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Gamophyceae: Zygnematales: Desmidiaceae

Cosmarium australe
(Raciborski) Lütkemüller
= Actinotaenium australe (Raciborski) Teiling ?

Section [ Actinotaenium ]: Cell body cylindrical, slightly constricted at the center, cell surface smooth or dotted or punctated (Illustrations of The Japanese Fresh-water Algae, 1977).
Species: Cell body medium in size, 65-(67-79) μm long, 38-40-(41-45) μm wide, isthmus 37-(39-41) μm wide, L/W=1.5; semicells semielliptical, with slightly flattened apex, apical view circular; cell wall dotted (Illustrations of The Japanese Fresh-water Algae, 1977).
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Cosmarium
C. australe
87 x 53 μm
Zaike
Sakura-ku
Saitama, 2004
Cosmarium
C. australe
71 x 42 μm
Yamagata, 1999
Cosmarium australe
C. australe
μm
Omine-numa
Tsukiyono
Gunma, 2003
Cosmarium australe
C. australe
78 x 43 μm
Omine-numa
Minakami
Gunma, 2007
Cosmarium australe
C. australe
92 x 47 μm
near Omine mt.
Minakami
Gunma, 2007
Cosmarium australe
C. australe
μm
Miyatoko m.5
Minami-Aizu
Fukushima, 2008
Cosmarium
C. australe
69 x 44 μm
Tajima
Fukushima, 2004
Cosmarium australe
C. australe ?
70 x 53 μm
near Karakemi marsh
Omachi
Nagano, 2005
Cosmarium australe
C. australe
μm
n. Yamakado m.
Nishi-Azai
Shiga, 2008
Cosmarium australe
C. australe ?
91 x 55 μm
Kashibaru m. 5
Karatsu
Saga, 2006
Similar species -- >> C. capax;

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Cosmarium australe
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