Helminthocladia hudsonii J.Agardh, 1851 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Rhodophyta class Florideophyceae order Nemaliales family Liagoraceae genus Helminthocladia species Helminthocladia hudsonii Name Synonyms Helminthocladia agardhiana P.S.Dixon, 1962 Homonyms Helminthocladia hudsonii J.Agardh, 1851