Psilocybe fagicola

Psilocybe fagicola R. Heim & Cailleux


synonyms:
Psilocybe fagicola var. mesocystidiata Guzmán (1978)
Psilocybe xalapensis Guzmán & López (1979)
Psilocybe wassoniorum Guzmán & Pollock (1979)

Macroscopic feat.:
  • Cap/Pileus: (5-) 10-15 (-25) mm in diameter, conic or convex to campanulate, subumbonate or umbonate, frequently with papilla (1-2 mm high, even and more or less glabrous, lubricous, striate at the margin when moist, sometimes somewhat wrinkled, strongly hygrophanous, dark reddish brown, brown chocolate or grayish brown, fading to brownish yellow, olivaceous, yellow or grayish green; turning blue when handled, sometimes becoming and remaining bluish black.
  • Gills/Lamellae: Adnexed, or somewhat sinuate, grayish to reddish brown, gray violaceous or dark, violaceous, somewhat spotted, with white edges.
  • Stem/Stipe: 40-60 x 0,7-2 mm, cylindric, equal or somewhat subbulbous, hollow, flexuous, cartilaginous, reddish brown but more paler at the apex; whitish mycelium present towards the base; covered with white floccose fibrils on the margin of the pileus, as small appendices.

Microscopic feat.:
  • Basidio/Spores: Dark purple-brown 5.5-6 x 4.9-5.5 µm, subrhomboid in face view. Subellipsoid in profile view, smooth, thick walled dark yellowish brown with a broad germ pore.
  • Basidia: 11-20 x 4,5-6,5 µm, 4 spored or 2 spored, hyaline, ventricose cylindric or cylindric pyriform.
  • Pleurocistidia: Scanty difficult to find when they are present they are 13-17 x 5-6 µm, subfusiform or sublageniform and hyaline.
  • Cheilocystidia: 6-15 µm long. Abundant hyaline, obclavate with long neck, 1-2 µm thick, sometimes with a hyaline viscous drop 5-10 µm in diameter at the apex.

Season: July to late August.

Habitat: Solitary to small groups. Restricted to the Fagus forests of Mexico. On humus rich in leaves, or sometimes between mosses. At 1850 m.

Blueing: Bruising blue when injured, may turn blackish blue on the pileus.

Notes: Known only from the type locality.

source - www.shroomery.org

Pictures at www.mushroomobserver.org

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© psilosophy 2001-2022