| 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 | 87 Specimens held in the Harvard University Herbaria identified as Usnea cavernosa Tuckerman |
| Identification made in | [no date] (83), 1849 (1), 1956 (1), 1997 (1), 2005 (1) |
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