Summary:
Features include a fan-shaped, white, dry cap, close gills with fringed edges, a short or absent stem, and microscopic characters. The description is derived from Hesler(3).

Cap:
1-3cm, fan-shaped, margin incurved; "pure white and remaining so even when dried"; dry, minutely pubescent [downy]

Flesh:
white

Gills:
adnate if stem present, or converging to a point, close, broad to moderately broad; edges fimbriate [fringed]

Stem:
absent or short

Microscopic spores:
spores 7-10 x 5-6(7) microns, elliptic to suboval, slightly inequilateral in side view, smooth, [no germ pore], brown (dark clay color); basidia 4-spored, 26-34 x 7-9 microns; pleurocystidia none, cheilocystidia 33-55 x 4-7 microns, filamentous, cylindric, subventricose [somewhat wider in middle], or subclavate [somewhat club-shaped]; cap cuticle "of repent hyphae, bearing a turf of straight, long, slender hyphae"; clamp connection present on the trichodermial hyphae

Notes:
The type of Crepidotus occidentalis was found in WA (Hesler). It has also been recorded from BC (Gamiet).

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