Porolithon improcerum (Foslie & Howe) Lemoine Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Rhodophyta class Florideophyceae order Corallinales family Porolithaceae genus Porolithon species Porolithon improcerum Name Homonyms Porolithon improcerum (Foslie & Howe) Lemoine Porolithon improcerum (Foslie & M.Howe) M.Howe