Lecythis

 A genus of gigantic trees, chiefly Brazilian, of the order Myrtaceæ, 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]