paragraph id="9A4FB615F40FFF8422DCFD47FEF425D3" blockId="19.[136,1452,664,831]" pageId="19" pageNumber="20">
<emphasis id="A8846A07F40FFF8422DCFD47FF7F25F7" bold="true" box="[136,241,702,723]" pageId="19" pageNumber="20">Synonyms</emphasis>
:—
<taxonomicName id="5DF0CD96F40FFF842344FD47FC9525F7" authority="(Ehrenberg) W. Smith (1856: 49" authorityName="W. Smith" authorityYear="1856" baseAuthorityName="Ehrenberg" box="[272,795,702,723]" class="Bacillariophyceae" family="Biddulphiaceae" genus="Biddulphia" higherTaxonomySource="GBIF" kingdom="Chromista" order="Biddulphiales" pageId="19" pageNumber="20" phylum="Ochrophyta" rank="species" species="rhombus">
<emphasis id="A8846A07F40FFF842344FD47FE5825F7" box="[272,470,702,723]" italics="true" pageId="19" pageNumber="20">Biddulphia rhombus</emphasis>
(Ehrenberg) W.
<bibRefCitation id="FE61CBE4F40FFF84202EFD47FC9525F7" author="Smith, W." box="[634,795,702,723]" pageId="19" pageNumber="20" refId="ref31511" refString="Smith, W. (1856) Synopsis of the British Diatomaceae; with remarks of their structure, functions and distribution; and instructions for collecting and preserving specimens. 2. John Van Voorst, London, 107 pp." type="book" year="1856">Smith (1856: 49</bibRefCitation>
</taxonomicName>
, pl. 45, fig. 320; pl. 61, fig. 320)
<taxonomicName id="5DF0CD96F40FFF84263CFD47FEF425D3" authority="R. Jahn &amp; Kusber (2004: 584)" authorityName="R. Jahn &amp; Kusber" authorityPageNumber="584" authorityYear="2004" class="Collembola" family="Odontellidae" genus="Odontella" kingdom="Animalia" order="Poduromorpha" pageId="19" pageNumber="20" phylum="Arthropoda" rank="species" species="rhomboides">
<emphasis id="A8846A07F40FFF84263CFD47FACE25F7" box="[1128,1344,702,723]" italics="true" pageId="19" pageNumber="20">Odontella rhomboides</emphasis>
R.
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</taxonomicName>
</paragraph>
</subSubSection>
<subSubSection id="D2EAE59EF40FFF8422DCFCFFFBD92279" pageId="19" pageNumber="20" type="materials_examined">
<paragraph id="9A4FB615F40FFF8422DCFCFFFC4A241B" blockId="19.[136,1452,664,831]" pageId="19" pageNumber="20">
<emphasis id="A8846A07F40FFF8422DCFCFFFF54243F" bold="true" box="[136,218,774,795]" pageId="19" pageNumber="20">Type:—</emphasis>
Cuxhaven [
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], 540043-4
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: fig. 45); 540211-5
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: fig. 44) and 360805-c
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<bibRefCitation id="FE61CBE4F40FFF842035FCD3FD7F241B" author="Sar, E. A. &amp; Sunesen, I. &amp; Jahn, R. &amp; Kusber, W-H. &amp; Lavigne, A. S." box="[609,753,810,831]" pageId="19" pageNumber="20" pagination="341 - 353" refId="ref30798" refString="Sar, E. A., Sunesen, I., Jahn, R., Kusber, W-H. &amp; Lavigne, A. S. (2007) Revision of Odontella atlantica (Frenguelli) Sar comb. et. stat. nov. with comparison to two related species O. rhombus (Ehrenb.) Kutz and O. rhomboides R. Jahn et Kusber. Diatom Research 22: 341 - 353. https: // doi. org / 10.1080 / 0269249 X. 2007.9705720" type="journal article" year="2007">
Sar
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2007
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: fig. 3),
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</paragraph>
<paragraph id="9A4FB615F40FFF8422DCFC89FD3124F5" blockId="19.[136,1452,880,1373]" pageId="19" pageNumber="20">
In girdle view frustules square to rectangular, apical axis 50108μm, transapical axis 4060μm, with central set of girdle bands. Valves with narrow mantles, indented, extending to narrow mantle flange, with polar elevations that extend outwards to lie in line with girdle (
<figureCitation id="02CBAA90F40FFF84200AFC41FD3D24F5" box="[606,691,952,977]" captionStart="FIGURES 6571" captionStartId="20.[136,243,1866,1887]" captionTargetBox="[215,1374,188,1825]" captionTargetId="figure-15@20.[201,1387,173,1842]" captionTargetPageId="20" captionText="FIGURES 6571. Zygoceros rhombus Ehrenberg (Tampa, Florida). Fig. 65. Valve exterior, short elevations with ocelli at apices and submarginal spines, which are the openings from rimoportulae; scale bar = 20 μm. Fig. 66. Valve interior with radial rows of foramina and submarginal openings of rimoportulae; scale bar = 20 μm. Fig. 67. Exterior with ridged opening from fractured rimoportula, continuous cribrum linked by passage pores and buttressed branched spines covering valve; scale bar = 2 μm. Fig. 68. Rimmed ocellus at summit of elevation, narrow hyaline valve margin with raised border; scale bar = 5 μm. Fig. 69. Exterior with barely raised elevations, submarginal rimoportulae opening through spines; scale bar = 20 μm. Fig. 70. Interior with foramina and two openings from rimoportulae; scale bar = 5 μm. Fig. 71. Triangular valve with attached girdle bands, three short elevations with ocellus at summit; scale bar = 20 μm." pageId="19" pageNumber="20">Fig. 69</figureCitation>
).
</paragraph>
<paragraph id="9A4FB615F40FFF8422E9FC25FC9323A1" blockId="19.[136,1452,880,1373]" pageId="19" pageNumber="20">
Valve outline lanceolate or triangular (
<figureCitation id="02CBAA90F40FFF842028FC25FC8A24D1" box="[636,772,988,1013]" captionStart="FIGURES 6571" captionStartId="20.[136,243,1866,1887]" captionTargetBox="[215,1374,188,1825]" captionTargetId="figure-15@20.[201,1387,173,1842]" captionTargetPageId="20" captionText="FIGURES 6571. Zygoceros rhombus Ehrenberg (Tampa, Florida). Fig. 65. Valve exterior, short elevations with ocelli at apices and submarginal spines, which are the openings from rimoportulae; scale bar = 20 μm. Fig. 66. Valve interior with radial rows of foramina and submarginal openings of rimoportulae; scale bar = 20 μm. Fig. 67. Exterior with ridged opening from fractured rimoportula, continuous cribrum linked by passage pores and buttressed branched spines covering valve; scale bar = 2 μm. Fig. 68. Rimmed ocellus at summit of elevation, narrow hyaline valve margin with raised border; scale bar = 5 μm. Fig. 69. Exterior with barely raised elevations, submarginal rimoportulae opening through spines; scale bar = 20 μm. Fig. 70. Interior with foramina and two openings from rimoportulae; scale bar = 5 μm. Fig. 71. Triangular valve with attached girdle bands, three short elevations with ocellus at summit; scale bar = 20 μm." pageId="19" pageNumber="20">Figs 65, 66</figureCitation>
), length 40180μm, breadth 3050μm, with rim of mantle flange extending slightly beyond valve outline (
<figureCitation id="02CBAA90F40FFF8420CCFBF9FD65233D" box="[664,747,1024,1049]" captionStart="FIGURES 6571" captionStartId="20.[136,243,1866,1887]" captionTargetBox="[215,1374,188,1825]" captionTargetId="figure-15@20.[201,1387,173,1842]" captionTargetPageId="20" captionText="FIGURES 6571. Zygoceros rhombus Ehrenberg (Tampa, Florida). Fig. 65. Valve exterior, short elevations with ocelli at apices and submarginal spines, which are the openings from rimoportulae; scale bar = 20 μm. Fig. 66. Valve interior with radial rows of foramina and submarginal openings of rimoportulae; scale bar = 20 μm. Fig. 67. Exterior with ridged opening from fractured rimoportula, continuous cribrum linked by passage pores and buttressed branched spines covering valve; scale bar = 2 μm. Fig. 68. Rimmed ocellus at summit of elevation, narrow hyaline valve margin with raised border; scale bar = 5 μm. Fig. 69. Exterior with barely raised elevations, submarginal rimoportulae opening through spines; scale bar = 20 μm. Fig. 70. Interior with foramina and two openings from rimoportulae; scale bar = 5 μm. Fig. 71. Triangular valve with attached girdle bands, three short elevations with ocellus at summit; scale bar = 20 μm." pageId="19" pageNumber="20">Fig. 67</figureCitation>
). Valve surface almost flat with a barely raised elevation at each pole (
<figureCitation id="02CBAA90F40FFF84229DFBDDFE902319" box="[201,286,1060,1085]" captionStart="FIGURES 6571" captionStartId="20.[136,243,1866,1887]" captionTargetBox="[215,1374,188,1825]" captionTargetId="figure-15@20.[201,1387,173,1842]" captionTargetPageId="20" captionText="FIGURES 6571. Zygoceros rhombus Ehrenberg (Tampa, Florida). Fig. 65. Valve exterior, short elevations with ocelli at apices and submarginal spines, which are the openings from rimoportulae; scale bar = 20 μm. Fig. 66. Valve interior with radial rows of foramina and submarginal openings of rimoportulae; scale bar = 20 μm. Fig. 67. Exterior with ridged opening from fractured rimoportula, continuous cribrum linked by passage pores and buttressed branched spines covering valve; scale bar = 2 μm. Fig. 68. Rimmed ocellus at summit of elevation, narrow hyaline valve margin with raised border; scale bar = 5 μm. Fig. 69. Exterior with barely raised elevations, submarginal rimoportulae opening through spines; scale bar = 20 μm. Fig. 70. Interior with foramina and two openings from rimoportulae; scale bar = 5 μm. Fig. 71. Triangular valve with attached girdle bands, three short elevations with ocellus at summit; scale bar = 20 μm." pageId="19" pageNumber="20">Fig. 69</figureCitation>
). Summit of elevation with hyaline rimmed ocellus positioned mostly on dorsal side (
<figureCitation id="02CBAA90F40FFF8426BFFBDDFACE2319" box="[1259,1344,1060,1085]" captionStart="FIGURES 6571" captionStartId="20.[136,243,1866,1887]" captionTargetBox="[215,1374,188,1825]" captionTargetId="figure-15@20.[201,1387,173,1842]" captionTargetPageId="20" captionText="FIGURES 6571. Zygoceros rhombus Ehrenberg (Tampa, Florida). Fig. 65. Valve exterior, short elevations with ocelli at apices and submarginal spines, which are the openings from rimoportulae; scale bar = 20 μm. Fig. 66. Valve interior with radial rows of foramina and submarginal openings of rimoportulae; scale bar = 20 μm. Fig. 67. Exterior with ridged opening from fractured rimoportula, continuous cribrum linked by passage pores and buttressed branched spines covering valve; scale bar = 2 μm. Fig. 68. Rimmed ocellus at summit of elevation, narrow hyaline valve margin with raised border; scale bar = 5 μm. Fig. 69. Exterior with barely raised elevations, submarginal rimoportulae opening through spines; scale bar = 20 μm. Fig. 70. Interior with foramina and two openings from rimoportulae; scale bar = 5 μm. Fig. 71. Triangular valve with attached girdle bands, three short elevations with ocellus at summit; scale bar = 20 μm." pageId="19" pageNumber="20">Fig. 68</figureCitation>
). Areolae loculate with continuous cribrum linked by passage pores (
<figureCitation id="02CBAA90F40FFF842142FBB1FC1A2345" box="[790,916,1096,1121]" captionStart="FIGURES 6571" captionStartId="20.[136,243,1866,1887]" captionTargetBox="[215,1374,188,1825]" captionTargetId="figure-15@20.[201,1387,173,1842]" captionTargetPageId="20" captionText="FIGURES 6571. Zygoceros rhombus Ehrenberg (Tampa, Florida). Fig. 65. Valve exterior, short elevations with ocelli at apices and submarginal spines, which are the openings from rimoportulae; scale bar = 20 μm. Fig. 66. Valve interior with radial rows of foramina and submarginal openings of rimoportulae; scale bar = 20 μm. Fig. 67. Exterior with ridged opening from fractured rimoportula, continuous cribrum linked by passage pores and buttressed branched spines covering valve; scale bar = 2 μm. Fig. 68. Rimmed ocellus at summit of elevation, narrow hyaline valve margin with raised border; scale bar = 5 μm. Fig. 69. Exterior with barely raised elevations, submarginal rimoportulae opening through spines; scale bar = 20 μm. Fig. 70. Interior with foramina and two openings from rimoportulae; scale bar = 5 μm. Fig. 71. Triangular valve with attached girdle bands, three short elevations with ocellus at summit; scale bar = 20 μm." pageId="19" pageNumber="20">Figs 67, 68</figureCitation>
) with 8 areolae in 10μm in transapical rows that meet at central apical line (annulus), with 8 striae in 10μm.
