Cosmarium bipunctatum Børgesen 1891

Division     Charophyta
Class     Zygnematophyceae
Order     Desmidiales
Family    Desmidiaceae

    Cells small size, slightly longer than broad, deeply constricted, sinus closed linear, semicells trapeziform with convex lateral margins, apex broadly truncate. cells measure 19-25 µm in length and 14-18 µm in breadth, Isthmus 5-7.5 µm broad. Cell wall granulated, chloroplast axial with one central pyrenoid per semicell.


Thalli collected as plankton from Ponds and Lakes.

Distribution in India

Karnataka (Bharathi and Hegde, 1986), Tamil Nadu (Kanyakumari).