Suillus spectabilis
https://www.mushroomexpert.com/Suillus_spectabilis.html
Ecology: Mycorrhizal with tamarack; growing gregariously in low-lying, swampy areas; usually terrestrial, but sometimes growing from well-rotted stumps and logs; late summer and fall; originally described from upstate New York; widespread in North America throughout the natural range of tamarack; also reported in Finland. The illustrated and described collection is from Wisconsin.
Note: The illustrated and described collection is apparently a bit small in comparison to "typical" collections.
Cap: 4-5 cm across; convex becoming broadly convex; sticky when fresh; with grayish to brownish appressed, fibrillose patches and scales over a pinkish red to red ground; the margin sometimes hung with grayish partial veil remnants.
Pore Surface: Yellow; not bruising, or bruising slightly pinkish; 1-2 angular pores per mm; tubes to about 5 mm deep.
Stem: 4-6 cm long; 1-1.5 cm thick; more or less equal; bald and yellow above the ring; red and fibrillose below.
Partial Veil: Glutinous and red when fresh, covering the pore surface and cap; after breaking, disposed as grayish to reddish, sub-fibrillose patches on the cap and, on the stem, as a red, gelatinous ring.
Flesh: Pale yellow in cap and upper stem; darker yellow in stem base; not changing when sliced.
Odor and Taste: Not distinctive.
Chemical Reactions: Not tested on the described and illustrated specimens; KOH reported by Smith & Thiers (1971) as dark green on the flesh.
Spore Print: Dark purplish brown.
Microscopic Features: Spores 10-13 x 3.5-5 m; subfusiform; smooth; yellowish to dull golden in KOH. Basidia 30-35 x 4-6 m; subclavate; 4-sterigmate. Cystidia in bundles; 25-60 x 4-6 m; sometimes poorly defined; subcylindric to subfusiform; thin-walled; reddish brown-encrusted in KOH. Pileipellis an ixocutis; elements 5-10 m wide, smooth or slightly encrusted, yellow to hyaline in KOH. Clamp connections not found.
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