Lecidea petraea f. grande Flörke Dataset GBIF Backbone Taxonomy Rank FORM Classification kingdom Fungi phylum Ascomycota class Lecanoromycetes order Rhizocarpales family Rhizocarpaceae genus Rhizocarpon species Rhizocarpon grande Name Homonyms Lecidea petraea f. grande Flörke ex Flot. Lecidea petraea f. grande Flörke