Caps up to 3.7 cm across.
Spores ~ 8.0-9.1 X 5.9-6.1 microns, and moderately rough.
No strong odor detected.
KOH on cap and stem was reddish brown.


Proposed Names

61% (2)
Used references: By semi-popular demand. The spores do seem to have the right size and amount of ornamentation(Mycotaxon 5(2) 389-391).

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

= Observer’s choice
= Current consensus


Add Comment
Like C. thiersii
By: Emma Harrower (eharrower)
2014-03-16 13:43:48 EDT (-0400)

I’ve seen C. thiersii in the spring in Washington State near the snow line. The spore measurements fit this species. My notes for C. thiersii say: “KOH reactions: granular yellow to purplish red extra cellular pigments, depending on age of dried specimen”.

They do look something like C. thiersii
By: Ron Pastorino (Ronpast)
2011-12-31 01:22:08 EST (-0500)

although the caps were a little more darker reddish brown than the photos show.
Also, the C. thiersii is normally found in the Sierras during the spring.

It reminds
By: Irene Andersson (irenea)
2011-12-30 15:25:12 EST (-0500)

quite a bit of Cortinarius thiersii (Dermocybe)

Created: 2011-12-30 12:14:17 EST (-0500)
Last modified: 2014-03-16 16:54:31 EDT (-0400)
Viewed: 151 times, last viewed: 2019-03-03 12:11:34 EST (-0500)
Show Log