Gamophyceae: 
Desmidales: Desmidiaceae
(Charophyceae: Zygnematales: Desmidiaceae)
Micrasterias denticulata
Brébisson ex Ralfs var. denticulata
 
Genus: 
Cell body flat, large, variable in shape, longer than wide; strong constriction at center; 
each semicell with several notches; cell wall with many short spines 
(Illustrations of The Japanese Fresh-water Algae, 1977). 
 
Species: 
 | 
Micrasterias denticulata Brébisson ex Ralfs var. denticulata (or var. angulosa (Hantzsch) W. et G.S. West ?), 
cell body  μm long,  μm wide, L/W=, isthmus  μm wide, 
x 640, Motoyu marsh-1, Nikko city (formerly Fujiwara town), Tochigi Pref., Japan, September 24, 2008 collected by Eizaburo Tsukii, photo by Y. Tsukii
 50 μm
 100 μm
 150 μm; x 400 : 
 31 μm
 63 μm
 94 μm; x 640
Micrasterias denticulata Brébisson ex Ralfs var. denticulata, 
cell body  μm long,  μm wide, L/W=, isthmus  μm wide, 
x 640, Motoyu marsh-1, Nikko city (formerly Fujiwara town), Tochigi Pref., Japan, September 24, 2008 collected by Eizaburo Tsukii, photo by Y. Tsukii
 50 μm
 100 μm
 150 μm; x 400 : 
 31 μm
 63 μm
 94 μm; x 640
Please click on images for viewing enlarged.
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