Species: Colonies of 8 cells, 4 out of the 8 cells ellipsoidal, arranged in cruciform, remaining 4 cells nearlly spherical,
situated between each of the ellipsoidal cells forming a square view; colonies of 16 cells also present;
each cell with a stigma and two contractile vacuoles; chloroplasts single, cup-shaped, with a single pyrenoid;
cells up to 12-16 μm in diam.; 8-celled colonies up to 45 μm in diam.
(Photomicrographs of the Freshwater Algae, vol. 14, 1995).
|
50 μm
100 μm
150 μm; x 400 :
31 μm
63 μm
94 μm; x 640
