Species:
Cell body spherical, 8-12(-14) μm in diam.; conical papilla conspicuous;
chloroplast cup-shaped; a pyrenoid depressed, located at posterior half of the cell body;
a nucleus located anterior; a large elliptical stigma at equator or slightly posterior;
(Süßwasserflora von Mitteleuropa 9, Chlorophyta I, 1983).
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