Per desc in Fuhrer 2016 p.105 and confirmed association with Birch
Pileus ochre 30-55 mm helmet or garden hat shape; gills very close weak milk coffee colour, fine serration of gill edges, occasional forking.
Pileus white tapering from 6-10 mm at attachment to 20 mm bulbous base.
Spore print brown. Spores almond shaped 12 x 6 um with 2 vacuoles.