Cystoseira barbata f. hoppii (C.Agardh) Woronichin, 1908 Dataset GBIF Backbone Taxonomy Rank FORM Classification kingdom Chromista phylum Ochrophyta class Phaeophyceae order Fucales family Sargassaceae genus Cystoseira species Gongolaria barbata Name Homonyms Cystoseira barbata f. hoppii (C.Agardh) Woronichin, 1908 Cystoseira barbata var. hoppii (C.Agardh) J.Agardh, 1842