Public Note:
Gleba not cellular, stem too short, and spores too small for Nivatogastrium lignicola. Without chrysocystidia (in patent blue). Lamellate, with white sterile gill edge, and cheilocystidia. Spores length=9.6-12.1µm (µ=10.9, σ=0.69), width=5.8-6.8µm (µ=6.3, σ=0.31), Q=1.5-2.0µm (µ=1.74, σ=0.13), n=20. See also http://mushroomobserver.org/45341?q=2g4Vc .
[KS] 2 collections on N-fagus wood (only one kept, but both photoed). Pileus: sticky, young greyish-white, flushing orange in patches, adult sometimes entirely brownish-reddish orange, grey areas sometimes with a faint greenish tinge, glabrous, weakly hygrophanous, young ± spherical, soon irregular, bumpy, 25-45 mm with one dimension -65 mm.
Margin strongly sulcate when young, later long involute, often with whitish grey veil filaments extending to stipe. Peridium thick (2-3 mm). fragile. Lamllae/gleba: grey, later brownish, thick, irregular, soft, disintegrating, very distant (L = 22). Context: pale grey, flushing orange in stipe centre. Odour pleasant, fruity; taste nil. NaOH ++ orange everywhere.
J.A. Cooper