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End view Staurastrum dilatatum (Ehrenberg,1838) Ralfs, 1848.The four-armed semi-cells are rotated 45 degrees with respect to each other.From freshwater aquaculture tub near Boise, Idaho December 2005. DIC.
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Staurastrum capitulum is a smal desmid with an acanthous cell wall. With its rotational symmetry the surface structure is not easy to capture with photos. Depth of focus technique was used for the attempt. Sample from spagnum pond situated in the northern alpine region of Austria near Salzburg. Images were taken using Zeiss Universal with Olympus C7070 CCD camera.
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This tiny desmid has a strongly developed 3-dimensional structure. In order to capture this the multi layer image (DOF) was built up using 7 DIC frames with manual stacking technique using Corel Photopaint. The scale bar indicates 50 µm. Sample from a pond on the island of Hiddensee (Baltic Sea, Germany). Images were taken using Zeiss Universal with Olympus C7070 CCD camera.
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This picture of St. pingue works out the structure of the cell wall surface. The multi layer image (DOF) was built up using 65 high resolution DIC frames with manual stacking technique using Corel Photopaint. The scale bar indicates 25 µm. Collected from bottom sediments of Lake Mcgregor in the Southern Alpes of New Zealand. Images were taken using Zeiss Universal with Olympus C7070 CCD camera.
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Staurastrum (star-ass-strum) desmid - a green alga with (as is usual for green algae) a cellulose cell wall which has a star-shaped appearance, and bright green chloroplasts. Differential interference contrast.
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Staurastrum paradoxum.
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Staurastrum spinosum.