General appearance of alga? Soft or firm colony (many cells or filaments); or Blue-green algae - cells without organelles.
Colour? green; or blue; or olive.
Habitat freshwater; or saline; or terrestrial.
Aquatic type? lake; or pond; or bogs; or puddles and ditches.
Free-living or attached? attached to rocks; or attached in sand or soil.
Motile? Not motile.
Is mucilage or gelatinous material present? Mucilage present in obvious concentric rings around each cell or group of cells in the colony.; or Mucilage present but not stratified.
Filament: Branching type not recorded.
Filaments in bundles? not recorded.
Filament: Cell arrangement not recorded.
Filament: Filament diameter not recorded.
Cell: Individual cell shape globose or spherical; or cylindrical; or ovoid.
Cell: Is there a median constriction (isthmus)? Absent.
Cell: Do the cells bear spines or cellular extensions? Absent.
Cell: How many flagella per cell? Absent.
Cell: Is a red eyespot conspicuous? no.
Cell: Heterocytes absent.
Cell: Akinetes absent.
Cell: Cell length 1.5–8 µm.
Cell: Cell diameter 1–4 µm.
Cell: How many pyrenoids per plastid? 0.
Cell: How many plastids? 0.
Cell: Plastid shape? not recorded.
Cell: Position of plastid in cell? not recorded.
Colony: Are remnants of the mother cell wall present or is the entire mother cell wall persistent? Mother cell wall absent.
Colony: cell arrangement Irregularly arranged (no uniform number of cells); or Cells in groups of 2.
Colony: Shape of colony? Irregular or amorphous (no clear shape).
Colony: Are cells or groups of cells connected by mucilaginous threads? No.
Colony: Cells in one layer or throughout throughout colony.
Capable of forming blooms? Not observed.
Classification: Division Cyanobacteria (Blue-green algae).
Classification: Class Cyanophyceae.
Classification: Family Microcystaceae.
Reference Skinner et al. (2001a:576), McGregor et al. (2001:18), Komarek et al. (1999:71), Baker (1992:21), Bourelly (1970:315), Smith (1950:560), Dillard (1999:84), Ling et al. (
2000:12), Day et al. (1995:201), Entwisle et al. (1999c).