Polysiphonia spiculifera Zanardini 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 spiculifera Zanardini ex Kütz., 1864 Polysiphonia spiculifera Zanardini