How are those species cultivated?

All of the woodloving species follow essentially the same cultivation requirements. Basically, a grain spawn is prepared, pasteurized or sterilized woodchips are inoculated with this grain spawn indoors, and then the colonized woodchips are used to inoculate an outdoor woodchips bed located in a shady spot in spring. The bed is kept moist throughout the summer, and in september-december a fruiting occurs.

The most accumulated info on cultivation of Psilocybe azurescens (which can be used for all the woodloving species) can be found here:
http://www.erowid.org/plants/mushrooms/mushrooms_cultivation_az1.shtml

Other links of interest include:
Shroomery - Growing Caramel-Cap Woodlovers
P. azurescens outdoor cultivation
http://utenti.lycos.it/azurescens/
http://leda.lycaeum.org/Taxonomy/Psilocybe_azurescens.110.shtml
http://www.museocivico.rovereto.tn.it/pubblicazioni/Annale12/art11_gartz.pdf
http://leda.lycaeum.org/Documents/Cultivation_and_Analysis_of_Psilocybe_Species_and_an_Investigation_of_Galerina_steglichi.10423.shtml