| Macroscepis diademata (Ker Gawl.) W.D. Stevens, 1983 |
| Macroscepis obovata Kunth, 1819 |
| Macroscepis pleistantha Donn. Sm., 1895 |
| Macroscepis rotata Decne., 1844 |
| Macroscepis sinalobolana L.O. Alvarado, Pío-León & M.G. Chávez, 2022 |
| Macroscepis stevensii Morillo, 2012 |
| Macroscepis yucatanensis Morillo, 2012 |
| Macrosiphonia Müll. Arg., 1860 |
| Macrosiphonia brachysiphon (Torr.) A. Gray, 1878 |
| Macrosiphonia hesperia I.M. Johnst., 1924 |
| Macrosiphonia hypoleuca (Benth.) Müll. Arg., 1860 |
| Macrosiphonia lanuginosa (M. Martens & Galeotti) Hemsl., 1881 |
| Macrosiphonia woodsoniana Standl., 1940 |
| Mandevilla Lindl., 1840 |
| Mandevilla acutiloba (A. DC.) Woodson, 1932 |
| Mandevilla andrieuxii (Müll. Arg.) Hemsl., 1881 |
| Mandevilla apocynifolia (A. Gray) Woodson, 1932 |
| Mandevilla brachysiphon (Torr.) Pichon, 1948 |
| Mandevilla convolvulacea (A. DC.) Hemsl., 1881 |
| Mandevilla donnell-smithii Woodson, 1932 |