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Chlorophyceae: Chlorococcales: Hydrodictyaceae

Pediastrum muticum
Kützing var. longicorne Raciborski
( or P. boryanum (Turpin) Meneghini var. longicorne Reinsch )

Pediastrum muticum Genus: Colonies of a 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).
Species:


Pediastrum muticum, colonies of cells, colonies μm in diam., cell body μm long, μm wide, x 640, Karasugamori, Nishinasuno town, Tochigi Pref., Japan, 2001 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Pediastrum Pediastrum Pediastrum

Pediastrum boryanum (Turpin) Meneghini, 1840: Colonies of 8, 16, 32 cells; no space between adjacent cells; a pair of horn-like projections; cell wall covered with fine granules; cell body 13-18 μm diam. (Illustrations of The Japanese Fresh-water Algae, 1977).


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