The Leaf Essential Oil of Galbulimima baccata (Himantandraceae) from Queensland, Australia

Abstract The oil of Galbulimima baccata was analyzed by GC and GC/MS. It appears, from the composition of its leaf oils, to exist in two chemotypes that can be distinguished by complex mixtures of oxygenated sesquiterpenes. In chemotype 1, the principal sesquiterpenes present were elemol/hedycaryol (12–30%), α-, β- and γ-eudesmol (0.6–3%, 0.4–3% and 0.2–3%, respectively) and spathulenol (1–3%), while in chemotype 2 the sesquiterpene component was a complex mixture of C15H22O, C15H24O and C15H26O components, with elemol, spathulenol and the α-, β- and γ-eudesmol mixture being not much more than trace components. These two chemotypes occurred wherever the species was found. The principal monoterpenes present in both chemotypes were α-pinene (2–15%), camphene (8–25%) and δ-3-carene (0.2–13%).

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