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Chlorophyceae: Chlorococcales: Hydrodictyaceae

Pediastrum angertiniense
Bourrelly & Tell var. argentiniense

Pediastrum angertiniense 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: Colonies of 16, 32, 64 cells, circlar to ovoid in shape with small intercellular space; marginal cells with two low triangular processes forming a broad V-shaped depression outside; processes of neighbouring marginal cells almost attached together; inner cells broad H-shaped, concaved at both sides; cell wall densely granulated (Photomicrographs of the fresh-water algae, 1988).

Pediastrum angertiniense, a clone (37-2) cultured with Hyponex and KCM medium, colonies of cells, colonies μm in diam., cell body μm long, μm wide, x 400, x 640, Uruguay, 1999, by Y. Tsukii
scale 50 μm scale 100 μm scale 150 μm; x 400 : scale 31 μm scale 63 μm scale 94 μm; x 640

Cell division, daughter colonies are formed within a vesicle, x 100, x 200, x 400, x 640

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