| Psilocybe laurae Guzmán, 1998 |
| Psilocybe luteonitens (Fr.) Park.-Rhodes, 1951 |
| Psilocybe mammillata (Murrill) A. H. Sm., 1948 |
| Psilocybe merdaria (Fr.) Ricken, 1912 |
| Psilocybe mesophylla Guzmán, Jacobs & Escalona, 2004 |
| Psilocybe mexicana R. Heim, 1957 |
| Psilocybe montana (Pers.) P. Kumm., 1871 |
| Psilocybe moseri Guzmán, 1995 |
| Psilocybe muliercula Singer & A. H. Sm., 1958 |
| Psilocybe naematoliformis Guzmán, 1979 |
| Psilocybe neorhombispora Guzmán, 2004 |
| Psilocybe neoxalapensis Guzmán, Ram.-Guill. & Halling, 2009 |
| Psilocybe novozoncuantlensis Guzmán, Ram.-Cruz, Ram.-Guill. & Gándara, 2006 |
| Psilocybe oaxacana Guzmán, Escalona & J. Q. Jacobs, 2004 |
| Psilocybe panaeoliformis Murrill, 1923 |
| Psilocybe pegleriana Guzmán, 2000 |
| Psilocybe pleurocystidiosa Guzmán, 1983 |
| Psilocybe pseudobullacea (Petch) Pegler, 1977 |
| Psilocybe rzedowskii Guzmán, 1978 |
| Psilocybe sanctorum Guzmán, 1983 |