| Name | Arthonia polygramma var. denudata Nylander |
| Authorship | Nylander |
| Rank | Variety |
| Placed in | Arthonia polygramma Nylander |
| Citation | 1863 Acta Soc. Sci. Fenn. 7(2): 480 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Arthonia polygramma var. denudata Nylander |
| Identification made in | [no date] (2) |
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