| Name | Polyporus rostafinskii P. Karsten |
| Authorship | P. Karsten |
| Rank | Species |
| Placed in | Polyporus |
| Citation | 1876 Bidrag Kännedom Finlands Natur Folk 25: 274 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Polyporus rostafinskii P. Karsten |
| Identification made in | [no date] (1) |