The genus Psilocybe consists of mushrooms containing the hallucinogen psilocybin. Its most notable members are:

• Stropharia cubensis, a.k.a. Psilocybe cubensis (native to Cuba; the most commonly consumed psychoactive psilocybe, due to relatively high psilocybin content and ease of cultivation)
• Psilocybe semilanceata (native to Western Europe)
• Psilocybe cyanescens (native to northwestern North America)
• Psilocybe mexicana

Other members include:

• Psilocybe acutipilea (Speg.)
• Psilocybe angustipleurocystidiata
• Psilocybe antioquensis
• Psilocybe aquamarina (Pegler) (a.k.a. Stropharia aquamarina Pegler)
• Psilocybe argentipes K. Yokoy.
• Psilocybe armandii Guzmán & S.H. Pollock
• Psilocybe aucklandii Guzmán, C.C. King & Bandala
• Psilocybe australiana Guzmán & Watling
• Psilocybe aztecorum
• Psilocybe aztecorum var. bonetii (a.k.a. P. bonetii Guzmán)
• Psilocybe azurescens
• Psilocybe baeocystis
• Psilocybe banderiliensis
• Psilocybe barrerae
• Psilocybe bohemica Sebek (a.k.a. P. coprinifacies s. Herink, non s. Krieglsteiner)
• Psilocybe brasiliensis Guzmán
• Psilocybe brunneocystidiata Guzmán & Horak
• Psilocybe caeruleoannulata Singer ex Guzmán
• Psilocybe caerulescens Murrill var. caerulescens (a.k.a. P. caerulescens var. albida R. Heim; P. caerulescens var. mazatecorum R. Heim; P. mazatecorum R. Heim; P. caerulescens var. nigripes R. Heim)
• Psilocybe caerulescens var. ombrophila (R. Heim) Guzmán (a.k.a. P. caerulescens var. mazatecorum P. ombrophila R. Heim; P. mixaeensis R. Heim)
• Psilocybe caerulipes (Peck) Sacc.
• Psilocybe carbonaria Singer
• Psilocybe chiapanensis Guzmán
• Psilocybe collybioides Singer & A.H. Sm.
• Psilocybe columbiana Guzmán
• Psilocybe coprinifacies (Rolland) Pouzar s. auct., non s. Herink, non s. Krieglsteiner (see discussion)
• Psilocybe cordispora R. Heim
• Psilocybe cubensis (Earle) Singer [a.k.a. Stropharia cubensis Earle; P. cubensis var. caerulescens (Murrill) Singer & A.H. Sm.; Stropharia subcyanescens Rick; S. cyanescens Murrill; S. caerulescens (Pat.) Singer]
• Psilocybe cyanescens Wakef. (non sensu Krieglsteiner)
• Psilocybe cyanofibrillosa
• Psilocybe dumontii
• Psilocybe eucalypta
• Psilocybe fagicola
• Psilocybe fagicola
• Psilocybe farinacea (a.k.a. P. albofimbriata Rick Singer)
• Psilocybe fimetaria (P.D. Orton) Watling [a.k.a. P. caesieannulata Singer; Stropharia fimetaria P.D. Orton]
• Psilocybe fuliginosa (Murrill) A.H. Sm.
• Psilocybe furtadoana Guzmán
• Psilocybe galindoi Guzmán (a.k.a. P. galindii Guzmán)
• Psilocybe goniospora (Berk. & Broome) Singer [a.k.a. P. lonchophora (Berk. Broome) Horak ex Guzmán]
• Psilocybe graveolens Peck
• Psilocybe guatapensis Guzmán, Saldarriaga, Pineda, García & Velázquez
• Psilocybe guilartensis Guzmán, Tapia & Nieves-Rivera
• Psilocybe heimii Guzmán
• Psilocybe heliconiae Guzmán, Saldarriaga, Pineda, García & Velázquez
• Psilocybe herrerae Guzmán
• Psilocybe hispanica Guzmán
• Psilocybe hoogshagenii R. Heim var. hoogshagenii (a.k.a. P. caerulipes var. gastonii Singer; P. zapotecorum R. Heim s. Singer)
• Psilocybe hoogshagenii R. Heim var. convexa Guzmán (a.k.a. P. semperviva R. Heim & Cailleux)
• Psilocybe inconspicua Guzmán & Horak
• Psilocybe indica Sathe & J.T. Daniel
• Psilocybe isabelae Guzmán
• Psilocybe jacobsii Guzmán
• Psilocybe jaliscana Guzmán
• Psilocybe kumaenorum R. Heim
• Psilocybe laurae Guzmán
• Psilocybe lazoi Singer [this is a doubtful neurotropic species, considered first by Guzmán (1983) as a synonym of P. zapotecorum, but Singer, 1986, claimed that this is a not bluing fungus independent of that of Guzmán, 1983]
