Well, these guys were growing under a scrappy oak tree, near some pine trees.
They must be boletes - they have that bolete underside.
They are quite yellow on the bottom, and are yellow, bruising blue when cut. The top is a pretty rusty orange brown. They grew kind of crooked - can you see the stem of the one I took a picture of when it was still in the ground? The stem sticks out sideways from the top of the mushroom.
I'm pretty frustrated with my mushroom books for this one. The Audubon Society Field Guide to Mushrooms just doesn't have a picture that seems to match.
I think I should have done the spore print right away when picking, they dried up pretty quickly sitting outside in the hot sun, and I ended up getting no spore print when I tried setting it out all night in the evening.
They do smell wonderful though, very reminiscent of porcini's.