Verrucaria rupifraga (A.Massal.) Nyl. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Fungi phylum Ascomycota class Eurotiomycetes order Verrucariales family Verrucariaceae genus Staurothele species Staurothele rupifraga Name Homonyms Verrucaria rupifraga (A.Massal.) Garov. Verrucaria rupifraga (A.Massal.) Nyl. Verrucaria rupifraga (A.Massal.) Nyl. ex Cromb.