Cystoseira discors f. dubia Erceg., 1952 Dataset GBIF Backbone Taxonomy Rank FORM Classification kingdom Chromista phylum Ochrophyta class Phaeophyceae order Fucales family Sargassaceae genus Cystoseira species Cystoseira schiffneri Name Homonyms Cystoseira discors f. dubia Erceg., 1952