Observation 45307: Psathyrella (Fr.) Quél.

When: 2010-05-07

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

Who: Ron Pastorino (Ronpast)

Specimen available

Found near South Fork Tuolumne River growing on ground in mixed woods.
Elevation approx. 4485ft.
37 degrees 48.628’
119 degrees 51.387’

Spore print not obtained but spores appeared brown in KOH and gills turn dark brown in age.
Spores approx. 8.7-9.6 X 4.7-5.1 microns. Elliptical, smooth and with germ pore.

Caps up to about 2.5 cm across.
There seemed to be some short, scattered tubular gill cystidia(see last photo).

As yet, I can’t pin down the genus of brown spored mushrooms. Looking for suggestions.

Proposed Names

29% (1)
Recognized by sight
55% (1)
Recognized by sight: Hygrophanous, germ pore on dark spores, white stipe

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

Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
Psathyrella looks good
By: Ron Pastorino (Ronpast)
2010-05-11 18:08:42 CDT (-0400)

Thanks Christian, and it could be the common P. cadolleana based on the spores and the Cheilocystidia. A. Smith mentions cystidia that is"…cylindric, occasionally the lower portion slightly ventricose."

Created: 2010-05-11 17:01:17 CDT (-0400)
Last modified: 2013-12-03 13:25:14 CST (-0500)
Viewed: 64 times, last viewed: 2017-06-07 09:43:41 CDT (-0400)
Show Log