Description of Phormidium sp.
Isolated from the Verde River between Horseshoe and Bartlett Lakes (R5)
bullet Trichome and straight to slightly curved
bulletOften form a gelatinous or leathery thallus attached at bottom
bulletTrichomes brilliant blue-green or olive green in color
bulletCells not distinctly separated, but may show some constriction at crosswalls
bulletRarely quadrate, cells 1-2 times broader than long (1-3 µm long)
bulletCylindrical cells with end cells rounded or oval
bulletTrichomes range from 1-2.5 µm in diameter
bulletFirm sheath present, sometimes agglutinated, sometimes thin and colorless
bulletTrichomes non-motile

Phormidium 3



Phormidium sp.

 (cell length 1-3
µ m; width 1-2.5 µ m)

Phormidium 1



Phormidium sp. 

Phormidium 5




Phormidium sp. 

Phormidium 2



Phormidium sp. 

Phormidium 4




Phormidium sp.