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 [v. dilatatum]: Apical view with 3 - 5 projections, each corner rounded; cell body 21-46 μm, 22-46 μm wide, isthmus 8.6-13 &3956;m (Illustrations of The Japanese Fresh-water Algae, 1977)

Google Image Search

Var. dilatatum:
S. dilatatum 34 x 32 μm Tajima Fukushima, 2004	S. dilatatum 34 x 33 μm Kakuman-buchi Akagi mountain Gunma, 2005	S. dilatatum 31 x 31 μm near Omine-numa Minakami Gunma, 2006	S. dilatatum 40 x 33 μm near Omine-numa Minakami Gunma, 2007
S. dilatatum μm Saiko Toda Saitama, 2001	S. dilatatum μm Saiko Toda Saitama, 2007
Var. hibernicum:
S. dilatatum 26 x 24 μm Tanohara marsh Shiga highland Nagano, 2004	S. dilatatum 27 x 23 μm Ukishima marsh Tsugaike highland Nagano, 2005

Similar species -->> C. lapponicum; C. muticum;

Please click on species name for more images

Copyright Protist Information Server