| Name | Arthonia tetramera Hasse | 
| Authorship | Hasse | 
| Rank | Species | 
| Placed in | Arthonia Acharius | 
| Citation | 1913 Contr. U.S. Natl. Herb. 17: 19 | 
| Holdings | 3 Specimens held in the Harvard University Herbaria identified as Arthonia tetramera Hasse | 
| Identification made in | 1999 (3) | 
