| Markea leucantha Donn. Sm., 1901 |
| Markea megalandra (Dunal) D'Arcy, 1973 |
| Markea uniflora Lundell, 1939 |
| Melananthus Walp., 1850 |
| Melananthus guatemalensis (Benth. ex Hemsl.) Soler., 1891 |
| Melongena (Mill.) Dunal, 1813 |
| Merinthopodium Donn. Sm., 1897 |
| Merinthopodium neuranthum (Hemsl.) Donn. Sm., 1897 |
| Meyenia Schltdl., 1833 |
| Meyenia corymbosa Schltdl., 1833 |
| Meyenia fasciculata Schltdl., 1833 |
| Micracantha Dunal, 1813 |
| Mycrophysalis Rydb., 1896 |
| Nectouxia Kunth, 1818 |
| Nectouxia bella Miers, 1849 |
| Nectouxia formosa Kunth, 1818 |
| Nicandra Adans., 1763 |
| Nicandra physalodes (L.) Gaertn., 1791 |
| Nicandreae Wettst., 1891 |
| Nicotiana L., 1753 |