Dried specimen obtainable with permission
from el Herbario Nacional de Bolivia

Species Lists


Proposed Names

9% (5)
Recognized by sight: Growing on horse dung, verified as hallucinogen by locals
-3% (3)
Recognized by sight

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= Observer’s choice
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Yup, smaller spores, smaller pleurocystidia…
By: Debbie Viess (amanitarita)
2008-08-10 13:06:06 CDT (-0400)

…without a scope, who knows? Cubensis may be more likely…

Thanks for elucidating how you IDed this psilocybe. Without collecting them, it’s almost impossible to know the mushroom in its many guises; the downside of book-larnin’.

subcubensis or cubensis
By: J. Williams (jwilliams)
2008-08-09 16:09:29 CDT (-0400)

I did not realize Bolivia has subcubensis. I have no experience with it, but is the difference that it has smaller spores?

Anyway, the key things i used to identify are:
-becomes flat with central knob
-goldenbrown in center fading to white
-dark ring around perimeter of cap
-close gills
-stalk becoming larger near base
-looks as if it is growing from manure

No blueing is seen because it was not bruised. The partial veil does not bruise, it becomes blackish on one side after the spores deposit.

What other potent, dung-dwelling psilocybe sp. could it be?
By: Debbie Viess (amanitarita)
2008-08-09 13:01:17 CDT (-0400)

Subcubensis is also reported from Bolivia, and is apparently macroscopically identical (I am working with Stamet’s book here, not direct field experience).

More photos of younger material would be helpful, and I am bothered by the fragility and lack of obvious bluing of the shown partial veil. Did young mushrooms have the dramatic conic shape of cubensis? What are the clues that you are using for ID to species?