Pleurotaenium ehrenbergii (Ralfs) De Bary 1858

Division     Charophyta
Class     Zygnematophyceae
Order     Desmidiales
Family    Desmidiaceae
Basionym     Docidium ehrenbergii Ralfs
SynonymDocidium ehrenbergii var. delpontei Playfair; Docidium dilatatum (Cleve) Lundell; Pleurotaenium ehrenbergii var. constrictum Krieger; Pleurotaenium ehrenbergii var. granulatum (Ralfs) West & West

    Cells large size slightly constricted at the center, isthmus 9-12 µm, semicells with conspicuous basal inflation and usually with 1-2 smaller swellings beyond. Semicell margins slightly tapered to round truncated apex with 7-10 tubercles (rounded or conical) and punctuated cell wall. Cells with elongated parietal chloroplasts with many pyrenoids. Cells measure 240-380 µm length and 17-25 µm in breadth.


Freshwater alga prefers oligo-mesotrophic water bodies.