When: 2010-06-05

Collection location: Yosemite National Park, California, USA [Click for map]

Who: Douglas Smith (douglas)

Specimen available

Found under mixed conifer forest.

Part of the Yosemite fungal survey.

sample num. YNP211

Found at Yosemite west gate parking area.

Location: lat 37.803 long -119.874
Elevation: 5000

Brown spores, veil fragments on margin, some with brown ring high up on stipe.

7/22/2010 – adding some micro-details to the obs.

The first micro-shot is of the cap surface in radial section at 400x in Meltzer’s. Here the cap surface is clearly a cutis. There is only a light amount of gelatin between the hyphae, not greatly viscid.

The second micro-shot is of the gill edge at 400x in Meltzer’s. There are cheilocystidia on a non-fertile edge, the cystidia are lageniform with thick bases and blunt to acute apecies. Also no pleurocystidia were obs., and the basidia are 4-spored. There were no reactions to Meltzer’s in the spores or gill tissues.

The third micro-shot is of the stipe surface near the apex at 400x in KOH. Caulocystidia are obs. in tight clusters, clavate to thickly cylidrical. No caulocystidia were obs. near the base.

The fourth micro-shot is of spores from the stipe apex at 1000x in KOH. The spores are ellipsoid, smooth, tan, somewhat thick-walled with a germ pore. The rough size of spores are 7 × 4 um.

The identity here was fairly clear, but I wanted to get down and post a set of complete micro-details as part of this, to be used in comparison in the future.

Species Lists


Proposed Names

92% (2)
Recognized by sight: See Darvin’s comments on Kuehneromyces vernalis.

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= Observer’s choice
= Current consensus


Add Comment
thanks for your extensive micro-documentation, Doug…
By: Debbie Viess (amanitarita)
2010-07-22 12:15:07 CDT (-0400)

which allows the rest of us to ably follow in your ID footsteps.