About Tricholomopsis sulfureoides (Peck) Singer
Tricholomopsis sulfureoides (Peck) Singer is a species of gilled mushroom native to the United States. The fruit bodies of this fungus have pale yellow caps that feature paler yellow color zones and light yellow streaks. Their gills are broad, yellow, and connect to the yellow stipe in an adnexed attachment. Young individuals of this species have a thin partial veil. These mushrooms grow either singly or in groups on rotting conifer logs. The species was first formally described by Charles Horton Peck in 1888 under the name Clitocybe sulphurea; Rolf Singer moved it to the genus Tricholomopsis in 1969.
