21 October 2005 Surrey. Photograph copyright Leif Goodwin.
Bell shaped, expanding with age, margin radially lined, white, to about 2 cm across
Gills adnate, distant, whitish
Slender, equal, white
White, thin, producing a white sap on cutting
Summer to autumn
On woody debris and leaf litter in woods
Spores ellipsoidal, smooth (10-13) x (5-6) µm2. Basidia 2 or 4 spored. Gill edge cystidia lageniform (flask shaped).
This fungus is a white form of Mycena galopus.