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 about 62 μm wide,
x 640, Midori-no-ike (pond), Togakushi Forest Botanical Garden, Togakushi highland, Shinano town, Nagano Pref., Japan, June 12, 2005 by Y. Tsukii
31 μm
63 μm
94 μm; x 640