Nostoc sphaeroides Kützing Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Bacteria phylum Cyanobacteria class Cyanobacteriia order Cyanobacteriales family Nostocaceae genus Nostoc species Nostoc sphaeroides Name Homonyms Nostoc sphaeroides Kützing Nostoc sphaeroides Kütz. ex Bornet & Flahault