Name: Psilocybe cyanofibrillosa Guzmán & Stamets
Most Confident Observations:
Copyright © 2013 Cat C. (pondellynelf)
Copyright © 2012 NeoSporen
Copyright © 2008 Ganymede
Copyright © 2014 Caleb Brown (Caleb Brown)
Version: 4
Previous Version 

First person to use this name on MO: Alan Rockefeller
Editors: Erin Page Blanchard, Herbert Baker


Rank: Species

Status: Accepted

Name: Psilocybe cyanofibrillosa

Author: Guzmán & Stamets

Citation: Stamets PE, Beug MW, Bigwood JE, Guzmán G. (1980). A new species and new variety of Psilocybe from North America. Mycotaxon 11(2): 476-484.

Misspellings: Psilocybe cyanofbrillosa


Domain: Eukarya

Kingdom: Fungi

Phylum: Basidiomycota

Class: Agaricomycetes

Order: Agaricales

Family: Hymenogastraceae

Genus: Psilocybe

Brief Description:

Pileus: 1.4 — 3.5 cm in diameter, conic to convex to broadly convex becoming flat in age, not usually umbonate, deep chestnut brown, hygrophanous fading to yellowish brown or grayish white when dry. Surface viscid when moist from separable gelatinous pellicle.

Gills: Adnate to adnexed to slightly subdecurrent in age, light grayish becoming purplish brown with age, edges remaining whitish.

Spores: Purplish brown in deposit. Subellipsoid in shape, (9)9.5 — 11(12) x (5.5)6 — 6.6(7) [[µm]].

Stipe: 3 — 8 cm long x 0.5 cm thick, equal to enlarging near the base, striate, pallid to yellow brown with fine fibrils that stain blue when handled. Partial veil with a cortina, sometimes leaving a fragile annular zone. White rhizomorphs at the base, flesh brownish bruising bluish to indigo-black.

Taste: Farinaceous.

Odor: Farinaceous.

Microscopic features: Pleurocystidia absent, basidia 4-spored, rarely 2-spored, cheilocystidia fusiform to lanceolate 22 — 33 × 5.5 — 7 µm, with an elongated, forking neck, 1 — 1.5 µm thick at apex.

Descriptions: [Create]


Add Comment
The Genus Psilocybe
By: Image Sharer (image sharer)
2019-09-20 17:06:20 CDT (-0400)

See page 350 here:

By: Erin Page Blanchard (CureCat)
2011-11-02 21:59:10 CDT (-0400)

It was an accident that occurred as a result Danny synonymizing them. I am going to see if I can fix it…

You can’t
By: Noah Siegel (Noah)
2011-11-02 21:50:42 CDT (-0400)

deprecated Psilocybe cyanofibrillosa, which is a legit species…

Number of users interested in this name: 1

Created: 2007-04-30 02:07:13 CDT (-0400) by Alan Rockefeller (Alan Rockefeller)
Last modified: 2019-09-20 17:06:21 CDT (-0400) by Erin Page Blanchard (CureCat)
Viewed: 3525 times, last viewed: 2020-04-06 08:44:59 CDT (-0400)
Show Log