Defining Characteristics:
  • Colony forming? No
  • Filamentous? Yes
  • Soliatary to loose mat-forming
  • Cylindrical cells
    • Cells always longer than wide
    • Evident constriction at cross walls
  • Aerotopes present
  • Heterocysts and akinetes absent
  • Could be confused with: Leptolyngbya

Pseudanabaena

Pseudanabaena

Pseudanabaena

Mat

Pseudanabaena - Mat