Photo: © Steve Trudell
Cortinarius vibratilis
(Fr.) Fr.

Pileus: 1.3 - 3.0 cm broad; obtusely conic to convex, becoming obtusely umbonate to campanulate when mature; margins decurved when young, then straight when mature, entire, even, at times exceeding gills and splitting; surface viscid to glutinous, glabrous; when young, brownish orange to light brown with white edges, when mature, fading to brownish orange on disc, becoming pale orange on margins, edges remaining white; context 2 mm at junction with stipe, moist, firm, same colour as pileus; taste very bitter; odour indistinct.

Lamellae: Ascending to uncinate when young then seceding and appearing free when mature; 3 mm broad wide, ventricose, close to subdistant, edges serrate to wavy at first then eroding when mature; pallid when young, then pallid to light orange when mature; 3 lamellulae.

Stipe: 6 - 8 cm long X 0.3 - 0.6 cm wide at apex, 1.0 - 1.5 cm wide at base; tapering upwards, surface viscid, flexuous, obliquely to abruptly bulbous, silky fibrous; ground colour yellowish white, whitish on surface bruising yellow; context solid, spongy to fibrous, light yellow; veil white.

Microcharacteristics: Spore print rusty brown, spores 6 - 9 X 4 - 5 µm; ellipsoid, warty.

Comments: This is one of the bitterest tasting mushrooms in these forests. There is a close relative also found here: C. crystallinus, but it has paler colours, and a dry stipe. C. vibratilis has viscid stipe.

Further Reading:

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

Moser, M. 1983. Keys to Agarics and Boleti (Polyporales, Boletales, Agaricales, Russulales). Roger Phillips. London. Eng. pp. 535.