| Name | Porothelium cinereum Patouillard |
| Authorship | Patouillard |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Porothelium |
| Citation | 1893 Bull. Soc. Mycol. France 9: 130 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Porothelium cinereum Patouillard |
| Identification made in | [no date] (2) |