Porphyrellus nebulosus

Gray-to-brown cap stains darker & often cracks w/age. Yellow pores age to brown & then red-brown, staining blackish-brown.

SKU: Tylopilus nebulosus Categories: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , ,

Description

Name in North American Boletes: Tylopilus nebulosus

Genus: Porphyrellus

  • Genus 2: Tylopilus
  • Genus 3: Boletus

Species: nebulosus

Common Name:

Tells: Gray-to-brown cap stains darker & often cracks w/age. Yellow pores age to brown & then red-brown, staining blackish-brown.

Other Information: Whitish flesh stains red-brown, then darkens.  Gray-to-brown stem often has a whitish base & sometimes a bit of netting.

Science Notes: DNA testing moved this mushroom into the newly erected genus “Porphyrellus.”

Edibility: Good.

CHEMICAL TESTS:

  • NH4OH (Ammonia): Cap skin turns dull reddish to reddish-brown. Cap flesh turns dull yellow to yellow-orange.
  • KOH: Cap skin turns dull reddish to reddish-brown. Cap flesh turns rusty orange.
  • FeSO4 (Iron Salts): Cap skin has no reaction. Cap flesh turns bluish green to olive.

Links:

National Audubon Society Field guide to Mushrooms, Gary Lincoff 0 Mushrooms of West Virginia and the Central Appalachians 0 North American Boletes 267

Got something to discuss?