| Name | Placynthium microphyllizum (Nylander ex Hasse) Hasse |
| Authorship | (Nylander ex Hasse) Hasse |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Placynthium |
| Citation | 1913 Contr. U.S. Natl. Herb. 17: 81 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Placynthium microphyllizum (Nylander ex Hasse) Hasse |
| Identification made in | 1902 (1) |