image_list image_listE

Gamophyceae: Zygnematales: Desmidiaceae

Staurastrum
(Meyen) Ralfs 1848

Family: Unicells or cells loosely attached forming hyphae; cell body varied in shape, a constriction at the center in most species; cell walls consisting of two or more parts, with small pores and various ornaments (Illustrations of The Japanese Fresh-water Algae, 1977).
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)
Google Image Search
Subgenus: Prostaurastrum (lacks arm-like projections)
Staurastrum
Please click on image
Subgenus: Eustaurastrum (with arm-like projections)
Staurastrum
Please click on image
Unidentified
Staurastrum
Staurastrum sp.
x 640
Uruguay, 1999
Staurastrum
Staurastrum sp.
x 640
Uruguay, 1999
Staurastrum
Staurastrum sp.
Mitsuishi marsh
Hachimantai
Iwate, 2008
Staurastrum

Please click on species name for more images
Staurastrum
Copyright Protist Information Server