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Pediastrum granulatum.
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Portrait of Pediastrum duplex (Meyen, 1829 ).Collected from a freshwater pond near Boise, Idaho. Phase contrast.
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Pediastrum braunii.
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El Rasillo, La Rioja, Spain
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Sobrado, Galicia, Spain
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Ribadelago de Franco, Castilla y Len, Espaa
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Miranda do Douro, Bragana, Portugal
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El Rasillo, La Rioja, Spain
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Scale bar indicates 10 m. Sample from Lake Constance in the vicinity of Bodman. The image was built up using several photomicrographic frames with manual stacking technique. Images were taken using Zeiss Universal with Olympus C7070 CCD camera.For permission to use of (high-resolution) images please contact postmaster@protisten.de.
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Scale bar indicates 50 m. The inset at upper left shows fine cellulose spines which support flotation. The specimen was gathered in the wetlands of Nationalpark Unteres Odertal ( 100 km north east of Berlin). The image was built up using several photomicrographic frames with manual stacking technique. Images were taken using Zeiss Universal with Olympus C7070 CCD camera.For permission to use of (high-resolution) images please contact postmaster@protisten.de.
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Portrait of Pediastrum duplex (Meyen, 1829 )demonstrating tufts of bristles protruding from the notch at the ends of the horns of peripheral cells (seen most clearly at one o'clock and 7 o'clock here). These bristles are thought to consist of proteinaceous microfilaments (see Scnepf,E. et al. J. Ultrastruct. Res. 72:367-379,1980). These nonmotile bristles may play a role in orienting the coenobia in the water column . DIC.
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Pediastrum duplex is a common chlorophyte (Chlorococcales) of Lake Kinneret, relatively more abundant in winter, especially in âNo-Peridinium yearsâ. This specimen was collected at the shore by the Kinneret Limnological Laboratory in June 2006
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Pediastrum cruciatum.
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Pediastrum darwinii.
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El Rasillo, La Rioja, Spain
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Ribadelago de Franco, Castille and Leon, Spain
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Miranda do Douro, Bragana, Portugal
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Pediastrum elegans.
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Galende, Castille and Leon, Spain
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Miranda do Douro Municipality, Braganca, Portugal
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Pediastrum furcatum.
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Scale bar indicates 25 m. Sample from Lake Constance in the vicinity of Bodman. The image was built up using several photomicrographic frames with manual stacking technique. Images were taken using Zeiss Universal with Olympus C7070 CCD camera.For permission to use of (high-resolution) images please contact postmaster@protisten.de.
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Pediastrum lunatum.