pittosporum_undulatum

Pittosporum undulatum Vent. - Pittosporaceae - sweet pittosporum, Australian daphne, Australian cheesewood, Victorian box, mock orange, Orangen-Klebsame, Australischer Klebsame

Evergreen shrub or small tree, up to 13m tall, native to Australia (Queensland, Victoria), introduced elsewhere; leaves alternate, broadly elliptic to oblanceolate, green above, pale beneath, tomentulose, becoming glabrous with maturity, 6-17cm long; inflorescence terminal, clustered or in cymes of 4-15 flowers, petals narrowly oblanceolate, 11-17mm long, white; capsules subglobose, 8-14mm diam., yellow, orange or brown. Kew FloraSA

„P.undulatum has become invasive in parts of Australia where it is not indigenous. It is also highly invasive in South Africa, the Caribbean, Hawaii, the Azores and southern Brazil.“ wikipedia

„The flowers of the tree are also known to possess an exquisite fragrance, which, however, is quite distinct from the fruit, and resembles that of orange blossom.“
[Power, Frederick Belding, and Frank Tutin. „CX. The constituents of the essential oil from the fruit of pittosporum undulatum.“ Journal of the Chemical Society, Transactions 89 (1906): 1083-1092]

sabinene

limonene

benzyl salicylate

„P.undulatum flowers are known for their jasmine-like odour… Essential oil samples were isolated from the (deep-frozen) aerial parts by hydrodistillation to estimate the oil yields, and by distillation–extraction to determine their percentage composition, and analysed by GC and GC-MS. Monoterpenes (59-97%) were dominant in all oils, sabinene (5-58%), limonene (2-37%) and terpinen-4-ol (4-27%) being the major components, although in different relative amounts during the year of collection. Benzyl benzoate (8%) and benzyl salicylate (10%) attained high relative amounts in the oils from fully developed flowers, whereas in the oils from the other plant parts their relative amounts did not exceed 1%.“
[Ferreira, Nicolau J., et al. „Pittosporum undulatum Vent. grown in Portugal: secretory structures, seasonal variation and enantiomeric composition of its essential oil.“ Flavour and fragrance journal 22.1 (2007): 1-9]