Sebdenia maculata (J.Agardh) De Toni, 1900 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Rhodophyta class Florideophyceae order Halymeniales family Halymeniaceae genus Halymenia species Halymenia maculata Name Homonyms Sebdenia maculata (J.Agardh) De Toni, 1900