Limnactis dura Kütz. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Bacteria phylum Cyanobacteria class Cyanobacteriia order Cyanobacteriales family Nostocaceae genus Rivularia species Rivularia dura Name Homonyms Limnactis dura Kütz. ex Bornet & Flahault Limnactis dura Kütz.