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Clitocybe hygrophoroides

[Basidiomycetes > Agaricales > Tricholomataceae > Clitocybe...]

by Michael Kuo

Because it is reminiscent of some waxy caps (perhaps Hygrocybe pratensis var. pallida, or Hygrophorus chrysodon) this eastern clitocyboid mushroom is named "hygrophoroides"--but its cap and stem are dry, and the resemblance is only superficial. Look for Clitocybe hygrophoroides under eastern white pine in September and October.

Clitocybe variabilis is a very similar species from the Pacific Northwest and California; it features a whiter spore print, caps that turn greenish when dried for the herbarium, and occasional "sclerobasidia" (thick-walled, refractive, ochraceous basidia).


Ecology: Saprobic; growing scattered or gregariously in the duff of eastern white pine; September and October; distribution uncertain, but possibly widely distributed east of the Rocky Mountains.

Cap: 2-7 cm; convex with an inrolled margin, becoming flat, broadly bell-shaped, or slightly centrally depressed, with an even to wavy margin; bald or with a whitish sheen; dry; soft; sometimes developing cracks with age; white to buff.

Gills: Running down the stem; close or nearly distant; often forking; developing wrinkled cross-veins; buff.

Stem: 3-6 cm long; up to 1.5 cm thick; more or less equal; bald or with a whitish sheen; buff; basal mycelium spongy and white.

Flesh: Fairly thick; whitish; soft.

Odor and Taste: Odor fragrant. Taste not distinctive.

Chemical Reactions: KOH on cap surface negative to yellowish.

Spore Print: Buff to creamy.

Microscopic Details: Spores 5.5-8.5 x 3-4.5 µ; ellipsoid; smooth; inamyloid. Cystidia absent. Pileipellis a cutis of elements 1.5-4.5 µ wide. Clamp connections present.

REFERENCES: Bigelow, 1965. (Bigelow, 1982; Gregory, 2007.) Herb. Kuo 10300404.

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


Clitocybe hygrophoroides

Clitocybe hygrophoroides

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Kuo, M. (2010, May). Clitocybe hygrophoroides. Retrieved from the MushroomExpert.Com Web site: