Family: Filamentous algae without branching; cell body cylindrical or fusiform swelled at the center; a single or many chloroplasts plate-like or small disc-shaped (Illustrations of The Japanese Fresh-water Algae, 1977).
Genus: Soil algae; "H" structure of the cell wall inconspicuous (Illustrations of The Japanese Fresh-water Algae, 1977).
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Similar genus ->> Tribonema;
X. debile
8-24 x 3-4 μm
Ceske Stredohori M.
Czech Republic, 2001
X. solidum
6-20 x 5-7 μm
Ceske Stredohori M.
Czech Republic, 2001
X. solidum ?
22-30 x 11 μm
Gyoda general p.
Gyoda
Saitama, 2006
X. solidum ?
11 x 10 μm
Kitamoto nature o. p.
Kitamoto
Saitama, 2006
Xanthonema sp.
12.5-25 x 10 μm
Akigase Park
Saitama, 2002
Xanthonema sp.
stock Sua-4
μm
Akigase Park
Saitama, 2002
Xanthonema sp.
stock Sua-4
μm
Akigase Park
Saitama, 2002
X. debilis ?
4-7 x 5 μm
Akigase Park
Saitama, 2002
Xanthonema sp.
13 x 11 μm
Ayame-en
Ushiku
Ibaraki, 2007