"Allen magic mushroom", "Allen Psilocybe cubensis", "John Allen cubensis"

The John Allen Strain also commonly called the John W Allen magic mushroom, the Allen Psilocybe cubensis or the John Allen cubensis, is a famous magic mushroom from Thailand named after ethno-mycologist John W. Allen. Well renown, “Mushroom John” found this hallucinogenic specie in 1991 growing in rice paddy fields near the Muslim village of Ban Hua Thanon, on the island of Koh Samui.

The John Allen mushroom strain was the first bluing Psilocybe recorded from Thailand and the first cubensis species found outside of Mexico directly related to P. mexicana. All these features make the Allen Psilocybe cubensis an epic Thai strain.
Bearing a striking resemblance to P. semilanceata aka Liberty Cap, the John Allen magic mushroom hasn’t yet gained the name Thai Liberty Cap yet it is often referred to as the Thailand magic mushroom.

With no doubt, the Allen magic mushroom strain is as popular and well established in Thailand as P. semilanceata is in Europe. Called Koh SamuiThai Ban Hua Thai mushroom, or simply the John W Allen magic mushroom, there is a bit of ambiguity around which mushroom is actually the John Allen mushroom.

A specie from the Bay Area California already bares Allen’s name, Psilocybe allenii mushroom, while another, Panaeolus cambodginiensis (also found by Allen), originates from the famous Angkor Wat temple in Cambodia.
Probably because Psilocybe Samuensis is the species indigenous to Thailand found by Allen, it is most likely to be the specie consumers refer to it as the Allen Strain.

Psilocybe samuiensis, which was originally found in Kho Samui, in the village of Ban Hua Thanon, is now also known to grow in the province of Ranong in Thailand, and around the Angkor Wat temple in Siem Rap, where Panaeolus cambodginiensis grows.

The Kho Samui mushroom potency is known to be rather like that of its neighbouring relative Panaeolus cambodginiensis.

Consumers report an energetic, physical, euphoric voyage with an actively visual twist. The Allen Strain magic mushroom seems like one that will keep you company throughout these long nights of dancing on the beach.

So which magic mushroom strain is the real Allen Strain?
Feel welcome to share your thoughts in the review section; any hints to help us unravel the mystery behind theJohn Allen mushroom strain are welcome.

Regardless which it is, the John Allen Strain is a truly beloved strains for growers and consumers alike. Its growing pattern is often compared to the Floridian native P. tampanensis, in that it is resistant to contamination and a fast-colonizer. Needless to say, the Allen Strain is that beloved Ban Hua Thanon mushroom “super strain”.

It is undeniable that John W. Allen’s passion has not only made the Allen magic mushroom strain legendary, but also played a big part in preserving the continuity of the endangered tropical mycoflora.

His dedication makes us think that he can have as many strains bearing his name as he’d like; long live the Allen Psilocybe cubensis, the John Allen cubensis, the John Allen magic mushroom.

Today the Allen Strain is consumed and cultivated worldwide, particularly amongst knowledgeable users. The John Allen mushroom effects being rather strong, this Thai magic mushroom is probably a good candidate for microdosing to improve performance or wellbeing.



Visual Description

Cap: 0.7-1.5 cm broad. Convex to conic-convex to bell-shaped. Apex often with a nipple-shaped umbo. Surface translucent-striate near margin, viscid when moist, with a seperable gelatinous pellicle. Color is chestnut to reddish brown to straw when young, strongly hygrophanous, will change in drying to straw or brownish. Gills: Attachement adnate. Color is clay, then purplish brown to chocolate purple. Margins remain whitish. Stem: 40-65 mm long by 1-2 mm thick. Whitish to yellowish, covered with fibrillose from veil remnant. Equal to slightly thicker at base. Bruising bluish when bruised. Spore print: purple brown. Microscopic features: 10-13 by 6.5-8µ Taste and odor: said to be bitter


MODERATE 0.25% - 0.75% HIGH > 0.75% - 2% Psilocybin levels varied from 0.23% up to 0.90%. The psilocybin content was highest in the caps. Psilocybin was also found in the cultured non-bluing mycelia and varied from 0.24% to 0.32% dry weight. Analyses of both naturally occurring and in vitro cultivated fruit bodies of P. samuiensis revealed high concentrations of psilocybin and psilocin. Small amounts of baeocystin were also detected (Gartz, Allen, Merlin, 1994).

Habitat Origin

Found in Kho Samui in Thailand and around the temple of Angkor Wat in Cambodia. Believed to be more widely distributed throughout those regions. It grows scattered to gregarious in rice paddies, fruiting season is not known but suspected to be late June to August, the latter being the month it was originally discovered. First picked in a soil containing a mixture of sand and clay in the region in Ranong province Thailand.


Said to be crucial to creative thinking, to boost mood, focus and energy. Potentially through targeting serotonergic 5-HT2A receptors and promoting cognitive flexibility, it boosts creativity and problem-solving performance. It has been associated with anti-depressive, anti-anxiety and anti-stress benefits.