I think it's this one:Indeterminate mushrooms of uncertain health are not permitted in this challenge...
I did go on a mushroom hike about ten years ago. We saw nearly as many poisonous ones as healthy ones. I didn't feel that I learned enough from that venture to go picking these things on my ownsome... I certainly remember nothing from that hike other than it was a really pleasant day, and our guide apparently knew what he was doing.
Suillus americanus
From Wikipedia:Some susceptible individuals have experienced an allergic reaction after touching Suillus americanus. The symptoms of allergic contact dermatitis generally develop one to two days after initial contact, persist for roughly a week, then disappear without treatment. Cooking the fruit bodies inactivates the responsible allergens.
And to eat:
This species is nonpoisonous and sometimes regarded as edible, but opinions about its palatibility are mixed. It has no odor and its taste has been reported as mild. One field guide suggests it has a "distinctive lemony tang", and another says, "The yellow cap may remind you of chicken fat; it has a wonderfully savory mushroom flavor." The slimy texture of the mushroom has been compared to okra. One cookbook author suggests that the mushroom is ideal for spreads, for use on bread or as a dip; baking the fruit bodies in an oven will dry them for future use, and concentrate the flavor. The slimy caps and the pore layer are typically removed before consumption. Another field guide mentions that the "thin flesh hardly make this species worthwhile."