Silky rosegill.
Beech.
Other deciduous species including horse chestnut, maple, and oak.
Found at the base of the host tree and along the main scaffold structure.
Varied size. Begins as an encased fruit body within a mottled beige-white 'egg', which unfurls to form a splendid cream white cap with a silky finish. Gills begin white and become stained pink by the pink spore. The 'egg' remains in-tact at the base of the stipe.
None.
Considered saprotrophic and associated with a white rot of the wood. It is unlikely that this species acts parasitically on the host tree.