I was doing my daily inspection of my plants I noticed this weird glob of stuff in the pot of one of my trees. I'm trying to figure out what exactly this is, because I've seen the same thing in another pot about a month ago. Is this some kind of fungus?

If it's a mushroom it's super weird looking. But I guess that makes sense. Both times it occurred it grows just on top of the mulch in the pot and it seem to grow just overnight.
– Ashley Grenon Apr 11 '12 at 16:01