The EtOH extract of the leaves of Tabernaemontana divaricata (single flower variety) provides, in addition to voacangine, voacristine, voacristine-7-hydroxyindolenine, apparicine, and 19-epi-voacristine, two new dimeric alkaloids: conophylline [1] and conophyllidine [2]. The structures of the dimeric alkaloids were established by spectral methods and subsequently confirmed by X-ray analysis. © 1993, American Chemical Society. All rights reserved.