Sargassum hystrix var. fluitans Børgesen, 1914 Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Chromista phylum Ochrophyta class Phaeophyceae order Fucales family Sargassaceae genus Sargassum species Sargassum fluitans Name Homonyms Sargassum hystrix var. fluitans Børgesen, 1914