Basionym Name:Oidium penicillioides Rivolta, Dei parassiti vegetali ...: 448 (1873)
Homotypic synonyms:Alysidium penicillioides (Rivolta) Kuntze, Revis. gen. pl. (Leipzig) 3(3): 442 (1898)Oospora penicillioides (Rivolta) Sacc., Syll. fung., Addit. I-IV (Abellini): 372 (1886)