Collema callopismum f. granulosum Degel., 1954 Dataset GBIF Backbone Taxonomy Rank FORM Classification kingdom Fungi phylum Ascomycota class Lecanoromycetes order Peltigerales family Collemataceae genus Scytinium species Scytinium callopismum Name Homonyms Collema callopismum f. granulosum Degel., 1954