Euastrum spinulosum var. africanum (Nordstedt) Y.Okada 1943

Division     Charophyta
Class     Zygnematophyceae
Order     Desmidiales
Family    Desmidiaceae
Basionym     Euastrum spinulosum subsp. africanum Nordstedt

    Cells medium in size, compressed, appearing more or less circular in shape, constricted at middle; sinus closed with dilated extremities; apex truncated with a slightly depressed apical notch. Cells measure 45-58 µm long, 40-54 µm broad; Isthmus10-13 µm broad. Semi cells lobed. Cell wall punctate. Chloroplast two per semi cell, axile; each with a pyrenoid.


Planktonic alga prefers oligo-mesotrophic water bodies.

Distribution in India

Maharashtra (Patil and Kumawat, 2015); Tuticorin, Sivagangai, Madurai and Thirunelveli Districts, Tamil Nadu (Maheswari and Baluswami, 2017a, 2017c).