Verrucaria calcarea C.Knight, 1883 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Fungi phylum Ascomycota class Dothideomycetes order Pleosporales family Arthopyreniaceae genus Arthopyrenia species Arthopyrenia calcarea Name Homonyms Verrucaria calcarea (L.) Humb. Verrucaria calcarea C.Knight, 1883 Verrucaria calcarea Hoffm.