An uncommon species with only 22 records on Mycoportal and no reports on Mushroom Observer, however these collections are spread across northern USA and southern Canada. If the western species can be shown to be a different species from eastern collections, this possibly could be revisited. Until such time, this should be listed as LC.
This species belongs in the genus Cuphophyllus, but has not been transferred yet.
One of 13 species named for Mt Rainier, which is now a protected island of old growth forest surrounded by clear-cuts, and forest managed as ‘tree farms’. There are very few modern collections of these species, and this one was used to highlight what is now considered a restricted and fragmented habitat.
Originally described from Mt Rainier, WA, there are 20 records scattered across northern USA and southern Canada.
Only 5 of the 20 records on Mycoportal are post 1970
IF POSSIBLE SPECIFY HABITAT
in moss and open areas in coniferous forest.
to see if the western North American is the same species as ones reported from eastern NA.
Hesler & Smith; North American Species of Hygrophorus: 64 (1963)