Hapalosiphon Nägeli ex Bornet & Flahault Dataset Nortaxa (Artsnavnebasen) Rank GENUS Classification kingdom Bacteria phylum Cyanobacteria class Cyanophyceae order Nostocales family Hapalosiphonaceae genus Hapalosiphon Name Homonyms Hapalosiphon Nägeli ex Bornet & Flahault