Merrifieldia semiodactylus (Mann, 1855) Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Rhodophyta class Florideophyceae order Gigartinales family Hypneaceae genus Hypnea species Merrifieldia semiodactylus Name Homonyms Merrifieldia semiodactylus (Mann, 1855)