Byssoloma polychromum (Müll.Arg.) Zahlbr. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Fungi phylum Ascomycota class Lecanoromycetes order Lecanorales family Byssolomataceae genus Byssoloma species Byssoloma polychromum Name Homonyms Byssoloma polychromum (Müll.Arg.) Zahlbr.