Species:
Cell body ellipsoidal or slightly ovoid, 10-15 μm long, 5-10.5 μm wide;
young daughter cells slightly asymmetrical; cellwall thin; papilla absent;
length of flagella nearly the same as that of cell body;
chloroplast cup-shaped; a pyrenoid central-lateral or at posterior half of the cell;
stigma at equator or anterior; nucleus centrally located or slightly anterior
(Süßwasserflora von Mitteleuropa 9, Chlorophyta I, 1983).
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