</paragraph>
<paragraph id="9A4FB615F40FFF8422E9FB69FD10221D" blockId="19.[136,1452,880,1373]" pageId="19" pageNumber="20">
A regular series of buttressed spines with branched tips and branched spines situated above locular walls (
<figureCitation id="02CBAA90F40FFF84272AFB69FF2623E9" captionStart="FIGURES 6571" captionStartId="20.[136,243,1866,1887]" captionTargetBox="[215,1374,188,1825]" captionTargetId="figure-15@20.[201,1387,173,1842]" captionTargetPageId="20" captionText="FIGURES 6571. Zygoceros rhombus Ehrenberg (Tampa, Florida). Fig. 65. Valve exterior, short elevations with ocelli at apices and submarginal spines, which are the openings from rimoportulae; scale bar = 20 μm. Fig. 66. Valve interior with radial rows of foramina and submarginal openings of rimoportulae; scale bar = 20 μm. Fig. 67. Exterior with ridged opening from fractured rimoportula, continuous cribrum linked by passage pores and buttressed branched spines covering valve; scale bar = 2 μm. Fig. 68. Rimmed ocellus at summit of elevation, narrow hyaline valve margin with raised border; scale bar = 5 μm. Fig. 69. Exterior with barely raised elevations, submarginal rimoportulae opening through spines; scale bar = 20 μm. Fig. 70. Interior with foramina and two openings from rimoportulae; scale bar = 5 μm. Fig. 71. Triangular valve with attached girdle bands, three short elevations with ocellus at summit; scale bar = 20 μm." pageId="19" pageNumber="20">Fig. 67</figureCitation>
). 26 sub-marginal rimoportulae open through short spine (
<figureCitation id="02CBAA90F40FFF842112FB4DFC1923E9" box="[838,919,1204,1229]" captionStart="FIGURES 6571" captionStartId="20.[136,243,1866,1887]" captionTargetBox="[215,1374,188,1825]" captionTargetId="figure-15@20.[201,1387,173,1842]" captionTargetPageId="20" captionText="FIGURES 6571. Zygoceros rhombus Ehrenberg (Tampa, Florida). Fig. 65. Valve exterior, short elevations with ocelli at apices and submarginal spines, which are the openings from rimoportulae; scale bar = 20 μm. Fig. 66. Valve interior with radial rows of foramina and submarginal openings of rimoportulae; scale bar = 20 μm. Fig. 67. Exterior with ridged opening from fractured rimoportula, continuous cribrum linked by passage pores and buttressed branched spines covering valve; scale bar = 2 μm. Fig. 68. Rimmed ocellus at summit of elevation, narrow hyaline valve margin with raised border; scale bar = 5 μm. Fig. 69. Exterior with barely raised elevations, submarginal rimoportulae opening through spines; scale bar = 20 μm. Fig. 70. Interior with foramina and two openings from rimoportulae; scale bar = 5 μm. Fig. 71. Triangular valve with attached girdle bands, three short elevations with ocellus at summit; scale bar = 20 μm." pageId="19" pageNumber="20">Fig. 67</figureCitation>
) buttressed at base on valve exterior (if 2, each positioned at base of elevation
<figureCitation id="02CBAA90F40FFF8423ADFB21FDC523D5" box="[505,587,1240,1265]" captionStart="FIGURES 6571" captionStartId="20.[136,243,1866,1887]" captionTargetBox="[215,1374,188,1825]" captionTargetId="figure-15@20.[201,1387,173,1842]" captionTargetPageId="20" captionText="FIGURES 6571. Zygoceros rhombus Ehrenberg (Tampa, Florida). Fig. 65. Valve exterior, short elevations with ocelli at apices and submarginal spines, which are the openings from rimoportulae; scale bar = 20 μm. Fig. 66. Valve interior with radial rows of foramina and submarginal openings of rimoportulae; scale bar = 20 μm. Fig. 67. Exterior with ridged opening from fractured rimoportula, continuous cribrum linked by passage pores and buttressed branched spines covering valve; scale bar = 2 μm. Fig. 68. Rimmed ocellus at summit of elevation, narrow hyaline valve margin with raised border; scale bar = 5 μm. Fig. 69. Exterior with barely raised elevations, submarginal rimoportulae opening through spines; scale bar = 20 μm. Fig. 70. Interior with foramina and two openings from rimoportulae; scale bar = 5 μm. Fig. 71. Triangular valve with attached girdle bands, three short elevations with ocellus at summit; scale bar = 20 μm." pageId="19" pageNumber="20">Fig. 68</figureCitation>
); on interior through short barely raised slits (
<figureCitation id="02CBAA90F40FFF842630FB21FB3523D5" box="[1124,1211,1240,1265]" captionStart="FIGURES 6571" captionStartId="20.[136,243,1866,1887]" captionTargetBox="[215,1374,188,1825]" captionTargetId="figure-15@20.[201,1387,173,1842]" captionTargetPageId="20" captionText="FIGURES 6571. Zygoceros rhombus Ehrenberg (Tampa, Florida). Fig. 65. Valve exterior, short elevations with ocelli at apices and submarginal spines, which are the openings from rimoportulae; scale bar = 20 μm. Fig. 66. Valve interior with radial rows of foramina and submarginal openings of rimoportulae; scale bar = 20 μm. Fig. 67. Exterior with ridged opening from fractured rimoportula, continuous cribrum linked by passage pores and buttressed branched spines covering valve; scale bar = 2 μm. Fig. 68. Rimmed ocellus at summit of elevation, narrow hyaline valve margin with raised border; scale bar = 5 μm. Fig. 69. Exterior with barely raised elevations, submarginal rimoportulae opening through spines; scale bar = 20 μm. Fig. 70. Interior with foramina and two openings from rimoportulae; scale bar = 5 μm. Fig. 71. Triangular valve with attached girdle bands, three short elevations with ocellus at summit; scale bar = 20 μm." pageId="19" pageNumber="20">Fig. 70</figureCitation>
). Girdle bands open, valvocopula with well-developed pars interior (
<figureCitation id="02CBAA90F40FFF8420F1FB05FD752231" box="[677,763,1276,1301]" captionStart="FIGURES 6571" captionStartId="20.[136,243,1866,1887]" captionTargetBox="[215,1374,188,1825]" captionTargetId="figure-15@20.[201,1387,173,1842]" captionTargetPageId="20" captionText="FIGURES 6571. Zygoceros rhombus Ehrenberg (Tampa, Florida). Fig. 65. Valve exterior, short elevations with ocelli at apices and submarginal spines, which are the openings from rimoportulae; scale bar = 20 μm. Fig. 66. Valve interior with radial rows of foramina and submarginal openings of rimoportulae; scale bar = 20 μm. Fig. 67. Exterior with ridged opening from fractured rimoportula, continuous cribrum linked by passage pores and buttressed branched spines covering valve; scale bar = 2 μm. Fig. 68. Rimmed ocellus at summit of elevation, narrow hyaline valve margin with raised border; scale bar = 5 μm. Fig. 69. Exterior with barely raised elevations, submarginal rimoportulae opening through spines; scale bar = 20 μm. Fig. 70. Interior with foramina and two openings from rimoportulae; scale bar = 5 μm. Fig. 71. Triangular valve with attached girdle bands, three short elevations with ocellus at summit; scale bar = 20 μm." pageId="19" pageNumber="20">Fig. 71</figureCitation>
). Each band with narrow hyaline margins bordering vertical rows of poroid areolae, c.
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10μm (
<figureCitation id="02CBAA90F40FFF842069FAD9FD1E221D" box="[573,656,1312,1337]" captionStart="FIGURES 6571" captionStartId="20.[136,243,1866,1887]" captionTargetBox="[215,1374,188,1825]" captionTargetId="figure-15@20.[201,1387,173,1842]" captionTargetPageId="20" captionText="FIGURES 6571. Zygoceros rhombus Ehrenberg (Tampa, Florida). Fig. 65. Valve exterior, short elevations with ocelli at apices and submarginal spines, which are the openings from rimoportulae; scale bar = 20 μm. Fig. 66. Valve interior with radial rows of foramina and submarginal openings of rimoportulae; scale bar = 20 μm. Fig. 67. Exterior with ridged opening from fractured rimoportula, continuous cribrum linked by passage pores and buttressed branched spines covering valve; scale bar = 2 μm. Fig. 68. Rimmed ocellus at summit of elevation, narrow hyaline valve margin with raised border; scale bar = 5 μm. Fig. 69. Exterior with barely raised elevations, submarginal rimoportulae opening through spines; scale bar = 20 μm. Fig. 70. Interior with foramina and two openings from rimoportulae; scale bar = 5 μm. Fig. 71. Triangular valve with attached girdle bands, three short elevations with ocellus at summit; scale bar = 20 μm." pageId="19" pageNumber="20">Fig. 71</figureCitation>
).
</paragraph>
<paragraph id="9A4FB615F40FFF8422E9FABDFBD92279" blockId="19.[136,1452,880,1373]" box="[189,1111,1348,1373]" pageId="19" pageNumber="20">
<emphasis id="A8846A07F40FFF8422E9FABDFE0F2279" bold="true" box="[189,385,1348,1373]" pageId="19" pageNumber="20">Observations:—</emphasis>
The description above is based on material from Tampa,
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@ -0,0 +1,82 @@
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<paragraph id="9A4FB615F435FFBE22DCFED6FBCD2504" blockId="41.[136,1452,303,580]" pageId="41" pageNumber="42">Valve outline circular, lying opposite each other a barely raised narrow elevation with a circular ocellus at summit. Valve face almost flat with a narrow slightly convex valve mantle bordering an expanded hyaline valve margin. Valve face, mantle and elevations covered in an irregular network of false pseudoloculi. Lying within each “loculus” a single, small poroid areola occluded by a velum. These appear to be identical throughout the valve, no specialised pores seen. In a submarginal position, equidistant between the elevations lies the external opening of a rimoportula. The opening is through a long slender tube, slightly wider at base than summit, while interior opening a slit across a papillus. Girdle bands with vertical rows of poroid areolae, valvocopula and remaining copulae open.</paragraph>
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<figureCitation id="02CBAA90F437FFBC211AFCFAFC642438" box="[846,1002,771,796]" captionStart-0="FIGURES 148152" captionStart-1="FIGURES 153156" captionStartId-0="42.[136,243,1739,1760]" captionStartId-1="44.[136,243,1796,1817]" captionTargetBox-0="[172,1418,194,1697]" captionTargetBox-1="[238,1352,185,1758]" captionTargetId-0="figure-15@42.[150,1435,175,1717]" captionTargetId-1="figure-15@44.[221,1366,173,1772]" captionTargetPageId-0="42" captionTargetPageId-1="44" captionText-0="FIGURES 148152. Ralfsiella smithii (=Cerataulus smithii Ralfs in Pritchard) (Beaufort, South Carolina, USA). Fig. 148. Circular valve face with opposing narrow submarginal elevations; positioned midway submarginal hollow spines, the exterior openings of rimoportulae; valve surface covered in a mostly radial pattern of false pseudoloculi, valve mantle slightly indented where it joins narrow hyaline valve margin; scale bar = 10 μm. Fig. 149. Summit of elevation with rimmed ocellus; scale bar = 2 μm. Fig. 150. Frustule with attached girdle bands, flat valve face merging into rounded mantle, barely raised elevations; scale bar = 10 μm. Fig. 151. Irregular false pseudoloculi, basal layer with a single poroid areola occluded by a simple raised cribrum; scale bar = 1 μm." captionText-1="FIGURES 153156. Details of two species currently placed in Cerataulus but with characters associated with Trieres and Parodontella. Figs 153,155.Cerataulus strelnikovae P.A. Sims and D.M. Williams, sp. nov. (Vema Cruise 17, core 107, 175cm). Fig. 152. Valve exterior, broadly lanceolate valve with apical elevations lying in opposing directions, 5 stout subcentral spines, the openings of rimoportulae surrounding a central annulus; scale bar = 10 μm. Fig. 155. Detail of transapical rows of irregularly arranged fine poresr within annulus, linked spinules covering annulus (sternum); scale bar = 1 μm. Figs 154156. Cerataulus granulata (Roper) P.A. Sims &amp; D.M. Williams, comb. nov. (“Wunderluss”, locality unknown, ex Brigger colln, BM). Fig. 154. Valve exterior, lanceolate valve with elevations in opposing directions, an ocellus on summit, 2 stout hollow spines, the openings of rimoportulae lying centrally in a subpolar position on opposing sides of a central sternum; scale bar = 10 μm. Fig. 155. Detail of valve exterior with transapical quadruple rows of fine pores meeting annulus (sternum) extending between rimoportulae; scale bar = 1 μm." pageId="43" pageNumber="44">Figs 152153</figureCitation>
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Valves bipolar, apices with short, squat elevations facing opposite directions, rimmed ocellus slanted dorsally on summit (
<figureCitation id="02CBAA90F437FFBC22A4FC96FED924AC" box="[240,343,879,904]" captionStart="FIGURES 148152" captionStartId="42.[136,243,1739,1760]" captionTargetBox="[172,1418,194,1697]" captionTargetId="figure-15@42.[150,1435,175,1717]" captionTargetPageId="42" captionText="FIGURES 148152. Ralfsiella smithii (=Cerataulus smithii Ralfs in Pritchard) (Beaufort, South Carolina, USA). Fig. 148. Circular valve face with opposing narrow submarginal elevations; positioned midway submarginal hollow spines, the exterior openings of rimoportulae; valve surface covered in a mostly radial pattern of false pseudoloculi, valve mantle slightly indented where it joins narrow hyaline valve margin; scale bar = 10 μm. Fig. 149. Summit of elevation with rimmed ocellus; scale bar = 2 μm. Fig. 150. Frustule with attached girdle bands, flat valve face merging into rounded mantle, barely raised elevations; scale bar = 10 μm. Fig. 151. Irregular false pseudoloculi, basal layer with a single poroid areola occluded by a simple raised cribrum; scale bar = 1 μm." pageId="43" pageNumber="44">Fig. 152</figureCitation>
). Valves distinctly convex with valve centre flattening out. Valve structure loculate with well-developed annulus extending between elevations (
<figureCitation id="02CBAA90F437FFBC2092FC6AFCA72488" box="[710,809,915,940]" captionStart="FIGURES 148152" captionStartId="42.[136,243,1739,1760]" captionTargetBox="[172,1418,194,1697]" captionTargetId="figure-15@42.[150,1435,175,1717]" captionTargetPageId="42" captionText="FIGURES 148152. Ralfsiella smithii (=Cerataulus smithii Ralfs in Pritchard) (Beaufort, South Carolina, USA). Fig. 148. Circular valve face with opposing narrow submarginal elevations; positioned midway submarginal hollow spines, the exterior openings of rimoportulae; valve surface covered in a mostly radial pattern of false pseudoloculi, valve mantle slightly indented where it joins narrow hyaline valve margin; scale bar = 10 μm. Fig. 149. Summit of elevation with rimmed ocellus; scale bar = 2 μm. Fig. 150. Frustule with attached girdle bands, flat valve face merging into rounded mantle, barely raised elevations; scale bar = 10 μm. Fig. 151. Irregular false pseudoloculi, basal layer with a single poroid areola occluded by a simple raised cribrum; scale bar = 1 μm." pageId="43" pageNumber="44">Fig. 152</figureCitation>
, arrow). Exterior valve surface with transapical rows of fine pores extending from central annulus to valve margin, within annulus irregularly arranged, interior with foramina. Valve surface covered with spinules, those within annulus linked (
<figureCitation id="02CBAA90F437FFBC2139FC22FC5E24D0" box="[877,976,987,1012]" captionStart="FIGURES 153156" captionStartId="44.[136,243,1796,1817]" captionTargetBox="[238,1352,185,1758]" captionTargetId="figure-15@44.[221,1366,173,1772]" captionTargetPageId="44" captionText="FIGURES 153156. Details of two species currently placed in Cerataulus but with characters associated with Trieres and Parodontella. Figs 153,155.Cerataulus strelnikovae P.A. Sims and D.M. Williams, sp. nov. (Vema Cruise 17, core 107, 175cm). Fig. 152. Valve exterior, broadly lanceolate valve with apical elevations lying in opposing directions, 5 stout subcentral spines, the openings of rimoportulae surrounding a central annulus; scale bar = 10 μm. Fig. 155. Detail of transapical rows of irregularly arranged fine poresr within annulus, linked spinules covering annulus (sternum); scale bar = 1 μm. Figs 154156. Cerataulus granulata (Roper) P.A. Sims &amp; D.M. Williams, comb. nov. (“Wunderluss”, locality unknown, ex Brigger colln, BM). Fig. 154. Valve exterior, lanceolate valve with elevations in opposing directions, an ocellus on summit, 2 stout hollow spines, the openings of rimoportulae lying centrally in a subpolar position on opposing sides of a central sternum; scale bar = 10 μm. Fig. 155. Detail of valve exterior with transapical quadruple rows of fine pores meeting annulus (sternum) extending between rimoportulae; scale bar = 1 μm." pageId="43" pageNumber="44">Fig. 153</figureCitation>
). Rimoportulae 46, positioned either side of annulus, opening through stout, long tubular spines on valve exterior, internal opening unknown. Girdle bands unknown.
