Polysiphonia ramulosa (C.Agardh) Sprengel, 1827 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Rhodophyta class Florideophyceae order Ceramiales family Rhodomelaceae genus Polysiphonia species Polysiphonia opaca Name Homonyms Polysiphonia ramulosa (C.Agardh) Sprengel, 1827