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Chimonanthus praecox (L.) Link - Calycanthaceae
蜡梅 la mei (chin.), wintersweet, Japanese allspice, Winterblüte
„Shrubs or small trees, 3-13 m tall, deciduous or sometimes with persistent leaves… This species is cultivated throughout most of China as well as in other temperate areas of the world as a decorative plant, particularly for its sweetly fragrant flowers. The leaves, roots, flowers, and seeds are used medicinally. Because of its extensive and long cultivation in China, some of the reported distribution is uncertain as to it actually being native.“ http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=200008496
„Its strongly scented pendent flowers, produced in winter on bare stems, have 15-21 yellow tepals, the inner ones usually with purplish red pigments.“ https://en.wikipedia.org/wiki/Chimonanthus_praecox
„A novel rapid, simple and solvent-free method was developed for determination of the volatile compounds from the flowers of Chimonanthus praecox Link using headspace solid-phase microextraction (HS-SPME) and gas chromatography-mass spectrometry (GC-MS). The SPME conditions were firstly optimized and applied to sampling of the volatile compounds emitted from living Chimonanthus praecox L. flowers and excised Chimonanthus
praecox L. flowers. Thirty-one compounds emitted from living flowers were identified for the first time, which mainly included 4-methyl-1,3-pentadiene (2.0%), α-phellandrene (4.7%), benzyl methanol (11.1%), trans-linalool oxide (furanyl ring) (5.3%), α-linalool (36.0%), methyl salicylate (24.5%) and acetic acid benzyl ester (5.9%). Comparing the emission from living flowers and excised flowers, twenty-eight compounds were found to be detected in the two emissions, and three compounds, n-pentadecane, n-cetane and n-heptadecane, were only
found in the emission from the living flowers, which shows that they might be biomarker compounds.“
[Rapid Determination of Volatile Compounds Emitted from Chimonanthus praecox Flowers by HS-SPME-GC-MS, Chunhui Deng, Guoxin Song, Yaoming Hu, Z. Naturforsch. 59c, 2004, 636-640] http://www.znaturforsch.com/ac/v59c/s59c0636.pdf