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Suillus decipiens

[ Basidiomycetes > Boletales > Suillaceae > Suillus . . . ]

by Michael Kuo

This southeastern species reminds me of a faded Suillus pictus or Suillus lakei. The cap is a dull pinkish orange, providing a subtle but attractive contrast with the yellow pore surface. Like its more brightly colored counterparts, Suillus decipiens has a dry cap--a welcome relief in a genus filled with slimeballs. Look for Suillus decipiens under pines (species of Pinus, with bundled needles) from New Jersey to Florida, and west to Texas.

Boletinus decipiens is a synonym. Suillus floridanus is a probable synonym.


Ecology: Mycorrhizal with pines (species of Pinus); growing scattered or gregariously; summer, fall, and winter; southeastern United States to Texas.

Cap: 3.5-7 cm; convex becoming broadly convex or flat; dry; yellowish to dull cinnamon or dull orange under small, brownish yellow fibers and scales; often with whitish to yellowish or grayish partial veil remnants on the margin.

Pore Surface: Yellowish, becoming brownish yellow; not bruising, or bruising faintly brownish; pores angular, to 1 mm across, radially arranged; tubes to 6 mm deep; initially covered by a whitish partial veil.

Stem: 3-7 cm long; up to 1.5 cm thick; more or less equal; dry; finely hairy; yellowish to orangish or brownish; occasionally with a fragile ring; without glandular dots.

Flesh: Whitish to yellowish; not staining on exposure, or staining slowly pinkish.

Odor and Taste: Not distinctive.

Chemical Reactions: Ammonia rusty brown, then grayish lilac on cap surface; rusty brown, then blackish on flesh. KOH greenish black on cap surface and flesh. Iron salts slowly black on cap surface and flesh.

Spore Print: Brown.

Microscopic Features: Spores 9-12 x 3.5-5 µ; smooth; subfusoid. Pleurocystidia cylindric to fusoid or subclavate; 40-70 µ long; mostly in bundles; brown in KOH. Clamp connections absent.

REFERENCES: (Berkeley & Curtis, 1853) Kuntze, 1898. (Saccardo, 1888; Singer, 1945; Smith & Thiers, 1964; Snell & Dick, 1970; Smith, Smith & Weber, 1981; Weber & Smith, 1985; Phillips, 1991/2005; Metzler & Metzler, 1992; Both, 1993; Bessette, Roody & Bessette, 2000; Miller & Miller, 2006; Ortiz-Santana et al., 2007.)

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Suillus decipiens

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Kuo, M. (2007, December). Suillus decipiens. Retrieved from the MushroomExpert.Com Web site: