Gamophyceae: Zygnematales: Desmidiaceae
Staurastrum lapponicum
(Schmidle) Grönblad f. lapponicum
Genus:
Cell body short, radiate in shape; apical view of the cell, triangular, polygonal,
ellipsoidal or spindle-shaped; zygospores formed outside of mother cells
(Illustrations of The Japanese Fresh-water Algae, 1977)
Subgenus: lacks arm-like projections
(Illustrations of The Japanese Fresh-water Algae, 1977)
Species:
Cell body 28-42 μm long, 28-39 μm wide;
constriction 8.4-11 μm wide; cell wall covered with granules,
arranging in circle around each projection; semicells not twisted with each other at isthmus
(Illustrations of the Fresh-water Algae, 1977).
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Similar species -- >>
S. muticum;
Staurastrum lapponicum (Schmidle) Grönblad f. lapponicum ?,
cell body μm long, μm wide, L/W=, isthmus μm wide,
x 640, Block 3, Kashibaru marsh, Karatsu city, Saga Pref., Japan, September 9, 2008 by Y. Tsukii
31 μm
63 μm
94 μm; x 640
Staurastrum lapponicum (Schmidle) Grönblad f. lapponicum ?,
cell body μm long, μm wide, L/W=, isthmus μm wide,
x 640, Block 3, Kashibaru marsh, Karatsu city, Saga Pref., Japan, September 9, 2008 by Y. Tsukii
31 μm
63 μm
94 μm; x 640
Images of collecting locality:
Block 3, Kashibaru marsh, Karatsu city, Saga Pref., Japan, September 9, 2008 by Y. Tsukii
Please click on images for viewing enlarged
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