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: Cell body 22-(26-34)-43.5 μm long, 21-(23.7-31)-37.5 μm wide; constriction 7.5-(8.4-9.8)-12 μm wide; cell wall smooth (Illustrations of the Fresh-water Algae, 1977).
Google Image Search
S. muticum 32 x 29 μm Vermont-Maine USA, 1999 |
S. muticum x 24 μm Umi-no-nakamichi Fukuoka, 2001 |
S. muticum or S. lapponicum ? 21 x 22 μm Tachikawa Tokyo, 2001 |
S. muticum μm Takezono-higashi p. Tsukuba Ibaraki, 2003 |
S. muticum 25 x 23 μm Komado marsh Showa and Tajima Fukushima, 2004 |
S. muticum 20-22 x 20 μm Kabuto-yama Nishi-no-miya Hyogo, 2004 |
S. muticum 32 x 26-28 μm Senuki Nasu Tochigi, 2004 |
S. muticum 32 x 29 μm Satsunai river Obihiro Hokkaido, 2005 |
S. muticum 25 x 25 μm Obihiro-Hasshonochi Obihiro Hokkaido, 2005 |
S. muticum 24 x 24 μm Kumakubo Nasu-shiobara Tochigi, 2005 |
S. muticum ? 40 x 37 μm Koyama River Kurizaki Honjo, 2006  |
