Collection location: Albion, Mendocino Co., California, USA [Click for map]
People spent some time going over the macro- and micro-scopic details of these, to try and get a better name for them. After 30-40 mins or so, in the end they said, just call them longipes, and lets move on.
In other news, this was the first year that anyone brought in a Psathyrella at Albion. Kinda weird, but true as far as I could tell. They are probably usually long gone by the time we get up there in Dec-Jan.