image_list image_listE

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

 Micrasterias denticulata
Brébisson ex Ralfs var. denticulata

Micrasterias denticulata 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:

Micrasterias denticulata Brébisson ex Ralfs var. denticulata, stock Akya, axenic culture (from December 29, 2005 to February 1, 2006), cell body 240 μm long, 220 μm wide, L/W=1.1, isthmus 32 μm wide, x 400, x 640, Yacho-no-mori marsh (near road sign No. 4), Sukawa highland, Kurikoma mountain, Higashi-naruse village, Akita Pref., Japan, July 24, 2005 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 denticulata Micrasterias denticulata Micrasterias denticulata Micrasterias denticulata
Cell body 246 μm long, 215 μm wide, L/W=1.1, isthmus 29 μm (?) wide, x 200, x 400, x 640
Micrasterias denticulata Micrasterias denticulata Micrasterias denticulata Micrasterias denticulata
Daughter cells, x 200, x 400, x 640
Micrasterias denticulata Micrasterias denticulata Micrasterias denticulata Micrasterias denticulata Micrasterias denticulata

* M. denticulata (Greville) Ralfs: Cell body 256-288 μm long, 192-258 μm wide, constriction 31-40 μm wide (Illustrations of The Japanese Fresh-water Algae, 1977).

M. thomasiana Archer var. thomasiana: Cell body 206-256 μm long, 168-210 μm wide, constriction 21.5-28 μm wide (Illustrations of The Japanese Fresh-water Algae, 1977).

M. thomasiana var. javanica Gutwinski: Cell body 196-215 μm long, 154-168 μm wide, constriction 22-26 μm wide (Illustrations of The Japanese Fresh-water Algae, 1977).

M. thomasiana var. notata (Nordstedt) Grünblad: Cell body 185-288 μm long, 174-256 μm wide, constriction 22-31 μm wide (Illustrations of The Japanese Fresh-water Algae, 1977).

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