Petalonema alatum Berk. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Bacteria phylum Cyanobacteria class Cyanobacteriia order Cyanobacteriales family Scytonemataceae genus Petalonema species Petalonema alatum Name Homonyms Petalonema alatum Berk. ex Kirchn. Petalonema alatum (Borzì ex Bornet & Flahault) Correns Petalonema alatum Berk.