| Name | Usnea dimorpha (Müller Arg.) Motyka |
| Authorship | (Müller Arg.) Motyka |
| Rank | Species |
| Placed in | Usnea Dillenius ex Adanson |
| GUID | urn:lsid:indexfungorum.org:names:371070 |
| Citation | 1937 Usnea 2: 449 |
| Holdings | 10 Specimens held in the Harvard University Herbaria identified as Usnea dimorpha (Müller Arg.) Motyka |
| Identification made in | [no date] (7), 2005 (3) |