Wikipedia
Echigoshirayukidake (Basidiomycetes-X)
Echigoshirayukidake (Basidiomycetes-X, BDM-X) is classified as a basidiomycete because of its beak-shaped processes (clamps). It does not form basidia and only forms sclerotia (hyphal masses) when cultured. In these respects, BDM-X is distinguished from other basidiomycetes. BDM-X, native to Niigata, Japan, is cultured and consumed as an edible mushroom.