Mycena albidofusca

The fruit body is a mushroom with a cap atop a centrally positioned stem. The cap is smooth, up to 3 centimetres in diameter and convex (from more or less conical to almost flat) and there may be a slight central hump (or, technically, an umbo) rather than an even curvature. The cap is striate and brown – except for a whitish, central disc. The stem is also brown, up to 8 centimetres long and just a few millimetres wide.

There is neither a partial nor universal veil.

Spore print: white.

The fruit bodies appear on forest floor litter and usually in large numbers.

There are a number of other brown Mycena species but without the whitish central disc. It would pay to look at or photograph a potential candidate from several angles to ensure that there is definitely a distinct disc – and not just an artefact of light reflection from one angle.