| Name | Usnea rubiginea (Michaux) A. Massalongo |
| Authorship | (Michaux) A. Massalongo |
| Rank | Species |
| Placed in | Usnea Dillenius ex Adanson |
| Holdings | 23 Specimens held in the Harvard University Herbaria identified as Usnea rubiginea (Michaux) A. Massalongo |
| Identification made in | [no date] (21), 1965 (2) |
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