 
 
|  Order & Family: Floating unicells or a colony embedded in a matrix; 
no differentiation of apical and base structures; only one family. Genus: (Illustrations of The Japanese Fresh-water Algae, 1977). | 
 50 μm
 50 μm
 100 μm
 100 μm
 150 μm; x 400 :
 150 μm; x 400 : 
 31 μm
 31 μm
 63 μm
 63 μm
 94 μm; x 640
 94 μm; x 640
 
 
 
 
