| Name | Placidium michelii A. Massalongo |
| Authorship | A. Massalongo |
| Rank | Species |
| Placed in | Placidium A. Massalongo |
| GUID | urn:lsid:indexfungorum.org:names:400972 |
| Citation | 1856 Sched. Crit. [ Massalongo] 5: 100 |
| Holdings | 4 Specimens held in the Harvard University Herbaria identified as Placidium michelii A. Massalongo |
| Identification made in | [no date] (4) |