Cyanobacteria families

The Nostocaceae are a family of cyanobacteria that forms filament-shaped colonies enclosed in mucus or a gelatinous sheath. Some genera in this family are found primarily in fresh water (such as Nostoc), while others are found primarily in salt water (such as Nodularia). Other genera (e.g. Anabaena) may be found in both fresh and salt water. Most benthic algae of the order Nostocales belong to this family.

The Rivulariaceae are a family of cyanobacteria within the Nostocales in which the filaments (trichomes) are tapered from wider at the base to narrower at the tip.

The Microcoleaceae are a family of cyanobacteria.

The Aphanizomenonaceae are a family of cyanobacteria containing mostly genera which produce aerotopes. Cyanobacteria from the family Aphanizomenonaceae may form blooms in lentic freshwater bodies which may be dangerous for humans.

Gomphosphaeriaceae is a family of cyanobacteria.

The Pseudanabaenaceae are a family of cyanobacteria. The order Pseudanabaenales consists of this family and Thalassoporaceae (Thalassoporum).

The Hapalosiphonaceae are a family of cyanobacteria.

Chroococcaceae is a family of cyanobacteria.

The Oscillatoriaceae are a family of cyanobacteria.

The Synechococcaceae are a family of cyanobacteria.

The Merismopediaceae are a family of cyanobacteria.

Microcystaceae is family of cyanobacteria which contains the harmful algal bloom Microcystis aeruginosa.