| Name | Peltigera aphthosa (Linnaeus) Willdenow |
| Authorship | (Linnaeus) Willdenow |
| Rank | Species |
| Placed in | Peltigera Willdenow |
| Contains | Peltigera aphthosa var. variolosa (A. Massalongo) J. W. Thomson |
| Citation | 1787 Fl. Berol. Prodr. 347 |
| Holdings | 167 Specimens held in the Harvard University Herbaria identified as Peltigera aphthosa (Linnaeus) Willdenow |
| Identification made in | [no date] (162), 1945 (3), 2010 (1), 2018 (1) |