When: 2009-08-06

Collection location: Meadowood Park, Mendham, New Jersey, USA [Click for map]

Who: I. G. Safonov (IGSafonov)

No specimen available

These red-capped, yellow-pored boletes with variable blueing action drive me insane (in my opinion, this is the most difficult section of Genus Boletus). One thing for sure, this is not B. bicolor. The collected specimens were growing in a scattered fashion under hardwoods, possibly oak. The only part of the mushroom that blued instantly and intensely was the pore surface; upon dissection, the blue color was very faint from the get-go and never intensified. The stipe was not reticulated; however, the surface appeared somewhat textured. The color of the pilepellis was red-brown (in some pics it is clearly red, in others — more brown). Unfortunately, I did not perform any chemical tests.


Proposed Names

-6% (2)
Recognized by sight
57% (1)
Recognized by sight: Given the habitat (upland forest with non-sandy soil), P. sclerotiorum is less likely than its look-alike represented by obs 215764 & obs 286328. Another suspect collections, which looks very much like this one, is obs 336257; though was collected in the outer coastal plain, the presence of beech suggests a different ecology.

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= Observer’s choice
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