Genus: Cell body short, radiate in shape; apical view of the cell, triangular, polygonal, ellipsoidal or spindle-shaped; zygospores formed outside of mother cells (Illustrations of The Japanese Fresh-water Algae, 1977)
Subgenus: lacks arm-like projections (Illustrations of The Japanese Fresh-water Algae, 1977)
Species:
Google Image Search
S. scabrum
42 x 34 μm
Kotoku-numa
Nikko
Tochigi, 2006
S. scabrum
?? x 28 μm
Mida-ga-hara
Gassan (mt.)
Yamagata, 2006
S. scabrum ?
35 x 28 μm
Tanohara marsh
Shiga highland
Nagano, 2004
S. scabrum ?
35 x 34 μm
33 x 32 μm
Tanohara marsh
Shiga highland
Nagano, 2004
S. scabrum ?
35 x 30 μm
Tanohara marsh 3
Shiga highland
Nagano, 2007
