Phormidium chalybeum (Mertens ex Gomont 1892) Anagnostidis and Komarek 1988 Dataset NCBI Taxonomy Classification phylum Cyanobacteriota class Cyanophyceae order Oscillatoriales family Oscillatoriaceae genus Phormidium species Phormidium chalybeum Name Homonyms Phormidium chalybeum Phormidium chalybeum (Mertens ex Gomont 1892) Anagnostidis and Komarek 1988