Melobesia marginata f. sargassi Foslie, 1904 Dataset GBIF Backbone Taxonomy Rank FORM Classification kingdom Plantae phylum Rhodophyta class Florideophyceae order Corallinales family Hydrolithaceae genus Hydrolithon species Hydrolithon sargassi Name Homonyms Melobesia marginata f. sargassi Foslie, 1904