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Entoloma luteum

[Basidiomycota > Agaricales > Entolomataceae > Entoloma . . . ]

by Michael Kuo

Entoloma luteum is like the drab, dreary little brother of Entoloma quadratum and Entoloma murrayi, both of which are brightly colored. Unlike its siblings, Entoloma luteum is a dull brownish yellow--and its cap is not as acutely conic. It is found in hardwood and mixed hardwood-conifer forests, often near moss, in eastern North America. Under the microscope it features cube-shaped spores and long cheilocystidia.

Nolanea lutea is a synonym.


Ecology: Saprobic; growing alone, scattered, or in little clusters under hardwoods or mixed hardwoods and conifers; summer and fall; probably fairly widely distributed east of the Great Plains. The illustrated collection is from northern Michigan.

Cap: 1-3 cm; rounded-conical or bell-shaped; dry; bald, or finely silky over the center; dull brownish yellow, occasionally with a greenish tinge; fading to dull yellowish; the margin becoming finely lined.

Gills: Narrowly attached to the stem; nearly distant; at first whitish or yellowish, becoming pink with maturity.

Stem: 3.5-7 cm long; 2-4 mm thick; more or less equal; dry; bald or very finely hairy; whitish near the apex, elsewhere colored like the cap; basal mycelium white.

Flesh: Thin; fragile; yellowish.

Odor and Taste: Odor not distinctive; taste mild or slightly bitter.

Spore Print: Pink.

Microscopic Features: Spores 8-11 µ; cuboid; hyaline. Pleurocystidia absent. Cheilocystidia cylindric with rounded or clavate apices; 50-100 x 10-15 µ. Pileipellis a cutis with frequently uplifted terminal elements; golden in 10% ammonia; pigment granular and intracellular. Clamp connections present.

REFERENCES: Peck, 1901. (Saccardo, 1905; Hesler, 1967; Horak, 1976; Barron, 1999; Roody, 2003; McNeil, 2006.) Herb. Kuo 09110409.

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


Entoloma luteum

Entoloma luteum

Entoloma luteum

Entoloma luteum

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Kuo, M. (2014, February). Entoloma luteum. Retrieved from the MushroomExpert.Com Web site: