| Name | Macromitrium carionis Müller Halle |
| Authorship | Müller Halle |
| Rank | Species |
| Placed in | Macromitrium |
| Citation | 1897 Bull. Herb. Boissier 5: 199 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Macromitrium carionis Müller Halle |
| Identification made in | 2024 (2) |