Suillus americanus (“Chicken Fat Suillus”)

Very viscid yellow cap, often w/red markings, stains fingers brown when handled. Grows under white pine. Yellow pores slowly stain reddish brown.

SKU: Suillus americanus Categories: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , ,

Description

Name in North American Boletes: Suillus americanus AND Suillus sibiricus

Genus: Suillus

Species: americanus

  • Species 2: sibiricus

Common Name: “Chicken Fat Suillus”

  • Common Name 2: “American Slippery Jack”

Tells: Very viscid yellow cap, often w/red markings, stains fingers brown when handled. Grows under white pine. Yellow pores slowly stain reddish brown.

Other Information: Yellow cap flesh stains purplish brown. Stem is often hollow. There are two California versions, riparius and megaporinus. Both of those are notable for their huge pores.

Edibility: Good, though many people like to remove the cap skin first, especially if they’re being eaten fresh rather than dried.

Science Notes: DNA testing has merged Suillus sibiricus into the better known Suillus americanus.

CHEMICAL TESTS:

  • NH4OH (Ammonia): Cap skin flashes pink before turning red and then darkening to black.
  • KOH: Cap skin turns black.
  • FeSO4 (Iron Salts): Cap flesh turns olive.

Links:

National Audubon Society Field guide to Mushrooms, Gary Lincoff 581 Mushrooms of West Virginia and the Central Appalachians 335 North American Boletes 227 (americanus)

251 (sibiricus)

319

Got something to discuss?


Guest
Jo
1 year 3 months ago

What is the flavor…detected slight sour flavor for chicken fat mushrooms found under our white pine tree