image_list image_listE

Chlorophyceae: Chlorococcales: Scenedesmaceae

Scenedesmus quadricauda
(Turpin) Brébisson sensu Chodat, 1913

Scenedesmus quadricauda Genus: Colonies of 4 (or 2, 8, 16) cells attached side by side, arranged linearly or zigzag; cell body elliptical or spindle or crescent in shape; terminal cells with spiny projections in many species; cell wall usually smooth, but in some species granulated or dented or ridged (Illustrations of The Japanese Fresh-water Algae, 1977).
Species [ var. quadricauda ]: Colonies of 2, 4 or 8 cells arranging linearly; cell body elongated ellipsoidal, 11-18 μm long, 3.5-7 μm wide; terminal cells with long spiny projections (10-17 μm long); cell wall smooth (Illustrations of The Japanese Fresh-water Algae, 1977).


Scenedesmus quadricauda var. quadricauda, stock Skg-22 (No. 33 & No. 34) and Skg-23 (No. 35), cell body 17 μm long, 7 μm wide, spines 11 μm long, L/W=2.4, S/L=0.65, x 640, Kawagoe, Saitama Pref., Japan, May 2001 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Scenedesmus quadricauda Scenedesmus quadricauda Scenedesmus quadricauda


Please click on images for viewing enlarged.
Copyright Protist Information Server