Species: 
Cell body ellipsoidal, 20-33 μm long, 12-15 μm wide; 
chloroplast cup-shaped, lingitudinally striated (or incised); a pyrenoid located at the 
center of the cell; papilla absent; 
stigma elongated, located at anterior half of the cell; nucleus anterior 
(Süßwasserflora von Mitteleuropa 9, Chlorophyta I, 1983).   
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