Myochromella

About

Myochromella is a mushroom genus in the family Lyophyllaceae that has been segregated from both Lyophyllum and Tephrocybe using molecular analyses and was first informally labelled clade 'mycochromella' or section 'Tephrophana p.p.' before being recognized as a genus. The species resemble grey colored Collybias and grow in forests.

Summary from Wikipedia