| Name | Physma byrsaeum (Afzelius ex Acharius) Tuckerman |
| Authorship | (Afzelius ex Acharius) Tuckerman |
| Rank | Species |
| Placed in | Physma A. Massalongo |
| Citation | 1882 Syn. N. Amer. Lich. 1: 115 |
| Holdings | 14 Specimens held in the Harvard University Herbaria identified as Physma byrsaeum (Afzelius ex Acharius) Tuckerman |
| Identification made in | 2006 (9), 2023 (5) |
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