image_list image_listE

Chlorophyceae: Chlorococcales: Hydrodictyaceae

 Pediastrum duplex
Pediastrum duplex 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 duplex var. reticulatum, a colony of 32 cells (32 = 14 + 11 + 6 + 1), colonies of cells, colonies μm in diam., cell body μm long, μm wide, x 400, Japan, 1998 by Y. Tsukii
scale 50 μm scale 100 μm scale 150 μm; x 400
Pediastrum Pediastrum Pediastrum

Pediastrum duplex or P. muticum ??, a colony of 30 and 16 cells (30 = 14 [-2?] + 11 + 5; 16 = 11 + 5 ), x 400, Japan, 1998 by Y. Tsukii
Pediastrum Pediastrum Pediastrum Pediastrum

Please click on images for viewing enlarged.
Copyright Protist Information Server