</paragraph>
</subSubSection>
<subSubSection id="D2EAE59EF437FFBC22E9FBBEFA8123E8" pageId="43" pageNumber="44" type="materials_examined">
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<emphasis id="A8846A07F437FFBC22E9FBBEFE902344" bold="true" box="[189,286,1095,1120]" pageId="43" pageNumber="44">Type:—</emphasis>
Vema Cruise 17, core 107, water depth
<quantity id="5D081BF0F437FFBC2154FBBEFCC02344" box="[768,846,1095,1120]" metricMagnitude="3" metricUnit="m" metricValue="1.525" pageId="43" pageNumber="44" unit="m" value="1525.0">1525m</quantity>
[
<collectionCode id="FCE12ED0F437FFBC2108FBBEFC1B2344" box="[860,917,1095,1120]" country="USA" httpUri="http://biocol.org/urn:lsid:biocol.org:col:15690" lsid="urn:lsid:biocol.org:col:34700" name="California Academy of Sciences" pageId="43" pageNumber="44" type="Museum">CAS</collectionCode>
nos 39573/9 &amp; 10] (
<emphasis id="A8846A07F437FFBC26C8FBBEFECD23A0" bold="true" pageId="43" pageNumber="44">
<collectionCode id="FCE12ED0F437FFBC26C8FBBEFB472344" box="[1180,1225,1095,1120]" country="United Kingdom" name="Bristol Museum" pageId="43" pageNumber="44">BM</collectionCode>
101831,
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</emphasis>
).
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<paragraph id="9A4FB615F437FFBC22DCFB4AFA8123E8" blockId="43.[136,1295,1203,1228]" box="[136,1295,1203,1228]" pageId="43" pageNumber="44">
<emphasis id="A8846A07F437FFBC22DCFB4AFEC223E8" bold="true" box="[136,332,1203,1228]" pageId="43" pageNumber="44">Observations:—</emphasis>
This description is based on specimens from
<typeStatus id="454B08B7F437FFBC2111FB4AFCFB23E8" box="[837,885,1203,1228]" pageId="43" pageNumber="44">type</typeStatus>
material: Vema Cruise 17, core 107.
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P.A. Sims &amp; D. M. Williams
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<paragraph id="9A4FB615F439FFB222DCF9B9FC7021CD" blockId="37.[136,1452,1600,1805]" pageId="37" pageNumber="38">Valve face circular-oval with elevation at each pole. Valve face convex with a strongly raised valve centre lying between almost vertical long, narrow elevations, ocellus on each summit. Valve mantle steep, merging at base into expanded hyaline valve margin. Areolae poroid, in rows radiating from valve centre extending length of narrow elevations. Areolae occluded by a simple velum. Rimoportulae 13, arising beneath summit of central area inclined towards opposite poles, each opening through a long narrow spine forked at its summit.</paragraph>
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(Greville) P.A. Sims &amp; D.M. Williams
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</emphasis>
(
<figureCitation id="02CBAA90F439FFB2219BFC89FBE524AD" box="[975,1131,880,905]" captionStart="FIGURES 139143" captionStartId="39.[136,243,1454,1475]" captionTargetBox="[169,1419,192,1417]" captionTargetId="figure-14@39.[150,1436,175,1432]" captionTargetPageId="39" captionText="FIGURES 139143. Pseudictyota bicorne (Cleve) P.A. Sims &amp; D.M. Williams (Thursday Island, Queensland, Australia). Fig. 139. Rhombic valve exterior with elevations at opposing narrow apices, valve margin expanded midway between elevations; valve covered in irregular pattern of false pseudoloculi, mantle incurved and attached to expanded hyaline valve margin by costae; scale bar = 10 μm. Fig. 140. Valve and attached valvocopula tilted showing interior with regular uninterrupted radial rows of poroid areolae; scale bar = 10 μm. Fig. 141. Mantle view with barely raised elevations, an ocellus on summit and raised valve centre; scale bar = 3 μm. Fig. 142. Detail of false pseudoloculi, basal layer with poroid areolae most occluded by cribra with a specialised pore (arrow) in most sectors; scale bar = 1 μm. Fig. 143. Interior, midway between elevations, opening from submarginal rimoportula (arrow) and expanded pars interior of valvocopula (typical of the genus); scale bar = 1 μm." pageId="37" pageNumber="38">Figs 139143</figureCitation>
)
</heading>
</paragraph>
</subSubSection>
<subSubSection id="D2EAE59EF439FFB222DCFC6FFD20248F" box="[136,686,918,939]" pageId="37" pageNumber="38" type="reference_group">
<paragraph id="9A4FB615F439FFB222DCFC6FFD20248F" blockId="37.[136,1254,918,975]" box="[136,686,918,939]" pageId="37" pageNumber="38">
<emphasis id="A8846A07F439FFB222DCFC6FFF63248F" bold="true" box="[136,237,918,939]" pageId="37" pageNumber="38">Basionym</emphasis>
:
<taxonomicName id="5DF0CD96F439FFB222AEFC6FFDD3248F" authority="Cleve (1878: 17" authorityName="Cleve" authorityYear="1878" box="[250,605,918,939]" class="Bacillariophyceae" family="Triceratiaceae" genus="Triceratium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Triceratiales" pageId="37" pageNumber="38" phylum="Ochrophyta" rank="species" species="bicorne">
<emphasis id="A8846A07F439FFB222AEFC6FFE34248F" box="[250,442,918,939]" italics="true" pageId="37" pageNumber="38">Triceratium bicorne</emphasis>
<bibRefCitation id="FE61CBE4F439FFB22395FC6FFDD3248F" author="Cleve, P. T." box="[449,605,918,939]" pageId="37" pageNumber="38" pagination="1 - 22" refId="ref26550" refString="Cleve, P. T. (1878) Diatoms from the West Indian Archipelago. Bihang till Kongliga Svenska Vetenskaps-Akademiens Handlingar 5 (8): 1 - 22, 5 pls." type="journal article" year="1878">Cleve (1878: 17</bibRefCitation>
</taxonomicName>
, fig. 30)
</paragraph>
</subSubSection>
<subSubSection id="D2EAE59EF439FFB222DCFC43FD0322A5" pageId="37" pageNumber="38" type="materials_examined">
<paragraph id="9A4FB615F439FFB222DCFC43FB6824EB" blockId="37.[136,1254,918,975]" box="[136,1254,954,975]" pageId="37" pageNumber="38">
<emphasis id="A8846A07F439FFB222DCFC43FF5424EB" bold="true" box="[136,218,954,975]" pageId="37" pageNumber="38">
<typeStatus id="454B08B7F439FFB222DCFC43FF3324EB" box="[136,189,954,975]" pageId="37" pageNumber="38">Type</typeStatus>
:—
</emphasis>
“St. Bartholomew. I have found this species in a gathering from Java and from
<collectingRegion id="583478F7F439FFB22186FC43FBB824EB" box="[978,1078,954,975]" country="United States of America" name="California" pageId="37" pageNumber="38">California</collectingRegion>
” (
<bibRefCitation id="FE61CBE4F439FFB2261FFC43FB6E24EB" author="Cleve, P. T." box="[1099,1248,954,975]" pageId="37" pageNumber="38" pagination="1 - 22" refId="ref26550" refString="Cleve, P. T. (1878) Diatoms from the West Indian Archipelago. Bihang till Kongliga Svenska Vetenskaps-Akademiens Handlingar 5 (8): 1 - 22, 5 pls." type="journal article" year="1878">Cleve 1878: 17</bibRefCitation>
)
</paragraph>
<paragraph id="9A4FB615F439FFB222DCFBF9FE44221D" blockId="37.[136,1452,1024,1409]" pageId="37" pageNumber="38">
Valves quadrate, cruciform or bipolar with expanded valve margins (
<figureCitation id="02CBAA90F439FFB221D8FBF9FBA5233D" box="[908,1067,1024,1049]" captionStart="FIGURES 139143" captionStartId="39.[136,243,1454,1475]" captionTargetBox="[169,1419,192,1417]" captionTargetId="figure-14@39.[150,1436,175,1432]" captionTargetPageId="39" captionText="FIGURES 139143. Pseudictyota bicorne (Cleve) P.A. Sims &amp; D.M. Williams (Thursday Island, Queensland, Australia). Fig. 139. Rhombic valve exterior with elevations at opposing narrow apices, valve margin expanded midway between elevations; valve covered in irregular pattern of false pseudoloculi, mantle incurved and attached to expanded hyaline valve margin by costae; scale bar = 10 μm. Fig. 140. Valve and attached valvocopula tilted showing interior with regular uninterrupted radial rows of poroid areolae; scale bar = 10 μm. Fig. 141. Mantle view with barely raised elevations, an ocellus on summit and raised valve centre; scale bar = 3 μm. Fig. 142. Detail of false pseudoloculi, basal layer with poroid areolae most occluded by cribra with a specialised pore (arrow) in most sectors; scale bar = 1 μm. Fig. 143. Interior, midway between elevations, opening from submarginal rimoportula (arrow) and expanded pars interior of valvocopula (typical of the genus); scale bar = 1 μm." pageId="37" pageNumber="38">Figs 139, 140</figureCitation>
). At opposing poles are outwardly projecting elevations, ocellus on each summit. Valve face barely raised, on cruciform specimens opposing margins raised, mantles rounded, shallow (
<figureCitation id="02CBAA90F439FFB22052FBB1FDE92345" box="[518,615,1096,1121]" captionStart="FIGURES 139143" captionStartId="39.[136,243,1454,1475]" captionTargetBox="[169,1419,192,1417]" captionTargetId="figure-14@39.[150,1436,175,1432]" captionTargetPageId="39" captionText="FIGURES 139143. Pseudictyota bicorne (Cleve) P.A. Sims &amp; D.M. Williams (Thursday Island, Queensland, Australia). Fig. 139. Rhombic valve exterior with elevations at opposing narrow apices, valve margin expanded midway between elevations; valve covered in irregular pattern of false pseudoloculi, mantle incurved and attached to expanded hyaline valve margin by costae; scale bar = 10 μm. Fig. 140. Valve and attached valvocopula tilted showing interior with regular uninterrupted radial rows of poroid areolae; scale bar = 10 μm. Fig. 141. Mantle view with barely raised elevations, an ocellus on summit and raised valve centre; scale bar = 3 μm. Fig. 142. Detail of false pseudoloculi, basal layer with poroid areolae most occluded by cribra with a specialised pore (arrow) in most sectors; scale bar = 1 μm. Fig. 143. Interior, midway between elevations, opening from submarginal rimoportula (arrow) and expanded pars interior of valvocopula (typical of the genus); scale bar = 1 μm." pageId="37" pageNumber="38">Fig. 141</figureCitation>
), length 3046μm, breadth 2842μm. Valve and mantle surface covered in false pseudoloculi, those at valve centre larger. Mantle connected to outer edge of expanded hyaline valve margin by costae (
<figureCitation id="02CBAA90F439FFB2228AFB69FECE238D" box="[222,320,1168,1193]" captionStart="FIGURES 139143" captionStartId="39.[136,243,1454,1475]" captionTargetBox="[169,1419,192,1417]" captionTargetId="figure-14@39.[150,1436,175,1432]" captionTargetPageId="39" captionText="FIGURES 139143. Pseudictyota bicorne (Cleve) P.A. Sims &amp; D.M. Williams (Thursday Island, Queensland, Australia). Fig. 139. Rhombic valve exterior with elevations at opposing narrow apices, valve margin expanded midway between elevations; valve covered in irregular pattern of false pseudoloculi, mantle incurved and attached to expanded hyaline valve margin by costae; scale bar = 10 μm. Fig. 140. Valve and attached valvocopula tilted showing interior with regular uninterrupted radial rows of poroid areolae; scale bar = 10 μm. Fig. 141. Mantle view with barely raised elevations, an ocellus on summit and raised valve centre; scale bar = 3 μm. Fig. 142. Detail of false pseudoloculi, basal layer with poroid areolae most occluded by cribra with a specialised pore (arrow) in most sectors; scale bar = 1 μm. Fig. 143. Interior, midway between elevations, opening from submarginal rimoportula (arrow) and expanded pars interior of valvocopula (typical of the genus); scale bar = 1 μm." pageId="37" pageNumber="38">Fig. 139</figureCitation>
). Basal layer of valve with continuous rows of poroid areolae radiating from valve centre (
