Lecanora crassa f. dufourii (Fr.) Schaer., 1850 Dataset GBIF Backbone Taxonomy Rank FORM Classification kingdom Fungi phylum Ascomycota class Lecanoromycetes order Lecanorales family Stereocaulaceae genus Squamarina species Squamarina cartilaginea Name Homonyms Lecanora crassa f. dufourii (Fr.) Schaer., 1850