Psilocybe wassoniorum

Psilocybe wassoniorum Guzmán & Pollock (1979)

Psilocybe fagicola R. Heim & Cailleux
Psilocybe fagicola var. mesocystidiata Guzmán (1978)
Psilocybe xalapensis Guzmán & López (1979)

Macroscopic feat.:
  • Cap/Pileus: 1-2 cm broad. Conic to subcampanulate, sometimes with a slight umbo, smooth, translucent-striate when moist, dark reddish brown to pale brown, fading in drying to an ochre yellow. Flesh thin, fragile, soon bruising bluish where injured.
  • Gills/Lamellae: Attachment adnexed, close, pale yellow brown when young, darkening with maturity and becoming dark purplish brown with paler edges.
  • Stem/Stipe: 30-40 mm long by 1-2 mm thick, equal to slightly enlarged, hollow, reddish brown to blackish brown, and covered with a sheath of white floccose fibrillose patches. Narrowing towards the base into a long pseudorhiza up to 10 mm long. Partial veil cortinate, fragile, and soon disappearing.

Microscopic feat.:
  • Basidio/Spores: Dark purplish brown in deposit, (6) 6.6-7.7 (8.5) by 4.0-5.5 µm, subellipsoid to subrhomboid in side view.
  • Basidia: 4-spored.
  • Pleurocistidia: Absent.
  • Cheilocystidia: 14-28 by 5-6.6 µm, ventricose near the base and sublageniform with a flexuous neck 1-2 µm thick, sometimes branched.

Habitat: Solitary or in small groups in open areas of subtropical deciduous forests. Originally found from Veracruz, Mexico, in June and July, at an elevation of 1700-1800 meters. Probably more widely distributed.

Comment: Active, but potency unknown. Originally found by the late Steven Pollock, and re-collected by Jim Jacobs, this relatively rare species is distinct for its solitary habit and long pseudorhiza. Named to honor the works of the Wassons, this species is not related to Psilocybe wassonii (=Psilocybe muliercula). See also Psilocybe herrerae, a similar species with a long pseudorhiza.

source - Paul Stamets "Psilocybin Mushrooms of the World"

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© psilosophy 2001-2022