Lecidea amylacea Ach., 1808 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Fungi phylum Ascomycota class Lecanoromycetes order Rhizocarpales family Rhizocarpaceae genus Rhizocarpon species Rhizocarpon petraeum Name Homonyms Lecidea amylacea Ach., 1808 Lecidea amylacea (Ehrh. ex Pers.) Nyl.