Erysiphe horridula (Wallr.) Leveille Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Fungi phylum Ascomycota class Leotiomycetes order Helotiales family Erysiphaceae genus Golovinomyces species Golovinomyces cynoglossi Name Homonyms Erysiphe horridula (Wallr.) Rabenh. Erysiphe horridula (Wallr.) Leveille