Species:
Cell body 58-(64.5-95)-100 μm long, (42-56)-62 μm wide,
isthmus (14-19)-20 μm wide, L/W=1.5; semicells pyramidal in shape, with
flattened apex, basal corner rounded, side and apical view elliptical; cell wall dotted
(Illustrations of The Japanese Fresh-water Algae, 1977).
|
31 μm
63 μm
94 μm; x 640
Cosmarium pyramidatum Brébisson in Ralfs,
cell body 83 μm long, 46 μm wide, isthmus 27 μm wide,
x 640, Omine-numa (pond/marsh), Tsukiyono town, Gunma Pref., Japan, September 2003 by Y. Tsukii
31 μm
63 μm
94 μm; x 640
Cosmarium pyramidatum Brébisson in Ralfs,
cell body 77 μm long, 42 μm wide, isthmus μm wide,
x 640, Omine-numa (pond/marsh), Tsukiyono town, Gunma Pref., Japan, September 2003 by Y. Tsukii
31 μm
63 μm
94 μm; x 640
