Buellia atroalba (Ach.) Flot. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Fungi phylum Ascomycota class Lecanoromycetes order Rhizocarpales family Rhizocarpaceae genus Rhizocarpon species Rhizocarpon badioatrum Name Homonyms Buellia atroalba (Ach.) Fw. Buellia atroalba (Ach.) Flot.