Some cool looking ones

[ChefsWild]

Black velvet boletes is my guess.

On this one I am unsure. The stem is shaggy and peeling, the top red flushing to orange-yellow like Amanita jacksoni. I don't think jacksoni has a stem like this however.

[ChefsWild]

Couple more.

Yellow cap, slightly viscid, patchy white flakes on some specimens. Bottom view below.

Partial veil still visible on this one. Mature specimens of the same mushroom (I think?) had flat yellow caps, not very viscid, with a ring.

That is one interesting set of colors on this polypore.

[Dave W]

Dark bolete is very likely a species of Tylopilus. Purple appearance on caps in first pic had me thinking T. plumbeoviolaceus, but I think this is just he lighting. Secone photo looks like T. alboater, the Black Velvet Bolete. The two species mentioned may be separated on the basis of taste.

The orange amanita looks like a species from section Caesareae. Like you say, Chefs, maybe not A. jacksonii. But it can be difficult to tell with a post-mature specimen like this one. I think A. arkansana is a possibility.

http://www.tullabs.com/amanita/?Amanita+arkansana

Tan/yellow amanita looks like A. crenulata. There are a couple other less common possibilities from section Amanita of genus Amanita.

http://www.tullabs.com/amanita/?Amanita+crenulata

Polypore in last photo looks like Turkey Tail, Trametes versicolor. But False Turkey Tail (Stereum ostrea) is also a possibility. Turkey Tail has very small pores that are visible with minimum magnification. S. ostrea has a completely smooth fertile undersurface.

[ChefsWild]

The black velvet boletes taste very nice on a small nibble-and-spit test. I didn't sample the others at all, as I suspected Amanita but wasn't sure of the species.

[Dave W]

Although some say that taste/spit-testing even a poisonous mushroom is okay, I avoid this practice. The only ones I taste test are from relatively safe genera.

Tylopilus alboater is a good edible species featuring firm flesh.