Four novel iridoids, 6-O-benzoylhanzhiside methyl ester [3], 8-O-benzoyl-shanzhiside methyl ester [9], 6-O-benzoyl-6'-O-acetylshanzhiside methyl ester [13], and 6,6'O-O-dibenzoylshanzhiside methyl ester [14], have been isolated from the aerial parts of Plectronia odorata. Two novel monoterpene alkaloids, plectrodorine [17] and isoplectrodorine [18] and one novel cyclopeptide alkaloid, N-desmethylmyrianthine C [30] have also been isolated. The structures of these new compounds have been deduced from their spectral data and confirmed by chemical correlations. © 1989, American Chemical Society. All rights reserved.