Boletus subfraternus (probably Hortiboletus)

Small (<2″) red cap ages to brownish red, then fades to orange-buff. Cap does not crack like H. rubellus. Pores start yellow, age to red/brown, & stain greenish blue.

SKU: Boletus subfraternus Categories: 2. Found in Florida, 2. Found in New Jersey, 3. Found in Michigan, 4. Found in Ohio, 4. Found in Pennsylvania, 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: 4- Cracked Beyond Environmental Effects, Coniferous ("Needle-y") Trees, Deciduous (Leafy) Trees, Edibility: 3- Iffy, 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's Cap is >0.1" Across, PORE COLOR FILTERS, PORE SIZE FILTERS, PORE STAINING FILTERS, Pores Stain Blue, Pores Stain Other than Blue, Primary Cap Color is: 1- White, Buff, or Light Gray, Primary Cap Color is: 3- Red, Pink, Purple, or Orange, Primary Cap Color is: 4- Some Shade of Brown, Primary Pore Color is: 2 - Yellow to Gold, Primary Pore Color is: 3 - Red, Pink, Purple or Orange, Primary Pore Color is: 4 - Some Shade of Brown, Primary Stem Color is: 1- White, Buff, or Light Gray, 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, Spore Print is 4- Plain Old Brown, STEM COLOR FILTERS, STEM DECORATION/ TEXTURE FILTERS, STEM SIZE FILTERS, Stem: 1- Has No Significant Ornaments, ZONE 1- the NORTHEAST, ZONE 2- the MIDWEST, ZONE 5 - the SOUTH

Description
Discussions

Description

Genus: Boletus (probably Hortiboletus)

Genus 2: Hortiboletus

Species: subfraternus

Common Name:

Tells: Small (<2″) red cap ages to brownish red, then fades to orange-buff. Cap does not crack like H. flavorubellus. Pores start yellow, age to red/brown, & stain greenish blue.

Other Information: Pale yellow cap flesh stains blue. Stem colored like the cap but paler & streaked.

Science Notes: Someone needs to do DNA tests on the holotype. This will almost certainly move the species into Hortiboletus, and possibly to merge it into H. flavorubellus. At the present moment we are stuck with that as the status quo.

Edibility: Unknown.

CHEMICAL TESTS:

NH4OH (Ammonia): Cap flesh does not react.
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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