Fourteen indole alkaloids have been isolated from a callus culture of Tabernaemontana elegans. One of them is new, 3-oxo-isovoacangine, the others are the known isovoacangine, 3-R/S-hydroxy-isovoacangine, 3-R/S-hydroxy-coronaridine, isositsirikine, geissoschizol, tabernaemontanine, vobasine, vobasinol, apparicine, 16-hydroxy-16,22-dihydro-apparicine, tubotaiwine, 3-R/S-hydroxy-conodurine and monogagaine. The alkaloid content is similar to that of the whole plant, except for the absence ofthe tabernaelegantines, which were major components in the plant extract. © 1986.