Observation 341705: Boletaceae Chevall.

When: 2018-10-28

Collection location: Panola Mountain State Park, Rockdale Co., Georgia, USA [Click for map]

Who: Chris Cassidy (cmcassidy)

No specimen available

Growing in mixed woods (pine, oak, hickory, beech & sweetgum). Flesh whitish to yellow, not staining/bruising blue when cut. Pores instantly becoming blue when damaged. KOH amber with slight olive tones; FeSO4 kind of grayish/brown/green.


Proposed Names

3% (2)
Recognized by sight
Used references: BENA
Based on chemical features: KOH on cap
57% (1)
Recognized by sight

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= Observer’s choice
= Current consensus


Add Comment
Thank You, Igor
By: Chris Cassidy (cmcassidy)
2018-11-02 18:41:51 CET (+0100)

I was a bit doubtful, though this was the closest match I was able to come up with via the BENA key (though, I need to spend more time making field notes and examinations in the woods). Lots of mysterious specimens out there.

By: I. G. Safonov (IGSafonov)
2018-10-31 19:52:25 CET (+0100)

I doubt it’s B. rufomaculatus, though I understand where this notion came from. As a matter of fact, not in Baorangia IMO, for the tubes are too deep relative to thickness of cap flesh, for starters… My best guess it could be a relative of P. rubricitrinus based on the overall look. The ostensibly non-staining flesh in the presence of the bluing hymenophore is likely an exception rather than the rule. However, I see a bit of faint bluing closer to the cap cuticle (where the flesh is red) in one of the halves, unless it’s a transfer from the tubes carried by the knife blade. The red pigment in the flesh is likely not oxidation, as it seems to had been there prior to sectioning…
So, looks like another cryptic southeastern Boletaceae with a unique set of morpho-traits… It would be nice to find a fresh collection consisting of several fruitbodies covering the entire range of maturity…
For now, if this was saved, sequencing should be pursued.

Igor, Igor…..
By: Chris Cassidy (cmcassidy)
2018-10-31 13:03:12 CET (+0100)

Any thoughts on this one??

Created: 2018-10-30 02:00:37 CET (+0100)
Last modified: 2018-11-02 18:41:52 CET (+0100)
Viewed: 47 times, last viewed: 2018-11-03 03:43:30 CET (+0100)
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