The Collaborative International Dictionary of English v.0.48:

Lecythis \Lec"y*this\ (l[e^]s"[i^]*th[i^]s), n. [NL., fr. Gr. 3
   an oil flask.] (Bot.)
   A genus of gigantic trees, chiefly Brazilian, of the order
   Myrtace[ae], having woody capsules opening by an apical
   lid. Lecythis Zabucajo yields the delicious sapucaia nuts.
   Lecythis Ollaria produces the monkey-pots, its capsules.
   Its bark separates into thin sheets, like paper, used by the
   natives for cigarette wrappers.
   [1913 Webster]