Oscillatoria princeps Vaucher ex Gomont
Oscillatoria princeps is the type species of the cyanobacterial genus Oscillatoria. The cyanobacterium is dark blue-green in colour, due to the presence of the phycobilin pigments phycocyanin and phycoerythrin. Individual filaments are blue-green to olive green in colour.
Trichomes blue-green, highly motile, not constricted at the cross-walls, narrowing toward the often bent ends, 24–36 ?m wide in the central area of the trichome and 14-27 (30) µm wide at the ends. Apical cells nearly hemispherical and often yellowish (together with up to five adjacent cells). Granulation never located at the cross-walls, but fine to larger granules randomly dispersed throughout cells. Cells 2-9 µm long, new cell walls form from the outside of the trichome often before the previous division is finished. Cell wall colourless and thick, necridic cells present, no sheath or calyptra observed.
This particular alga was collected from stagnant water bodies in Chennai City's Wetland area... This alga widely distributed in most wetand areas of Chennai and also other habitats. This alga cosmopolitan in distribution.
