Psilocybe plutonia

Psilocybe plutonia Berk. & M.A. Curtis Sacc.

Agaricus plutonia

Description: The word plutonia comes from the Latin words plutonian or plutonic. Perhaps in connection with the dark color of the mushroom.

Macroscopic feat.:
  • Cap/Pileus: 0.5-1.5 cm in diameter, conic to convex, with an acute umbo or papilla, not viscid, glabrous, slightly translucent-striate, silky white fibrils when young that fade in age, hygrophanous, lubricous, reddish brown to yellowish brown or clay color, becoming blackish. Flesh thin, brownish.
  • Gills/Lamellae: Adnexed, sometimes with a decurrent tooth, thin, light brown to dark brown, blackish in age, edges pallid.
  • Stem/Stipe: (1.8) 2.5-4 (5) cm long, 0.5-1.5 mm equal to slightly enlarged at the base, flexuous, hollow, dark brown or reddish brown, apex pruinose, zoned with appressed whitish fibrils. No annulus is formed by the cortinate veil.
  • Odor: None to slightly farinaceous. Taste unknown.

Microscopic feat.:
  • Basidio/Spores: Purple brown in deposit, rhomboid or subrhomboid in face view, (3.7) 4.5-6 (6.7) x 4.5-5.2 µm, thick-walled, with a broad truncate germ pore.
  • Basidia: 11-17 µm.
  • Pleurocistidia: 17-26 µm.
  • Cheilocystidia: 12-17 x 5-6 µm.

Habitat: Psilocybe plutonia may be found growing solitary or gregarious, from late June through February, on rotted wood or in soil with woody material, in tropical forests, from Brazil, Colombia, Venezuela and Cuba, often near sea level or in lower elevations, although widely distributed, it is not found often.

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© psilosophy 2001-2022