Ulva contorta (S.G.Gmelin) De Candolle, 1805 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Rhodophyta class Florideophyceae order Gigartinales family Dumontiaceae genus Dumontia species Dumontia contorta Name Homonyms Ulva contorta (S.G.Gmelin) De Candolle, 1805