Suillus spraguei (“Painted Suillus”)

Very distinctive red/brown scales all over the cap. Likes White Pine. Yellow pores age to brown, stain red-brown, & can be huge.

SKU: Suillus pictus Categories: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , ,

Description

Name in North American Boletes: Suillus pictus

Genus: Suillus

Species: spraguei

  • Species 2: pictus

Common Name: “Painted Suillus”

Tells: Very distinctive red/brown scales all over the cap. Likes White Pine. Yellow pores age to brown, stain red-brown, & can be huge.

Other Information: The cap is by far the most distinctive feature. Stem may have a grayish ring. Yellow cap flesh DNS or may redden just a bit.

Science Notes: DNA testing has led the authorities to move this mushroom back from the well known “pictus” name to the older spraguii. Whatever the name, it is an eastern counterpart to the equally common, genetically distinct west coast mushroom Suillus lakeii.

Edibility: Good, especially for a suillus. Fresh specimens soften & darken when cooked. Your author prefers them dried.

CHEMICAL TESTS:

  • NH4OH (Ammonia): Cap skin turns blackish. Cap flesh turns olive to greenish black.
  • KOH: Cap skin turns blackish. Cap flesh turns olive to greenish black.
  • FeSO4 (Iron Salts): Cap skin turns blackish. Cap flesh turns grayish green to greenish black.

Links:

National Audubon Society Field guide to Mushrooms, Gary Lincoff 587 Mushrooms of West Virginia and the Central Appalachians 288 North American Boletes 246 BENA 356

 

Got something to discuss?


Guest
Ellen Adams
3 years 1 month ago

I am finding these on my property in the Monadnock region of New Hampshire. I also found them in Pisgah State Park in Hinsdale NH yesterday. What do you need to add those regions to your listing?

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Scott Pavelle
3 years 1 month ago

Spragueii is found across the Northeast. New Hampshire is included in that category. We only add smaller regions when there is access to an exhaustive and all-but-complete local life list, such as that of the Western Pennsylvania Mushroom Club (25 years of careful record keeping) or a renowned local expert.

Guest
Nick Ahrens
2 years 3 months ago

So is this spraguei, pictus, or lakeii? Description explains it’s been rolled back to its previous name.

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Scott Pavelle
2 years 3 months ago

Thanks for the comment. I have clarified the text. This species was widely known by the evocative and useful name of “pictus” but DNA testing and the rules of nomenclature ended up reverting it to the technically older name “spragueii.” The western equivalent, lakeii, is a separate species (and possibly more than one according to unpublished rumor).

Guest
Lynn
2 years 1 month ago

Is their flesh yellow when cut?

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Scott Pavelle
2 years 1 month ago

Yes, the context is yellow.