Pediastrum

Chlorophyta: Chlorophyceae: Chlorococcales: Hydrodictyaceae

Pediastrum tetras





Genus: Colonies of fixed number of cells, flat, circular in shape; cell body polygonal in shape, with horn-like projections; cell wall garanulated, wrinkled or notched; chloroplasts plate-like or reticular; asexual reproduction by zoospore; sexual reproduction by isogametes (Illustrations of The Japanese Fresh-water Algae, 1977).


Pediastrum tetras, colonies cosisting of 4 cells and of 16 cells, x 400, x 640, Uruguay Nov. 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

Pediastrum tetras, colonies of 8 cells, x 400, x 640, Uruguay 1999, photo by Y. Tsukii


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