| Mexacanthus T.F. Daniel, 1981 |
| Mexacanthus mcvaughii T.F. Daniel, 1981 |
| Meyenia Nees, 1832 |
| Meyenia erecta Benth., 1849 |
| Mirandea Rzed., 1959 |
| Mirandea andradenia T.F. Daniel, 1986 |
| Mirandea grisea Rzed., 1959 |
| Mirandea huastecensis T.F. Daniel, 1979 |
| Mirandea hyssopus (Nees) T.F. Daniel, 2003 |
| Mirandea nutans (Nees) T.F. Daniel, 2003 |
| Mirandea sylvatica Acosta, 1985 |
| Monechma Hochst., 1841 |
| Monechma incanum C.B. Clarke, 1901 |
| Nelsonia R. Br., 1810 |
| Nelsonioideae Pfeiff., 1871 |
| Neohallia Hemsl., 1882 |
| Neohallia borrerae Hemsl., 1882 |
| Neolindenia Baill., 1890 |
| Neolindenia mexicana Baill., 1890 |
| Odontonema Nees, 1842 |