| Name | Polyporus adustus (Willdenow) Fries: Fries |
| Authorship | (Willdenow) Fries: Fries |
| Rank | Species |
| Placed in | Polyporus |
| Citation | 1821 Syst. Mycol. 1: 363 |
| Holdings | 23 Specimens held in the Harvard University Herbaria identified as Polyporus adustus (Willdenow) Fries: Fries |
| Identification made in | [no date] (23) |