• Psilocybe liniformans Guzmán & Bas var. liniformans
• Psilocybe liniformans var. americana Guzmán & Stamets
• Psilocybe mairei Singer [a.k.a. Hypholoma cyanescens Maire; Geophila cyanescens (Maire) Kühner & Romagn.; non Psilocybe cyanescens s. Krieglsteiner]
• Psilocybe makarorae Johnst. & Buchanan
• Psilocybe mammillata (Murrill) A.H. Sm.
• Psilocybe meridensis
• Psilocybe moseri Guzmán
• Psilocybe muliercula Singer & A.H. Sm. (a.k.a. P. wassonii R. Heim)
• Psilocybe natalensis Gartz, Reid, Smith & Eicker
• Psilocybe natarajanii Guzmán [a.k.a. P. aztecorum var. bonetii (Guzmán) Guzmán s. Natarajan & Raman]
• Psilocybe ochreata (Berk. & Broome) Horak ex Guzmán
• Psilocybe papuana Guzmán & Horak
• Psilocybe paulensis (Guzmán & Bononi) Guzmán (a.k.a. P. banderiliensis var. paulensis Guzmán & Bononi)
• Psilocybe pelliculosa (A.H. Sm.) Singer & A.H. Sm.
• Psilocybe pericystis Singer
• Psilocybe pintonii Guzmán
• Psilocybe pleurocystidiosa Guzmán
• Psilocybe plutonia (Berk. & M.A. Curtis) Sacc.
• Psilocybe portoricensis Guzmán, Tapia & Nieves-Rivera
• Psilocybe pseudoaztecorum Natarajan & Raman (a.k.a. P. aztecorum var. azte-corum sensu Natarajan & Raman; "P. subaztecorum" Guzmán, 1995)
• Psilocybe puberula Bas & Noordel.
• Psilocybe quebecensis Ola'h & R. Heim
• Psilocybe ramulosa (Guzmán & Bononi) Guzmán (a.k.a. P. zapotecorum var. ramulosum Guzmán & Bononi)
• Psilocybe rostrata (Petch) Pegler
• Psilocybe rzedowskii Guzmán
• Psilocybe samuiensis Guzmán, Bandala & Allen
• Psilocybe sanctorum Guzmán
• Psilocybe schultesii Guzmán & S.H. Pollock
• Psilocybe semilanceata (Fr. : Secr.) P. Kumm. [a.k.a. P. semilanceata var. caerulescens (Cooke) Sacc.: P. cookei Singer; non P. callosa (Fr. : Fr.) Quél., which is P. strictipes Singer & A.H. Sm.]
• Psilocybe septentrionalis (Guzmán) Guzmán (a.k.a. P. subaeriginascens Höhn. var. septentrionalis Guzmán)
• Psilocybe serbica Moser & Horak (non ss. Krieglsteiner)
• Psilocybe sierrae Singer (a.k.a. P. subfimetaria Guzmán & A.H. Sm.)
• Psilocybe silvatica (Peck) Singer & A.H. Sm.
• Psilocybe singerii Guzmán
• Psilocybe strictipes Singer & A.H. Sm. [a.k.a. P. callosa (Fr. : Fr.) Quél. s. Guzmán, 1983; P. semilanceata var. obtusa Bon; P. semilanceata var. microspora Singer ?]
• Psilocybe stuntzii Guzman & Ott
• Psilocybe subacutipilea Guzmán, Saldarriaga, Pineda, García & Velázquez
• Psilocybe subaeruginascens Höhn. var. subaeruginascens [a.k.a. P. aerugineo-maculans (Höhn.) Singer & A.H. Sm.]
• Psilocybe subaeruginosa Cleland
• Psilocybe subcaerulipes Hongo
• Psilocybe subcubensis Guzmán
• Psilocybe subtropicalis Guzmán
• Psilocybe subyungensis Guzmán
• Psilocybe subzapotecorum Guzmán
• Psilocybe tampanensis Guzmán & S.H. Pollock
• Psilocybe tasmaniana Guzmán & Watling
• Psilocybe uruguayensis Singer ex Guzmán
• Psilocybe uxpanapensis Guzmán
• Psilocybe venenata (S. Imai) Imaz. & Hongo (a.k.a. P. fasciata Hongo; Stropharia caerulescens S. Imai)
• Psilocybe veraecrucis Guzmán & Pérez-Ortiz
• Psilocybe villarrealii Guzmán
• Psilocybe wassoniorum Guzmán & S.H. Pollock
• Psilocybe weilii Guzmán, Tapia & Stamets
• Psilocybe weldenii Guzmán
• Psilocybe wrightii Guzmán
• Psilocybe xalapensis Guzmán & A. López
• Psilocybe yungensis Singer & A.H. Sm. (a.k.a. P. yungensis var. diconica Singer & A.H. Sm.; P. yungensis var. acutopapillata Singer & A.H. Sm.; P. isaurii Singer; P. acutissima R. Heim)
• Psilocybe zapotecorum R. Heim emend. Guzmán (a.k.a. P. aggericola Singer & A.H. Sm.)

See also

• Magic mushrooms

Books

• Psilocybin Mushrooms of the World (1996)
• Psilocybin Mushroom Handbook: Easy Indoor and Outdoor Cultivation (2004)