Pharcidia arthoniae (Arnold) Arnold Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Fungi phylum Ascomycota class Dothideomycetes order Mycosphaerellales family Mycosphaerellaceae genus Stigmidium species Stigmidium arthoniae Name Homonyms Pharcidia arthoniae (Arnold) G.Winter Pharcidia arthoniae (Arnold) Arnold