| Spathiphyllum wilfridoanum Díaz Jim., 2022 |
| Spirodela Schleid., 1839 |
| Spirodela intermedia W. Koch, 1932 |
| Spirodela polyrhiza (L.) Schleid., 1839 |
| Staurogeton Rchb., 1841 |
| Staurogeton trisulcus (L.) Schur, 1853 |
| Stenospermation Schott, 1858 |
| Stenospermation marantifolium Hemsl., 1885 |
| Stenospermation robustum Engl., 1905 |
| Syngonium Schott, 1829 |
| Syngonium affine Schott, 1856 |
| Syngonium albolineatum W. Bull, 1871 |
| Syngonium amazonicum Engl., 1920 |
| Syngonium angustatum Schott, 1858 |
| Syngonium auritum (L.) Schott, 1829 |
| Syngonium auritum var. neglectum (Schott) Engl., 1879 |
| Syngonium chiapense Matuda, 1950 |
| Syngonium decipiens Schott, 1856 |
| Syngonium donnell-smithii Engl., 1905 |
| Syngonium gracile (Miq.) Schott, 1856 |