Fucus platycarpus f. spiralis (L.) Thuret, 1878 Dataset GBIF Backbone Taxonomy Rank FORM Classification kingdom Chromista phylum Ochrophyta class Phaeophyceae order Fucales family Fucaceae genus Fucus species Fucus spiralis Name Homonyms Fucus platycarpus var. spiralis (L.) Rosenv., 1897 Fucus platycarpus f. spiralis (L.) Thuret, 1878