Ceramium aculeatum C.Agardh Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Rhodophyta class Florideophyceae order Ceramiales family Spyridiaceae genus Spyridia species Spyridia hypnoides Name Homonyms Ceramium aculeatum C.Agardh ex Decaisne, 1841 Ceramium aculeatum C.Agardh