Bjerkandera adusta 

Bjerkandera adusta (Willd.) P. Karst. 

Smoky Polypore” White rotter associated mostly with broadleaved hardwoods.  Small shelf-like bracket, corky velvety gray-brown annual saprotrophic fungus on dead hardwoods. Hymenium is gray to black, turning black with contact.  Thin, slightly hairy small whitish caps fuse as they grow horizontally in tiers. Cap may become bald with age. Color becoming gray to brown and eventually it has a black margin. Pores are tiny and close. White spores.

 This is more common than Bjerkandera fumosa in the northeast. Bjerkander adusta is in the Meruliaceae family of the Polyporales order.