Psilocybe

A genus of mushrooms (family Agaricaceae) containing many species with psychotropic or hallucinogenic properties, including Psilocybe mexicana, of which the fruiting bodies are a source of the hallucinogen, psilocybin. ... (05 Mar 2000) ...
Found on http://www.mondofacto.com/facts/dictionary?Psilocybe

Psilocybe

Psilocybe is a genus of small mushrooms growing worldwide. This genus is best known for its species with psychedelic or hallucinogenic properties, widely known as "magic mushrooms", though the majority of species do not contain hallucinogenic compounds. Psilocin and psilocybin are the hallucinogenic compounds responsible for the psychoactive eff..
Found on http://en.wikipedia.org/wiki/Psilocybe

Psilocybe

Type: Term Pronunciation: sī′lō-sī′bē Definitions: 1. A genus of mushrooms (family Agaricaceae) containing many species with psychotropic or hallucinogenic properties, including Psilocybe mexicana, of which the fruiting bodies are a source of the hallucinogen, psilocybin.
Found on http://www.medilexicon.com/medicaldictionary.php?t=73536
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