Species:
Cell body (cellwall) broad ellipsoidal or inverted ovoid or spherical, 15-38 μm long, 10-30 μm wide
cellwall thin; papilla absent; protoplast broad ovoid; length of flagella same as that of cell body;
chloroplast cup-shaped, anterior half striated; a large pyrenoid located at posterior; stigma circular or elliptical, located at equator;
nucleus at the center of the cell; two contractile vacuoles apical; other tree or four vacuoles also present
(Süßwasserflora von Mitteleuropa 9, Chlorophyta I, 1983).
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31 μm
