| Name | Macromitrium laevigatum Thériot |
| Authorship | Thériot |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Macromitrium |
| Citation | 1910 Diagn. Esp. Var. Mous. 8e Article 5 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Macromitrium laevigatum Thériot |
| Identification made in | [no date] (1) |