Hydrolithon craspedium (Foslie) P.C.Silva Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Rhodophyta class Florideophyceae order Corallinales family Hydrolithaceae genus Hydrolithon species Hydrolithon craspedium Name Synonyms Lithophyllum craspedium Foslie Porolithon craspedium (Foslie) Foslie, 1909 Homonyms Hydrolithon craspedium (Foslie) P.C.Silva