Calothrix C.Agardh Dataset United Kingdom Species Inventory (UKSI) Rank GENUS Classification phylum Cyanobacteria class Cyanophyceae order Nostocales family Rivulariaceae genus Calothrix Name Homonyms Calothrix C.Agardh Calothrix C.Agardh ex Bornet & Flahault Calothrix C.Agardh Calothrix Calothrix C.Agardh ex Bornet & Flahault