Collection: Bulgaria, Pirin Mountain. Mixed forest: Picea abies and Fagus sylvatica.
|Common to the montane regions of Europe, associated mainly with broadleaved, and more rarely with conifer hosts. Said to be widely distributed in North America and the Pacific Northwest. I have not encountered B. calopus var. calopus in California. Very similar in appearance (sans the reticulations!) to the Sierra Nevada version of B. rubripes.|