Polysiphonia badia (Dillwyn) Sprengel, 1827 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Rhodophyta class Florideophyceae order Ceramiales family Rhodomelaceae genus Vertebrata species Vertebrata nigra Name Homonyms Polysiphonia badia (Dillwyn) Sprengel, 1827 Polysiphonia badia Kütz., 1849