Weird fungus - bright orange. What is it?

[conuly]

It was growing on our nearly-dead tree outside my window. I couldn't get a good picture of it, but the limb fell down recently (honestly, the best thing to do would be to chop down the whole tree now, but nobody listens when I say that) so I went up and took two pictures, one of the underside and one of the... uh... otherside.

Comments

[ironychan.livejournal.com]

I'm afraid, not being a mycologist, the best you're goign to get out of me is that it looks like a slice of yam.