Stem-bark of Ochrosia poweri Bailey furnished isoreserpiline, elliptamine, and three new indole alkaloids, ochropamine (C22H26O3N2), ochropine (C23H28O4N2), and powerchrine (C22H26O3N2). Ochropamine and ochropine are 2-acylindole derivatives closely related to the alkaloid vobasine. Their structures have been assigned as (XVI) and (XVII), respectively, by means of a combination of chemical and spectroscopic techniques. © 1964 CSIRO. All rights reserved.