| Peristeria barkeri Bateman, 1838 |
| Peristeria longiscapa A. Rich. & Galeotti, 1845 |
| Phaedrosanthus Neck. & Kuntze, 1903 |
| Phaedrosanthus ciliaris (L.) Kuntze, 1903 |
| Phaedrosanthus cochleatus (L.) Kuntze, 1903 |
| Phaedrosanthus nocturnus (Jacq.) Kuntze, 1903 |
| Phloeophila Hoehne & Schltr., 1926 |
| Phloeophila peperomioides (Ames) Garay, 1974 |
| Phragmipedium Rolfe, 1896 |
| Phragmipedium exstaminodium Castaño, Hágsater & E. Aguirre, 1984 |
| Phragmipedium exstaminodium subsp. exstaminodium Castaño, Hágsater & E. Aguirre, 1984 |
| Phragmipedium humboldtii (Warsz.) J.T. Atwood & Dressler, 1999 |
| Phragmipedium humboldtii var. exstaminodium (Castaño, Hágsater & E. Aguirre) P.J. Cribb & Purver, 2017 |
| Phragmipedium warscewiczii (Rchb. f.) Christenson, 2006 |
| Phragmipedium xerophyticum Soto Arenas, Salazar & Hágsater, 1990 |
| Phyllorchis Thouars, 1822 |
| Phyllorchis oerstedii (Rchb. f.) Kuntze, 1891 |
| Physogyne Garay, 1982 |
| Physogyne garayana R. González & Szlach., 1995 |
| Physogyne gonzalezii (L.O. Williams) Garay, 1982 |