Rubroboletus dupainii

Slimy/viscid purple-to-pink red cap with red, blue-bruising pores that yellow w/age. Edge of skin on the cap. White to pale yellow flesh bruises blue & then darkens.

SKU: Boletus rhodosanguineus-1 Categories: 5. Found in North Carolina, CAP COLOR FILTERS, CAP FLESH COLOR FILTERS, Cap Flesh is White, Cap Flesh is Yellow, CAP FLESH STAINING FILTERS, Cap Flesh Stains Blue, CAP SIZE FILTERS, CAP TASTE FILTERS, CAP TEXTURE FILTERS, Cap Texture is: 1- Dry & Smooth (Normal), Cap Texture is: 2- Viscid, Sticky, Slimy or Slick, Deciduous (Leafy) Trees, Edibility: 1- Avoid, 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, PORE COLOR FILTERS, PORE SIZE FILTERS, PORE STAINING FILTERS, Pores Stain Blue, Primary Cap Color is: 3- Red, Pink, Purple, or Orange, Primary Pore Color is: 2 - Yellow to Gold, Primary Pore Color is: 3 - Red, Pink, Purple or Orange, Primary Stem Color is: 2- Yellow to Orange, Primary Stem Color is: 3- Red, Pink, Purple, or Orange, Primary Stem Color is: 4- Some Shade of Brown, Spore Print is 1- Olive to Olive-Brown, STEM COLOR FILTERS, STEM DECORATION/ TEXTURE FILTERS, Stem Is Bulbous, STEM SIZE FILTERS, Stem: 1- Has No Significant Ornaments, Stem: 7- Is Notably Dotted and/or Spotted, ZONE 1- the NORTHEAST, ZONE 2- the MIDWEST, ZONE 5 - the SOUTH

Description
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Description

Name in North American Boletes: N/A

Genus: Rubroboletus

Species: dupainii

Common Name:

Tells: Slimy/viscid purple-to-pink red cap with red, blue-bruising pores that yellow w/age. Edge of skin on the cap. White to pale yellow flesh bruises blue & then darkens.

Other Information: Yellow stem w/red speckling at the bottom, often enlarges going down & then narrows at the ground. White mycelium. Blue bruising yellower stem flesh is often red lower down. Often has a pleasant “musky” odor. Dry caps are shiny. Has been described as “fake frostii” or “frostii with a different stem” due the similar cap color and sliminess. Likes oak and hickory, particularly red oak.

Science Notes: A European species with a very odd distribution that includes Iowa, Mexico, and North Carolina. People are still figuring it out.

Edibility: The books say “Unknown” but I wouldn’t touch a Rubroboletus. It is marked as “avoid” on this site due to its dangerous relatives.

CHEMICAL TESTS:

NH4OH (Ammonia): No data.
KOH: No data.
FeSO4 (Iron Salts): No data.

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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