A day or two ago our friend Ron of Shutterbug fame was in need of a palm tree fossil. I couldn't find a whole tree but I did remember photographing the leaf of a Sabal Palm in the Devon Tower Rotunda. It was a large piece of art and I doubt they would want to part with it!
I also had the foresight to even take a pic of the accompanying description. Somewhere there might even be the trunk of a palm tree to go with this leaf. I will let you know if I ever find one. The search goes on!