Ceramium nodulosum var. barbatum (Kütz.) Furnari & Serio Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Rhodophyta class Florideophyceae order Ceramiales family Ceramiaceae genus Ceramium species Ceramium rubrum Name Homonyms Ceramium nodulosum var. barbatum (Kütz.) Furnari & Serio