Caloboletus roseipes (“Rosy Foot Bolete”)

Pale cap flesh tastes bitter & stains blue. Blue-staining stem is clean yellow at the top. Yellow pores age brownish & stain blue.

SKU: Boletus roseipes Categories: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , ,

Description

Name in North American Boletes: Boletus roseipes

Genus: Caloboletus

  • Genus 2: Boletus

Species: roseipes

Common Name: Rosy Foot Bolete

Tells: Pale cap flesh tastes bitter & stains blue. Blue-staining stem is clean yellow at the top. Yellow pores age brownish & stain blue.

Other Information: Brown cap fades to grayish tan & may crack w/age. Yellow stem often has reddish netting, & both darkens & takes on red tints going down from the yellow band on top. An eastern equivalent to Calob. rubripes.

Science Notes: DNA testing moved this mushroom from Boletus to a newly erected genus called “Caloboletus”.

Edibility: Avoid. Too bitter to eat.

CHEMICAL TESTS:

  • NH4OH (Ammonia): Cap skin and flesh both turn olive-green (skin darker). Pores stain rusty orange.
  • KOH: Cap skin turns dark rusty-orange. Cap flesh does not react. Pores stain rusty orange.
  • FeSO4 (Iron Salts): Cap skin turns rusty orange. Cap flesh does not react. Pores stain rusty orange.

Links:

National Audubon Society Field guide to Mushrooms, Gary Lincoff 0 Mushrooms of West Virginia and the Central Appalachians 0 North American Boletes 149 192

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