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Clitocybe cf. glutiniceps

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

by Michael Kuo

I found the illustrated mushrooms in Wisconsin, under pines, on an island in the middle of the Wisconsin River. Tourist boats for the Wisconsin Dells floated by on the river, loaded with smiling white people who weren't quite sure if the half-Chinese man on his hands and knees in the woods was one of the featured attractions. He wasn't.

Clitocybe glutiniceps is recognized by its ecological role (decomposing needle litter under pines); its thinly slimy, off-white cap; its stem base, which is densely fuzzy with mycelium; its lack of a distinctive odor or taste; and microscopic features (see below). I am using the mycological convention "cf." (explained here) because Clitocybe glutiniceps is officially a species from the Pacific Northwest and northern California--not Wisconsin.

Description:

Ecology: Saprobic; growing gregariously on needle duff or moss under species of pines; fall; Washington, Oregon, and northern California (and Wisconsin?).

Cap: 2-4 cm; broadly convex, becoming flat or very shallowly vase-shaped; thinly slimy when fresh; smooth; dirty whitish to pale yellowish brown, especially over the center; the margin at first inrolled.

Gills: Attached to the stem or beginning to run down it; close or nearly distant; narrow; whitish to creamy.

Stem: 3-5 cm long; up to 6 mm thick; more or less equal; smooth or finely hairy, the base often densely fuzzy with white mycelium.

Flesh: Thin; watery.

Odor and Taste: Not distinctive.

Chemical Reactions: KOH on cap surface negative.

Spore Print: White to creamy.

Microscopic Details: Spores 4-5.5 x 2.5-3 µ; ellipsoid; smooth; inamyloid. Cystidia absent. Clamp connections present. Pileipellis a gelatinized layer of hyphae 1-3 µ wide.

REFERENCES: Smith, 1944. (Bigelow, 1982; Gregory, 2007.) Herb. Kuo 09220403.

Clitocybe sublutea is a virtually indistinguishable species recorded from the Pacific Northwest under alder. Clitocybe thujana, also virtually indistinguishable, has weakly amyloid spores and grows under cedar; it is recorded from the Pacific Northwest and from Michigan.

 

Clitocybe glutiniceps

Clitocybe glutiniceps
Gelatinized hyphae of the pileipellis, causing the slimy texture of the cap.



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Kuo, M. (2010, May). Clitocybe cf. glutiniceps. Retrieved from the MushroomExpert.Com Web site: http://www.mushroomexpert.com/clitocybe_glutiniceps.html