Second specimen of this I've ever found myself. This one is still small, about the size of a walnut.
Growing on well rotted hardwood, likely beech.
Spores measure (5.8) 6 - 7.6 (8.8) × (1.5) 1.8 - 2.2 (2.5) µm
Q = (2.9) 3 - 4 (4.4) ; N = 9
Me = 6.9 × 2 µm ; Qe = 3.5