| Name | Irpex ambiguus Peck |
| Authorship | Peck |
| Rank | Species |
| Placed in | Irpex |
| GUID | urn:lsid:indexfungorum.org:names:256616 |
| Citation | 1887 Rep. (Annual) New York State Mus. Nat. Hist. 40: 55 |
| Holdings | 4 Specimens held in the Harvard University Herbaria identified as Irpex ambiguus Peck |
| Identification made in | [no date] (4) |
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