| Name | Usnea mexicana Vainio |
| Authorship | Vainio |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Usnea Dillenius ex Adanson |
| GUID | urn:lsid:indexfungorum.org:names:408444 |
| Citation | 1926 Dansk Bot. Ark. 4(no. 11): 3 |
| Holdings | 16 Specimens held in the Harvard University Herbaria identified as Usnea mexicana Vainio |
| Identification made in | [no date] (6), 2005 (2), 2007 (3), 2008 (5) |
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