Chromosera citrinopallida  

Cap 3-30 mm diameter, hemispherical at first then flattened, usually with a lower area in the middle, edge sometimes wavy or scalloped, short translucent striations sometimes visible near the edge, viscid when young quickly becoming dry and matt, chrome yellow fading to pale yellow or whitish, hygrophanous. Gills broadly adnate to deeply decurrent, sometimes forked, yellow at first fading to whitish when old. Stem 5-35 x 1-4 mm, cylindrical, sometimes compressed with a groove running vertically, hollow, paler in colour than the cap, yellowish white to hyaline whitish, smooth, viscid when young, dry and matt when older. Flesh the same colour as surface, smell and taste not distinctive. Spores (7-)8-10(-13) x (4-)4.5-5.5(-7) µm, Q=1.2-2.1 (-3.0), average 1.6-1.9, ellipsoid, oblong, ovoid or amygdaliform, some with a concave side or slightly constricted in front view, a few elongated spores (up to 12x4 µm) usually present. Basidia slenderly clavate, mostly 4-spored, rarely 2-spored, 25-45 x 6-9 µm. Gill trama interwoven, made up of rather short, cylindrical or vermiform elements, more or less branched and inflated, 30-150 x 6-25µm. Gill edge fertile. Pileipellis in young fruitbodies an ixotrichoderm, later a cutis. Stipitipellis at first an ixocutis, later a cutis.

Map of known distribution in Great Britain and Ireland.