| Pelexia wendlandiana Kraenzl., 1892 |
| Peramium G. Salisb. ex J.M. Coult., 1894 |
| Peramium decipiens (Hook.) Piper, 1906 |
| Peramium giganteum (Douglas ex Hook.) J.M. Coult., 1894 |
| Peramium menziesii (Lindl.) Morong, 1894 |
| Peristeria Hook., 1831 |
| 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 |