Species:
Cell body (outline of cellwall) broad ellipsoidal, both ends rounded; protoplast ellipsoidal or spindle-shaped;
cellwall thin; length of flagella nearly the same as that of cell body; chloroplast cup-shaped; with a single pyrenoid;
stigma absent; two contractile vacuoles apical
(Süßwasserflora von Mitteleuropa 9, Chlorophyta I, 1983).
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