Halimeda tuna var. platydisca (Decaisne) Børgesen, 1911 Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Chlorophyta class Ulvophyceae order Bryopsidales family Halimedaceae genus Halimeda species Halimeda tuna Name Homonyms Halimeda tuna var. platydisca (Decaisne) Børgesen, 1911 Halimeda tuna f. platydisca (Decaisne) E.S.Barton, 1901