| 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) | 
