Opegrapha hoyae var. fuscidula Räsänen, 1944 Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Fungi phylum Ascomycota class Arthoniomycetes order Arthoniales family Opegraphaceae genus Opegrapha species Opegrapha hoyae Name Homonyms Opegrapha hoyae var. fuscidula Räsänen, 1944