| Psilocybe heimii Guzmán, 1978 |
| Psilocybe herrerae Guzmán, 1978 |
| Psilocybe hoogshagenii R. Heim, 1959 |
| Psilocybe hoogshagenii var. convexa Guzmán, 1983 |
| Psilocybe hoogshagenii var. hoogshagenii R. Heim, 1958 |
| Psilocybe inquilina (Fr.) Bres., 1931 |
| Psilocybe isabelae Guzmán, 1999 |
| Psilocybe jacobsii Guzmán, 1983 |
| Psilocybe josecastilloi Guzmán, 2005 |
| 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 |