Grateloupia cutleriae f. maxima N.L.Gardner, 1911 Dataset GBIF Backbone Taxonomy Rank FORM Classification kingdom Plantae phylum Rhodophyta class Florideophyceae order Halymeniales family Halymeniaceae genus Halymenia species Grateloupia doryphora Name Homonyms Grateloupia cutleriae f. maxima N.L.Gardner, 1911