Sargassum spinuligerum f. angustifolia Grunow Dataset GBIF Backbone Taxonomy Rank FORM Classification kingdom Chromista phylum Ochrophyta class Phaeophyceae order Fucales family Sargassaceae genus Sargassum species Sargassum spinuligerum Name Homonyms Sargassum spinuligerum f. angustifolia Grunow