Species: Cell body medium in size or larger, 65-86 μm long, 51-63 μm wide,
L/W=1.25, isthmus 19-32.5 μm wide; semicells pyramidal or trapezoid in shape with flattened apex;
cellwall covered with large granules (including apex, c.f.
C. pseudomagnificum);
many triangular pores present at the center of the semicells
(Illustrations of The Japanese Fresh-water Algae, 1977).
|
50 μm
100 μm
150 μm; x 400 :
31 μm
63 μm
94 μm; x 640
