1. Found in Northern Illinois
Anyplace where if you said “the City”, people could reasonably think you’re probably referring to Chicago, Illinois. Based on the list found at http://www.nirmi.org/keys/boletes/key.html.
Showing 1–16 of 100 results
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Aureoboletus auriporus (“Sour Gold-Pored Bolete”)
Brilliant yellow pores dull w/ age & usually stain a slow brick red. Pinkish red layer above cap flesh & below cap skin. Viscid, easy to remove cap skin tastes sour. Stem often long.
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Aureoboletus innixus (“Clustered Brown Bolete”)
Often grows in clusters. Yellow w/brown stem often viscid by base. Bright yellow mycelium. Pale cap flesh w/ reddish brown by the skin. Powerful odor.
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Aureoboletus russellii (“Russell’s Bolete”)
Long, deeply textured, pink-tan to red-brown stem is quite viscid, esp. by the base. Variable-colored cap often fissured or in scale-like patches.
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Austroboletus gracilis (“Graceful Bolete”)
Pink or whitish cap flesh DNS. Tubes are very deep & very depressed at the stem. Long, oft-curved, oft-ridged, pale-cap-colored to brownish stem.
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Baorangia bicolor (“Bicolor Bolete”)
Red cap fades w/age. Shallow, bright yellow pores may bruise blue, esp. when mature. Red-and-yellow stem. Red bug holes in yellow stem flesh.
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Boletellus chrysenteroides
Reddish brown/black, scabered stem, often w/yellow high up, stains blue from handling & then slowly reddens. Grows on or around dead wood. Yellowish pores bruise blue.
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Boletinellus merulioides (“Ash Tree Bolete”)
Yellow pores have distinct veins across the surface, & often stain slowly blue.
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Boletus auripes (“Butter Foot Bolete”)
Golden yellow or yellow-with-brown stem has yellow netting. Nothing stains. Yellow pores darken w/ age. Dense texture w/ shallow pores.
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Boletus bicoloroides
Deep red cap fades to pale orange-yellow w/red splashes. Yellow pores bruise blue. Dark red stem w/no netting. Yellow cap flesh stains blue.
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Boletus edulis (“King Bolete”)
Buff stem w/white netting. Babies have stuffed pores. Cap colors vary hugely. White pores age to yellow, & darken w/old age. Likes conifers. Specific tree associates vary with region.
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Boletus glabellus
An ancient name with no known finds. Smoky buff stem has red-purple streaks & red stripe on top, & browns w/age. Green-yellow pores age brownish & stain blue, resolving to brown.
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Boletus miniato-olivaceus
Rosy pink-red cap tans w/age, usually w/olive patches. Yellow pores stain blue-that-browns, add red w/age & end dingy olive. Yellow mycelium. Pinched base.
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Boletus miniatopallescens
Species Concept In Flux. Avoid using this name for now.
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Boletus sensibilis (“Curry Bolete”)
Yellow pores, yellow flesh, red-brown cap, & yellow stem (which may have pink/red by base) all blue instantly & profoundly. Distinctive odor.

