| Ochlochaete Thwaites, 1849 |
| Ochlochaete dendroides P. Crouan & H. Crouan, 1852 |
| Percursaria Bory, 1823 |
| Percursaria dawsonii Hollenberg & I.A. Abbott, 1968 |
| Percursaria percursa (C. Agardh) Rosenv., 1893 |
| Phycoseris Kütz., 1843 |
| Phycoseris lobata Kütz., 1847 |
| Ulva L., 1753 |
| Ulva acanthophora (Kütz.) Hayden, Blomster, Maggs, P.C. Silva, Stanhope & Waaland, 2003 |
| Ulva angusta Setch. & N.L. Gardner, 1920 |
| Ulva australis Aresch., 1854 |
| Ulva bartayresiana (J.V. Lamour.) Martius, 1832 |
| Ulva californica Wille, 1899 |
| Ulva cavernosa Forssk., 1775 |
| Ulva chaetomorphoides (Børgesen) Hayden, Blomster, Maggs, P.C. Silva, Stanhope & Waaland, 2003 |
| Ulva clathrata (Roth) C. Agardh, 1811 |
| Ulva compressa L., 1753 |
| Ulva costata (M. Howe) Hollenberg, 1971 |
| Ulva dactylifera Setch. & N.L. Gardner, 1920 |
| Ulva decorticata Woodward, 1797 |