Tinkturenpresse

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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.  [[https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:684734-1|Kew]] [[https://flora.sa.gov.au/taxon/49362-pittosporum-undulatum|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." [[https://en.wikipedia.org/wiki/Pittosporum_undulatum|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.jpg|sabinene}} \\ sabinene |{{:limonene.jpg|limonene}} \\ limonene |{{:benzylsalicylate.jpg|benzyl salicylate}} \\ 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%." \\
Other minor components of the flower oils were e.g. α-/β-phellandrene, cis/trans sabinene hydrate, linalool, nerol, citronellol, geraniol, hexyl 2/3-methylbutyrate and phenylethyl salicylate. \\
[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]


{{:pittosporum_und.jpg|Pittosporum undulatum}} \\
Pittosporum undulatum, California, USA (2026) (c) Christine Rudman [[https://creativecommons.org/licenses/by-sa/4.0/|CC BY-SA 4.0]] [[https://www.inaturalist.org/observations?taxon_id=51594|inaturalist.org]]