Order: Filamentous algae without branching; cell body mostly cylindrical.
Family: Cellwall shows H shape in transverse section;
chloroplasts reticulatedwithout pyrenoids.
Genus: Same as family.
Species:
Microspora sp.,
cell body 11 μm long, 14 μm wide,
x 640, Okubo Ryoke (picnic-no-mori), Akigase park, Saitama city, Saitama Pref., Japan, February 27, 2005 by Y. Tsukii
31 μm
63 μm
94 μm; x 640