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Cortinarius vanduzerensis

[Basidiomycetes > Agaricales > Cortinariaceae > Cortinarius ... ]

by Michael Kuo

The combination of dark chestnut brown and pale lilac doesn't come to mind when one imagines beautiful color schemes, but Cortinarius vanduzerensis pulls it off with flair, and winds up being one of the most gorgeous mushrooms on the continent. Strictly speaking, Cortinarius vanduzerensis isn't the easiest mushroom in the world to identify, since there several similar species; see the page for Cortinarius collinitus. But most of the look-alikes have paler caps, or have gills that are lilac when young; the immature gills of Cortinarius vanduzerensis are whitish or pale brownish.


Ecology: Mycorrhizal with conifers--especially spruces and hemlocks; growing alone, scattered, or gregariously; fall and winter; Pacific Northwest.

Cap: 4-10 cm; obscurely conical, becoming broadly conical or convex; thickly slimy; smooth when young, often prominently wrinkled in maturity; dark chestnut brown, fading to cinnamon brown.

Gills: Attached to the stem; close; whitish when in the button stage, becoming pale brownish and eventually cinnamon or rusty brown; covered by an ephemeral cortina when young.

Stem: 8-20 cm long; 1-2 cm thick; more or less equal, or tapering to base; often rooting slightly; slimy; pale lilac above, darker lilac (resulting from the slimy universal veil) below; often shaggy underneath the slime; sometimes with a rusty ring zone.

Odor and Taste: Not distinctive.

Flesh: Whitish or tinged cinnamon.

Spore Print: Rusty brown.

Microscopic Features: Spores 12-14 x 7-8 µ; more or less ellipsoid; verrucose. Cheilocystidia 17-26 x 9-15 µ; clavate to mucronate. Pleurocystidia absent. Pileipellis an ixocutis. Clamp connections "absent or rare" in pileipellis (Smith & Trappe, 1972); present in stipitipellis.

REFERENCES: Smith & Trappe, 1972. (Smith & Trappe, 1972; Smith, Smith & Weber, 1979; Arora, 1986; Trudell & Ammirati, 2009; Kuo & Methven, 2010.)

This site contains no information about the edibility or toxicity of mushrooms.


Cortinarius vanduzerensis

Cortinarius vanduzerensis

Cortinarius vanduzerensis

Cortinarius vanduzerensis

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Cite this page as:

Kuo, M. (2005, February). Cortinarius vanduzerensis. Retrieved from the MushroomExpert.Com Web site: