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Chlorophyceae: Chlorococcales: Scenedesmaceae

Actinastrum hantzschii
Lagerheim var. hantzschii

Actinastrum Genus: Colonies, 3-dimensional; cell body cylindrical or long spindle in shape, radially arranged by attaching at one end to each other (Illustrations of The Japanese Fresh-water Algae, 1977).
Species: Colonies of 4 or 8 cells; body spindle-shaped, truncated at both ends; 10-25 μm long, 3-6 μm wide (Illustrations of The Japanese Fresh-water Algae, 1977).

Actinastrum sp., cell body 8 μm long, 1.5 μm wide, x 400, x 640, Uruguay, November 1999, photo by Yuuji Tsukii
scale 50 μm scale 100 μm scale 150 μm; x 400 : scale 31 μm scale 63 μm scale 94 μm; x 640
Actinastrum Actinastrum Actinastrum

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