| Name | Pertusaria leioplaca f. bispora Farlow ex A. Stewart |
| Authorship | Farlow ex A. Stewart |
| Rank | Forma |
| Placed in | Pertusaria leioplaca de Candolle |
| Citation | 1912 Proc. Calif. Acad. Sci. Ser. 4, 1: 438 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Pertusaria leioplaca f. bispora Farlow ex A. Stewart |
| Identification made in | [no date] (2) |
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