| Name | Mendoncia guatemalensis Standley & Steyermark |
| Authorship | Standley & Steyermark |
| Rank | Species |
| Placed in | Mendoncia |
| Citation | 1947 Publ. Field Mus. Nat. Hist., Bot. Ser. 23(5): 245 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Mendoncia guatemalensis Standley & Steyermark |
| Identification made in | [no date] (1), 2015 (1) |