| Mussaenda erythrophylla Schumach. & Thonn., 1827 |
| Mussaenda rotundifolia Sessé & Moc., 1894 |
| Mussaenda spinosa Jacq., 1763 |
| Mussaenda tetracantha Cav., 1799 |
| Mussaendeae Hook. f., 1873 |
| Myrstiphyllum P. Browne, 1756 |
| Myrstiphyllum horizontalis (Sw.) Millsp., 1900 |
| Naucleeae Kostel., 1833 |
| Neomartensia Borhidi & Lozada-Pérez, 2010 |
| Neomartensia breviflora (Borhidi & Salas-Mor.) Borhidi & Lozada-Pérez, 2010 |
| Neomartensia macdougallii (Lorence) Borhidi & Lozada-Pérez, 2010 |
| Neomartensia micrantha (Borhidi) Borhidi & Lozada-Pérez, 2010 |
| Nernstia Urb., 1923 |
| Nernstia mexicana (Zucc. & Mart. ex DC.) Urb., 1923 |
| Nertera Banks & Sol. ex Gaertn., 1788 |
| Nertera alsinoides Cham. & Schltdl., 1831 |
| Nertera depressa Banks & Sol. ex Gaertn., 1788 |
| Nertera granadensis (Mutis ex L. f.) Druce, 1917 |
| Nertera repens Ruiz & Pav., 1798 |
| Nonatelia Aubl., 1775 |