Collema tenax f. papulosum (Schaer.) Degel., 1954 Dataset GBIF Backbone Taxonomy Rank FORM Classification kingdom Fungi phylum Ascomycota class Lecanoromycetes order Peltigerales family Collemataceae genus Enchylium species Enchylium tenax Name Homonyms Collema tenax f. papulosum (Schaer.) Degel., 1954