| Name | Grimmia lanuginosa (Hedwig) Müller Halle |
| Authorship | (Hedwig) Müller Halle |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Grimmia |
| Citation | 1849 Syn. Musc. Frond. 1: 806 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Grimmia lanuginosa (Hedwig) Müller Halle |
| Identification made in | [no date] (1) |