Phylum: Basidiomycota Family: Marasmiaceae
Rhodocollybia maculata (Alb. & Schwein.) Singer
Spotted Toughshank
This common fungus likes acidic conditions, usually with conifers but also away from trees if the soil is acidic. The large fruiting bodies become spotted and streaked with reddish hues with age
References:
Knudsen & Vesterholt (2012 second edition) - Funga Nordica;
Breitenbach & Kranzlin - Fungi of Switzerland