About Phellinus tremulae (Bondartsev) Bondartsev & P.N.Borisov
Phellinus tremulae, commonly known as the aspen bracket, is a polypore fungus species belonging to the family Hymenochaetaceae. It grows on Populus tremula and trembling aspen in Canada. The species was first published as Fomes igniarius f. tremulae by Appollinaris Semenovich Bondartsev in 1935. This fungus causes the plant disease called aspen trunk rot.