| Name | Erysiphe ilicis Castagne |
| Authorship | Castagne |
| Rank | Species |
| NomenclaturalStatus | LaterHomonym |
| Placed in | Erysiphe R. Hedwig ex de Candolle: Fries |
| Citation | 145 Cat. Pl. Marseille 191 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Erysiphe ilicis Castagne |
| Identification made in | 1984 (1) |