What kind of tree is this? I took a few leaves to the local nursery
and they were stumped. The tree has been losing leaves this summer
like crazy - it looks like Fall in my yard! The nursery said it's
probably stressed from the wet summer we've had in Northwest Arkansas
and now it's really hot. They told me it might have a fungus but just
to leav it alone. What kind of tree do you think it is and should I
be doing anything to help it? Thanks for any replies.

Here are a few pictures:

http://s528.photobucket.com/albums/dd327/wahoo677/