Source : Webster's Revised Unabridged Dictionary (1913)

Titi \Ti"ti\, n. [Orig. uncert.]
   1. A tree of the southern United States ({Cliftonia
      monophylla}) having glossy leaves and racemes of fragrant
      white flowers succeeded by one-seeded drupes; -- called
      also {black titi}, {buckwheat tree}, and {ironwood}.

   2. Any related tree of the genus {Cyrilla}, often disting. as
      {white titi}.

Source : WordNet®

buckwheat tree
     n : tree of low-lying coastal areas of southeastern United
         States having glossy leaves and racemes of fragrant white
         flowers [syn: {titi}, {Cliftonia monophylla}]