An ethanolic extract of the leaves of Tabernaemontana divaricata (double flower variety) furnished, in addition to voaphylline, N-1-methylvoaphylline, voaharine, pachysiphine, apparicine and conophylline, two new alkaloids, (-)-mehranine and the dimeric indole conofoline. The structures of the new alkaloids were elucidated by spectral methods.