Rivularia atra Roth ex Bornet & Flahault, 1886 Dataset United Kingdom Species Inventory (UKSI) Rank SPECIES Classification phylum Cyanobacteria class Cyanophyceae order Nostocales family Rivulariaceae genus Rivularia species Rivularia atra Name Synonyms Rivularia atra Rivularia atra (Roth) Bornet & Flahault Homonyms Rivularia atra Roth ex Bornet & Flahault, 1886 Rivularia atra (Roth) Bornet & Flahault Rivularia atra