Heterodermia galactophylla (Tuck.) Trevis. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Fungi phylum Ascomycota class Lecanoromycetes order Caliciales family Physciaceae genus Heterodermia species Heterodermia galactophylla Name Homonyms Heterodermia galactophylla (Tuck.) W.L.Culb. Heterodermia galactophylla (Tuck.) Trevis.