Species:
Cell body 180-(210-493)-540 μm long, (24-45)-52 μm wide
(cf. C. intermedium < 25 μm), L/W = 8-12,
slightly curved, tapered at both ends, not swelled in the middle (cf. C. rostratum),
both ends broadly truncated with slanting edges;
cell wall brown in color and striated, 5-10 striae in 10 μm;
chloroplasts with with 5-9 pyrenoids in each semicells
(Illustrations of the japanese fresh-water algae, 1977). Both ends are obliquely truncate-convex; striae about 20 across the cell; chloroplasts with 5-6 pyrenoids in each semicells; 210-490 μm long, 24-45 μm wide (Phtomicrographs of the fresh-water algae, 1984). |
50 μm
100 μm
150 μm; x 400 :
31 μm
63 μm
94 μm; x 640
Images of collecting locality:
No.1, Ryugahara marsh, Chokai mountain, Yuri-Honjo city, Akita Pref., Japan, September 29, 2008 by Y. Tsukii
