Growing on a well-rotted, decorticated Pinus strobus log in a plantation of that species. All structures inamyloid. Monomitic with clamps. Basidia 4-sterigmate, not pleural, cylindrical to clavate and constricted toward the middle. Sterigmata up to 1.4 µm long. Irregular hyphoid cystidia present. Spores allantoid and smooth. Spore measurements from Piximetre: (3.8) 3.9 - 4.6 (4.9) Ã- (1.1) 1.2 - 1.5 (1.9) µm, Q = (2.5) 2.7 - 3.5 (3.9); N = 20, Me = 4.2 Ã- 1.4 µm; Qe = 3.2 Individual spores: 3.99 x 1.13 µm, 4.08 x 1.18 µm, 4.08 x 1.38 µm, 4.58 x 1.37 µm, 3.98 x 1.22 µm, 3.92 x 1.55 µm, 4.25 x 1.20 µm, 4.13 x 1.21 µm, 4.57 x 1.71 µm, 4.15 x 1.34 µm, 4.05 x 1.50 µm, 4.50 x 1.15 µm, 3.90 x 1.39 µm, 4.08 x 1.30 µm, 4.83 x 1.94 µm, 4.13 x 1.33 µm, 4.48 x 1.26 µm, 4.19 x 1.29 µm, 4.89 x 1.47 µm, 3.81 x 1.29 µm