Oidium abortifaciens J.Kickx f. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Fungi phylum Ascomycota class Leotiomycetes order Helotiales family Erysiphaceae genus Oidium species Oidium abortifaciens Name Homonyms Oidium abortifaciens J.Kickx f. Oidium abortifaciens (E.J.Quekett) Berk. & Broome