| Name | Omphalia hydrogramma (Bulliard) Gillet: Fries |
| Authorship | (Bulliard) Gillet: Fries |
| Rank | Species |
| Placed in | Omphalia |
| Citation | 1876 ["1878"] Hyménomycètes 290 |
| Holdings | 3 Specimens held in the Harvard University Herbaria identified as Omphalia hydrogramma (Bulliard) Gillet: Fries |
| Identification made in | [no date] (3) |