Observation 220378: Psilocybe (Fr.) P. Kumm.

When: 2015-10-22

Collection location: Cascades along Highway 12, Washington, USA [Click for map]

Who: Drew Henderson (Hendre17)

Specimen available

NOTE: Purple gills in image 3208.

Fruiting in same substrate as last season in grass-near hay and manure piles.

See observation link below for larger flush here last yr.


Species Lists


©Drew Henderson 2015
©Drew Henderson 2015
©Drew Henderson 2015
©Drew Henderson 2015

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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Will do Alan-
By: Drew Henderson (Hendre17)
2015-10-28 18:28:17 PDT (-0700)

Thanks for the species suggestions too. I remember reading up on the large un described species from Stamets’ book and thought about them when I was collecting the few I got during this outing. Lots of hyphae on stem bases, almost akin to the base of Gymnopus dryophilus. Very deep bluing reaction immediately, especially young specimens. White band evident on cap margins of young specimens. Beneath hay, not from dung, but not in grass necessarily either. Came back for 2nd season, even with drought this summer. They must occur somewhat with dung but not on it, at mid to montane elevation in conifer forests. To make things fun for descriptions, They were still in one of our small bags in the car today. We’ll see if a spore collection is still in the works and at all possible for microscopy. I will describe them to best of my ability with such a small collection. Let me know if u want them to run DNA in the future. Hope you r having good fortune in the field my friend,

Thanks again,


By: Alan Rockefeller (Alan Rockefeller)
2015-10-24 10:14:17 PDT (-0700)

This does not look a lot like most P. semilanceata collections. They are usually in thicker grass, and the caps look a bit different. Are you able to check the spore size, and size and shape of the cheilocystidia?

It is definitely Psilocybe, also consider P. pelliculosa, P. silvatica and the undescribed species from Washington.

Created: 2015-10-24 09:52:55 PDT (-0700)
Last modified: 2015-10-28 19:21:10 PDT (-0700)
Viewed: 111 times, last viewed: 2018-01-26 13:30:52 PST (-0800)
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