Callithamnion hookeri f. areschoughi Rosenv., 1924 Dataset GBIF Backbone Taxonomy Rank FORM Classification kingdom Plantae phylum Rhodophyta class Florideophyceae order Ceramiales family Callithamniaceae genus Gaillona species Gaillona hookeri Name Homonyms Callithamnion hookeri f. areschoughi Rosenv., 1924