Cystoseira spicata subsp. crassa Erceg., 1952 Dataset GBIF Backbone Taxonomy Rank SUBSPECIES Classification kingdom Chromista phylum Ochrophyta class Phaeophyceae order Fucales family Sargassaceae genus Cystoseira species Ericaria amentacea Name Homonyms Cystoseira spicata subsp. crassa Erceg., 1952