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Soft-Bodied Stream Algae of California

Group name:



Key to groups of cyanobacteria


Cyanobacteria (Blue-green algae)

1a. Unicells or colonies Group 1: Unicells and colonial cyanobacteria
1b. Filamentous 2
2a. Filaments undifferentiated without heterocysts and akinetes Group 2: Filamentous non-heterocystous cyanobacteria
2b. Filaments differentiated with heterocysts and and sometimes akinetes Group 3: Filamentous heterocystous cyanobacteria