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Craticula cuspidata is regarded as the senior synonym of Navicula cuspidata, under which name this asset was submitted. The change of name has been made by the micro*scope team.
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Valve view of the pennate diatom, Cymatopleura solea (Brébisson) W. Smith 1851. Valves are elliptical with a central waist and bluntly pointed apices. The valve surface is marked with several transverse undulations best seen in girdle view; striae and undulations are not interrupted in the median axis. Raphe are marginal. Very short costations appear as beading around the edge of the valve. There is a single lobulated plastid one half of which lies along the inner surface of the epivalve and the other along the inner surface of the hypovalve. Collected from the benthos of a freshwater pond near Boise, Idaho, January 2005. DIC.
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Optical section (girdle view) of the pennate diatom, Cymatopleura solea (Brébisson) W. Smith 1851. Valves are elliptical with a central waist and bluntly pointed apices. The valve surface is marked with several transverse undulations best seen in girdle view (seen well in this image). Striae and undulations are not interrupted in the median axis. Raphe are marginal. Very short costations appear as beading around the edge of the valve. The central nucleus is seen in this image. There is a single lobulated plastid one half of which lies along the inner surface of the epivalve and the other along the inner surface of the hypovalve. Collected from the benthos of a freshwater pond near Boise, Idaho, January 2005. DIC.
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Optical section (girdle view) of the pennate diatom, Cymatopleura solea (Brébisson) W. Smith 1851. Valves are elliptical with a central waist and bluntly pointed apices. The valve surface is marked with several transverse undulations best seen in girdle view; striae and undulations are not interrupted in the median axis. Raphe are marginal. Very short costations appear as beading around the edge of the valve. There is a single lobulated plastid one half of which lies along the inner surface of the epivalve and the other along the inner surface of the hypovalve (seen well in this image). Collected from the benthos of a freshwater pond near Boise, Idaho, January 2005. DIC.
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Optical section (valve view) of the pennate diatom, Cymatopleura solea (Brébisson) W. Smith 1851. Valves are elliptical with a central waist and bluntly pointed apices. The valve surface is marked with several transverse undulations best seen in girdle view; striae and undulations are not interrupted in the median axis. Raphe are marginal. Very short costations appear as beading around the edge of the valve. There is a single lobulated plastid one half of which lies along the inner surface of the epivalve and the other along the inner surface of the hypovalve (seen well in this image). Collected from the benthos of a freshwater pond near Boise, Idaho, January 2005. DIC.
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Cymbella tumida (Brébisson in Kützing) van Heurck 1882-1885. Frustules within gelatinous tube. Collected from detritus in a freshwater irrigation canal. Boise, Idaho. March 2009. Brightfield.
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Cymbella tumida (Brébisson in Kützing) van Heurck 1882-1885. Cymbella tumida (Brébisson in Kützing) van Heurck 1882-1885. Frustules within gelatinous tube. Collected from detritus in a freshwater irrigation canal. Boise, Idaho. March 2009. Brightfield.
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Cymbella tumida (Brébisson in Kützing) van Heurck 1882-1885. Frustules within gelatinous tube. Collected from detritus in a freshwater irrigation canal. Boise, Idaho. March 2009.DIC.
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Cymbella tumida (Brébisson in Kützing) van Heurck 1882-1885. Frustules within gelatinous tube. Collected from detritus in a freshwater irrigation canal. Boise, Idaho. March 2009. Phase contrast.
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Cymbella tumida (Brébisson in Kützing) van Heurck 1882-1885. Frustule within gelatinous tube. Collected from detritus in a freshwater irrigation canal. Boise, Idaho. March 2009.DIC.
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Gomphonema angustatum is a common benthic (epilithic) species, at times present also in the plankton at the littoral of Lake Kinneret. The specimen was sampled in June 2006.
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