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Entoloma incanum

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

by Michael Kuo

It's green and it smells like mice. I can't think of a more concise, or more accurate, way to characterize Entoloma incanum. If you are wondering whether you will recognize the odor of mice, trust me that your junior-high biology olfactory memory will come through for you. The green-ness, however, is not always as evident as it is in the specimens to the right. Entoloma incanum fades quickly, and is often found looking brownish or yellowish, and fairly drab.

If your mushroom is green but smells like ouzo or black licorice instead of mice, it's probably Clitocybe odora.

Description:

Ecology: Saprobic; growing alone, scattered, or gregariously under hardwoods or conifers in woods--or in grassy areas, moss, leaf litter, or disturbed soil (ditches, paths, road beds, and so on); summer and fall; fairly widely distributed east of the Great Plains, and documented once by Largent (1994) in Idaho.

Cap: 1-5 cm; convex with a central depression or a "navel"; dry to greasy; bald or finely silky; yellow-green becoming deep green, then fading to greenish, yellowish, or brownish; the margin becoming lined.

Gills: Attached to the stem; nearly distant; at first whitish or colored like the cap, becoming pink with maturity; bruising green to blue-green.

Stem: 2-6 cm long; 1-4 mm thick; more or less equal; dry or greasy; bald; hollow; colored like the cap, or more brightly colored; bruising darker green to blue-green; basal mycelium white.

Flesh: Thin; fragile; yellowish to greenish; darkening to dark green or blue-green when bruised.

Odor and Taste: Odor of mice; taste not distinctive.

Spore Print: Pink.

Microscopic Features: Spores 7-12 x 5-8 µ; mostly 6-sided; heterodiametric; inamyloid. Hymenial cystidia absent. Pileipellis a cutis of elements 5-10 µ wide; pigment intracellular; occasional clavate cystidioid terminal elements 33-63 x 8-12 µ. Clamp connections absent.

Leptonia incana and Leptonia euchlora are synonyms.

REFERENCES: (Fries, 1821) Hesler, 1967. (Saccardo, 1887; Hesler, 1967; Smith, Smith & Weber, 1979; Phillips, 1991/2005; Largent, 1994; Breitenbach & Kränzlin, 1995; Noordeloos, 1998; Barron, 1999; Roody, 2003; Miller & Miller, 2006.) Herb. Kuo 09029507, 09150713.

Further Online Information:

Entoloma incanum at Roger's Mushrooms

 

Entoloma incanum

Entoloma incanum
Spores



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Kuo, M. (2013, January). Entoloma incanum. Retrieved from the MushroomExpert.Com Web site: http://www.mushroomexpert.com/entoloma_incanum.html