визуально более "бархатистый", чем щелелистник.
Underneath a log in grassed area.
Paxillus cuprinus found under pin oak and camellias. Bruising red brown, incurled margins of pilus, decurrent gills.
Under oak and beech trees
My initial research brought me to thinking this was similar to a European 'slippery jack', but I'm not sure.
The tops were definitely slick, but I think it was mostly dew and their cap shape/location.
Growing in heavy leaf litter along a park path