| Siphonoglossa greggii Greenm. & C.H. Thomps., 1914 |
| Siphonoglossa linearifolia Henrickson & Hilsenb., 1979 |
| Siphonoglossa longiflora (Torr.) A. Gray, 1878 |
| Siphonoglossa mexicana Hilsenb., 1989 |
| Siphonoglossa pilosella (Nees) Torr., 1859 |
| Siphonoglossa ramosa Oerst., 1855 |
| Siphonoglossa sessilis (Jacq.) D.N. Gibson, 1972 |
| Solenochasma Fenzl, 1844 |
| Solenochasma assurgens (L.) Fenzl, 1844 |
| Spathacanthus Baill., 1891 |
| Spathacanthus donnell-smithii Lindau ex Donn. Sm., 1895 |
| Spathacanthus hahnianus Baill., 1891 |
| Spathacanthus magdalenae Cast.-Campos, 2013 |
| Spathacanthus parviflorus Leonard, 1937 |
| Spathacanthus simplicifolius (Donn. Sm.) Lindau ex Bureau & K. Schum., 1897 |
| Staurogyne Wall., 1831 |
| Staurogyne agrestis Leonard, 1937 |
| Staurogyne miqueliana Kuntze, 1891 |
| Stenandrium Nees, 1836 |
| Stenandrium barbatum Torr. & A. Gray, 1855 |