2. Cap Tastes Sour or Acidic
Showing 1–16 of 38 results
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Alessioporus rubriflavus
Mottled cap bruises bluish & tastes vaguely sour. Yellow flesh stains blue, often w/red in the stem base. Yellow stem bruises blue, fading to brown. Yellow netting darkens lower down or if handled.
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Amoenoboletus weberi
Brownish cap dry, scaly & oft-cracked. Pale yellow flesh DNS & tastes “tart and somewhat lemony.” Reddish, oft-scaly stem. Reddish pores.
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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 flaviporus
Viscid, cinnamon-brown cap. White to pink-buff cap flesh DNS & tastes acidic. Viscid stem is yellow on top, red-on-white below.
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Aureoboletus projectellus
Cap flesh tastes lemony. Well-netted red to brown stem. Likes sandy soil and pine, esp. Scots Pine. Cap edge projects past the pores to form a ridge.
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Aureoboletus pseudoauriporus
Brilliant yellow pores dull w/ age & DNS. Smooth pinkish cap tans w/age & has sour skin. Stem striations distinguish from regular auriporus. Stem gets woody by base
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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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Boletus holoxanthus
Yellow cap, pores & stem flesh all blue quickly & then fade to dark gray. Coarsely red-netted stem & cap flesh also blue & then fade. Xerocomoid pores.
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Boletus patrioticus (“Patriotic Bolete”)
Cap context: red zone by skin, white (or pale yellow) flesh, turns blue by the stem. Tastes sour. Blue-bruising yellow pores age darker. Oft-pink upper stem. Likes oak.
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Boletus rufocinnamomeus
Dull brick-reddish cap ages toward cinnamon. Yellow cap flesh blues instantly & may taste acidic. Maroon baby pores age to orange-red & bruise blue.
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Buchwaldoboletus lignicola (“Wood Bolete”)
Grows on wood (usually pine), not ground. Loose cap skin may even move, & may crack w/age. Yellow pores age to brownish & bruise greenish blue.
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Butyriboletus roseopurpureus
All yellow except the pink/purple cap. Yellow flesh blues quickly (fading to slate), smells fragrant, & tastes of sour lemon.
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Butyriboletus taughannockensis (“Igor’s Bolete”)
The butter bolete that does not bruise blue. Brown, often wavy cap fades w/age & can grow spotted in age. Yellow stem w/fine, oft-raised netting. Likes oak.
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Caloboletus peckii
Pale cap flesh w/red larval tunnels, blues slightly, & tastes sour or bitter. Yellow pores stain blue but resolve brown. Red & yellow netted stem.
