| Name | Parmelia horrescens Taylor |
| Authorship | Taylor |
| Rank | Species |
| Placed in | Parmelia Acharius |
| GUID | urn:lsid:indexfungorum.org:names:397677 |
| Citation | 1836 Fl. Hibern. 2: 144 |
| Holdings | 4 Specimens held in the Harvard University Herbaria identified as Parmelia horrescens Taylor |
| Identification made in | [no date] (3), 1963 (1) |