 
 
Gamophyceae: 
Zygnematales: Desmidiaceae
Staurastrum brebissonii
W. Archer in A.Pritchard
Syn: S. pilosum (Nägeli) Archer
|  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:
 | 
Staurastrum brebissonii (Nägeli) Archer, 
stock Tnik-1, axenic culture (from January 1 to March 10), 
cell body 42 μm long, 38 μm wide, L/W=1.1, isthmus about 13 μm wide, 
x 640, Ikei-no-ike (pond), Nasu town, Tochigi Pref., Japan, September 3, 2006, collected by Eizaburo Tsukii, photo by Y. Tsukii
 31 μm
 31 μm
 63 μm
 63 μm
 94 μm; x 640
 94 μm; x 640
 
 
 
Cell body  μm long, 40 μm wide, L/W=, isthmus  μm wide, spines 2 μm long, x 640
 
 
Cell body  μm long,  μm wide, L/W=, isthmus  μm wide, spines 2-3 μm long, x 640
 
 
Staurastrum brebissonii (Nägeli) Archer, 
stock Tnik-1, axenic culture (from July 7 to August 9, 2007) in KCM+Hyponex medium, 
cell body  μm long,  μm wide, L/W=, isthmus  μm wide, 
x 640, Ikei-no-ike (pond), Nasu town, Tochigi Pref., Japan, September 3, 2006, collected by Eizaburo Tsukii, photo by Y. Tsukii
 31 μm
 31 μm
 63 μm
 63 μm
 94 μm; x 640
 94 μm; x 640
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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