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.

SKU: Boletus auripes Categories: 1. Found in Connecticut, 2. Found in Florida, 2. Found in New Jersey, 3. Found on Long Island (New York), 4. Found in Pennsylvania, 4a. Found in S.W. Pennsylvania, 5. Found in W. Va. or the Central Appalachians, 6. Found in Eastern Texas, CAP COLOR FILTERS, CAP FLESH COLOR FILTERS, Cap Flesh Does Not Stain with 30 seconds, Cap Flesh is Yellow, CAP FLESH STAINING FILTERS, CAP SIZE FILTERS, CAP TASTE FILTERS, CAP TEXTURE FILTERS, Cap Texture is: 1- Dry & Smooth (Normal), Deciduous (Leafy) Trees, Edibility: 5- Choice, FILTER SET #1: REGION, FILTER SET #2: CAP FEATURES, FILTER SET #3: PORE FEATURES, FILTER SET #4: STEM FEATURES, FILTER SET #5: CAP FLESH (CONTEXT) FEATURES, FILTER SET #6: SPORE PRINT, FILTER SET #7: HABITAT FILTERS, FILTER SET #8: EDIBILITY, My Mushroom is Mature & Its Pores are Tiny, My Mushroom's Cap is >0.1" Across, My Mushroom's Cap is >4” Across, My Mushroom's Cap is >6” Across, PORE COLOR FILTERS, PORE SIZE FILTERS, PORE STAINING FILTERS, Pores Do Not Stain within 30 seconds, Primary Cap Color is: 2- Yellow to Orange, Primary Cap Color is: 4- Some Shade of Brown, Primary Pore Color is: 2 - Yellow to Gold, Primary Stem Color is: 2- Yellow to Orange, Spore Print is 1- Olive to Olive-Brown, Spore Print is 2- Yellow to Yellow-Brown, Spore Print is 4- Plain Old Brown, STEM COLOR FILTERS, STEM DECORATION/ TEXTURE FILTERS, STEM SIZE FILTERS, Stem: 5- Is Netted (Reticulated), ZONE 1- the NORTHEAST, ZONE 5 - the SOUTH

Description
Discussions(2)

Description

Genus: Boletus

Genus 2: Tengioboletus (see Science Notes below)

Species: auripes

Common Name: “Butter Foot Bolete”

Tells: Golden yellow or yellow-with-brown stem has yellow netting. Nothing stains. Yellow pores darken w/ age. Dense texture w/ shallow pores.

Other Information: An attractive find.

Edibility: Choice.

Science Notes: Everyone knows this isn’t a true Boletus, but much debate exists about where it will end up. The most likely suggestion at this point is Tengioboletus, which is otherwise confined to species from east Asia. Remember how Baorangia bicolor has an odd occurrence in east Asia and eastern North America? The same thing may be going on with this species.

CHEMICAL TESTS:

NH4OH (Ammonia): Cap surface turns yellow. Cap flesh turns a more intense yellow.
KOH: Cap surface turns deep yellow. Cap flesh turns a more intense yellow.
FeSO4 (Iron Salts): Cap surface does not change. Cap flesh turns a more intense yellow.

Links:

National Audubon Society Field guide to Mushrooms, Gary Lincoff

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Mushrooms of West Virginia and the Central Appalachians

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North American Boletes

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BENA

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marj a bartlett

4 years 11 months ago

found in Rhode Island!

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Chris Seifried

4 years 9 months ago

I find these in Quebec regularly in season.

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