| Name | Usnea difformis Motyka |
| Authorship | Motyka |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Usnea Dillenius ex Adanson |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Usnea difformis Motyka |
| Identification made in | 1959 (1) |
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