Phylloporia ribis f. ulmi (Bourdot & Galzin) Dataset GBIF Backbone Taxonomy Rank FORM Classification kingdom Fungi phylum Basidiomycota class Agaricomycetes order Hymenochaetales family Hymenochaetaceae genus Phylloporia species Phylloporia ribis Name Homonyms Phylloporia ribis f. ulmi (Bourdot & Galzin)