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