<figureCitation id="02CBAA90F439FFB22769FB69FA11238D" box="[1341,1439,1168,1193]" captionStart="FIGURES 139143" captionStartId="39.[136,243,1454,1475]" captionTargetBox="[169,1419,192,1417]" captionTargetId="figure-14@39.[150,1436,175,1432]" captionTargetPageId="39" captionText="FIGURES 139143. Pseudictyota bicorne (Cleve) P.A. Sims &amp; D.M. Williams (Thursday Island, Queensland, Australia). Fig. 139. Rhombic valve exterior with elevations at opposing narrow apices, valve margin expanded midway between elevations; valve covered in irregular pattern of false pseudoloculi, mantle incurved and attached to expanded hyaline valve margin by costae; scale bar = 10 μm. Fig. 140. Valve and attached valvocopula tilted showing interior with regular uninterrupted radial rows of poroid areolae; scale bar = 10 μm. Fig. 141. Mantle view with barely raised elevations, an ocellus on summit and raised valve centre; scale bar = 3 μm. Fig. 142. Detail of false pseudoloculi, basal layer with poroid areolae most occluded by cribra with a specialised pore (arrow) in most sectors; scale bar = 1 μm. Fig. 143. Interior, midway between elevations, opening from submarginal rimoportula (arrow) and expanded pars interior of valvocopula (typical of the genus); scale bar = 1 μm." pageId="37" pageNumber="38">Fig. 140</figureCitation>
). Areolae occluded on valve exterior by
<specimenCount id="8CF67D9CF439FFB22011FB4DFD3C23E9" box="[581,690,1204,1229]" count="2" pageId="37" pageNumber="38" type="generic" typeStatus="types">two types</specimenCount>
of vela, either a cribra or (
<figureCitation id="02CBAA90F439FFB221BCFB4DFBC423E9" box="[1000,1098,1204,1229]" captionStart="FIGURES 139143" captionStartId="39.[136,243,1454,1475]" captionTargetBox="[169,1419,192,1417]" captionTargetId="figure-14@39.[150,1436,175,1432]" captionTargetPageId="39" captionText="FIGURES 139143. Pseudictyota bicorne (Cleve) P.A. Sims &amp; D.M. Williams (Thursday Island, Queensland, Australia). Fig. 139. Rhombic valve exterior with elevations at opposing narrow apices, valve margin expanded midway between elevations; valve covered in irregular pattern of false pseudoloculi, mantle incurved and attached to expanded hyaline valve margin by costae; scale bar = 10 μm. Fig. 140. Valve and attached valvocopula tilted showing interior with regular uninterrupted radial rows of poroid areolae; scale bar = 10 μm. Fig. 141. Mantle view with barely raised elevations, an ocellus on summit and raised valve centre; scale bar = 3 μm. Fig. 142. Detail of false pseudoloculi, basal layer with poroid areolae most occluded by cribra with a specialised pore (arrow) in most sectors; scale bar = 1 μm. Fig. 143. Interior, midway between elevations, opening from submarginal rimoportula (arrow) and expanded pars interior of valvocopula (typical of the genus); scale bar = 1 μm." pageId="37" pageNumber="38">Fig. 142</figureCitation>
, arrow), a hyaline valve centre surrounded by pores. Rimportulae 2, lying marginally midway between elevations its external opening through tubular spine, those on cruciform specimens a long, buttressed and ridged spine, interior opening a radially aligned slit across a papilllus (
<figureCitation id="02CBAA90F439FFB2235FFAD9FEE2221D" box="[267,364,1312,1337]" captionStart="FIGURES 139143" captionStartId="39.[136,243,1454,1475]" captionTargetBox="[169,1419,192,1417]" captionTargetId="figure-14@39.[150,1436,175,1432]" captionTargetPageId="39" captionText="FIGURES 139143. Pseudictyota bicorne (Cleve) P.A. Sims &amp; D.M. Williams (Thursday Island, Queensland, Australia). Fig. 139. Rhombic valve exterior with elevations at opposing narrow apices, valve margin expanded midway between elevations; valve covered in irregular pattern of false pseudoloculi, mantle incurved and attached to expanded hyaline valve margin by costae; scale bar = 10 μm. Fig. 140. Valve and attached valvocopula tilted showing interior with regular uninterrupted radial rows of poroid areolae; scale bar = 10 μm. Fig. 141. Mantle view with barely raised elevations, an ocellus on summit and raised valve centre; scale bar = 3 μm. Fig. 142. Detail of false pseudoloculi, basal layer with poroid areolae most occluded by cribra with a specialised pore (arrow) in most sectors; scale bar = 1 μm. Fig. 143. Interior, midway between elevations, opening from submarginal rimoportula (arrow) and expanded pars interior of valvocopula (typical of the genus); scale bar = 1 μm." pageId="37" pageNumber="38">Fig. 143</figureCitation>
, arrow).
</paragraph>
<paragraph id="9A4FB615F439FFB222E9FABDFD0322A5" blockId="37.[136,1452,1024,1409]" pageId="37" pageNumber="38">
<emphasis id="A8846A07F439FFB222E9FABDFE0F2279" bold="true" box="[189,385,1348,1373]" pageId="37" pageNumber="38">Observations:—</emphasis>
This description is based on specimens from Thursday Island,
<collectingRegion id="583478F7F439FFB22611FABDFB422279" box="[1093,1228,1348,1373]" country="Australia" name="Queensland" pageId="37" pageNumber="38">Queensland</collectingRegion>
,
<collectingCountry id="E2E7F685F439FFB22682FABDFACE2279" box="[1238,1344,1348,1373]" name="Australia" pageId="37" pageNumber="38">Australia</collectingCountry>
, Muntok, Sumatra, and Paama,
<collectingCountry id="E2E7F685F439FFB2232FFA91FD9122A5" box="[379,543,1384,1409]" name="Vanuatu" pageId="37" pageNumber="38">New Hebrides</collectingCountry>
,
<collectingCountry id="E2E7F685F439FFB2207EFA91FD0422A5" box="[554,650,1384,1409]" name="Vanuatu" pageId="37" pageNumber="38">Vanuatu</collectingCountry>
.
</paragraph>
</subSubSection>
</treatment>
</document>

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<taxonomicName id="27865584FFE5FFC8FF5EFCCDEA58FC94" ID-CoL="3HBS3" authority="Almeda &amp; H. Ranariv." authorityName="Almeda &amp; H. Ranariv." authorityYear="2019" box="[136,636,852,879]" class="Magnoliopsida" family="Melastomataceae" genus="Gravesia" kingdom="Plantae" order="Myrtales" pageId="1" pageNumber="116" phylum="Tracheophyta" rank="species" species="serratifolia" status="sp. nov.">
<emphasis id="D2F2F215FFE5FFC8FF5EFCCDE952FC94" bold="true" box="[136,374,852,879]" italics="true" pageId="1" pageNumber="116">Gravesia serratifolia</emphasis>
Almeda &amp; H. Ranariv.
</taxonomicName>
,
<emphasis id="D2F2F215FFE5FFC8FD51FCCDEAF9FC95" bold="true" box="[647,733,852,878]" italics="true" pageId="1" pageNumber="116">
<taxonomicNameLabel id="C9C14F6EFFE5FFC8FD51FCCDEAF9FC95" box="[647,733,852,878]" pageId="1" pageNumber="116" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
(
<figureCitation id="78BD3282FFE5FFC8FD3AFCCFEB73FC94" box="[748,855,854,879]" captionStart="FIGURE 1" captionStartId="3.[136,229,1850,1871]" captionTargetBox="[179,1411,252,1726]" captionTargetId="figure-14@3.[151,1436,187,1823]" captionTargetPageId="3" captionText="FIGURE 1. Gravesia serratifolia. A. Habit. B. Representative leaf (abaxial surface) C. Representative leaf (adaxial surface). D. Enlargement of a portion of abaxial leaf surface showing serrate margin and scattered lepidote indumentum. E. Enlargement of abaxial leaf base showing acarodomatia where secondary veins diverge from primary vein. F. Petal (adaxial surface) G. Stamen (profile view). H. Enlargement of filament showing fascicled glandlike trichomes. I. Enlargement of filament showing solitary and branched glandlike trichomes. J. Hypanthium and style (at anthesis) with petals and stamens removed. K. Simple dichasium showing bracts and bracteoles. Drawn from Ranarivelo &amp; Ravelonarivo RHS 857." pageId="1" pageNumber="116">Figures 1</figureCitation>
&amp;
<figureCitation id="78BD3282FFE5FFC8FCADFCCFEBAEFC94" box="[891,906,854,879]" captionStart="FIGURE 2" captionStartId="4.[136,229,2029,2050]" captionTargetBox="[191,1397,190,2004]" captionTargetId="figure-14@4.[191,1397,190,2004]" captionTargetPageId="4" captionText="FIGURE 2. Gravesia serratifolia showing habit, leaves, inflorescence, and flower. (Photo: Éric Mathieu)" pageId="1" pageNumber="116">2</figureCitation>
)
</heading>
</paragraph>
</subSubSection>
<subSubSection id="A89C7D8CFFE5FFCBFF6BFCE3E8E4FD4A" lastPageId="2" lastPageNumber="117" pageId="1" pageNumber="116" type="diagnosis">
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Diagnosis: Distinguished from all
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<emphasis id="D2F2F215FFE5FFC8FD9FFCE3EA94FC68" box="[585,688,890,915]" italics="true" pageId="1" pageNumber="116">Gravesia</emphasis>
species
</taxonomicName>
by a combination of small (13.3 ×
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) coarsely serrate leaf blades that are moderately lepidote on both surfaces like young vegetative buds, calyx tube well-developed and flangelike,
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long; calyx lobes obsolete or evident as depressed truncate undulations, calyx teeth 5, 0.751 ×
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, prominent and prolonged beyond calyx tube, laterally compressed when fresh but appearing knobby and callose-thickened when dry; filaments sparsely to moderately beset with rufescent simple (rarely branched) glandlike trichomes mostly less than
<quantity id="277E83E2FFE5FFC8FDF9FBB7EAB0FBBC" box="[559,660,1070,1095]" metricMagnitude="-4" metricUnit="m" metricValue="2.5" pageId="1" pageNumber="116" unit="mm" value="0.25">0.25 mm</quantity>
long that are commonly clustered or fascicled, and anther connective conspicuously prolonged dorso-basally ca.
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above the junction with the filament into a linear-oblong widely spreading or coiled appendage
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long.
</paragraph>
<paragraph id="E0392E07FFE5FFC8FF6BFB03E9FEFB00" blockId="1.[136,1452,887,2067]" pageId="1" pageNumber="116">
<materialsCitation id="50EE245AFFE5FFC8FF6BFB03E9F2FB00" collectingDate="2005-12-13" collectionCode="SAVA, H, CAS, G, MO, P, TAN" collectorName="Ranarivelo &amp; D. Ravelonarivo" country="Madagascar" county="Type" elevation="2132" latitude="-14.449166" location="Marojejy National Park" longLatPrecision="21" longitude="49.732502" municipality="Andapa" pageId="1" pageNumber="116" specimenCode="RHS 857" specimenCount="2" stateProvince="Antsiranana" typeStatus="holotype">
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:—
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.
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:
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,
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, top of the massif,
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</quantity>
,
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,
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, fl.,
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<collectionCode id="8697B6C2FFE5FFC8FD03FB27EAC9FB2C" box="[725,749,1214,1239]" country="Finland" lsid="urn:lsid:biocol.org:col:15618" name="University of Helsinki" pageId="1" pageNumber="116" type="Herbarium">H</collectionCode>
.
<collectorName id="4D734BD1FFE5FFC8FD2AFB27EB5CFB2C" box="[764,888,1214,1239]" pageId="1" pageNumber="116">Ranarivelo</collectorName>
&amp;
<collectorName id="4D734BD1FFE5FFC8FC70FB27EC40FB2C" box="[934,1124,1214,1239]" pageId="1" pageNumber="116">D. Ravelonarivo</collectorName>
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</emphasis>
(
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:
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!;
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:
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!,
<collectionCode id="8697B6C2FFE5FFC8FEC8FB7BE977FB00" box="[286,339,1250,1275]" country="USA" lsid="urn:lsid:biocol.org:col:15859" name="Missouri Botanical Garden" pageId="1" pageNumber="116" type="Herbarium">MO</collectionCode>
!,
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!,
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!)
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.
