| Name | Placidium lachneum (Acharius) B. de Lesdain |
| Authorship | (Acharius) B. de Lesdain |
| Rank | Species |
| Placed in | Placidium A. Massalongo |
| GUID | urn:lsid:indexfungorum.org:names:369350 |
| Citation | 1932 Ann. Cryptog. Exot. 5(1): 100 |
| Holdings | 82 Specimens held in the Harvard University Herbaria identified as Placidium lachneum (Acharius) B. de Lesdain |
| Identification made in | [no date] (82) |