| Petalophyllaceae | |
Petalophyllum americanum
| C.H. Ford & Crand.-Stotl. | Novon 12(3): 335–336 | 2002 |
| Petalophyllaceae | |
Petalophyllum australe
| Colenso | Trans. & Proc. New Zealand Inst. 17: 261 | 1885 |
| Petalophyllaceae | |
Petalophyllum bolivianum
| Steph. | Biblioth. Bot. 87: 181. f. 92 | 1916 |
| Petalophyllaceae | |
Petalophyllum hodgsoniae
| C.H. Ford & Crand.-Stotl. | Novon 12: 336 | 2002 |
| Petalophyllaceae | |
Petalophyllum indicum
| Kashyap | J. Indian Bot. 7: 14 | 1928 |
| Petalophyllaceae | |
Petalophyllum lamellatum
| (Nees) Lindb. | Not. Sällsk. Fauna Fl. Fenn. Förh. 13: 390 | 1874 |
| Petalophyllaceae | |
Petalophyllum macrocalyx
| Colenso | Trans. & Proc. New Zealand Inst. 18: 249 | 1886 |
| Petalophyllaceae | |
Petalophyllum preissii
| Gottsche ex Lehm. | Nov. Stirp. Pug. 8: 30 | 1844 |
| Petalophyllaceae | ! |
Petalophyllum ralfsii
| (Wilson) Nees & Gottsche ex Lehm. | Nov. Stirp. Pug. 8: 30 | 1844 |