A common species that until recently was in the genus Psathyrella. Its fine cutis layer of the pileipellis and a tendency to deliquesce show more affinity with the current taxonomic position

References: 
Breitenbach, J. & Kranzlin, F. (1995) Fungi of Switzerland, Volume 4, Agarics, 2nd Part
Kits van Waveren, E. (1985) The Dutch, French and British Species of Psathyrella
Knudsen, H. & Vesterholt, J. editors (2012 second edition) Funga Nordica