| Name | Peltigera extenuata (Nylander ex Vainio) Lojka | 
| Authorship | (Nylander ex Vainio) Lojka | 
| Rank | Species | 
| NomenclaturalStatus | NomLeg | 
| Placed in | Peltigera Willdenow | 
| Citation | 1886 Fasc. 5: no. 222 | 
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Peltigera extenuata (Nylander ex Vainio) Lojka | 
| Identification made in | 2019 (1) | 
