Butyriboletus roseopurpureus

All yellow except the pink/purple cap. Yellow flesh blues quickly (fading to slate), smells fragrant, & tastes of sour lemon.

SKU: Boletus roseopurpureus Categories: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , ,

Description

A beautiful array from Robert Gergulics of "The 3 Foragers"

A beautiful array from Robert Gergulics of “The 3 Foragers”

Name in North American Boletes: Boletus roseopurpureus

Genus: Butyriboletus

  • Genus 2: Boletus

Species: roseopurpureus

Common Name:

Tells: All yellow except the pink/purple cap. Yellow flesh blues quickly (fading to slate), smells fragrant, & tastes of sour lemon.

Other Information: Yellow pores darken w/age & stain dark greenish-blue, soon fading to a lighter shade. Strongly netted yellow stem instantly stains dark blue (and can be reddish by the base). Particularly likes red oak.

Science Notes: DNA testing moved this mushroom from Boletus to a newly erected genus called “Butyriboletus” (“butyri” being latin for “butter” and this being one of the Butter Boletes).

Edibility: Unknown.

CHEMICAL TESTS:

  • NH4OH (Ammonia): Cap skin turns dingy yellow to dull orange. Cap flesh and stem skin both turn dull orange.
  • KOH: Cap skin, cap flesh, and stem skin all turn dull orange.
  • 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 150 184

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