Observation 96855: Psathyrella (Fr.) Quél.

When: 2012-06-07

Collection location: Bassetts, Sierra Co., California, USA [Click for map]

Who: Ron Pastorino (Ronpast)

No specimen available

These were growing in a marshy area on the ground(humus) next to the base of the plant, whose leaf is holding the specimens in the photos.
The caps were about 1 cm across or less. The stems were up to 4.3 cm high and 1 mm thick.
Spores were ~ 13-15 X 7-8 microns with a germ pore.
I could not find any significant gill cystidia of any kind except the one pictured in the photo, which was lageniform and ~ 30 X 12 Microns.
The basidia appeared to be 2 spored(see photo) and rather small, ~ 19 X 13 microns.
Looked briefly through A. H. Smith’s Psathyrella tome, especially under section Psathyrella, and could not find a match.


Spores in KOH @ 1000X
Spores and gill trama in Congo Red @ 1000X.
Basidia in Congo Red @ 1000X.
Gill cystidia(?) in Congo Red @ 1000X.

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Created: 2012-06-09 19:37:27 CDT (-0500)
Last modified: 2012-06-09 19:37:27 CDT (-0500)
Viewed: 19 times, last viewed: 2017-06-13 02:33:27 CDT (-0500)
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