Heliocybe

Heliocybe is an agaric genus[1] closely allied to Neolentinus and the bracket fungus, Gloeophyllum, all of which cause brown rot of wood.

The tanned symmetric cap (pileus) is up to 2 centimetres (3⁄4 in) across and radially cracked into a ray pattern of scales and ridges.

The stipe is cylindrical, up to 2 cm tall and 4 mm wide, sometimes curved, and scaly towards the base, often enlarged.

However, there is strong phylogenetic evidence for the segregation of a group of brown rot causing fungi at the level of order, including Neolentinus, Heliocybe and Gloeophyllum, from the Polyporales where Lentinus and Panus are classified.

[9][10][11][12] In North America, it can be found in the Mountain states and as far east as Texas and Kansas from April to September.