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Diagnostic features

Multiple cyanobacterial isopolar filaments enclosed within a mucilaginous sheath. Filaments usually not tapered at the ends, or if so, only over the length of a few cells. Terminal cell may be conical, but lacking calyptra (thickened cap). Cells cylindrical, usually longer than wide, blue-green or blue. False branching common. Heterocytes and akinetes absent.  Organelles absent from the cells.

Typical habitats

Most of our records are from good quality streams


Kingdom Bacteria
Phylum Cyanobacteria
Class Cyanophyceae
Order Oscillatoriales
Family Schizotrichaceae
Common name Cyanobacteria