Volatile Leaf Oils of some South-western and Southern Australian Species of the GenusEucalyptus. Part XI. Subgenus Symphyomyrtus. A—Section Bisectaria. (a) Series Occidentales, (b) Unpublished series Annulatae, (c) Series Micromembranae, (d) Series Obliquae, (e) Series Dundasianae, (f) Series Cooperianae, (g) Series Halophilae, (h) Series Salmonophloiae, and (i) Series Pubescentes. B— Section Dumaria. (a) Series Merrickianae

Abstract

The volatile leaf oils of Eucalyptus occidentalis Endl. var. occidentalis, E. astringens (Maiden) Maiden, E. sargentii Maiden subsp. sargentii, E. stowardii Maiden, E. annulata Benth., E. macrandra F. Muell. ex. Benth., E. macrandra F. Muell. ex Benth. subsp. 'olivacea', E. aspratilis L.A.S. Johnson and K.D. Hill, E. grossa F. Muell. ex. Benth., E. dunhii Maiden, E. cooperiana F. Muell., E. halophila D.J. Carr & S.G.M. Carr, E. salmonophloia F. Muell., E. brockwayi C.A. Gardner, and E. merrickiae Maiden & Blakely isolated by vacuum distillation, were analysed by GC and by GC-MS. Most species contained a-pinene (5.1-47.2%), P-pinene (0.1- 16.4%), l,&ineole (2.7-48.6%), p-cymene (0.3-17.7%) and aromadendrene (1.2-20.0%) and bicyclogermacrene (048.5%) as principal leaf oil components.