| Name | Placynthium asperellum (Acharius) Trevisan |
| Authorship | (Acharius) Trevisan |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Placynthium |
| Citation | 1869 3-4: no. 98 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Placynthium asperellum (Acharius) Trevisan |
| Identification made in | [no date] (2) |