Volatile Constituents of the Leaf Oil ofArtemisia verlotiorumLamotte andAmbrosia tenuifoliaSprengel (Syn.:Artemisia psilostachyaauct. non L.)

The water distilled leaf oils of the two Mauritian medicinal plants Artemisia verlotiorum Lamotte and Ambrosia tenuifolia Sprengel, were examined by GC and GC/MS. The oil of Artemisia verlotiorum which was obtained in 1.7% yield contained 22 identified constituents representing 77.8% of the oil with germacrene D (23.6%) as the major component. Ambrosia tenuifolia (1.32% yield) contained 32 components representing 99.2% of the oil with α-thujone as the major component (79.3%).