Psilocybe liniformans var. americana

Taxobox
name = "Psilocybe liniformans var. americana"


regnum = Fungi
divisio = Basidiomycota
classis = Agaricomycetes
ordo = Agaricales
familia = Strophariaceae
genus = Psilocybe
species = "liniformans var. americana"
binomial = "Psilocybe liniformans var. americana"
binomial_authority = Stamets
synonyms =
range_

range_map_width = 240px
range_map_caption = Range of "Psilocybe liniformans var. americana"mycomorphbox
name = Psilocybe liniformans var. americana
whichGills = adnexed
whichGills2 =
capShape = convex
capShape2 =
hymeniumType=gills
stipeCharacter=bare
ecologicalType=saprotrophic
sporePrintColor=purple-brown
howEdible=psychoactive

Psilocybe liniformans var. americana, is a psilocybin mushroom of the Agaricales family, in the section Semilanceatae, having psilocybin as its main active compound.

Description

*Cap: 1 - 2.5 cm Convex to nearly plane, sometimes broadly umbonate but not papillate, smooth, dull grayish brown to slightly olivacous, more reddish at the center, hygrophanous, becoming straw brown when dry with the center remaining more brownish. Sometimes with a bluish green tone, or olivacous tones at the margin when young.
*Gills: Adnexed, somewhat distant, broad, dark chocolate brown to purplish brown with age.
*Spores: Dark purple brown, ellipsoid, 13 - 14.5 micrometers by 7.5 - 8.8(10)
*Stipe: 1.4 - 3.0 cm by 1 -2 mm equal, enlarging at the base. Whitish to very pale brownish, darker below, bruising blue, finely fibrillose in the lower portion. Partial veil is thin and soon disappears.
*Taste: Weak to somewhat farinaceous.
*Odor: Strongly aromatic to farinaceous.
*Microscopic features: Basidia 4-spored, Pluerocystidia absent. Cheilocystidia 22 - 33 by 5.5 - 9 micrometers, lageniform with an extended neck.

Habitat and formation

Psilocybe liniformans var. americana is found scattered to gregarious in rich pastures or grasslands, fruiting from summer to early winter, has been collected in Washington, Oregon, and Michigan, has also been reported from Chili where it fruits in the spring. This mushroom is very close to the type variety, the main difference is the lack of a gelatinous layer on the edge of the lamellae and the terricolous habitat.