| Name | Usnea perplexans Stirton |
| Authorship | Stirton |
| Rank | Species |
| Placed in | Usnea Dillenius ex Adanson |
| GUID | urn:lsid:indexfungorum.org:names:408467 |
| Citation | 1881 Scott. Naturalist (Edinburgh) 6: 103 |
| Holdings | 4 Specimens held in the Harvard University Herbaria identified as Usnea perplexans Stirton |
| Identification made in | [no date] (4) |
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