| Name | Micromitrium synoicum (James) Austin |
| Authorship | (James) Austin |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Micromitrium |
| Citation | 1874 Icon. Musc. Suppl. (Sullivant) 22 |
| Holdings | 9 Specimens held in the Harvard University Herbaria identified as Micromitrium synoicum (James) Austin |
| Identification made in | [no date] (8), 2006 (1) |