| Phoebe salvinii (Mez) Lundell, 1941 |
| Phoebe savannarum Standl. & Steyerm., 1944 |
| Phoebe saxchanalensis Lundell, 1942 |
| Phoebe siltepecana Lundell, 1946 |
| Phoebe subtriplinervia (Meisn.) Standl., |
| Phoebe tampicensis (Meisn.) Mez, 1889 |
| Phoebe trinervis Lundell, 1965 |
| Sassafridium Meisn., 1864 |
| Sassafridium macrophyllum Rose, 1895 |
| Sassafridium veraguense Meisn., 1864 |
| Umbellularia (Nees) Nutt., 1842 |
| Umbellularia californica (Hook. & Arn.) Nutt., 1842 |