Sphaerococcus cornutus (Turner) C.Agardh, 1822 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Rhodophyta class Florideophyceae order Plocamiales family Plocamiaceae genus Plocamium species Plocamium cornutum Name Homonyms Sphaerococcus cornutus (Turner) C.Agardh, 1822