Psilocybe cubensis

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cap is convex

hymenium is adnate

Psilocybe cubensis is a species of psychedelic mushroom whose principal active compounds are psilocybin and psilocin. Commonly called Boomers or Gold Caps, it belongs to the Strophariaceae family of fungi and was previously known as Stropharia cubensis.

Contents

Taxonomy and naming

The species was first described in 1906 as Stropharia cubensis by Franklin Sumner Earle in Cuba.[1] In 1907 it was identified as Naematoloma caerulescens in Tonkin by Narcisse Théophile Patouillard,[2] while in 1941 it was called Stropharia cyanescens by William Alphonso Murrill in Florida.[3] These synonyms were later assigned to the species Psilocybe cubensis.[4][5]

The name Psilocybe is derived from the Greek roots psilos (ψιλος) and kubê (κυβη) and translates as "bald head". Cubensis means "coming from Cuba", and refers to Cuba, the type locality published by Earle.

Description

  • Pileus: 2–8 cm, Conic to convex, becoming broadly convex to plane in age, may retain a slight umbo, margin even, reddish-cinnamon brown when young becoming golden brown in age, viscid when moist, hygrophanous, glabrous, sometimes with white universal veil remnants decorating the cap, more or less smooth. Flesh whitish, bruising blue in age or where injured.
  • Gills: Adnate to adnexed to sometimes seceding attachment, close, narrow to slightly wider towards the center, at first pallid to gray, becoming dark purplish to blackish in age, somewhat mottled, edges remaining whitish.
  • Spore Print: Blackish violet.
  • Stipe: 4–15 cm long, .5–1.5 cm thick, white to yellowish in age, hollow or somewhat stuffed, the well developed veil leaves a persistent white membranous annulus whose surface usually becomes concolorous with the gills because of falling spores, bruising blue or bluish-green when injured.
  • Taste: Farinaceous
  • Odor: Farinaceous
  • Microscopic features: Spores 11.5–17 x 8–11 µm, subellipsoid, basidia 4-spored but sometimes 2- or 3-, pleurocystidia and cheilocystidia present.[6]

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