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Gamophyceae: Zygnematales: Desmidiaceae

Sphaerozosma granulata
Roy et Bisset var. granulata
-->> Teilingia granulata (Roy et Bisset) Bourrelly

Sphaerozosma excavatum Genus: Cell body flat, constricted at the center; semicells with two small projections at their apexes; cells connected with each other by the projections.
Species: Filaments not twisted; cells loosely connected to be separated; cell body 8.4-11 μm long, 7-10.8 μm wide, constriction 4-6 μm wide; semicells broad hexagonal in shape, apex slightly depressed, with two short projections to connect with adjacent cells (Illustrations of The Japanese Fresh-water Algae, 1977).
Similar genus -->> Onychonema;


Sphaerozosma granulata Roy et Bisset var. granulata ?, cell body 12 μm long, 15 μm wide, L/W=0.8, isthmus 7 μm wide, x 640, No.1, Kejo-numa, Furukawa-Ono, Osaki city (formerly Furukawa city), Miyagi Pref., Japan, October 29, 2006 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Sphaerozosma granulata
Cell body 10 μm long, 12 μm wide, L/W=0.8, isthmus 5 μm wide, x 640
Sphaerozosma granulata Sphaerozosma granulata

Images of collecting locality: No.1, Kejo-numa, Furukawa-Ono, Osaki city (formerly Furukawa city), Miyagi Pref., Japan, October 29, 2006 by Y. Tsukii


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