image_list image_listE

Gamophyceae: Zygnematales: Desmidiaceae

 Cosmarium hammeri
var. protuberans W. et G.S. West

Euastrum sublobatum Genus: Unicellular; variable in shape; a constriction at the center of the cell body; mostly longer than wide; flattened; each semicell hemispherical, spherical, ellipsoidal, rectangular, pyramidal or kidney-shaped; no apical indentation (Illustrations of The Japanese Fresh-water Algae, 1977).
Species:

Cosmarium hammeri var. protuberans W. et G.S. West ?, cell body 27 μm long, 23 μm wide, isthmus μm wide, x 400, x 640, Vermont-Maine U.S.A., August 7-13, 1999, by Y. Tsukii
scale 50 μm scale 100 μm scale 150 μm; x 400 : scale 31 μm scale 63 μm scale 94 μm; x 640
Euastrum Euastrum

Please click on images for viewing enlarged.
Copyright Protist Information Server