| Aquifoliaceae Bercht. & J. Presl, 1825 |
| Ilex L., 1753 |
| Ilex ambigua Torr., 1843 |
| Ilex anodonta Standl. & Steyerm., 1940 |
| Ilex belizensis Lundell, 1937 |
| Ilex betschleriana Göpp., 1852 |
| Ilex brandegeeana Loes., 1901 |
| Ilex californica Brandegee, 1894 |
| Ilex cassine L., 1753 |
| Ilex cassine f. glabra Loes., 1892 |
| Ilex cassine f. hirtella Loes., 1892 |
| Ilex cassine var. mexicana Loes., 1901 |
| Ilex condensata Turcz., 1859 |
| Ilex costaricensis Donn. Sm., 1914 |
| Ilex decidua Walter, 1788 |
| Ilex discolor Hemsl., 1878 |
| Ilex discolor var. discolor Hemsl., 1878 |
| Ilex discolor var. tolucana (Hemsl.) Edwin ex T.R. Dudley, 1997 |
| Ilex dugesii Fernald, 1895 |
| Ilex gracilipes I.M. Johnst., 1938 |