</paragraph>
<paragraph id="E0392E07FFE5FFCBFF6BFA9FEADDFDDA" blockId="1.[136,1452,887,2067]" lastBlockId="2.[136,1453,157,2093]" lastPageId="2" lastPageNumber="117" pageId="1" pageNumber="116">
Sparingly branched shrub
<quantity id="277E83E2FFE5FFC8FE0DFA9FEA39FAE4" box="[475,541,1286,1311]" metricMagnitude="-1" metricUnit="m" metricValue="5.0" pageId="1" pageNumber="116" unit="cm" value="50.0">50 cm</quantity>
to
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tall. Distal cauline internodes rounded-quadrate, deeply and inconspicuously canaliculate on two of the opposing faces, essentially glabrous, sparingly and irregularly lenticellate. Cauline nodes somewhat swollen at the base of each petiole with elevated somewhat pustulate U-shaped or V-shaped interpetiolar lines. Leaves opposite and decussate, isomorphic in size and shape in each pair, ± erect or ascending when fresh, the adaxial surface sometimes ± convex or with the blade margins curved downward at a gentle angle when fresh. Leaves semi-succulent when fresh becoming chartaceous when dry; petioles
<quantity id="277E83E2FFE5FFC8FC0DFA23EC69FA28" box="[987,1101,1463,1491]" metricMagnitude="-3" metricUnit="m" metricValue="4.75" metricValueMax="6.0" metricValueMin="3.5" pageId="1" pageNumber="116" unit="mm" value="4.75" valueMax="6.0" valueMin="3.5">3.56 mm</quantity>
long, canaliculate and glabrous on the adaxial surface, rounded and glabrous to lenticellate on the abaxial surface; blades bright green when fresh, irregularly flushed red along the margins, 13.3 ×
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, elliptic-ovate to ovate or suborbicular (rarely ovateobovate), 5-nerved with inconspicuous acarodomatia where the inner pair of secondary veins diverge from the primary vein at the blade base, moderately and randomly lepidote on both surfaces like the young vegetative buds, the scales minute, sessile, and rusty brown, apex obtuse to rounded, base obtuse to bluntly acute or nearly rounded, the blade margins conspicuously and coarsely serrate for much of their length. Inflorescence a terminal simple dichasium of three flowers but often reduced to a solitary flower or occasionally somewhat congested and 5-flowered on an erect solitary peduncle (4)
<quantity id="277E83E2FFE5FFC8FE46F943EA24F908" box="[400,512,1751,1779]" metricMagnitude="-2" metricUnit="m" metricValue="1.15" metricValueMax="1.6" metricValueMin="0.7" pageId="1" pageNumber="116" unit="mm" value="11.5" valueMax="16.0" valueMin="7.0">716 mm</quantity>
long; pedicels
<quantity id="277E83E2FFE5FFC8FD65F943EB31F908" box="[691,789,1751,1779]" metricMagnitude="-3" metricUnit="m" metricValue="3.0" metricValueMax="4.0" metricValueMin="2.0" pageId="1" pageNumber="116" unit="mm" value="3.0" valueMax="4.0" valueMin="2.0">24 mm</quantity>
long, glabrous, lenticellate and sometimes also sparingly rusty lepidote, the subtending bracts with petioles mostly
<quantity id="277E83E2FFE5FFC8FCC8F967EB45F8EC" box="[798,865,1790,1815]" metricMagnitude="-3" metricUnit="m" metricValue="1.0" pageId="1" pageNumber="116" unit="mm" value="1.0">1 mm</quantity>
long and blades 25 ×
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, elliptic-ovate to obovate, 3-nerved, apex obtuse, base acute to cuneate, sparingly rusty-lepidote on both surfaces, the margins coarsely serrate; the bracteoles 1.52.5 ×
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, linear-oblong to narrowly oblanceolate, obscurely 1-nerved, apex narrowly acute, base narrowly attenuate, glabrous, the margins entire. Hypanthium (at anthesis)
<quantity id="277E83E2FFE5FFC8FB1CF8F3ED0EF878" box="[1226,1322,1895,1923]" metricMagnitude="-3" metricUnit="m" metricValue="4.5" metricValueMax="5.0" metricValueMin="4.0" pageId="1" pageNumber="116" unit="mm" value="4.5" valueMax="5.0" valueMin="4.0">45 mm</quantity>
long to the torus and
<quantity id="277E83E2FFE5FFC8FF2DF817E978F85C" box="[251,348,1931,1959]" metricMagnitude="-3" metricUnit="m" metricValue="4.5" metricValueMax="5.0" metricValueMin="4.0" pageId="1" pageNumber="116" unit="mm" value="4.5" valueMax="5.0" valueMin="4.0">45 mm</quantity>
in diameter, broadly turbinate to infundibuliform, ± terete or only 2-costate on some hypanthia, essentially glabrous, often irregularly lenticellate and sparingly beset with a sessile rusty-lepidote indumentum that is caducous; calyx tube well developed and flangelike,
<quantity id="277E83E2FFE5FFC8FCDEF84FEB44F814" box="[776,864,2006,2031]" metricMagnitude="-3" metricUnit="m" metricValue="1.5" pageId="1" pageNumber="116" unit="mm" value="1.5">1.5 mm</quantity>
long; calyx lobes obsolete or evident as depressed truncate undulations, calyx teeth 5, 0.751 ×
<quantity id="277E83E2FFE5FFC8FD41F863EB17F7E8" box="[663,819,2039,2067]" metricMagnitude="-4" metricUnit="m" metricValue="6.25" metricValueMax="7.5" metricValueMin="5.0" pageId="1" pageNumber="116" unit="mm" value="0.625" valueMax="0.75" valueMin="0.5">0.50.75 mm</quantity>
, prominent and prolonged beyond calyx tube, laterally compressed when fresh but appearing knobby and ± callose-thickened when dry. Petals 5, 1319 ×
<quantity id="277E83E2FFE6FFCBFB0DFF39ED1FFF42" box="[1243,1339,157,185]" metricMagnitude="-3" metricUnit="m" metricValue="7.5" metricValueMax="9.0" metricValueMin="6.0" pageId="2" pageNumber="117" unit="mm" value="7.5" valueMax="9.0" valueMin="6.0">69 mm</quantity>
, narrowly obovate, obliquely apiculate at the apex, magenta, entire and eciliate. Stamens 10, isomorphic in size and shape, erect and ± clustered around the erect style at anthesis; filaments
<quantity id="277E83E2FFE6FFCBFCA1FF71EBF3FEFA" box="[887,983,229,257]" metricMagnitude="-3" metricUnit="m" metricValue="6.5" metricValueMax="7.0" metricValueMin="6.0" pageId="2" pageNumber="117" unit="mm" value="6.5" valueMax="7.0" valueMin="6.0">67 mm</quantity>
long and
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in diameter, pale pink, compressed, sparsely to moderately beset with rusty brown simple (rarely branched) glandlike trichomes mostly less than
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long that are commonly clustered or fascicled; anther thecae
<quantity id="277E83E2FFE6FFCBFC00FEA9EC33FEB2" box="[982,1047,304,329]" metricMagnitude="-3" metricUnit="m" metricValue="4.0" pageId="2" pageNumber="117" unit="mm" value="4.0">4 mm</quantity>
long and
<quantity id="277E83E2FFE6FFCBFB51FEA9ECECFEB2" box="[1159,1224,304,329]" metricMagnitude="-3" metricUnit="m" metricValue="1.0" pageId="2" pageNumber="117" unit="mm" value="1.0">1 mm</quantity>
in diameter, yellow, oblong, ± laterally compressed, the apical pore ventrally inclined; connective conspicuously thickened dorsally and prolonged dorso-basally ca.
<quantity id="277E83E2FFE6FFCBFE18FEE1EA02FE6A" box="[462,550,376,401]" metricMagnitude="-4" metricUnit="m" metricValue="5.0" pageId="2" pageNumber="117" unit="mm" value="0.5">0.5 mm</quantity>
above the junction with the filament into a linear-oblong widely spreading or coiled appendage
<quantity id="277E83E2FFE6FFCBFE87FE05E9C3FE4E" box="[337,487,409,437]" metricMagnitude="-4" metricUnit="m" metricValue="6.25" metricValueMax="7.5" metricValueMin="5.0" pageId="2" pageNumber="117" unit="mm" value="0.625" valueMax="0.75" valueMin="0.5">0.50.75 mm</quantity>
long. Ovary (at anthesis)
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long and
<quantity id="277E83E2FFE6FFCBFC64FE05EBD6FE4E" box="[946,1010,412,437]" metricMagnitude="-3" metricUnit="m" metricValue="2.0" pageId="2" pageNumber="117" unit="mm" value="2.0">2 mm</quantity>
in diameter, bluntly oblong-elliptic and somewhat tapered distally (at anthesis), glabrous, apex truncate to rounded, 1/3-inferior, 5-locular; style
<quantity id="277E83E2FFE6FFCBFAE6FE59ED88FE22" box="[1328,1452,445,473]" metricMagnitude="-2" metricUnit="m" metricValue="1.1" metricValueMax="1.2" metricValueMin="1.0" pageId="2" pageNumber="117" unit="mm" value="11.0" valueMax="12.0" valueMin="10.0">1012 mm</quantity>
long and
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in diameter, pale pink but whitish distally, terete and ± straight, glabrous and terminating in a punctiform stigma. Mature capsules and seeds not seen.
</paragraph>
<paragraph id="E0392E07FFE6FFCBFF6BFDB5E8E4FD4A" blockId="2.[136,1453,157,2093]" pageId="2" pageNumber="117">
<emphasis id="D2F2F215FFE6FFCBFF6BFDB5E91DFDBE" bold="true" box="[189,313,556,581]" pageId="2" pageNumber="117">Phenology</emphasis>
:—The type and two of the
<typeStatus id="3F3D90A5FFE6FFCBFDA5FDB5EAC5FDBE" box="[627,737,556,581]" pageId="2" pageNumber="117" type="paratype">paratypes</typeStatus>
, which were collected in October and December, are in flower; these flowering specimens have a few post-mature ruptured capsules with no seeds. One other
<typeStatus id="3F3D90A5FFE6FFCBFB36FDC9ED64FD92" box="[1248,1344,592,617]" pageId="2" pageNumber="117" type="paratype">paratype</typeStatus>
that was collected in November has young fruits. Another
<typeStatus id="3F3D90A5FFE6FFCBFD7DFDEDEB2FFD76" box="[683,779,628,653]" pageId="2" pageNumber="117" type="paratype">paratype</typeStatus>
collected outside of Marojejy NP in March is in post-mature fruit.
</paragraph>
</subSubSection>
<subSubSection id="A89C7D8CFFE6FFCBFF6BFD25EC99FA16" pageId="2" pageNumber="117" type="description">
<paragraph id="E0392E07FFE6FFCBFF6BFD25ECAEFBE2" blockId="2.[136,1453,157,2093]" pageId="2" pageNumber="117">
<emphasis id="D2F2F215FFE6FFCBFF6BFD25E9C4FD2E" bold="true" box="[189,480,700,725]" pageId="2" pageNumber="117">Habitat and distribution</emphasis>
:—Three of the five known collections of
<taxonomicName id="27865584FFE6FFCBFC78FD25ECBCFD2E" box="[942,1176,700,725]" class="Magnoliopsida" family="Melastomataceae" genus="Gravesia" kingdom="Plantae" order="Myrtales" pageId="2" pageNumber="117" phylum="Tracheophyta" rank="species" species="serratifolia">
<emphasis id="D2F2F215FFE6FFCBFC78FD25ECBCFD2E" box="[942,1176,700,725]" italics="true" pageId="2" pageNumber="117">Gravesia serratifolia</emphasis>
</taxonomicName>
were collected at or near the summit of Marojejy National Park above
<quantity id="277E83E2FFE6FFCBFDA9FD79EAF7FD02" box="[639,723,736,761]" metricMagnitude="3" metricUnit="m" metricValue="2.0" pageId="2" pageNumber="117" unit="m" value="2000.0">2000 m</quantity>
elevation (
<figureCitation id="78BD3282FFE6FFCBFC98FD79EB8BFD02" box="[846,943,736,761]" captionStart="FIGURE 3" captionStartId="5.[136,229,1457,1478]" captionTargetBox="[178,1373,225,1422]" captionTargetId="figure-14@5.[177,1412,190,1432]" captionTargetPageId="5" captionText="FIGURE 3. Geographic distribution of Gravesia serratifolia." pageId="2" pageNumber="117">Figure 3</figureCitation>
). The fourth collection was purportedly made near Camp III. Our GPS readings in the field indicate that Camp III is at about
<quantity id="277E83E2FFE6FFCBFBC5FC9DEC49FCE6" box="[1043,1133,772,797]" metricMagnitude="3" metricUnit="m" metricValue="1.319" pageId="2" pageNumber="117" unit="m" value="1319.0">1319 m</quantity>
. We did not see this species around Camp III so we suspect that this collection was made at a somewhat higher elevation in ericoid vegetation. The single collection from outside the park boundaries was made at
<quantity id="277E83E2FFE6FFCBFC74FCD5EBD8FC9E" box="[930,1020,844,869]" metricMagnitude="3" metricUnit="m" metricValue="1.774" pageId="2" pageNumber="117" unit="m" value="1774.0">1774 m</quantity>
. Four natural vegetational formations have been identified on the Marojejy Massif (
<bibRefCitation id="841753F6FFE6FFCBFD54FCE9EB0DFC72" author="Humbert, H." box="[642,809,880,905]" pageId="2" pageNumber="117" pagination="1 - 210" refId="ref3770" refString="Humbert, H. (1955) Une merveille de la nature a Madagascar. Premiere exploration du massif du Marojejy et de ses satellites. Memoires de I'Institut Scientifique de Madagascar Serie B, 6: 1 - 210." type="journal article" year="1955">Humbert 1955</bibRefCitation>
;
<bibRefCitation id="841753F6FFE6FFCBFCE2FCE9EC52FC72" author="Garreau, J. - M. &amp; Manantsara, A." box="[820,1142,880,905]" pageId="2" pageNumber="117" pagination="1451 - 1458" refId="ref3702" refString="Garreau, J. - M. &amp; Manantsara, A. (2003) The protected-area complex of the Parc National de Marojejy and the Reserve Speciale d'Anjanaharibe-Sud. In: Goodman, S. M. &amp; Benstead, J. P. (Eds.) The Natural History of Madagascar. University of Chicago Press, Chicago, pp. 1451 - 1458." type="book chapter" year="2003">Garreau &amp; Manantsara 2003</bibRefCitation>
): humid dense forests occur below
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; medium-elevation rainforests occur between 800 and
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; dense montane forests are found between 1400 and
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; and what has been described as ericoid vegetation (
<bibRefCitation id="841753F6FFE6FFCBFC66FC21EC7CFC2A" author="Humbert, H." box="[944,1112,952,977]" pageId="2" pageNumber="117" pagination="1 - 210" refId="ref3770" refString="Humbert, H. (1955) Une merveille de la nature a Madagascar. Premiere exploration du massif du Marojejy et de ses satellites. Memoires de I'Institut Scientifique de Madagascar Serie B, 6: 1 - 210." type="journal article" year="1955">Humbert 1955</bibRefCitation>
) or montane thicket (
<bibRefCitation id="841753F6FFE6FFCBFA86FC21E94EFC0E" author="Garreau, J. - M. &amp; Manantsara, A." pageId="2" pageNumber="117" pagination="1451 - 1458" refId="ref3702" refString="Garreau, J. - M. &amp; Manantsara, A. (2003) The protected-area complex of the Parc National de Marojejy and the Reserve Speciale d'Anjanaharibe-Sud. In: Goodman, S. M. &amp; Benstead, J. P. (Eds.) The Natural History of Madagascar. University of Chicago Press, Chicago, pp. 1451 - 1458." type="book chapter" year="2003">Garreau &amp; Manantsara 2003</bibRefCitation>
) occurs above
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. Most of the known collections of
<taxonomicName id="27865584FFE6FFCBFC2EFC45ECBDFC0E" box="[1016,1177,988,1013]" class="Magnoliopsida" family="Melastomataceae" genus="Gravesia" kingdom="Plantae" order="Myrtales" pageId="2" pageNumber="117" phylum="Tracheophyta" rank="species" species="serratifolia">
<emphasis id="D2F2F215FFE6FFCBFC2EFC45ECBDFC0E" box="[1016,1177,988,1013]" italics="true" pageId="2" pageNumber="117">G. serratifolia</emphasis>
</taxonomicName>
were made in this latter formation which covers only about 1000 ha or 1.5 % of the area of Marojejy National Park.
