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 Lincoff581Mushrooms of West Virginia and the Central Appalachians335North American Boletes227 (americanus)

251 (sibiricus)

319

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Guest
Jo
2 years 5 months ago

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