Butyriboletus floridanus

Viscid red cap. Yellow cap flesh blues. Red stem very netted, esp. high up. Red or orange-red pores stain blue, w/yellow drops on babies.

Description

Name in North American Boletes: Boletus floridanus

Genus: Butyriboletus

  • Genus 2: Boletus
  • Genus 3: Exsudosporus

Species: floridanus

  • Species 2: frostii var. floridanus

Common Name:

Tells: Viscid red cap. Yellow cap flesh blues. Red stem very netted, esp. high up. Red or orange-red pores stain blue, w/yellow drops on babies.

Other Information: Likes sandy soil under oaks and sometimes pine. A red-pored, blue-staining, but very edible mushroom. Has an acidic tang when cooked. A southern equivalent to But. frostii.

Science Notes: DNA testing and its odd features initially moved this mushroom and frostii into a newly erected genus called “Exsudoporus” (“exsudo” from the droplets in young pores), but later work has suggested they belong with the butter boletes.

Edibility: Good.

CHEMICAL TESTS:

  • NH4OH (Ammonia): Cap surface turns black.
  • KOH: No data.
  • FeSO4 (Iron Salts): No data.

Links:

National Audubon Society Field guide to Mushrooms, Gary Lincoff  0 Mushrooms of West Virginia and the Central Appalachians  0 North American Boletes 113 204

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