Bracket Fungus

What it think is blushing bracket fungus, Daedaleopsis confragosa, growing on a dead branch of a willow tree (Salix sp). 

The underside looks like this:

And the spores (prepared by the method given here) look like this at x600:

These spores are smaller and thinner than those of Peniophora quercina, which is roughly consistent with the 'cylindric 8–11 x 2–3um' given here.

The first photo and the specimen were take in Whiteknights Park, Reading, UK, on 2012-12-15.