Species:
Cell body ellipsoidal (or slightly cylindrical), up to 23 μm long, 16 μm wide;
a papilla present, with flattened apex; chloroplast cup-shaped, longitudinally incised;
a pyrenoid at posterior half of the cell body; a stigma elongated elliptical, located at equator; nucleus anterior;
(Süßwasserflora von Mitteleuropa 9, Chlorophyta I, 1983).
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