Found on a pile of dung (cow most likely) mixed with straw
Spores:
(13.1) 14.2 - 15.9 (16.7) × (8.3) 8.6 - 9.5 (9.8) µm
Q = (1.5) 1.6 - 1.7 (1.8) ; N = 17
Me = 14.9 × 9 µm ; Qe = 1.7
Shape: Elliptical-ovate
Oil bodies: Not present or nor observed
inamyloid, smooth, small germinal pore , rather central
Cutis of rectangular hyphae, sometimes with rounded or attenuated ends (40-)62.4(-80.1) x (12.8-)20.4(28.9)um, hyaline, thin walled, not pigmented
Veil composed of cylindrical hyphae, mostly straight, variable in size but uniformly arranged; (24-)43(-62.4) x (9.3-)13.3(18.3)um
Only a doubt on C. lagopus actually....