Nostoc microscopicum Carmichael 1833 ex Bornet et Flahault 1888 Dataset NCBI Taxonomy Classification phylum Cyanobacteriota class Cyanophyceae order Nostocales family Nostocaceae genus Nostoc species Nostoc microscopicum Name Homonyms Nostoc microscopicum Nostoc microscopicum 139a Nostoc microscopicum Carmichael 1833 ex Bornet et Flahault 1888