Microsphaera alni subsp. divaricata Wallr. Dataset GBIF Backbone Taxonomy Rank SUBSPECIES Classification kingdom Fungi phylum Ascomycota class Leotiomycetes order Helotiales family Erysiphaceae genus Erysiphe species Erysiphe divaricata Name Homonyms Microsphaera alni var. divaricata (Wallr.) M.E.Jones Microsphaera alni subsp. divaricata Wallr.