| Name | Parmelia perforata var. hypotrypa (Nylander) Tuckerman |
| Authorship | (Nylander) Tuckerman |
| Rank | Variety |
| Placed in | Parmelia perforata (Wulfen) Acharius |
| Citation | 1882 Syn. N. Amer. Lich. 1: 53 |
| Holdings | 6 Specimens held in the Harvard University Herbaria identified as Parmelia perforata var. hypotrypa (Nylander) Tuckerman |
| Identification made in | [no date] (6) |
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