"Erysiphaceae" . "Erysiphales" . "Ascomycota" . "Oidium laevisporum" . "(Cooke) Linder 1942" . "Leotiomycetes" . . . . . . . . . . "Fungi" . . . "Oidium" . "Oidium laevisporum (Cooke) Linder 1942" .