When: 2007-05-16

Collection location: King Co., Washington, USA [Click for map]

Who: Luke Bayler (Matango)

Specimen available

Looking for hints as to what this may be.

lamellae: not purplish as are Stropharia gills

spore print: deposit is purple-brown

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

Species Lists


Proposed Names

-57% (1)
Recognized by sight
57% (1)
Recognized by sight

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Add Comment
Stropharia, I think
By: Alan Rockefeller (Alan Rockefeller)
2007-10-20 04:44:48 CDT (-0400)

Looks like a Stropharia species to me.

Stropharia kauffmanii
By: Darvin DeShazer (darv)
2007-05-19 23:33:52 CDT (-0400)

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

Psilocybe luteonitens
By: Darvin DeShazer (darv)
2007-05-19 01:47:15 CDT (-0400)

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.

Brown gills on Stropharia riparia?
By: Luke Bayler (Matango)
2007-05-17 15:48:34 CDT (-0400)

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.

Stropharia riparia?
By: Nathan Wilson (nathan)
2007-05-17 14:51:57 CDT (-0400)

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