Cosmarium botrytis Meneghini ex Ralfs 1848

Division     Charophyta
Class     Zygnematophyceae
Order     Desmidiales
Family    Desmidiaceae
SynonymEuastrum botrytis (Meneghini ex Ralfs) Nägeli 1849; Heterocarpella botrytis Bory 1825; Didymidium botrytis (Bory) Reinsch 1866; Ursinella botrytis (Bory) Kuntze 1891

    Cells medium size, longer than broad. Cells deeply constricted, sinus linear and closed. Semicells pyramidal with broadly rounded angles. Cell wall finely granulated, apex truncated. Cells measure 53-75 μm length, breadth 30-38 μm, isthmus 10-14.5 μm broad.


It prefers mesotrophic and slightly acidic to slightly alkaline water bodies.