| Name | Phyllactinia ostryae U. Braun |
| Authorship | U. Braun |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Phyllactinia |
| Citation | 2012 Taxon. Man. Erysiphales 265 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Phyllactinia ostryae U. Braun |
| Identification made in | [no date] (2) |