The essential oils of the indigenous Myrtaceae of Lord Howe Island

The essential oils of the five indigenous myrtaceous species of Lord Howe Island have been examined.Leptospermum polygalifoliumSalisb. subsp.howense J. Thompson produced an oil in 0.9–1% yield in which the major compounds were the α‐, β‐ and γ‐eudesmols. These three compounds accounted for over 75% of the oil.Melaleuca howeanaCheel yielded an oil in approximately 0.1% yield in which the major compounds were 1,8‐cineole (5–40%) and globulol (8–18%).Cleistocalyx fullageri(F. Muell.) Merr. & Perry gave an oil, in approximately 0.1% yield, in which the major compound was α‐pinene.Metrosideros sclerocarpaDawson ex P. S. Green produced an oil in at most 0.05% yield in which the major compound wasallo‐aromadendrene (75%), whileMetrosideros nervulosaC. Moore & F. Muell. gave an oil in approximately 0.01% yield in which the major compounds were sesquiterpene alcohols together withn‐hexadecanol.