In an attempt to bring the nomenclature of several European polypores up to date Datronia gen. nov. is published to obtain a correct name for Antrodia P. Karst. sensu Murrill; and several new specific combinations are made, viz. with Datronia (2), Antrodia P. Karst. emend. (6), Rigidoporus Murrill (3), Oxyporus (Bourd. & G.) Donk (1), Phellinus Quél. (1). In a few cases annotations are attached to names in current use or to recombinations. Cartilosoma Kotl. & Pouz. is reduced to the synonymy of Antrodia.