| Name | Arthonia anastomosans (Acharius) Nylander |
| Authorship | (Acharius) Nylander |
| Rank | Species |
| Placed in | Arthonia Acharius |
| Citation | 1861 Lich. Scand. 259 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Arthonia anastomosans (Acharius) Nylander |
| Identification made in | [no date] (1) |