</paragraph>
<paragraph id="E0392E07FFE6FFCBFF6BFBBDEC99FA16" blockId="2.[136,1453,157,2093]" pageId="2" pageNumber="117">
<emphasis id="D2F2F215FFE6FFCBFF6BFBBDE98DFBC6" bold="true" box="[189,425,1060,1085]" pageId="2" pageNumber="117">Conservation status</emphasis>
:—
<taxonomicName id="27865584FFE6FFCBFE1BFBBDEA93FBC6" box="[461,695,1060,1085]" class="Magnoliopsida" family="Melastomataceae" genus="Gravesia" kingdom="Plantae" order="Myrtales" pageId="2" pageNumber="117" phylum="Tracheophyta" rank="species" species="serratifolia">
<emphasis id="D2F2F215FFE6FFCBFE1BFBBDEA93FBC6" box="[461,695,1060,1085]" italics="true" pageId="2" pageNumber="117">Gravesia serratifolia</emphasis>
</taxonomicName>
is mostly known from a limited area at upper elevations of Marojejy National Park and one outlying montane site northwest of the park. The EOO is
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² and the AOO is
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². Except for the single collection made outside of the park, all known populations of this species occur within the boundary of Marojejy National Park. Populations in the park are afforded some protection so it seems unlikely that they are severely threatened at this time. The lower elevation forests within and surrounding Marojejy NP suffer from diffuse but regular noncommercial pressure due to exploitation of forest products. Ecotourism at Marojejy NP is small-scale at present but increased human visitation to the high elevation montane thicket vegetation could become a potential threat because of its limited extent and the slow growth of plant species in this fragile formation (
<bibRefCitation id="841753F6FFE6FFCBFBE4FAB9ED58FAC2" author="Garreau, J. - M. &amp; Manantsara, A." box="[1074,1404,1312,1337]" pageId="2" pageNumber="117" pagination="1451 - 1458" refId="ref3702" refString="Garreau, J. - M. &amp; Manantsara, A. (2003) The protected-area complex of the Parc National de Marojejy and the Reserve Speciale d'Anjanaharibe-Sud. In: Goodman, S. M. &amp; Benstead, J. P. (Eds.) The Natural History of Madagascar. University of Chicago Press, Chicago, pp. 1451 - 1458." type="book chapter" year="2003">Garreau &amp; Manantsara 2003</bibRefCitation>
). To date there has been no history of fire damage to the vegetational cover in the interior of Marojejy NP (
<bibRefCitation id="841753F6FFE6FFCBFAE6FADDE96BFA7A" author="Garreau, J. - M. &amp; Manantsara, A." pageId="2" pageNumber="117" pagination="1451 - 1458" refId="ref3702" refString="Garreau, J. - M. &amp; Manantsara, A. (2003) The protected-area complex of the Parc National de Marojejy and the Reserve Speciale d'Anjanaharibe-Sud. In: Goodman, S. M. &amp; Benstead, J. P. (Eds.) The Natural History of Madagascar. University of Chicago Press, Chicago, pp. 1451 - 1458." type="book chapter" year="2003">Garreau &amp; Manantsara 2003</bibRefCitation>
). However, low elevation habitats outside of the national park continue to experience out-of-control fires and areas in the Betaolana corridor are threatened by mining sites for topaz and beryl. In view of its limited area of occupancy, small population size (surely less than 1000 individuals), and number of known locations (≤ 5), we recommend a conservation classification of Vulnerable (VU): D2 for
<taxonomicName id="27865584FFE6FFCBFC44FA4DEC16FA16" box="[914,1074,1492,1517]" class="Magnoliopsida" family="Melastomataceae" genus="Gravesia" kingdom="Plantae" order="Myrtales" pageId="2" pageNumber="117" phylum="Tracheophyta" rank="species" species="serratifolia">
<emphasis id="D2F2F215FFE6FFCBFC44FA4DEC16FA16" box="[914,1074,1492,1517]" italics="true" pageId="2" pageNumber="117">G. serratifolia</emphasis>
</taxonomicName>
at this time.
</paragraph>
</subSubSection>
<subSubSection id="A89C7D8CFFE6FFCBFF6BFA61ED3AF8F6" pageId="2" pageNumber="117" type="etymology">
<paragraph id="E0392E07FFE6FFCBFF6BFA61EAD2F9CE" blockId="2.[136,1453,157,2093]" pageId="2" pageNumber="117">
<emphasis id="D2F2F215FFE6FFCBFF6BFA61E91AF9EA" bold="true" box="[189,318,1528,1553]" pageId="2" pageNumber="117">Etymology</emphasis>
:—The epithet for this species,
<emphasis id="D2F2F215FFE6FFCBFD64FA61EB13F9EA" box="[690,823,1528,1553]" italics="true" pageId="2" pageNumber="117">
<taxonomicName id="27865584FFE6FFCBFD64FA61EB17F9EA" box="[690,819,1528,1553]" class="Magnoliopsida" family="Melastomataceae" genus="Gravesia" kingdom="Plantae" order="Myrtales" pageId="2" pageNumber="117" phylum="Tracheophyta" rank="species" species="serratifolia">serratifolia</taxonomicName>
,
</emphasis>
highlights the conspicuous serrate foliar margins that extend for most of the length of each mature leaf blade.
</paragraph>
<paragraph id="E0392E07FFE6FFCBFF6BF9D9ED3AF8F6" blockId="2.[136,1453,157,2093]" pageId="2" pageNumber="117">
<emphasis id="D2F2F215FFE6FFCBFF6BF9D9EA64F9A2" bold="true" box="[189,576,1600,1625]" pageId="2" pageNumber="117">Additional specimens examined</emphasis>
:—
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.
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:
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, sommet face ouest,
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, [
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,
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],
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, yg. fr.,
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4091
</emphasis>
(
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,
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!)
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;
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, forêt à mousse
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III, [
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,
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],
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<collectingDate id="847CF12FFFE6FFCBFD04F911EB43F95A" box="[722,871,1672,1697]" pageId="2" pageNumber="117" value="1988-10-11">11 Oct. 1988</collectingDate>
</date>
, fl.,
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<collectorName id="4D734BD1FFE6FFCBFC4CF911EC32F95A" box="[922,1046,1672,1697]" pageId="2" pageNumber="117">Rakatozafy</collectorName>
&amp;
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2258
</emphasis>
(
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!)
</materialsCitation>
;
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,
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,
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, top of the massif,
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,
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,
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,
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<collectingDate id="847CF12FFFE6FFCBFB9AF935ECC0F93E" box="[1100,1252,1708,1733]" pageId="2" pageNumber="117" value="2005-12-13">13 Dec. 2005</collectingDate>
</date>
, fl.,
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<collectorName id="4D734BD1FFE6FFCBFAC5F935EDABF93E" box="[1299,1423,1708,1733]" pageId="2" pageNumber="117">Ranarivelo</collectorName>
&amp;
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<specimenCode id="B020867CFFE6FFCBFEF2F949E9A3F912" box="[292,391,1744,1769]" collectionCode="RHS" country="United Kingdom" httpUri="http://grbio.org/cool/b13i-fg9i" name="Plant Pathology, The Royal Horticultural Society" pageId="2" pageNumber="117">RHS 820</specimenCode>
</emphasis>
(
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!,
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!,
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!)
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;
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et
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,
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, deuxième montagne
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,
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,
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,
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,
<date id="943808C7FFE6FFCBFE17F96DEA7DF8F6" box="[449,601,1780,1805]" pageId="2" pageNumber="117" value="2006-03-11">
<collectingDate id="847CF12FFFE6FFCBFE17F96DEA7DF8F6" box="[449,601,1780,1805]" pageId="2" pageNumber="117" value="2006-03-11">11 Mar. 2006</collectingDate>
</date>
, old fr.,
<emphasis id="D2F2F215FFE6FFCBFD63F96DEBEDF8F6" box="[693,969,1780,1805]" italics="true" pageId="2" pageNumber="117">
<collectorName id="4D734BD1FFE6FFCBFD63F96DEB68F8F6" box="[693,844,1780,1805]" pageId="2" pageNumber="117">Ravelonarivo</collectorName>
et al. 1872
</emphasis>
(
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, P-online image!,
<collectionCode id="8697B6C2FFE6FFCBFB00F96DED37F8F6" box="[1238,1299,1780,1805]" country="Madagascar" httpUri="http://biocol.org/urn:lsid:biocol.org:col:13842" lsid="urn:lsid:biocol.org:col:13842" name="Parc de Tsimbazaza" pageId="2" pageNumber="117" type="Herbarium">TAN</collectionCode>
)
</materialsCitation>
.
</paragraph>
</subSubSection>
<subSubSection id="A89C7D8CFFE6FFCFFF6BF881EBD4FDBE" lastPageId="6" lastPageNumber="121" pageId="2" pageNumber="117" type="discussion">
<paragraph id="E0392E07FFE6FFCBFF6BF881EAA4F7D6" blockId="2.[136,1453,157,2093]" pageId="2" pageNumber="117">
<emphasis id="D2F2F215FFE6FFCBFF6BF881E91FF8CA" bold="true" box="[189,315,1816,1841]" pageId="2" pageNumber="117">Discussion</emphasis>
:—
<bibRefCitation id="841753F6FFE6FFCBFE8AF881EAA3F8CA" author="Perrier de la Bathie, H." box="[348,647,1816,1841]" pageId="2" pageNumber="117" pagination="1 - 292" refId="ref3927" refString="Perrier de la Bathie, H. (1932) Les Melastomatacees de Madagascar. Memoires de L'Academie Malgache 12: 1 - 292." type="journal article" year="1932">Perrier de la Bâthie (1932</bibRefCitation>
,
<bibRefCitation id="841753F6FFE6FFCBFD45F881EAE8F8CA" author="Perrier de la Bathie, H." box="[659,716,1816,1841]" pageId="2" pageNumber="117" pagination="1 - 326" refId="ref3981" refString="Perrier de la Bathie, H. (1951) Melastomatacees. In: Humbert, H. (Ed.) Flore de Madagascar et des Comores 153: 1 - 326." type="journal article" year="1951">1951</bibRefCitation>
) divided
<taxonomicName id="27865584FFE6FFCBFCEEF881EBBBF8CA" authorityName="Naudin" authorityYear="1851" box="[824,927,1816,1841]" class="Magnoliopsida" family="Melastomataceae" genus="Gravesia" kingdom="Plantae" order="Myrtales" pageId="2" pageNumber="117" phylum="Tracheophyta" rank="genus">
<emphasis id="D2F2F215FFE6FFCBFCEEF881EBBBF8CA" box="[824,927,1816,1841]" italics="true" pageId="2" pageNumber="117">Gravesia</emphasis>
</taxonomicName>
into three subgenera. The subgenus
<emphasis id="D2F2F215FFE6FFCBFAE8F881ED8FF8CA" box="[1342,1451,1816,1841]" italics="true" pageId="2" pageNumber="117">
<taxonomicName id="27865584FFE6FFCBFAE8F881ED83F8CA" authorityName="Naudin" authorityYear="1851" box="[1342,1447,1816,1841]" class="Magnoliopsida" family="Melastomataceae" genus="Gravesia" kingdom="Plantae" order="Myrtales" pageId="2" pageNumber="117" phylum="Tracheophyta" rank="genus">Gravesia</taxonomicName>
,
</emphasis>
to which he assigned over 100 described species, was further divided into four sections largely based on habit and inflorescence architecture. The taxonomy of
<taxonomicName id="27865584FFE6FFCBFD53F8F9EAC8F882" authorityName="Naudin" authorityYear="1851" box="[645,748,1888,1913]" class="Magnoliopsida" family="Melastomataceae" genus="Gravesia" kingdom="Plantae" order="Myrtales" pageId="2" pageNumber="117" phylum="Tracheophyta" rank="genus">
<emphasis id="D2F2F215FFE6FFCBFD53F8F9EAC8F882" box="[645,748,1888,1913]" italics="true" pageId="2" pageNumber="117">Gravesia</emphasis>
</taxonomicName>
in
<collectingCountry id="98916E97FFE6FFCBFCC5F8F9EBBEF882" box="[787,922,1888,1913]" name="Madagascar" pageId="2" pageNumber="117">Madagascar</collectingCountry>
has received little attention since Perrier de la Bâthies flora treatment of the genus. The monophyly of its infrageneric groupings are yet to be tested in a phylogenetic context. Several of the sections in subgenus
<taxonomicName id="27865584FFE6FFCBFDAAF831EAC7F83A" authorityName="Naudin" authorityYear="1851" box="[636,739,1960,1985]" class="Magnoliopsida" family="Melastomataceae" genus="Gravesia" kingdom="Plantae" order="Myrtales" pageId="2" pageNumber="117" phylum="Tracheophyta" rank="genus">
<emphasis id="D2F2F215FFE6FFCBFDAAF831EAC7F83A" box="[636,739,1960,1985]" italics="true" pageId="2" pageNumber="117">Gravesia</emphasis>
</taxonomicName>
include morphologically diverse species. We tentatively assign
<taxonomicName id="27865584FFE6FFCBFF5EF855E90DF81E" box="[136,297,1996,2021]" class="Magnoliopsida" family="Melastomataceae" genus="Gravesia" kingdom="Plantae" order="Myrtales" pageId="2" pageNumber="117" phylum="Tracheophyta" rank="species" species="serratifolia">
<emphasis id="D2F2F215FFE6FFCBFF5EF855E90DF81E" box="[136,297,1996,2021]" italics="true" pageId="2" pageNumber="117">G. serratifolia</emphasis>
</taxonomicName>
to section
<taxonomicName id="27865584FFE6FFCBFE73F855EA0DF81E" box="[421,553,1996,2021]" pageId="2" pageNumber="117" rank="section" section="Pauciflorae">
<emphasis id="D2F2F215FFE6FFCBFE73F855EA0DF81E" box="[421,553,1996,2021]" italics="true" pageId="2" pageNumber="117">Pauciflorae</emphasis>
</taxonomicName>
based on its shrubby habit with stems that exceed the leaves in length and few-flowered cymose inflorescence, but it does not match or appear to be particularly close to any of the species assigned to this section by
<bibRefCitation id="841753F6FFE6FFCBFE98F78DEA58F7D6" author="Perrier de la Bathie, H." box="[334,636,2068,2093]" pageId="2" pageNumber="117" pagination="1 - 326" refId="ref3981" refString="Perrier de la Bathie, H. (1951) Melastomatacees. In: Humbert, H. (Ed.) Flore de Madagascar et des Comores 153: 1 - 326." type="journal article" year="1951">Perrier de la Bâthie (1951)</bibRefCitation>
.
