Photo: © Steve Trudell
Chroogomphus tomentosus
(Murr). O.K. Miller

Pileus: 1.0 - 7.0 cm broad; convex at first, then planar convex to umbonate, at times shallowly depressed; margins inrolled at first, then incurved and straight, even; surface dry, unpolished, with minute appressed fibrils to tomentose and appearing velvet like; when young pallid to brownish and deep orange on disc, fading towards margins; when mature, deep or reddish orange but margins fading to pale to light orange, at times becoming vinaceous to purple when bruised; context 0.5 – 1.0 cm at junction of stipe; firm, fleshy, same colour as cap to pale to light orange; taste mild; odour indistinct.

Lamellae: Horizontal at first then strongly decurrent, distantly spaced, thick, edges even, light to deep orange to reddish orange when young becoming grey brown to brown black at maturity, at times minutely marginate with pallid colours; 1 - 3 lamellulae.

Stipe: 4 - 8 cm long X 0.5 - 1.5 cm wide at apex, 0.5 - 1.0 cm at base; equal to tapering downwards, surface dry, unpolished, with appressed fibrils to tomentose, at times with an ephemeral fibrillose veil that disappears with maturity; light to deep orange, at times becoming reddish orange when handled; context solid, firm, colour pallid to light orange.

Microcharacteristics: Spore print grey black; spores 14 - 22 X 6.0 - 9.0 µm, ellipsoid to spindle shaped, smooth; with abundant, prominent thick walled hymenial cystidia.

Comments: This species has a solitary to gregarious habit and is extremely common in these forest types. It is a western hemlock associate and is found throughout the Pacific Northwest. It is distinctive and easily recognized by its dry wooly to velvety cap and stipe, and the distant gills. This is the only species 200 that was found on all study plots for every year.

Further Reading:

Arora, D. 1986. Mushrooms Demystified. Ten Speed Press. Berkeley, Ca. pp 958.

Miller, O.K. 1964. Monograph of Chroogomphus (Gomphidiaceae). Mycol, 56:526-549.