Psilocybe fimetaria
Encyclopedia
Psilocybe fimetaria, is a psilocybin mushroom
Psilocybin mushroom
Psilocybin mushrooms are fungi that contain the psychoactive compounds psilocybin and psilocin. There are multiple colloquial terms for psilocybin mushrooms, the most common being shrooms or magic mushrooms....

, having psilocybin
Psilocybin
Psilocybin is a naturally occurring psychedelic prodrug, with mind-altering effects similar to those of LSD and mescaline, after it is converted to psilocin. The effects can include altered thinking processes, perceptual distortions, an altered sense of time, and spiritual experiences, as well as...

 and psilocin
Psilocin
Psilocin , an aromatic compound, sometimes also spelled psilocine, psilocyn, or psilotsin, is a psychedelic mushroom alkaloid. It is found in most psychedelic mushrooms together with its phosphorylated counterpart psilocybin...

 as main active compounds.

Description

  • Cap: 1.5 — 3.5 cm in diameter, convex to plano-convex
    Plano-convex
    Plano-convex may refer to:*Plano-convex lenses, in optics; see Lens #Types_of_simple_lenses*The plano-convex type of mudbrick, used by the ancient Sumerians...

    , becoming subcampanulate to broadly convex in age, with or without a sharp papilla. Surface even to translucent-striate near the margin, viscid when moist from a thick separable gelatinous pellicle
    Pellicle
    Pellicle may refer to:*Pellicle , a thin layer supporting the cell membrane in various protozoa*Pellicle mirror, a thin plastic membrane which may be used as a beam splitter or protective cover in optical systems...

    . Pale reddish brown to honey to ochraceous, hygrophanous
    Hygrophanous
    The adjective hygrophanous refers to the color change of mushroom tissue as it loses or absorbs water, which causes the pileipellis to become more transparent when wet and opaque when dry....

    , fading in drying to yellowish olive to ochraceous buff. Flesh whitish to honey colored, bruising bluish where injured.
  • Gills: Adnate
    Adnation
    Adnation in plants is the "union of unlike parts; organically united or fused with another dissimilar part, e.g. an ovary to a calyx tube, or stamens to petals". This is in contrast to connation, the fusion of similar organs....

    -emarginate, subdistant, ventricose
    Ventricose
    In mycology, Ventricose is a condition in which the cystidia, lamella or stipe of a mushroom is swollen in the middle....

    , whitish clay at first, eventually dark reddish brown with olivaceous hue, white fimbriate.
  • Spore Print: Dark purple-brown, (9.5)12.5 — 15(16) x 6.5 — 9.5 µm, ovoid in front view, ellipsoid in side view, thick walled with a broad germ pore.
  • Stem: 2 — 9 cm long by (0.5)2 — 4 mm thick. Cylindrical, flexuous, equal to slightly swollen at the base. Whitish at first, soon discoloring yellow to yellow brown from handling,reddish brown or honey brown in age, sometimes with distinctive blue tones at the base. Surface covered with whitish fibrils towards the apex, with a narrow annulus
    Annulus (mycology)
    An annulus is the ring like structure sometimes found on the stipe of some species of mushrooms. The annulus represents the remaining part of the partial veil, after it has ruptured to expose the gills or other spore-producing surface. An annulus may be thick and membranous, or it may be cobweb-like...

     that develops from a thickly cortinate partial veil.
  • Odor: Farinaceous
  • Taste: Farinaceous
  • Microscopic features: Basidia 4-spored. Pleurocystidia absent. Cheilocystidia (15)20 — 30(35) by (4)6 — 8(9) µm, ventricose
    Ventricose
    In mycology, Ventricose is a condition in which the cystidia, lamella or stipe of a mushroom is swollen in the middle....

    -fusiform or lageniform with a narrow neck, often flexuous, 4 — 15 by 0.5 — 1.5 µm, occasionally branched.

Habitat and distribution

Psilocybe fimetaria is found growing solitary to gregariously on horse or cow dung, in grassy areas or in rich soils, and often fruits in large rings, from September to November, known from Canada
Canada
Canada is a North American country consisting of ten provinces and three territories. Located in the northern part of the continent, it extends from the Atlantic Ocean in the east to the Pacific Ocean in the west, and northward into the Arctic Ocean...

 (British Columbia
British Columbia
British Columbia is the westernmost of Canada's provinces and is known for its natural beauty, as reflected in its Latin motto, Splendor sine occasu . Its name was chosen by Queen Victoria in 1858...

 and New Brunswick
New Brunswick
New Brunswick is one of Canada's three Maritime provinces and is the only province in the federation that is constitutionally bilingual . The provincial capital is Fredericton and Saint John is the most populous city. Greater Moncton is the largest Census Metropolitan Area...

), the Pacific Northwest
Pacific Northwest
The Pacific Northwest is a region in northwestern North America, bounded by the Pacific Ocean to the west and, loosely, by the Rocky Mountains on the east. Definitions of the region vary and there is no commonly agreed upon boundary, even among Pacific Northwesterners. A common concept of the...

 (Washington, Oregon
Oregon
Oregon is a state in the Pacific Northwest region of the United States. It is located on the Pacific coast, with Washington to the north, California to the south, Nevada on the southeast and Idaho to the east. The Columbia and Snake rivers delineate much of Oregon's northern and eastern...

, and Idaho
Idaho
Idaho is a state in the Rocky Mountain area of the United States. The state's largest city and capital is Boise. Residents are called "Idahoans". Idaho was admitted to the Union on July 3, 1890, as the 43rd state....

), Chile
Chile
Chile ,officially the Republic of Chile , is a country in South America occupying a long, narrow coastal strip between the Andes mountains to the east and the Pacific Ocean to the west. It borders Peru to the north, Bolivia to the northeast, Argentina to the east, and the Drake Passage in the far...

, Great Britain
Great Britain
Great Britain or Britain is an island situated to the northwest of Continental Europe. It is the ninth largest island in the world, and the largest European island, as well as the largest of the British Isles...

, and Europe
Europe
Europe is, by convention, one of the world's seven continents. Comprising the westernmost peninsula of Eurasia, Europe is generally 'divided' from Asia to its east by the watershed divides of the Ural and Caucasus Mountains, the Ural River, the Caspian and Black Seas, and the waterways connecting...

. Widely distributed but not very common.

External links

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