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#mushrooms

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Aureoboletus mirabilis

mushroomexpert.com/Aureoboletu

Ecology: Mycorrhizal; associated with hemlocks; growing alone, scattered, or gregariously on well-decayed, mossy hemlock stumps and logs—or terrestrially in the vicinity of hemlock stumps; fall and winter; distributed from northern California to Alaska. The illustrated and described collection is from Oregon.

Cap: 8-16 cm; convex, becoming broadly convex or slightly bell-shaped; dry; granular-felty, becoming finely scaly with age; brownish red to brownish purple; the margin with an overhanging, sterile portion.

Pore Surface: Bright to dull yellow when young; becoming olive yellow as spores mature; not bruising; about 1 pore per mm at maturity; tubes to 2 cm deep.

Stem: 7-10 cm long; 1.5-3 cm thick; club-shaped, especially when young; solid; yellow at apex but elsewhere dark brown to dark reddish brown, streaked with paler areas; not bruising; bald below and sometimes overall, but usually coarsely reticulate over the upper portion.

Flesh: Whitish to pale yellowish; sometimes purplish under the cap cuticle; not staining on exposure.

Odor and Taste: Not distinctive.

Spore Print: Olive brown.

Microscopic Features: Spores 16-22 x 6-8 m; fusiform; smooth; golden in KOH. Basidia 4-sterigmate; about 40 x 12.5 m; clavate. Hymenial cystidia 60-80 x 7.5-12.5 m; cylindric to fusiform; smooth; thin-walled; hyaline in KOH. Pileipellis a trichoderm; elements 4-8 m wide, smooth or slightly encrusted, hyaline to golden in KOH; terminal cells subclavate, or cylindric with rounded apices.

Cortinarius malicorius

mushroomexpert.com/Cortinarius

Ecology: Mycorrhizal with conifers, especially pines; growing scattered or gregariously, often in wet areas or with sphagnum; fall (and winter on the West Coast); widely distributed in North America but more common in the Northeast.

Cap: 1.5-5 cm; convex or nearly conical at first, becoming broadly convex, flat, depressed, or broadly bell-shaped; fairly dry; silky to finely scaly; yellowish or orangish at first, often with olive tones, becoming orangish brown to cinnamon brown overall.

Gills: Attached to the stem but sometimes pulling away from it in age; close; orange at first, becoming cinnamon to rusty; covered by a yellowish to orangish cortina when young.

Stem: 2-7 cm long; up to 1 cm thick; more or less equal; dry; silky with orangish to yellowish (later cinnamon) fibers; yellowish, often discoloring olive brown to brownish below; sometimes with a rusty ring zone.

Flesh: Yellowish or olive.

Odor: Radishlike.

Chemical Reactions: KOH on cap surface red or reddish black.

Spore Print: Rusty brown.

Microscopic Features: Spores 6-7.5 x 4-4.5 ; ellipsoid; moderately roughened. Cheilo- and pleurocystidia absent, but inconspicuous marginal cells present on gill edges. Pileipellis a cutis. Contextual and lamellar elements pinkish purple to purplish in KOH.