is a species of the class Cyanophyceae in the family Nostocaceae and order Nostocales.
Nostoc caeruleum
Nostoc calcicola
Nostoc coeruleum
Nostoc comminutum
Nostoc commune
Nostoc depressum
Nostoc disciforme
Nostoc ellipsosporum
Nostoc kihlmani
Nostoc macrosporum
Nostoc microscopicum
Nostoc minutum
Nostoc muscorum
Nostoc parmelioides
Nostoc peltigerae
Nostoc pruniforme
Nostoc sphaericum
Nostoc spumigena
Nostoc verrucosum