Chlorophyceae:
Volvocales: Volvocaceae
Volvocida: Volvocina: Volvocidae
Eudorina illinoisensis
(Kofoid) Pascher 1927
Genus: Colonies composed of 16, 32, 64 or 128 (mostly 32) cells; 2-layered
gelatinous envelope; mamillations anterior or posterior; cells spherical to ovoid with 2
equal-length apical flagella; eyespot present; anisogamy (Illustrated Guide, 1985).
Species:
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Eudorina illinoisensis,
young colony 42 μm long, 35 μm wide, cell body 6 μm in diam.,
x 400, x 640, near Todoroki green land, Kawasaki city, Kanawaga Pref., Japan, May 26, 2004 by Y. Tsukii
100 μm
200 μm
300 μm; x 200 :
50 μm
100 μm
150 μm; x 400
Juvenile colony 107 μm long, 73 μm wide, x 640
Mature colony 134 μm long, 107 μm wide, x 640
Mature colony 140 μm long, 105 μm wide,
large cells 17 μm in diam., small cells 12 μm in diam.,
chloroplasts cup-shaped, longitudinally striaged,
with several pyrenoids, gelatinous coat double-layered, x 400
x 640
Eudorina,
colony ellipsoidal, 128 μm long, 100 μm wide,
cell body μm long, μm wide,
x 640, near Todoroki green land, Kawasaki city, Kanawaga Pref., Japan, May 26, 2004 by Y. Tsukii
50 μm
100 μm
150 μm; x 400
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