Doug Miller wrote:
Larry Blanchard wrote in :

On Jeopardy tonight, there was a question about a sealer with the same
name as a tree. The contestant answered shellac. Alex said the answer
was lacquer.

And he is correct.

http://en.wikipedia.org/wiki/Toxicodendron_vernicifluum aka "Chinese Lacquer Tree".

And shellac comes from a bug, not a tree.