The forms and colors of mushrooms are diverse, but few approach the attractiveness of chicken of the woods mushroom, Laetiporus sulphureus.
This beauty represents about one-quarter of the two-and-a-half-pound specimen offered by Happy Cat at the Headhouse Square Farmers' Market today, which was being sold for $17/pound, a fair price for a delectable fungus. I plan to simply sauteé it with some shallot tonight (finishing with a bit of wine, since this variety does tend to dry out).
Chicken of the woods is a shelf mushroom found growing on the trunks of hardwood trees in the Northeast U.S. When young, like this one, the top is a neon orange, the underside a bright, clean yellow. It's perfectly edible for most folks, although the rare person may find it causes a mild reaction (perhaps swollen lips, nausea, dizziness, etc.), so try a little first before digging into a larger portion.
The variety is a polypore, i.e., it doesn't have gills but instead features pores on the underside.
Don't confuse it with hen of the woods, a.k.a. maitake, a completely different mushroom.