| Moussonia papillosa Hanst., 1865 |
| Moussonia rupicola (Standl. & Steyerm.) Wiehler, 1975 |
| Moussonia septentrionalis (D.L. Denham) Wiehler, 1975 |
| Moussonia skutchii (C.V. Morton & D.N. Gibson) Wiehler, 1975 |
| Moussonia triflora Hanst., 1865 |
| Moussonia viminalis (Brandegee) Wiehler, 1975 |
| Naegelia Regel, 1847 |
| Naegelia cinnabarina Linden, 1857 |
| Naegelia zebrina Regel, 1891 |
| Napeantheae Wiehler, 1983 |
| Napeanthus Gardner, 1843 |
| Napeanthus bracteatus C.V. Morton, 1944 |
| Napeanthus repens Donn. Sm., 1901 |
| Nautilocalyx Linden ex Hanst., 1854 |
| Nautilocalyx panamensis (Seem.) Seem., 1854 |
| Nematanthus Schrad., 1821 |
| Neomortonia Wiehler, 1975 |
| Neomortonia nummularia (Hanst.) Wiehler, 1978 |
| Niphaea Lindl., 1841 |
| Niphaea mexicana C.V. Morton, 1936 |