| Name | Omphalodium arizonicum (Tuckerman ex Willey) Tuckerman |
| Authorship | (Tuckerman ex Willey) Tuckerman |
| Rank | Species |
| Placed in | Omphalodium Meyen & Flotow |
| Citation | 1882 Syn. N. Amer. Lich. 1: 260 |
| Holdings | 16 Specimens held in the Harvard University Herbaria identified as Omphalodium arizonicum (Tuckerman ex Willey) Tuckerman |
| Identification made in | [no date] (16) |