Mycena maculata

Conical or bell-shaped to convex caps are typically wrinkled or somewhat grooved at the edges. The cap develops reddish-brown spots with age, or after being cut or bruised. The whitish to pale gray gills also become spotted reddish-brown as they mature. The stem is covered with whitish hairs at its base and can also develop reddish stains. It typically grows in clusters.

Very similar to Mycena inclinata which also grows in clusters on dead wood.

Usually found on a wide range of decaying wood, though rarely on conifers.

Autumn.

Widespread but occasional in Britain.

Uncommon in Leicestershire and Rutland.