Suillus luteus (“Slippery Jack”)

Viscid yellow to red-brown cap w/sour-tasting skin. White stem ages yellow w/purplish or grayish tones, large, oft-viscid ring, & many dots & smears. Likes pine.

SKU: Suillus luteus Categories: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , ,

Description

One of the magnificent arrays by Robert Gergulics of “The 3 Foragers”

Genus: Suillus

Species: luteus

Common Name: “Slippery Jack”

Tells: Viscid yellow to red-brown cap w/sour-tasting skin. White stem ages yellow w/purplish or grayish tones, large, oft-viscid ring, & many dots & smears. Likes pine.

Other Information: Whitish pores quickly age yellow to brown, and DNS. Fruits in the late summer & fall.

Edibility: Good.

CHEMICAL TESTS:

  • NH4OH (Ammonia): Cap skin turns pale gray. Cap flesh turns pinkish before shifting to pale blue-gray.
  • KOH: Cap skin turns dull, dark gray. Cap flesh turns pinkish before shifting to pale blue-gray.
  • FeSO4 (Iron Salts): Cap skin turns grayish olive. Cap flesh turns grayish blue to olive.

Links:

National Audubon Society Field guide to Mushrooms, Gary Lincoff 586 Mushrooms of West Virginia and the Central Appalachians 287 North American Boletes 243 BENA 342

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