Phylum: Basidiomycota Family: Cortinariaceae
Cortinarius obtusus (Fr.) Fr.
Primarily a species of coniferous woodland, especially pine, but has been reported with some broadleaved trees. It can appear in large trooping groups but not often reported. It has an obtuse umbo, hense the common name
Breitenbach & Kranzlin (2000) Fungi of Switzerland, Volume 5, Agarics, 3rd Part
Knudsen & Vesterholt, editors (2012) Funga Nordica