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Species Information
Summary: Features include a whitish, stemless cup with a brown exterior and stiff pointed dark brown hairs covering the exterior and margin, growth on humus or rotten wood, and microscopic characters.
It is found in BC, WA, ID, and also AB, AK, CA, (Larsen). It is widely distributed throughout many parts of North America (Phillips), and also in Europe including Switzerland (Breitenbach), and the United Kingdom (Dennis).
Upper surface: 1-3cm broad, at first nearly spherical, opening to cup-shape; white or whitish to grayish; smooth, margin fringed with brown hairs, (Arora), 1-3cm wide, saucer-shaped (illustrated as low-brimmed cup with incurved margin), gray-whitish, sometimes with bluish glint, margin brown, covered with pointed dark brown hairs, (Breitenbach), up to 3cm wide, permanently cup-shaped; white or whitish, (Dennis), 1-3cm wide, 0.5-1.5cm high; off white to grayish, (Lincoff(2))
Flesh: thin, (Arora), thin, wax-like, (Lincoff(1)), whitish to grayish (Trudell)
Underside: densely covered with stiff brown hairs, (Arora), brown and covered with pointed dark brown hairs, (Breitenbach), covered with stiff dark brown hairs (Dennis)
Stem: none or only as abruptly narrowed base, (Arora), none, (Breitenbach, Dennis)
Odor: none (Lincoff(1))
Taste: none (Lincoff(1))
Microscopic: spores 22.5-27 x 10-13 microns, broadly elliptic, with coarse warts, colorless, with 2 drops; asci 8-spored, 230-270 x 19-23 microns, inamyloid, uniseriate; paraphyses with clavate thickenings 7-8 microns wide on the tips; hairs 200-525 x 14-21 microns, (on margin up to 1000 microns long), tapering evenly to point, thick-walled, multiseptate, dark brown, smooth, (Breitenbach), spores 20-24 x 10-12 microns, broadly elliptic, coarsely warted, with two conspicuous oil droplets; asci 350 x 20 microns; paraphyses clavate, 7-8 microns wide at tips; hairs 500 microns long and 20 microns thick at base, tapering evenly to point, marginal hairs may be 1 mm long, (Dennis), spores with two or sometimes three droplets, (Arora), spores 20-27 x 10-15 microns, elliptic, "covered with small irregular warts", with 2 large oil droplets; hairs pointed, thick-walled, and partitioned by cross-walls, (Trudell)
Habitat / Range
single, scattered, or in groups on ground or occasionally rotten wood, under both hardwoods and conifers, summer and fall, (Arora), usually gregariously, sometimes singly, on damp ground and very rotten wet wood, July to October, (Breitenbach for Switzerland), "on soil in woods or, occasionally, on very rotten wood in wet places, July to October," (Dennis for UK)
Similar Species
Trichophaea species usually have smooth spores with one to several droplets (Breitenbach). Trichophaea species are usually smaller (Trudell).
