The Collaborative International Dictionary of English v.0.48:
Tupelo \Tu"pe*lo\, n. [Tupelo, or tupebo, the native American
Indian name.] (Bot.)
A North American tree (Nyssa multiflora) of the Dogwood
family, having brilliant, glossy foliage and acid red
berries. The wood is crossgrained and very difficult to
split. Called also black gum, sour gum, and pepperidge.
Largo tupelo, or Tupelo gum (Bot.), an American tree
(Nyssa uniflora) with softer wood than the tupelo.
Sour tupelo (Bot.), the Ogeechee lime.