Mastocarpus radula (Esper) Kütz., 1843 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Rhodophyta class Florideophyceae order Gigartinales family Gigartinaceae genus Sarcothalia species Sarcothalia radula Name Homonyms Mastocarpus radula (Esper) Kütz., 1843