I saw some big boletes over the course of this excellent season, but nothing like the gigantic porcino discovered this week in Poland. Holy moley! The cap is half a yard in diameter, and that’s no exaggeration.
On the video, it looks pretty firm for such a monster, but by the finder’s stated intention to use it in a Christmas soup, I suspect it’s a soggy bug hotel headed for the dehydrator.
I have seen Boletus edulus of that size (only with a 6″ wide stipe and thicker pileus) in the White Mountains–a child could have used it for a stool!–unfortunately I did not photograph it. And, supposedly a much larger B. barrowsi has been found on a club foray. Perhaps you should start a “biggest Arizona mushrooms” section–it would certainly be interesting! I can add pics of a giant Sparassis my daughter found in early August, as well as a large Sarcodon calvatus from three weeks ago.