Of these, the most important group are the Agaricaceae, both from the point of view of the toxicologist and the epicure.    From Wordnik.com.  [Yahoo! Answers: Latest Questions] Reference

HALLUCINOGENIC MUSHROOMS Family: Agaricaceae Genus: Psilocybe Species: baeocystis (Potent Psilocybe) caerulipes (Blue Foot Psilocybe) coprophila (Dung-loving Psilocybe) cubensis (Common Large Psilocybe) cyanescens (Bluing Psilocybe) pelliculosa (Conifer Psilocybe) semilanceata (Liberty Cap) stunzii (Stunz's Blue Legs).    From Wordnik.com.  [Natural Highs Frequently Asked Questions by Vince Cavasin] Reference

European Fungus Flora: Agaricaceae.    From Wordnik.com.  [manybooks.net] Reference