Abstract
The chemical composition of the leaf oils of Juniperus excelsa obtained from trees growing in northern Greece and Kew gardens have been compared. The leaf oil from native (Greek) J. excelsa is dominated by cedrol (28.1%), α-pinene (22.5%) and limonene (22.7%), with moderate amounts of δ-3-carene (2.3%), myrcene (1.9%) and two unidentified constituents. The oil from the cultivated juniper at Kew is also dominated by cedrol (40.0%) and α- pinene (46.2%), whereas limonene is small (1.3%). Sixty three of the 67 constituents have been identified.