Usnea fragilescens Hav. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Fungi phylum Ascomycota class Lecanoromycetes order Lecanorales family Parmeliaceae genus Usnea species Usnea fragilescens Name Homonyms Usnea fragilescens Hav. ex Lynge Usnea fragilescens Hav.