Snowbank fungus

They are most commonly found in the mountains of western North America where a deep snowpack accumulates during the winter and slowly melts through the spring and summer, often shaded by coniferous forest.

[3] In his 1975 book A Field Guide to Western Mushrooms, Alexander H. Smith discussed what he called the "snowbank flora", noting "It seems obvious to me that the species in this group are well established throughout the forest zone, and have adjusted to this fruiting pattern, possibly as a response to the habitat drying out and warming up as summer progresses.

Mycorrhizal basidiomycetes include Cortinarius ahsii, C. auchmerus, C. clandestinus, C. croceus, and some others that are provisionally named, as well as the gasteroid species Pholiota nubigena.

White-spored species include the saprobes Clitocybe albirhiza, C.  glacialis, Lentinellus montanus (formerly Lyophyllum[5]), Mycena overholtsii, and the conifer cone decomposers Strobilurus albipilatus and S. occidentalis.

[1] Ascomycete snowbank fungi include the decomposers Discina perlata, Gyromitra montana, Sarcosoma latahense, and Plectania nannfeldtii.