Species:
Cell body fusiform or subcylindrical, slightly metabolic, 31-46 μm long,
9-15 μm wide, L/W=4-6;
anterior end trancate or rounded, not much narrower than the widest central region,
posterior end tapered into a short caudal prolongation; stigma small;
chloroplasts disc-shaped, small and numerous, 2-3 μm in diam., pyrenoid absent;
nucleus at the center of the cell body, spherical, 7-9 μm in diam. or ellipsoidal, 6-10 x 4.5-8 μm;
discoid paramylon grains immediately beneath the periplast with their whole outer flat surface
(Chu, 1946).
|
50 μm
