Psilocybe samuiensis

Psilocybe samuiensis

Psilocybe samuiensis is a species of psilocybin mushroom in the family Hymenogastraceae. This species is known for its psychoactive properties, which are primarily due to the presence of psilocybin and psilocin. It was first described in 1991 by E. Borovicka, A. Gartz, and J. Allen.

Description

Psilocybe samuiensis has a distinctive appearance that makes it recognizable among other species of psilocybin mushrooms. The cap is typically 1-2 cm in diameter, conical to convex in shape, and often has a slight umbo. The color of the cap ranges from light brown to yellowish-brown, often with a darker center. The surface of the cap is smooth and can become sticky when moist.

The gills are adnate to adnexed, close, and initially pale brown, becoming darker as the spores mature. The stipe is slender, 3-6 cm long, and 1-2 mm thick, with a whitish to yellowish coloration. The stipe often has a slight blue bruising when handled, which is a characteristic feature of many psilocybin mushrooms.

The spore print is dark purplish-brown. Microscopically, the spores are ellipsoid, smooth, and measure approximately 10-13 x 6-8 µm.

Habitat and Distribution

Psilocybe samuiensis is primarily found in tropical and subtropical regions. It was first discovered on the island of Koh Samui in Thailand, which is reflected in its name. The species typically grows in rice paddies, manure-enriched soil, and other nutrient-rich substrates. It is often found during the rainy season when the conditions are humid and warm.

Psychoactive Properties

Psilocybe samuiensis contains the psychoactive compounds psilocybin and psilocin, which are responsible for its hallucinogenic effects. These compounds interact with the serotonin receptors in the brain, leading to altered perceptions, mood changes, and visual and auditory hallucinations. The intensity and duration of the effects can vary depending on the dosage, individual sensitivity, and environmental factors.

Legal Status

The legal status of Psilocybe samuiensis varies by country. In many places, the possession, sale, and use of psilocybin mushrooms are illegal due to their psychoactive properties. However, some countries and regions have decriminalized or legalized the use of these mushrooms for medical or recreational purposes. It is important to be aware of the local laws and regulations regarding psilocybin mushrooms.

See Also

• Psilocybe cubensis
• Psilocybe semilanceata
• Psychedelic mushrooms
• Entheogen
• Psychedelic therapy