| Name | Smittium gravimetallum Lichtwardt, Ferrington & Hayford |
| Authorship | Lichtwardt, Ferrington & Hayford |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Smittium R. A. Poisson |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Smittium gravimetallum Lichtwardt, Ferrington & Hayford |
| Identification made in | [no date] (1) |