</paragraph>
<caption id="B4F97E8FFFE7FFCAFF5EF8A3EA56F7F8" pageId="3" pageNumber="118" startId="3.[136,229,1850,1871]" targetBox="[179,1411,252,1726]" targetPageId="3" targetType="figure">
<paragraph id="E0392E07FFE7FFCAFF5EF8A3EA56F7F8" blockId="3.[136,1453,1850,2051]" pageId="3" pageNumber="118">
<emphasis id="D2F2F215FFE7FFCAFF5EF8A3E927F8B4" bold="true" box="[136,259,1850,1871]" pageId="3" pageNumber="118">FIGURE 1.</emphasis>
<emphasis id="D2F2F215FFE7FFCAFED8F8A3E9C0F8B4" box="[270,484,1850,1871]" italics="true" pageId="3" pageNumber="118">
<taxonomicName id="27865584FFE7FFCAFED8F8A3E9C4F8B4" box="[270,480,1850,1871]" class="Magnoliopsida" family="Melastomataceae" genus="Gravesia" kingdom="Plantae" order="Myrtales" pageId="3" pageNumber="118" phylum="Tracheophyta" rank="species" species="serratifolia">Gravesia serratifolia</taxonomicName>
.
</emphasis>
A. Habit. B. Representative leaf (abaxial surface) C. Representative leaf (adaxial surface). D. Enlargement of a portion of abaxial leaf surface showing serrate margin and scattered lepidote indumentum. E. Enlargement of abaxial leaf base showing acarodomatia where secondary veins diverge from primary vein. F. Petal (adaxial surface) G. Stamen (profile view). H. Enlargement of filament showing fascicled glandlike trichomes. I. Enlargement of filament showing solitary and branched glandlike trichomes. J. Hypanthium and style (at anthesis) with petals and stamens removed. K. Simple dichasium showing bracts and bracteoles. Drawn from Ranarivelo &amp; Ravelonarivo RHS 857.
</paragraph>
</caption>
<caption id="B4F97E8FFFE0FFCDFF5EF874EC5BF7F9" box="[136,1151,2029,2050]" pageId="4" pageNumber="119" startId="4.[136,229,2029,2050]" targetBox="[191,1397,190,2004]" targetPageId="4" targetType="figure">
<paragraph id="E0392E07FFE0FFCDFF5EF874EC5BF7F9" blockId="4.[136,1151,2029,2050]" box="[136,1151,2029,2050]" pageId="4" pageNumber="119">
<emphasis id="D2F2F215FFE0FFCDFF5EF874E8DAF7F9" bold="true" box="[136,254,2029,2050]" pageId="4" pageNumber="119">FIGURE 2.</emphasis>
<taxonomicName id="27865584FFE0FFCDFED5F874E9E9F7F9" box="[259,461,2029,2050]" class="Magnoliopsida" family="Melastomataceae" genus="Gravesia" kingdom="Plantae" order="Myrtales" pageId="4" pageNumber="119" phylum="Tracheophyta" rank="species" species="serratifolia">
<emphasis id="D2F2F215FFE0FFCDFED5F874E9E9F7F9" box="[259,461,2029,2050]" italics="true" pageId="4" pageNumber="119">Gravesia serratifolia</emphasis>
</taxonomicName>
showing habit, leaves, inflorescence, and flower. (Photo: Éric Mathieu)
</paragraph>
</caption>
<caption id="B4F97E8FFFE1FFCCFF5EFA28EAFCFA3D" box="[136,728,1457,1478]" pageId="5" pageNumber="120" startId="5.[136,229,1457,1478]" targetBox="[178,1373,225,1422]" targetPageId="5" targetType="figure">
<paragraph id="E0392E07FFE1FFCCFF5EFA28EAFCFA3D" blockId="5.[136,728,1457,1478]" box="[136,728,1457,1478]" pageId="5" pageNumber="120">
<emphasis id="D2F2F215FFE1FFCCFF5EFA28E8DAFA3D" bold="true" box="[136,254,1457,1478]" pageId="5" pageNumber="120">FIGURE 3.</emphasis>
Geographic distribution of
<taxonomicName id="27865584FFE1FFCCFDDEFA28EAF6FA3D" box="[520,722,1457,1478]" class="Magnoliopsida" family="Melastomataceae" genus="Gravesia" kingdom="Plantae" order="Myrtales" pageId="5" pageNumber="120" phylum="Tracheophyta" rank="species" species="serratifolia">
<emphasis id="D2F2F215FFE1FFCCFDDEFA28EAF6FA3D" box="[520,722,1457,1478]" italics="true" pageId="5" pageNumber="120">Gravesia serratifolia</emphasis>
</taxonomicName>
.
</paragraph>
</caption>
<paragraph id="E0392E07FFE1FFCFFF6BFA6EEBD4FDBE" blockId="5.[136,1452,1527,2092]" lastBlockId="6.[136,1452,160,581]" lastPageId="6" lastPageNumber="121" pageId="5" pageNumber="120">
<taxonomicName id="27865584FFE1FFCCFF6BFA6EE98FF9EB" box="[189,427,1527,1552]" class="Magnoliopsida" family="Melastomataceae" genus="Gravesia" kingdom="Plantae" order="Myrtales" pageId="5" pageNumber="120" phylum="Tracheophyta" rank="species" species="serratifolia">
<emphasis id="D2F2F215FFE1FFCCFF6BFA6EE98FF9EB" box="[189,427,1527,1552]" italics="true" pageId="5" pageNumber="120">Gravesia serratifolia</emphasis>
</taxonomicName>
is readily distinguished from its congeners by the combination of coarsely serrate leaves that are elliptic-ovate to ovate or suborbicular, basally nerved and randomly beset with a minute lepidote indumentum on both surfaces (
<figureCitation id="78BD3282FFE1FFCCFE87F9A6E9D5F9A3" box="[337,497,1599,1624]" captionStart="FIGURE 1" captionStartId="3.[136,229,1850,1871]" captionTargetBox="[179,1411,252,1726]" captionTargetId="figure-14@3.[151,1436,187,1823]" captionTargetPageId="3" captionText="FIGURE 1. Gravesia serratifolia. A. Habit. B. Representative leaf (abaxial surface) C. Representative leaf (adaxial surface). D. Enlargement of a portion of abaxial leaf surface showing serrate margin and scattered lepidote indumentum. E. Enlargement of abaxial leaf base showing acarodomatia where secondary veins diverge from primary vein. F. Petal (adaxial surface) G. Stamen (profile view). H. Enlargement of filament showing fascicled glandlike trichomes. I. Enlargement of filament showing solitary and branched glandlike trichomes. J. Hypanthium and style (at anthesis) with petals and stamens removed. K. Simple dichasium showing bracts and bracteoles. Drawn from Ranarivelo &amp; Ravelonarivo RHS 857." pageId="5" pageNumber="120">Figures 1BE</figureCitation>
), flangelike unlobed calyx with prominent calyx teeth (
<figureCitation id="78BD3282FFE1FFCCFBB5F9A6ECDBF9A3" box="[1123,1279,1599,1624]" captionStart="FIGURE 1" captionStartId="3.[136,229,1850,1871]" captionTargetBox="[179,1411,252,1726]" captionTargetId="figure-14@3.[151,1436,187,1823]" captionTargetPageId="3" captionText="FIGURE 1. Gravesia serratifolia. A. Habit. B. Representative leaf (abaxial surface) C. Representative leaf (adaxial surface). D. Enlargement of a portion of abaxial leaf surface showing serrate margin and scattered lepidote indumentum. E. Enlargement of abaxial leaf base showing acarodomatia where secondary veins diverge from primary vein. F. Petal (adaxial surface) G. Stamen (profile view). H. Enlargement of filament showing fascicled glandlike trichomes. I. Enlargement of filament showing solitary and branched glandlike trichomes. J. Hypanthium and style (at anthesis) with petals and stamens removed. K. Simple dichasium showing bracts and bracteoles. Drawn from Ranarivelo &amp; Ravelonarivo RHS 857." pageId="5" pageNumber="120">Figures 1J, K</figureCitation>
), and rufescent trichomes on the filaments that are mostly clustered or fascicled (
<figureCitation id="78BD3282FFE1FFCCFCB8F9FAEC2DF987" box="[878,1033,1635,1660]" captionStart="FIGURE 1" captionStartId="3.[136,229,1850,1871]" captionTargetBox="[179,1411,252,1726]" captionTargetId="figure-14@3.[151,1436,187,1823]" captionTargetPageId="3" captionText="FIGURE 1. Gravesia serratifolia. A. Habit. B. Representative leaf (abaxial surface) C. Representative leaf (adaxial surface). D. Enlargement of a portion of abaxial leaf surface showing serrate margin and scattered lepidote indumentum. E. Enlargement of abaxial leaf base showing acarodomatia where secondary veins diverge from primary vein. F. Petal (adaxial surface) G. Stamen (profile view). H. Enlargement of filament showing fascicled glandlike trichomes. I. Enlargement of filament showing solitary and branched glandlike trichomes. J. Hypanthium and style (at anthesis) with petals and stamens removed. K. Simple dichasium showing bracts and bracteoles. Drawn from Ranarivelo &amp; Ravelonarivo RHS 857." pageId="5" pageNumber="120">Figures 1GI</figureCitation>
). Its closest relative appears to be
<taxonomicName id="27865584FFE1FFCCFA46F9FAEB1FF95B" authority="(Jum. &amp; H. Perrier 1911: 274) H. Perrier (1932: 132)" authorityName="H. Perrier" authorityPageNumber="132" authorityYear="1932" baseAuthorityName="Jum. &amp; H. Perrier" baseAuthorityPageNumber="274" baseAuthorityYear="1911" class="Magnoliopsida" family="Melastomataceae" genus="Gravesia" kingdom="Plantae" order="Myrtales" pageId="5" pageNumber="120" phylum="Tracheophyta" rank="species" species="rubra">
<emphasis id="D2F2F215FFE1FFCCFA46F9FAE8ECF95B" italics="true" pageId="5" pageNumber="120">G. rubra</emphasis>
(Jum. &amp; H. Perrier 1911: 274) H.
