Phylum: Ascomycota Family: Pezizaceae
Peziza badia Pers.
One of the commonest member of this genus, found on woodland tracks, thin soil, meadow borders and similar. Quite variable in colour from light brown to deep chocolate brown
Hansen & Knudsen (2000) Nordic Macromycetes, Vol.1: Ascomycetes
Overall (2017) Fungi: Mushroom & Toadstools of parks, gardens, heaths and woodlands
O'Reilly (2016) Fascinated by Fungi