Pseudofistulina radicata 

Pseudofistulina radicata 9913

White rotter of oak and chestnut (Rare). Saprotrophic on the dead wood of oaks and chestnut trees.  Several velvety, dry tan-brown caps can grow from a single radicating stem. Like Fistulina hepatica, the pores are tubes that look like straws and are separable. Fruits in summer and autumn.