"Peronospora melampyri (Bucholtz) Davis 1932" . . . . "Peronospora" . "Oomycota" . "Peronosporales" . . . "Chromista" . . . . . . "Peronosporaceae" . "Peronospora melampyri" . "(Bucholtz) Davis 1932" . "Oomycetes" .