| Name | Mesadenella petenensis (L. O. Williams) Garay |
| Authorship | (L. O. Williams) Garay |
| Rank | Species |
| Placed in | Mesadenella |
| Citation | 1980 Bot. Mus. Leafl. 28(4): 335. |
| Holdings | 13 Specimens held in the Harvard University Herbaria identified as Mesadenella petenensis (L. O. Williams) Garay |
| Identification made in | [no date] (12), 2017 (1) |