Abstract The chemical composition of the leaf oils of Psidium parvifolium Griseb. and Psidium cattleianum Sabine were studied by GC and GC/MS. Twenty volatile compounds were identified in P. parvifolium, of which viridiflorol (31.9%) was the major one. Eighteen compounds were identified in P. cattleianum, of which epi-Î±-muurolol (21.9%), Î±-cadinol (20.0%), epi-Î±-cadinol (16.7%) and caryophyllene oxide (13.6%) were major.