Caloboletus conifericola

Both pale, bitter cap flesh & yellow pores (age dingier) instantly blue. Pale yellow stem darkens to deep brown by the base, & has fine netting at least on top.

Description

Name in North American Boletes: Boletus coniferarum

Genus: Caloboletus

  • Genus 2: Boletus

Species: conifericola

  • Species 2: coniferarum

Common Name:

Tells: Both pale, bitter cap flesh & yellow pores (age dingier) instantly blue. Pale yellow stem darkens to deep brown by the base, & has fine netting at least on top.

Other Information: Dark gray cap ages to grayish brown or brown, sometimes w/reddish or dark streaks, & often cracks or fissures w/age. Can be huge (12″ across), which adds a whole new layer of bitterness on top of the taste. Likes conifers. Pacific Northwest.

Science Notes: DNA testing moved this mushroom from Boletus to a newly erected genus called “Caloboletus”. The species name was revised at the same time for unknown but probably sound reasons.

Edibility: Too bitter to eat.

CHEMICAL TESTS:

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

Links:

National Audubon Society Field guide to Mushrooms, Gary Lincoff  0 Mushrooms of West Virginia and the Central Appalachians  0 North American Boletes 106 BENA  0

Got something to discuss?


Guest
Nick Clapham
2 years 10 months ago

Is there a place I can upload a photo to identify this mushroom

Support
Scott Pavelle
2 years 10 months ago

No, all photos have to go through me. The best thing would be to post it on Mushroom Observer and to send an email to me that you’ve done so. We have a very strict rule that all photos have to be ID’d by actual field experts in addition to whatever my opinion may be. The ones I rely on are all there on M.O., so that would be the convenient intersection.

Let me know if you have no account. I would be happy to post it for you. We could use more photos of Western species.

My email address is scottp@pavellelaw.com. Best to write to me there.

Guest
Normandy
3 days 9 hours ago

Would you like some dehydrated samples from alaska with photos and geo locations?

Support
Scott Pavelle
3 days 3 hours ago

I am sure someone would! This site is maintained by amateurs, not professional mycologists, so we are the wrong group to approach. iNaturalist might be a good one. Or any of the good mycology programs, with a question about who would be interested in the sample. It will depend on what scientists are currently working on the Caloboletus group.