A new dimeric indoline alkaloid, melornorsine 111, and six known alkaloids, 1,2dehydroaspidospenidine, rhazidine, 1 1 -hydroxytabersonine, aspidospermidine, geissoschizol, and vincoline have been isolated from the aerial parts of Melodinus rnwsei. The structure of 1 was established on the basis of spectral analysis.