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When: 2017-08-18

Collection location: Seven Tubs Natural Area, Pennsylvania, USA [Click for map]

Who: Dave W (Dave W)

No specimen available

Cap cuticle tasted acidic.


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Yes, Dave
By: I. G. Safonov (IGSafonov)
2017-08-28 22:51:22 CDT (-0400)

That thick, rubbery PV is quite unique. That and the salmon-colored flesh. :-) The doppelganger, cothurnatus, is as southeastern species.
I wonder how many Suillus have acidic-tasting slime/pileipellis. For instance, I just ID a collection of S. acidus (formerly intermedius) based on this exact feature that separates this species from the similar subalutaceus. However, the chemical tests, which are practically identical for both species, favored the latter because KOH was olive on the cap.

I agree, Igor.
By: Dave W (Dave W)
2017-08-28 22:23:26 CDT (-0400)

The acidic taste seemed to indicate S. acidus. But, the thick downward sheathing partial veil is the key trait here.