Name: Psilocybe ovoideocystidiata Guzmán & Gaines
Most Confident Observations:
Copyright © 2007 Shroomydan
Copyright © 2010 Hamilton
Copyright © 2009 Dave Fike
Version: 3
Previous Version 

First person to use this name on MO: Alan Rockefeller
Editors: Joe Cohen

Rank: Species
Status: Accepted
Name: Psilocybe ovoideocystidiata
Author: Guzmán & Gaines
Citation: Gaines, “New Species of Hallucinogenic ??Psilocybe (Fr.) P. Kumm. (Agaricomycetideae??) from the Eastern U.S.A.”, International Journal of Medicinal Mushrooms, Vol. 9, pp. 75–77 (2007)

Kingdom: Fungi
Phylum: Basidiomycota
Class: Agaricomycetes
Order: Agaricales
Family: Strophariaceae
Genus: Psilocybe

Notes on Taxonomy: [Edit]

Blueing species in section Stuntzii Guzmán of genus Psilocybe, with subrhomboid, thick-walled spores and caerulescent basidioma with annulus.

Brief Description:

Psilocybe ovoideocystidiata is a psilocybin mushroomin the section Stuntzae, having psilocybin and/or psilocin as main active compounds. It is closely related to P. subaeruginascens from Java, P. septentrionalis from Japan, and P. wayanadensis from India. This mushroom was first documented by Richard V. Gaines in Montgomery County in June 2003.

  • Cap: 1 — 4.5 cm across, convex to subumbonate, chestnut or orangish brown to yellowish brown, hygrophanous, glabrous, sub-viscid, translucent-striate near the margin, from slightly to highly undulated in maturity, with irregular yellowish, brownish, or bluish tones, sometimes white when dry. Flesh thick, pliant. Bruises blue where injured.
  • Gills: adnate attachment and range from whitish to rusty brown, lavender, or dark purple brown.
  • Spores: Dark purple brown, rhomboid to subrhomboid in face view, subellipsoid in side view, thick-walled, 8 × 6 µm .
  • Stipe: 1.5 — 9 cm by 1 — 7 mm, equal, somewhat subbulbous, hollow, base sometimes hypogeous, smooth at the top and often having small scales near the bottom, colored whitish with irregular yellowish, brownish, or bluish tones. The partial veil is variable, ranging from a thin cortina that leaves a barely perceptible annular zone, to a substantial membrane that leaves a fairly persistent annulus.
  • Taste: farinaceous
  • Odor: farinaceous
  • Microscopic features: Two types of cheilocystidia and pleurocystidia are present.
Descriptions: [Create]


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Created: 2008-04-22 02:51:50 CDT (-0400) by Alan Rockefeller (Alan Rockefeller)
Last modified: 2016-06-01 12:21:35 CDT (-0400) by Joe Cohen (Joseph D. Cohen)
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