the root (no rank)
Bacteria (domain)
Cyanobacteria (phylum)
Nostocales (order)
Nostocaceae (family)
Nostoc (genus)
[hide inferior taxa]
Nostoc commune (species)
Nostoc ellipsosporum (species)
Nostoc linckia (species)
Nostoc muscorum (species)
Nostoc punctiforme (species)
Nostoc sp. (species)
Nostoc spongiaeforme (species)