Leptogium quadratum (Körb.) Nyl. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Fungi phylum Ascomycota class Lecanoromycetes order Peltigerales family Collemataceae genus Rostania species Rostania occultata Name Homonyms Leptogium quadratum (Körb.) J.Lahm Leptogium quadratum (Körb.) Nyl. Leptogium quadratum (J.Lahm ex Zwackh) Norrl.