| Name | Usnea cavernosa Tuckerman |
| Authorship | Tuckerman |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Usnea Dillenius ex Adanson |
| GUID | urn:lsid:indexfungorum.org:names:408336 |
| Citation | 1850 Lake Superior [Agassiz] 171 |
| Holdings | 89 Specimens held in the Harvard University Herbaria identified as Usnea cavernosa Tuckerman |
| Identification made in | [no date] (84), 1849 (1), 1956 (1), 1997 (1), 2005 (1), 2025 (1) |