Mushroom Observer: Observation: Psilocybe sp. (3325)

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Observation: Psilocybe sp. (3325)

When: 2007-05-16
Collection location: King Co., Washington, USA [Click for map]
Who: Luke Bayler (Mycoholic)
Herbarium specimen available

Notes: Looking for hints as to what this may be.

lamellae: not purplish as are Stropharia gills

spore print: deposit is purple-brown

microscopic:
spore shape: elliptical with an apiculus
spore size: 6.7×3.8
cystidia: ventricose cheilocystidia with encrustations on the apex

Proposed Names: Propose New Name

Proposed Name		User		Community Vote
*Psilocybe sp.*		Mycoholic		(no votes)

Please login to propose your own names and vote on existing names.

= Observer's choice

= Current consensus

Comments: Add Comment

Created: 2007-10-20 01:44:48
By: (Alan Rockefeller)
Summary: Stropharia, I think

Looks like a Stropharia species to me.

Created: 2007-05-19 20:33:52
By: Darvin DeShazer (darv)
Summary: Stropharia kauffmanii

Another possibility is an old, dry Stropharia kauffmanii.
Spores 6-8×4-4.5 um

Created: 2007-05-18 22:47:15
By: Darvin DeShazer (darv)
Summary: Psilocybe luteonitens

Stropharia riparia always has purple gills when I find it.
This looks like a good fit for Psilocybe luteonitens.
Check out p. 123 in Psilocybin Mushrooms of the World by Stamets.

Created: 2007-05-17 12:48:34
By: Luke Bayler (Mycoholic)
Summary: Brown gills on Stropharia riparia?

Most of the photos I see of S. riparia show the gills as becoming purple-brown, on my collection, the mature gills are not as purplish as they are brown. Ah well, I am calling it S. riparia for now.

Created: 2007-05-17 11:51:57
By: Nathan Wilson (nathan)
Summary: Stropharia riparia?

I can’t quite see enough detail in the photos, but see the page on S. riparia for a possible answer.

Observation created: Thu May 17 08:46:15 -0700 2007
Last modified: Wed Jun 13 19:48:32 -0700 2007
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Images:

Psilocybe sp. (4801)

Psilocybe sp. (4802)

Psilocybe sp. (4803)