Opegrapha xylographoides J.Steiner, 1915 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Fungi phylum Ascomycota class Arthoniomycetes order Arthoniales family Opegraphaceae genus Opegrapha species Opegrapha celtidicola Name Homonyms Opegrapha xylographoides J.Steiner, 1915