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Chlorophyceae: Chaetophorales: Chaetophoraceae

Stigeoclonium tenue
(Agardh) Kützing

Genus: Filamentous algae, axis-branch differentiation incomplete; terminal cells tapered to form spiny projections; branches do not form in tuft (Illustrations of The Japanese Fresh-water Algae, 1977).
Species: Branching not so frequent; secondary branching rare; branching axial cells shorter compared to non-branching cells; axial cells up to 8-12-(15) μm in diam., L/W=2-4; constriction present at cell junction (Illustration of the Japanese fresh-water algae, 1977).


Stigeoclonium tenue (Agardh) Kützing, cell body 11-15 μm long, 6-10 μm wide, x 100, x 200, x 400, x 640, Watarase river, Ashikaga city, Tochigi Pref., Japan, February 1, 2004 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Stigeoclonium tenue Stigeoclonium tenue Stigeoclonium tenue Stigeoclonium tenue Stigeoclonium tenue

Stigeoclonium tenue ?, stock Taw-12, axenic culture with KCM & Hyponex (March 23 to April 10, 2004), cell body 21-29 μm long, 9 μm wide, x 100, x 200, x 400, x 640, Watarase river, Ashikaga city, Tochigi Pref., Japan, February 1, 2004 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Stigeoclonium tenue Stigeoclonium tenue Stigeoclonium tenue Stigeoclonium tenue Stigeoclonium tenue

Stigeoclonium tenue ?, stock Taw-12, axenic culture with KCM & Hyponex (June 9 to July 8, 2004; photo July 8, 2004), cell body μm long, μm wide, x 100, x 200, x 400, x 640, Watarase river, Ashikaga city, Tochigi Pref., Japan, February 1, 2004 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Gloeotilopsis Gloeotilopsis Gloeotilopsis Gloeotilopsis Gloeotilopsis Gloeotilopsis Gloeotilopsis Gloeotilopsis Gloeotilopsis


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