| Name | Mesechites acuminatus (Ruiz & Pavon) Müller Arg. |
| Authorship | (Ruiz & Pavon) Müller Arg. |
| Rank | Species |
| Placed in | Mesechites Müller Argoviensis |
| Citation | 1859 Linnaea 30(4): 446 |
| Holdings | 6 Specimens held in the Harvard University Herbaria identified as Mesechites acuminatus (Ruiz & Pavon) Müller Arg. |
| Identification made in | [no date] (4), 1932 (1), 1984 (1) |