The Collaborative International Dictionary of English v.0.48:

ginep \ginep\ n.
   A tropical American tree (Melicocca bijuga) bearing a small
   edible fruit with green leathery skin and sweet juicy
   translucent pulp. [Also spelled genip.]

   Syn: Spanish lime, Spanish lime tree, honey berry,
        mamoncillo, Melicocca bijuga, Melicoccus bijugatus.
        [WordNet 1.5]