Collema melaenum (Scop.) Rabenh. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Fungi phylum Ascomycota class Lecanoromycetes order Peltigerales family Collemataceae genus Lathagrium species Lathagrium cristatum Name Homonyms Collema melaenum (Ach.) Ach. Collema melaenum (Scop.) Rabenh.