Genus: Cells aggregate irregular in shape; cells connected by thin filaments;
cell body ovoid, 6-10 μm long, 3-6 μm width; a chloroplast plate-like
(Illustrations of The Japanese Fresh-water Algae, 1977).
Species:
Botryococcus braunii Kützing,
colony 32-50 μm wide,
x 640, Aquatic botanical garden, Sawara city, Chiba Pref., Japan, October 11, 2004 by Y. Tsukii
31 μm
63 μm
94 μm; x 640