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Ulvophyceae: Ulotrichales: Ulotrichaceae

Schmidle 1903

Order: Filamentous algae without branching; cell body mostly cylindrical.
Family: Chloroplasts plate-like or ribbon-like; sexual reproduction by isogamy.

Genus: Filaments without gelatinous sheath, consisting of up to 20 cells; without rhizoids; (Illustrations of the Japanese Freshwater Algae, 1977).
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Planctonema lauterborni
P. lauterborni
P. lauterbornii ?
8.5 x 3 μm
Saitama, 2001

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