Genus: Unicellular, planktonic; cell body flat tri- or quadrangular in shape, with hairy projections at each point;
a single chloroplast plate-like in shape, with a pyrenoid
(Illustrations of The Japanese Fresh-water Algae, 1977).
Species: Cell body polygonal, wtih 2-3 spiny projections at each corner, 12-15 μm in diam., spines 10-15 μm long; a chloroplast plate-like, with a single pyrenoid (Illustrations of The Japanese Fresh-water Algae, 1977). |
50 μm
100 μm
150 μm; x 400 :
31 μm
63 μm
94 μm; x 640
