Ceramium pennatum J.Agardh, 1851 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Rhodophyta class Florideophyceae order Ceramiales family Ceramiaceae genus Ceramium species Ceramium pallidum Name Homonyms Ceramium pennatum Hornem., 1813 Ceramium pennatum J.Agardh, 1851 Ceramium pennatum Roth, 1806