Gamophyceae: Zygnematales: Desmidiaceae
(Charophyceae: Zygnematales: Desmidiaceae)


Genus: Variable in shape; strong constriction at center; semicell ellipsoidal, polygonal, etc.; cell wall with simple or branching spines, most of them laterally aligned; 4 plate-like chloroplasts in each semicell; one or more pyrenoids in each chloroplast (Illustrations of The Japanese Fresh-water Algae, 1977).

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