Species: Colonies forming a slightly curved square or rhomboid, up to 65-90 μm in width;
cell body up to 18-20 μm in diam.
(Photomicrographs of the Freshwater Algae, vol. 2, 1984).
Gonium pectorale, stock Tus-4,
axenic culture with Hyponex and KCM (November 26 to December 30),
colonies were disintegrated into single cells, flagellum μm long,
x 640, Shinobazu-ike (pond), Ueno, Taito-ku, Tokyo, Japan, March 2001 by Y. Tsukii
50 μm
100 μm
150 μm; x 400 :
31 μm
63 μm
94 μm; x 640