| Name | Usnea mutabilis Stirton |
| Authorship | Stirton |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Usnea Dillenius ex Adanson |
| GUID | urn:lsid:indexfungorum.org:names:408452 |
| Citation | 1881 Scott. Naturalist (Edinburgh) 6: 107 |
| Holdings | 54 Specimens held in the Harvard University Herbaria identified as Usnea mutabilis Stirton |
| Identification made in | [no date] (37), 1884 (1), 1909 (1), 1959 (2), 2005 (13) |
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