Species: Colonies of 16, 32, 64 cells; marginal cells with two thick triangular processes with truncated
apex; inncer cells broad H-shaped with deeply concaved sides;
cell wall with irregularly reticulated ridges
(Photomicrographs of the Freshwater Algae, vol. 18, 1997).
|
50 μm
100 μm
150 μm; x 400 :
31 μm
63 μm
94 μm; x 640
