That czech site was a very good one, included lots of interesting news to me..!
Btw, the one that’s found at Cape Cod is probably diabolus. The type species was collected not too far away – at Mt Desert, Maine.
of any recent serious research regarding peckii and diabolus..
I prefer to trust Banker, the author of both species, better than the GBIF opinion.
MycoBank, that represents the american opinion, regards them to be separate species.
I agree with that, and I beleive that we have both peckii (smallish, with a bumpy surface, growing with spruce and possibly pine) and diabolus (large fibrous caps, growing with pine) in Fenniscandia too, but no one has investigated them yet..
Making peckii and diabolus synonyms, what is that based on?