Actually two collections here, sort of, one found under spruce and ponderosa pine, the other under spruce, d. fir and aspen. It seems that C. amianthinum is a common name for the area, but there seems to be another name and the difference seems to be only spores are amyloid or inamyloid? Or, not sure here, I save a couple and I might check this at some point (or maybe not...).