Phylum: Basidiomycota Family: Entolomataceae
Clitopilus prunulus (Scop.) P. Kumm.
The Miller
Common among grassy areas, usually near and under trees. The genus has unusual, 'winged' spores. The common name is derived from a distinct farinaceous smell
References:
Overall (2017) Fungi: Mushroom & Toadstools of parks, gardens, heaths and woodlands
O'Reilly (2016) Fascinated by Fungi