Hapalosiphon Nageli in Kutzing ex Bornet et Flahault 1887 Dataset NCBI Taxonomy Classification phylum Cyanobacteriota class Cyanophyceae order Nostocales family Hapalosiphonaceae genus Hapalosiphon Name Homonyms Hapalosiphon Hapalosiphon Nageli in Kutzing ex Bornet et Flahault 1887