Sargassum horneri subsp. furcatodentatum Kuntze, 1880 Dataset GBIF Backbone Taxonomy Rank SUBSPECIES Classification kingdom Chromista phylum Ochrophyta class Phaeophyceae order Fucales family Sargassaceae genus Sargassum species Sargassum horneri Name Homonyms Sargassum horneri subsp. furcatodentatum Kuntze, 1880