Boletus holoxanthus

Yellow cap, pores & stem flesh all blue quickly & then fade to dark gray. Coarsely red-netted stem & cap flesh also blue & then fade.

Description

Genus: Boletus

Species: holoxanthus

Common Name:

Tells: Yellow cap, pores & stem flesh all blue quickly & then fade to dark gray. Coarsely red-netted stem & cap flesh also blue & then fade.

Other Information: In addition to the blues-and-fades characteristics: Yellow cap ages to orange- or golden-brown in the center, cracks & fissures w/age. Yellow cap flesh tastes nutty w/a sour component. Lemon yellow pores age to greenish yellow or olive. Coarse red-netting on a bright yellow stem. Yellow stem flesh is burgundy-red by the base & bug holes. Likes oak. The more widespread B. pseudosulphureus lacks the netting on its stem.

Edibility: Good.

CHEMICAL TESTS:

  • NH4OH (Ammonia): No data.
  • KOH: No data.
  • FeSO4 (Iron Salts): No data.

Links:

National Audubon Society Field guide to Mushrooms, Gary Lincoff0Mushrooms of West Virginia and the Central Appalachians0North American Boletes118

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