Ceramium siliculosum (Dillwyn) C.Agardh, 1811 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Chromista phylum Ochrophyta class Phaeophyceae order Ectocarpales family Ectocarpaceae genus Ectocarpus species Ectocarpus siliculosus Name Homonyms Ceramium siliculosum (Dillwyn) C.Agardh, 1811