| Name | Arthonia austinii Willey |
| Authorship | Willey |
| Rank | Species |
| Placed in | Arthonia Acharius |
| Citation | 1890 Syn. Arthonia 3 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Arthonia austinii Willey |
| Identification made in | [no date] (2) |
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