Cylindrospermum majus Kützing ex Bornet & Flahault Dataset Rank SPECIES Classification kingdom Bacteria phylum Cyanobacteria class Cyanophyceae order Cyanobacteriales family Nostocaceae genus Cylindrospermum species Cylindrospermum majus Name Homonyms Cylindrospermum majus Kützing ex Bornet & Flahault