Abstract: In order to identified the volatile components in various parts of new varieties of Hemerocallis citrina Baroni (jinwawa),the sundried flower and freeze-dried samples of different parts (flowering,flower bud,root,stem and leaf) of the variety of daylily were used by headspace solid-phase microextraction combined with gas chromatography-mass spectrometry（HS-SPME-GC-MS）.The results showed that 110 compounds were identified from five parts of H. citrina,among which 60 compounds from the sundried flower part,38 compounds from the flowering part,24 compounds from the flower bud part,37 compounds were identified from the root part,26 compounds from the leaf part and 24 compounds from the stem part.All the parts have their special volatile components,among which the sundried flower part,root part and flowering part have great differences in volatile components,all the parts also have the same volatile components,among which 3-furanmethanol,linalool and hexanoic acid are the major components in all the parts.

Key words: Hemerocallis citrina Baroni, volatile composition, HS-SPME, GC-MS