Genus: Cell body flat, large, variable in shape, longer than wide; strong constriction at center; each semicell with several notches; cell wall with many short spines (Illustrations of The Japanese Fresh-water Algae, 1977).
M. thomasiana μm |
M. apiculata var. μm |
M. radiata μm |
M. radiata μm |
M. foliacea μm |
M. pinnatifida var. μm |
Micrasterias sp.1 μm |
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