| Name | Parmotrema mesogenes (Nylander) Hale |
| Authorship | (Nylander) Hale |
| Rank | Species |
| Placed in | Parmotrema A. Massalongo |
| GUID | urn:lsid:indexfungorum.org:names:343085 |
| Citation | 1974 Phytologia 28(4): 337 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Parmotrema mesogenes (Nylander) Hale |
| Identification made in | [no date] (2) |