Cylindrospermum majus Dataset United Kingdom Species Inventory (UKSI) Rank SPECIES Classification phylum Cyanobacteria class Cyanophyceae order Nostocales family Nostocaceae genus Cylindrospermum species Cylindrospermum majus Name Homonyms Cylindrospermum majus Kütz. ex Bornet & Flahault Cylindrospermum majus