Stature is consistent with P. gracilis. The strikingly corrugated pileus is what is baffling.
The only two documented species of Psathyrella with this sort of corrugation are P. deliniata and P. rugocephala, however both species are far too robust (particularly with a short and thick stipe) compared to this collection which is fragile and slender.
[admin – Sat Aug 14 01:56:50 +0000 2010]: Changed location name from ‘Santa Cruz Fungus Fair, Santa Cruz, Santa Cruz Co., California, USA’ to ‘Santa Cruz, California, USA’
Created: 2008-01-14 04:05:36 PST (-0800)
Last modified: 2010-08-13 18:56:50 PDT (-0700)
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