Observation 153845: Psilocybe allenii Borov., Rockefeller & P.G. Werner

When: 2013-11-27

Collection location: Trinidad, California, USA [Click for map]

Who: nicksodaro

No specimen available

Stained/bruised blue, hygrophanous cap, hollow stipe, purple brown spores, and large relative to P. cyanescens. Growing on woodchips and dead grass, under pompass grass. I originally found them growing out of grass from underneath rocks. The area was disturbed before the photo taken by the removal of invasive scotch broom growing nearby that provided shade for the mushrooms that grew around these last year.


Hollow stipe and large compared to a medium sized P. cyanescens below.
Second flush
Second flush
Second flush
Second flush

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Eye3 = Observer’s choice
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Psilocybe allenii
By: nicksodaro
2013-11-28 13:40:54 PST (-0800)

No annulus on the silky white stipe and rather large for a Stuntzii. No pith inside of the hollow stem. Context of cap does not seem “relatively thin.” Strong bruising blue and forming deep blue to black pits where it is rotting…Also have had them ID’d in the past by a reputable source.

Yep, P. allenii, probably
By: Peter G Werner (pgwerner)
2013-11-28 11:42:08 PST (-0800)

I concur with the ID, with a vote of “promising”. My slight reluctance to fully commit to the identification is based on the fact that they’re a bit on the old side, and I don’t have any way of looking at the spores or cystidia, and I’ve known rather old P. stuntzii to look remarkably similar, and that’s a species that’s somewhat more common in the Humboldt area than it is southward. Still, I entered the confidence in P. stuntzii as “doubtful” since I don’t think that’s the most likely candidate.

Created: 2013-11-28 00:04:47 PST (-0800)
Last modified: 2013-11-28 18:28:24 PST (-0800)
Viewed: 144 times, last viewed: 2018-11-10 10:27:11 PST (-0800)
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