Notes/link from my MO observation below-
Fruiting in grass/moss beneath Pinus contorta. Harvested/dried 2 specimens for herbarium collection. https://mushroomobserver.org/439570?q=1XsbF
Large caps (to 26 cm across), lifted margins forming a rim; gills cream, decurrent, separable from cap; stem whitish to brown, longitudinally striate (finely) at the top, mycelial mass at bottom; smell pleasant, somewhat farinaceous; taste mild. White spore print.
Notes/link from my MO observation below-
Fruiting beneath Douglas fir and big leaf maple. Orange staining(turning completely orange after dehydration). Harvested/dried 2 specimens for herbarium collection.
https://mushroomobserver.org/440153?q=1XsbF