Placodium tetrastichum (Nyl.) A.L.Sm. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Fungi phylum Ascomycota class Lecanoromycetes order Teloschistales family Teloschistaceae genus Caloplaca species Caloplaca ochracea Name Homonyms Placodium tetrastichum (Nyl.) H.Olivier Placodium tetrastichum (Nyl.) A.L.Sm.