Halymenia purpurascens var. crispata Grev., 1830 Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Rhodophyta class Florideophyceae order Gigartinales family Dumontiaceae genus Dumontia species Dumontia contorta Name Homonyms Halymenia purpurascens var. crispata Grev., 1830