XANTHOXYLUM, zan-thok'si-lum, _n._ a genus of the _Rutaceæ_, comprising
over one hundred species, of which many are found in Brazil and the West
Indies--the Prickly Ash or Toothache-tree. [Formed from Gr. _xanthos_,
yellow, _xylon_, wood.]
XANTHURA, zan-th[=u]'ra, _n._ a genus of American jays, with yellow tail.
[Gr. _xanthos_, yellow, _oura_, tail.]