| Name | Arthonia pruinosula Nylander |
| Authorship | Nylander |
| Rank | Species |
| Placed in | Arthonia Acharius |
| GUID | urn:lsid:indexfungorum.org:names:376765 |
| Holdings | 5 Specimens held in the Harvard University Herbaria identified as Arthonia pruinosula Nylander |
| Identification made in | [no date] (2), 2016 (2), 2017 (1) |