Collema tenuissimum (Dicks.) Ach. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Fungi phylum Ascomycota class Lecanoromycetes order Peltigerales family Collemataceae genus Scytinium species Scytinium tenuissimum Name Homonyms Collema tenuissimum (Dicks.) Hoffm. Collema tenuissimum (Dicks.) Ach.