Halymenia dichotoma (J.Agardh) Mont., 1846 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Rhodophyta class Florideophyceae order Nemastomatales family Nemastomataceae genus Nemastoma species Nemastoma dichotomum Name Homonyms Halymenia dichotoma (J.Agardh) J.Agardh, 1876 Halymenia dichotoma (J.Agardh) Mont., 1846