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Gamophyceae: Desmidales: Mesotaeniaceae
(Charophyceae: Zygnematales: Mesotaeniaceae)

Netrium oblongum
(De Brary) Lütkemüller var. oblongum

Netrium oblongum Species [ var. oblongum ]: Cell body cylindrical ellipsoid, both ends broadly rounded; laminae of chloroplasts deeply dented showing circular depressions; 108-148 μm long, 27-39 μm wide, L/W=3-4.
[ var. cylindricum W. et G.S. West ]: Smaller than var. oblongum; 60-90 μm long, 17-25 μm wide (Illustrations of The Japanese Fresh-water Algae, 1977).


Netrium oblongum (De Brary) Lütkemüller var. oblongum cell body 105 μm long, 31.5 μm wide, L/W=3.3, x 640, No. 1-2, Japanese Skunk Cabbage marsh, Tsugaike highland (Tsugaike Natural Park), Otari village, Nagano Pref., Japan, August 11, 2006 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Netrium oblongum Netrium oblongum

Netrium oblongum (De Brary) Lütkemüller var. oblongum large variety ?, cell body 109 μm long, 32.5 μm wide, L/W=3.4, x 640, No. 2-2, Japanese Skunk Cabbage marsh, Tsugaike highland (Tsugaike Natural Park), Otari village, Nagano Pref., Japan, August 11, 2006 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Netrium oblongum Netrium oblongum

Netrium oblongum (De Brary) Lütkemüller var. oblongum cell body 131 μm long, 32.5 μm wide, L/W=4.0, x 640, No. 3-2, Japanese Skunk Cabbage marsh, Tsugaike highland (Tsugaike Natural Park), Otari village, Nagano Pref., Japan, August 11, 2006 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Netrium oblongum Netrium oblongum

Images of collecting locality: Japanese Skunk Cabbage marsh, Tsugaike highland (Tsugaike Natural Park), Otari village, Nagano Pref., Japan, August 11, 2006 by Y. Tsukii


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