<bibRefCitation id="841753F6FFE1FFCCFD88F91EEB1FF95B" author="Perrier de la Bathie, H." box="[606,827,1671,1696]" pageId="5" pageNumber="120" pagination="1 - 292" refId="ref3927" refString="Perrier de la Bathie, H. (1932) Les Melastomatacees de Madagascar. Memoires de L'Academie Malgache 12: 1 - 292." type="journal article" year="1932">Perrier (1932: 132)</bibRefCitation>
</taxonomicName>
, a species that
<bibRefCitation id="841753F6FFE1FFCCFC38F91EED06F95B" author="Perrier de la Bathie, H." box="[1006,1314,1671,1696]" pageId="5" pageNumber="120" pagination="1 - 326" refId="ref3981" refString="Perrier de la Bathie, H. (1951) Melastomatacees. In: Humbert, H. (Ed.) Flore de Madagascar et des Comores 153: 1 - 326." type="journal article" year="1951">Perrier de la Bâthie (1951)</bibRefCitation>
assigned to section
<taxonomicName id="27865584FFE1FFCCFF36F932E958F93F" authorityName="LeConte" authorityYear="1856" box="[224,380,1707,1732]" class="Insecta" family="Melolonthidae" genus="Macrophyllae" higherTaxonomySource="GBIF" kingdom="Animalia" order="Coleoptera" pageId="5" pageNumber="120" phylum="Arthropoda" rank="genus">
<emphasis id="D2F2F215FFE1FFCCFF36F932E958F93F" box="[224,380,1707,1732]" italics="true" pageId="5" pageNumber="120">Macrophyllae</emphasis>
</taxonomicName>
because of its large shrubby habit and paniculate inflorescence with an elongate peduncle and well-developed branches. Both
<taxonomicName id="27865584FFE1FFCCFE24F956EA73F913" authorityName="H. Perrier" authorityYear="1932" baseAuthorityName="Jum. &amp; H. Perrier" baseAuthorityYear="1911" box="[498,599,1743,1768]" class="Magnoliopsida" family="Melastomataceae" genus="Gravesia" kingdom="Plantae" order="Myrtales" pageId="5" pageNumber="120" phylum="Tracheophyta" rank="species" species="rubra">
<emphasis id="D2F2F215FFE1FFCCFE24F956EA73F913" box="[498,599,1743,1768]" italics="true" pageId="5" pageNumber="120">G. rubra</emphasis>
</taxonomicName>
and
<taxonomicName id="27865584FFE1FFCCFD44F956EB11F913" box="[658,821,1743,1768]" class="Magnoliopsida" family="Melastomataceae" genus="Gravesia" kingdom="Plantae" order="Myrtales" pageId="5" pageNumber="120" phylum="Tracheophyta" rank="species" species="serratifolia">
<emphasis id="D2F2F215FFE1FFCCFD44F956EB11F913" box="[658,821,1743,1768]" italics="true" pageId="5" pageNumber="120">G. serratifolia</emphasis>
</taxonomicName>
are similar in having glabrous rounded-quadrate distal internodes, 5-nerved leaves, glabrous hypanthia, conspicuous calyx teeth, and filaments that are beset with trichomes.
<taxonomicName id="27865584FFE1FFCCFF5EF88EE91DF8CB" authorityName="H. Perrier" authorityYear="1932" baseAuthorityName="Jum. &amp; H. Perrier" baseAuthorityYear="1911" box="[136,313,1815,1840]" class="Magnoliopsida" family="Melastomataceae" genus="Gravesia" kingdom="Plantae" order="Myrtales" pageId="5" pageNumber="120" phylum="Tracheophyta" rank="species" species="rubra">
<emphasis id="D2F2F215FFE1FFCCFF5EF88EE91DF8CB" box="[136,313,1815,1840]" italics="true" pageId="5" pageNumber="120">Gravesia rubra</emphasis>
</taxonomicName>
differs most notably in being completely glabrous and in having much larger (58 ×
<quantity id="277E83E2FFE1FFCCFAF6F88EED80F8CB" box="[1312,1444,1812,1840]" metricMagnitude="-2" metricUnit="m" metricValue="1.75" metricValueMax="2.2" metricValueMin="1.3" pageId="5" pageNumber="120" unit="cm" value="1.75" valueMax="2.2" valueMin="1.3">1.32.2 cm</quantity>
) narrowly elliptic to elliptic-lanceolate leaves that are dentate and attenuate both apically and basally. It also differs from
<taxonomicName id="27865584FFE1FFCCFF13F8C6E940F883" box="[197,356,1887,1912]" class="Magnoliopsida" family="Melastomataceae" genus="Gravesia" kingdom="Plantae" order="Myrtales" pageId="5" pageNumber="120" phylum="Tracheophyta" rank="species" species="serratifolia">
<emphasis id="D2F2F215FFE1FFCCFF13F8C6E940F883" box="[197,356,1887,1912]" italics="true" pageId="5" pageNumber="120">G. serratifolia</emphasis>
</taxonomicName>
in having broadly deltoid calyx lobes and filaments that are inconspicuously glandular pilose with the translucent solitary glands mostly less than
<quantity id="277E83E2FFE1FFCCFD78F81AEB07F867" box="[686,803,1923,1948]" metricMagnitude="-4" metricUnit="m" metricValue="1.25" pageId="5" pageNumber="120" unit="mm" value="0.125">0.125 mm</quantity>
long (vs. simple or rarely branched rufescent trichomes mostly less than
<quantity id="277E83E2FFE1FFCCFE90F83EE98FF83B" box="[326,427,1959,1984]" metricMagnitude="-4" metricUnit="m" metricValue="2.5" pageId="5" pageNumber="120" unit="mm" value="0.25">0.25 mm</quantity>
long that are commonly clustered or fascicled). We initially considered the possibility that
<taxonomicName id="27865584FFE1FFCCFF5EF852E90CF81F" box="[136,296,1995,2020]" class="Magnoliopsida" family="Melastomataceae" genus="Gravesia" kingdom="Plantae" order="Myrtales" pageId="5" pageNumber="120" phylum="Tracheophyta" rank="species" species="serratifolia">
<emphasis id="D2F2F215FFE1FFCCFF5EF852E90CF81F" box="[136,296,1995,2020]" italics="true" pageId="5" pageNumber="120">G. serratifolia</emphasis>
</taxonomicName>
might be a close relative of the sympatric
<taxonomicName id="27865584FFE1FFCCFCD6F852EC8AF81F" authority="Humbert (1955: 118)" authorityName="Humbert" authorityPageNumber="118" authorityYear="1955" box="[768,1198,1995,2020]" class="Magnoliopsida" family="Melastomataceae" genus="Gravesia" kingdom="Plantae" order="Myrtales" pageId="5" pageNumber="120" phylum="Tracheophyta" rank="species" species="marojejyensis">
<emphasis id="D2F2F215FFE1FFCCFCD6F852EB98F81F" box="[768,956,1995,2020]" italics="true" pageId="5" pageNumber="120">G. marojejyensis</emphasis>
<bibRefCitation id="841753F6FFE1FFCCFC14F852EC8AF81F" author="Humbert, H." box="[962,1198,1995,2020]" pageId="5" pageNumber="120" pagination="1 - 210" refId="ref3770" refString="Humbert, H. (1955) Une merveille de la nature a Madagascar. Premiere exploration du massif du Marojejy et de ses satellites. Memoires de I'Institut Scientifique de Madagascar Serie B, 6: 1 - 210." type="journal article" year="1955">Humbert (1955: 118)</bibRefCitation>
</taxonomicName>
which is also endemic to high elevations on the Marojejy massif and known only from the
<typeStatus id="3F3D90A5FFE1FFCCFCA3F876EB81F7F3" box="[885,933,2031,2056]" pageId="5" pageNumber="120">type</typeStatus>
collection. When Humbert described the latter he assigned it to
<taxonomicName id="27865584FFE1FFCCFE94F78AEAA4F7D7" box="[322,640,2067,2092]" class="Magnoliopsida" family="Melastomataceae" genus="Gravesia" kingdom="Plantae" order="Myrtales" pageId="5" pageNumber="120" phylum="Tracheophyta" rank="section" section="Primuloideae">
<emphasis id="D2F2F215FFE1FFCCFE94F78AE98DF7D7" box="[322,425,2067,2092]" italics="true" pageId="5" pageNumber="120">Gravesia</emphasis>
sect.
<emphasis id="D2F2F215FFE1FFCCFE3EF78AEAA4F7D7" box="[488,640,2067,2092]" italics="true" pageId="5" pageNumber="120">Primuloideae</emphasis>
</taxonomicName>
based on its repent radicant suffrutescent habit with elongate internodes, few-flowered contracted umbelliform cymes, and inflorescence peduncles that are longer than the pedicels. Both
<taxonomicName id="27865584FFE2FFCFFF5EFF5DE90EFF26" box="[136,298,196,221]" class="Magnoliopsida" family="Melastomataceae" genus="Gravesia" kingdom="Plantae" order="Myrtales" pageId="6" pageNumber="121" phylum="Tracheophyta" rank="species" species="serratifolia">
<emphasis id="D2F2F215FFE2FFCFFF5EFF5DE90EFF26" box="[136,298,196,221]" italics="true" pageId="6" pageNumber="121">G. serratifolia</emphasis>
</taxonomicName>
and
<taxonomicName id="27865584FFE2FFCFFEB2FF5DEA00FF26" authorityName="Humbert" authorityYear="1955" box="[356,548,196,221]" class="Magnoliopsida" family="Melastomataceae" genus="Gravesia" kingdom="Plantae" order="Myrtales" pageId="6" pageNumber="121" phylum="Tracheophyta" rank="species" species="marojejyensis">
<emphasis id="D2F2F215FFE2FFCFFEB2FF5DEA00FF26" box="[356,548,196,221]" italics="true" pageId="6" pageNumber="121">G. marojejyensis</emphasis>
</taxonomicName>
share similar broadly turbinate to infundibuliform hypanthia and few-flowered inflorescences. The latter, however, does not appear to be closely related based on its broadly elliptic to nearly orbicular leaves that are coarsely denticulate, cordate at the base, conspicuously bullate on the adaxial surface, and beset with conspicuous rufescent trichomes on the elevated abaxial leaf veins and distal internodes. It also differs markedly from
<taxonomicName id="27865584FFE2FFCFFF5EFECDE90CFE96" box="[136,296,340,365]" class="Magnoliopsida" family="Melastomataceae" genus="Gravesia" kingdom="Plantae" order="Myrtales" pageId="6" pageNumber="121" phylum="Tracheophyta" rank="species" species="serratifolia">
<emphasis id="D2F2F215FFE2FFCFFF5EFECDE90CFE96" box="[136,296,340,365]" italics="true" pageId="6" pageNumber="121">G. serratifolia</emphasis>
</taxonomicName>
in having a sparse cover of smooth spreading hypanthial trichomes, well-defined broadly deltoid calyx lobes, white petals with a yellowish flush on the abaxial surface, glabrous filaments, and blunt obtuse dorso-basal deflexed staminal appendages. In leaf shape and size and the few-flowered cymose inflorescences,
<taxonomicName id="27865584FFE2FFCFFADDFE05E979FE22" authority="H. Perrier (1945: 101)" authorityName="H. Perrier" authorityPageNumber="101" authorityYear="1945" class="Magnoliopsida" family="Melastomataceae" genus="Gravesia" kingdom="Plantae" order="Myrtales" pageId="6" pageNumber="121" phylum="Tracheophyta" rank="species" species="serpens">
<emphasis id="D2F2F215FFE2FFCFFADDFE05EDA2FE4E" box="[1291,1414,412,437]" italics="true" pageId="6" pageNumber="121">G. serpens</emphasis>
H.
<bibRefCitation id="841753F6FFE2FFCFFF5EFE59E979FE22" author="Perrier de la Bathie, H." box="[136,349,448,473]" pageId="6" pageNumber="121" pagination="89 - 113" refId="ref3952" refString="Perrier de la Bathie, H. (1945) Notes sur quelques Melastomatacees nouvelles ou peu connues de Madagascar. Notulae Systematicae 12: 89 - 113." type="journal article" year="1945">Perrier (1945: 101)</bibRefCitation>
</taxonomicName>
and
<taxonomicName id="27865584FFE2FFCFFE47FE59EB27FE22" authority="H. Perrier (1932: 107)" authorityName="H. Perrier" authorityPageNumber="107" authorityYear="1932" box="[401,771,448,473]" class="Magnoliopsida" family="Melastomataceae" genus="Gravesia" kingdom="Plantae" order="Myrtales" pageId="6" pageNumber="121" phylum="Tracheophyta" rank="species" species="venusta">
<emphasis id="D2F2F215FFE2FFCFFE47FE59EA2CFE22" box="[401,520,448,473]" italics="true" pageId="6" pageNumber="121">G. venusta</emphasis>
H.
<bibRefCitation id="841753F6FFE2FFCFFDF8FE59EB27FE22" author="Perrier de la Bathie, H." box="[558,771,448,473]" pageId="6" pageNumber="121" pagination="1 - 292" refId="ref3927" refString="Perrier de la Bathie, H. (1932) Les Melastomatacees de Madagascar. Memoires de L'Academie Malgache 12: 1 - 292." type="journal article" year="1932">Perrier (1932: 107)</bibRefCitation>
</taxonomicName>
are somewhat reminiscent of
<taxonomicName id="27865584FFE2FFCFFB98FE59ECC9FE22" box="[1102,1261,448,473]" class="Magnoliopsida" family="Melastomataceae" genus="Gravesia" kingdom="Plantae" order="Myrtales" pageId="6" pageNumber="121" phylum="Tracheophyta" rank="species" species="serratifolia">
<emphasis id="D2F2F215FFE2FFCFFB98FE59ECC9FE22" box="[1102,1261,448,473]" italics="true" pageId="6" pageNumber="121">G. serratifolia</emphasis>
</taxonomicName>
but both of these species belong to sect.
<taxonomicName id="27865584FFE2FFCFFE45FE7DEA35FE06" box="[403,529,484,509]" class="Magnoliopsida" family="Compositae" genus="Scandentes" higherTaxonomySource="GBIF" kingdom="Plantae" order="Asterales" pageId="6" pageNumber="121" phylum="Tracheophyta" rank="genus">
<emphasis id="D2F2F215FFE2FFCFFE45FE7DEA35FE06" box="[403,529,484,509]" italics="true" pageId="6" pageNumber="121">Scandentes</emphasis>
</taxonomicName>
which consists of species that are consistently climbing epiphytes with clinging roots. The leaves of both of these species also differ in having consistently cordiform bases (vs. obtuse to bluntly acute or nearly rounded) and the margins are uniformly entire (vs. coarsely serrate).
</paragraph>
</subSubSection>
</treatment>
</document>