Species:
Cell body spindle-shaped or ellipsoidal ovoid, up to 16-20 μm long, 5-8 μm wide;
small conical papilla present; cellwall thin; flagella nearly cell-body length;
chloroplast lateral; a pyrenoid spherical, located lateral-central;
stigma small elliptical, located at anterior of the pyrenoid;
nucleus located at posterior half of the cell
(Süßwasserflora von Mitteleuropa 9, Chlorophyta I, 1983).
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