| Name | Pteroceras unguiculatum H. A. Pedersen |
| Authorship | H. A. Pedersen |
| Rank | Species |
| Placed in | Pteroceras Hasselt ex Hasskarl |
| Citation | 1992 Nord. J. Bot. 12: 388. |
| Holdings | 44 Specimens held in the Harvard University Herbaria identified as Pteroceras unguiculatum H. A. Pedersen |
| Identification made in | [no date] (44) |