| Name | Macromitrium nematosum E. B. Bartram |
| Authorship | E. B. Bartram |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Macromitrium |
| Citation | 1952 J. Wash. Acad. Sci. 42(6): 181 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Macromitrium nematosum E. B. Bartram |
| Identification made in | [no date] (1), 2013 (1) |