Genus: Unicellular, within a large spherical sheath; two equal-length flagella emerging from anterior end;
cell body spherical or ellipsoidal, connected with gelatinous sheath by fine filaments;
a single chloroplast cup-shaped, with several pyrenoids
(Guide book to the "Photomicrographs of the Freshwater Algae", 1998).
Species: |
50 μm
100 μm
150 μm; x 400 :
31 μm
63 μm
94 μm; x 640
