Species [ var. dianae ]: Cell body slightly curved, tapered toward both ends, truncated with slanted edges,
small pores present at outside of both termini, inner side at center slightly convex,
150-380 μm long, 15-40 μm wide, L/W = 10-12;
cell wall smooth; chloroplasts with 5-8 pyrenoids in each chloroplast
(Illustrations of The Japanese Fresh-water Algae, 1977).
Cell body 160-323 μm long, 20-28 μm wide, L/W=8.3-12; chloroplasts with about 6 laminae; semicells with 4-8 pyrenoids (Photomicrographs of the Freshwater Algae, vol. 6, 1987). |
50 μm
100 μm
150 μm; x 400 :
31 μm
63 μm
94 μm; x 640
