Opegrapha polymorpha (Ach.) Tuck. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Fungi phylum Ascomycota class Arthoniomycetes order Arthoniales family Arthoniaceae genus Arthonia species Arthonia polymorpha Name Homonyms Opegrapha polymorpha (Müll.Arg.) Müll.Arg., 1883