| Lactarius smithii Montoya & Bandala, 2004 |
| Lactarius strigosipes Montoya & Band.-Muñoz, 2007 |
| Lactarius subdulcis (Pers.) Gray, 1821 |
| Lactarius subdulcis var. oculatus Peck, 1903 |
| Lactarius sublacustris Hesler & A. H. Sm., 1979 |
| Lactarius subpalustris Hesler & A. H. Sm., 1979 |
| Lactarius subplinthogalus Coker, 1918 |
| Lactarius subrubescens A. H. Sm. & Hesler, 1962 |
| Lactarius subvellereus Peck, 1898 |
| Lactarius subvellereus var. subvellereus Peck, 1898 |
| Lactarius theiogalus (Bull.) Gray, 1821 |
| Lactarius theiogalus var. chrysorrheus (Fr.) Quél., 1886 |
| Lactarius torminosus (Schaeff.) Gray, 1821 |
| Lactarius trivialis (Fr.) Fr., 1838 |
| Lactarius uvidus (Fr.) Fr., 1838 |
| Lactarius vellereus (Fr.) Fr., 1838 |
| Lactarius veraecrucis Singer, 1973 |
| Lactarius vietus (Fr.) Fr., 1838 |
| Lactarius villosus Clem., 1896 |
| Lactarius vinaceorufescens A. H. Sm., 1960 |