Polypore fungi

Went to some woods today for a couple of hours. Didn't find a great deal to photograph, except this rather uncommon fungi. It is probably the Tuberous Polypore (Polyporus tuberaster), but not 100% sure.Had to photograph it from a low angle as it had been eaten on the top, so the cap details are not very visible. This image is a stack of 21 to achieve the depth of field.