| Name | Hymenoscyphus pezizoideus (Cooke & W. Phillips) Gamundi |
| Authorship | (Cooke & W. Phillips) Gamundi |
| Rank | Species |
| Placed in | Hymenoscyphus |
| Citation | 1998 Fl. Criptog. Tierra del Fuego 10: 90 |
| Holdings | 3 Specimens held in the Harvard University Herbaria identified as Hymenoscyphus pezizoideus (Cooke & W. Phillips) Gamundi |
| Identification made in | [no date] (2), 2015 (1) |