| Name | Peridermium harknessii J. P. Moore |
| Authorship | J. P. Moore |
| Rank | Species |
| Placed in | Peridermium |
| Citation | 1884 Bull. Calif. Acad. Sci. 1: 37 |
| Holdings | 3 Specimens held in the Harvard University Herbaria identified as Peridermium harknessii J. P. Moore |
| Identification made in | [no date] (3) |