Observation 287204: Caloboletus Vizzini

When: 2017-08-12

Collection location: Sieg Conference Center, Clinton Co., Pennsylvania, USA [Click for map]

Who: walt sturgeon (Mycowalt)

No specimen available

Images

Proposed Names

29% (1)
Recognized by sight

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= Observer’s choice
= Current consensus

Comments

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Are we talking about the same mushroom? :-)
By: I. G. Safonov (IGSafonov)
2017-08-19 19:35:47 PDT (-0700)

I recon you didn’t support either side of the debate. I agree with you that this is neither bicolor nor pseudosulfureus. However, your ID of Caloboletus is contradicted by the mild taste. IMO, the pore surface is too bright/rich yellow for it, too. Still it’s a more sensible proposal than the other two.
With regard to flesh staining, seems like these blued very fast judging by the in situ photos, whereas your comments says otherwise.
Most unfortunately, the visible stipes are badly damaged by insect activity, and stipe color and texture are absolutely essential for bolete ID. However, the intact stipe surface at the apex suggests the reticulation was limited only to the juncture of the hymenium with the stipe. The largest fb actually seems has its stipe intact, but the angle is bad and there is too much shade and insufficient resolution to see the details. Do your have any pix of that one by any chance?
The extant cap pigment suggests that the pilei were perhaps some shade of brown when fresh, but in many boletes pigments are not stable to adverse weather conditions, which these fbs seemed to have been subjected to.
My two cents – the combination of visible morphology reminds me of something in Buchwaldoboletus.

Collection
By: walt sturgeon (Mycowalt)
2017-08-19 18:44:35 PDT (-0700)

might have been saved by professor Barrie Overton who hosted the foray. It had a mild taste and was very robust and firmly anchored to the substrate, under oaks. The debate at the foray was between a bleached B. bicolor (the flesh did not stain quickly after sitting on the foray table) and Neoboletus pseudosulphureus.

Interesting collection, Walter
By: I. G. Safonov (IGSafonov)
2017-08-19 10:42:51 PDT (-0700)

Do you have a description and/or sample?