image_list image_listE

Gamophyceae: Desmidales: Desmidiaceae
(Charophyceae: Zygnematales: Desmidiaceae)

 Micrasterias crux-melitensis
(Ehrenberg) Hassall ex Ralfs var. crux-melitensis

Micrasterias crux-melitensis 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: 102-129 μm long, 84-124 μm wide (Illustrations of The Japanese Fresh-water Algae, 1977).

Micrasterias crux-melitensis, (Ehrenberg) Hassall ex Ralfs 1848 var. superflua, cell body 114 μm long, 105 μm wide, x 640, Sendabori, Matsudo city, Chiba Pref., Japan, January 2002 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Micrasterias crux-melitensis Micrasterias crux-melitensis Micrasterias crux-melitensis Micrasterias crux-melitensis

Micrasterias crux-melitensis, (Ehrenberg) Hassall ex Ralfs 1848 var. superflua, dividing cells, cell body μm long, μm wide, x 640, Sendabori, Matsudo city, Chiba Pref., Japan, January 2002 by Y. Tsukii
scale 50 μm scale 100 μm scale 150 μm; x 400 : scale 31 μm scale 63 μm scale 94 μm; x 640
Micrasterias crux-melitensis Micrasterias crux-melitensis Micrasterias crux-melitensis
Micrasterias crux-melitensis Micrasterias crux-melitensis

* Micrasterias crux-melitensis (Ehrenberg) Hassall ex Ralfs 1848 var. crux-melitensis: 102-129 μm long, 84-124 μm wide (Illustrations of The Japanese Fresh-water Algae, 1977).

Micrasterias crux-melitensis (Ehrenberg) Hassall ex Ralfs 1848 var. superflua Turner: 116 μm long, 116 μm wide; constriction 17 μm wide (Illustrations of The Japanese Fresh-water Algae, 1977).

Micrasterias radiata Hassall: 123-(140)-195 μm long, 113-(140)-186 μm wide (Illustrations of The Japanese Fresh-water Algae, 1977).

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