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Keywords:

  • Eucalyptus occidentalis Endl. var.occidentalis;
  • Eucalyptus astringens (Maiden) Maiden;
  • Eucalyptus sargentii Maiden subsp.sargentii;
  • Eucalyptus stowardii Maiden;
  • Eucalyptus annulata Benth.;
  • Eucalyptus macrandra F. Muell. ex. Benth.;
  • Eucalyptus macrandra F. Muell. ex Benth. subsp.‘olivacea’;
  • Eucalyptus aspratilis L.A.S. Johnson and K.D. Hill;
  • Eucalyptus grossa F. Muell. ex. Benth.;
  • Eucalyptus dundasii Maiden;
  • Eucalyptus cooperiana F. Muell.;
  • Eucalyptus halophila D.J. Carr & S.G.M. Carr;
  • Eucalyptus salmonophloia F. Muell.;
  • Eucalyptus brockwayi C.A. Gardner;
  • Eucalyptus merrickiae Maiden & Blakely;
  • Myrtaceae;
  • leaf essential oil composition;
  • torquatone;
  • mono- and sesquiterpenoids;
  • GC-MS

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. dundasii 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 α-pinene (5.1–47.2%), β-pinene (0.1–16.4%), 1,8-cineole (2.7–48.6%), p-cymene (0.3–17.7%) and aromadendrene (1.2–20.0%) and bicyclogermacrene (0–28.5%) as principal leaf oil components.