Cystoseira pycnoclada Schiffner Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Chromista phylum Ochrophyta class Phaeophyceae order Fucales family Sargassaceae genus Cystoseira species Cystoseira schiffneri Name Homonyms Cystoseira pycnoclada Schiffner ex Gerloff & Nizamuddin, 1976 Cystoseira pycnoclada Schiffner