| Abstract
| - Headspace analyses of pollen, whole flowerheads, ligulate and tubular florets, flower buds, involucralbracts, and leaves have been performed on the food plant Chrysanthemum coronarium L.(Asteraceae). The analyses permitted differences in the pattern of volatiles emitted by the differentfloral parts to be observed and the site and phenological stage of emission of these chemicals to beverified. Camphor and cis-chrysanthenyl acetate were emitted mainly by ligulate and tubular florets;the production of myrcene and (Z)-ocimene was higher in the flower buds, whereas β-caryophyllene,(E,E)-α-farnesene, and (E)-β-farnesene seemed attributable mainly to the involucral bracts. The leavesshowed a quite different volatile profile, with (Z)-ocimene as the main constituent. Pollen showed acompletely different composition of its volatiles, with perilla aldehyde, cis-chrysanthenyl acetate, andcamphor among the principal compounds; many carbonylic compounds and linear hydrocarbons havebeen detected exclusively in pollen. Furthermore, the essential oils obtained from flowerheads andleaves have been studied. These samples showed mainly quantitative differences. Camphor (22.1%)and cis-chrysanthenyl acetate (19.9%) were the main constituents of the oil from flowers, whereasthe oil from the leaves contained mainly (Z)-ocimene (45.4%) and myrcene (28.2%). Keywords: Chrysanthemum coronarium; garland; Asteraceae; pollen; flower; leaves; volatiles; SPME;essential oil
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