Species:
Cell body elongated ellipsoidal in shape, 15-20 μm long, 6-10 μm wide;
papilla absent; chloroplast cup-shaped; a single spherical pyrenoid located at central lateral;
stigma elliptical or circular, located at anterior half of the cell surface; nucleus anterior
(Süßwasserflora von Mitteleuropa 9, Chlorophyta I, 1983).
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