Phellinus robiniae 2170

Phellinus rimosus2170

 “Cracked cap” polypore’. Perennial.  White rotter on Locust trees. 

Upper surface of this hoof-shaped conk starts out somewhat tomentose and yellow-brown, but becomes black and cracks as it matures. The pore surface is yellow-brown to reddish-brown. It grows a new tube layer annually. Feeds on heart wood. Found principally on Black Locust. The word “Phellinus” means cork-like.