The bell-shaped to convex cap of this common mushroom is greyish-brown, and the gills are white but becoming pinkish with age. Cap width up to to 6cm. Stem height up to 10cm.
It fruits all year round, and is found in clusters on stumps and fallen branches of broadleaved trees. A widespread and common species.
Photographs of Common Bonnet (Mycena galericulata) taken October 2012, nature reserve, Staffordshire. © Pete Hillman 2012. Camera used Nikon Coolpix P500.