## 3 Results and Discussion
For example, among the monoterepenes, \(\alpha\)-pinene and 1,8-cineole were the most abundant in fresh flower oil, along with the sesquiterpene \(\beta\)-caryophyllene. In contrast, the major monoterepene found in the oil obtained from flowers stored for one year was 1,8-cineole, followed by \(\beta\)-pinene, while germacrene D was the sesquiterpene present in the highest percentage. In general, the prevalence of monoterepenoids over sesquiterpenoids in the samples of _A. millefolium_ was confirmed by the results of this investigation, in which the ratio between the two classes of compounds varied between 1:2 and 1:5. Only the white morphotype of the collection point A had a ratio of 1:1. In agreement with the above-mentioned works, among the monoterepenes, 1,8 cineole was one of the most abundant in the three _A. millefolium_ morphotypes of the four collection points, resulting in the prevalence of the pink morphotype, with the sole exception of sample C. Similarly, \(\beta\)-pinene characterized all of the considered morphotypes, being identified as the main compound in seven out of twelve samples. Its absence was recorded only for the pink morphotype of sample A. The other isomer of pineene, \(\alpha\)-pinene, was also present, but in smaller quantities and with some variability. The highest percentage values were found in the morphotypes of collection point A and predominantly in the deep pink. The poorest samples were C and B. Finally, sabinene and \(p\)-cymene were detected in marked amounts in the _A. millefolium_ morphotypes collected in point B. Smaller significant quantities were found in the morphotypes of point C and A, respectively, while they were missing in some samples of other collection points. Camphene was one of the distinctive compounds of the pink morphotype of point D and was also present in good quantities in point C (pink and white samples). Figure 2: _Cont._  
Figure 2: _Cont_. With regard to the sesquiterpenes, the most ubiquitous was \(\beta\)-caryophyllene, absent in the white morphotype of collection point B, whose intense pink morphotype, together with that of point D, was the richest, followed by the pink of the same point B. The other samples had a similar content, except for the pink morphotype in point A, which was the poorest. \(\delta\)-Cadinene, lacking only in the deep pink morphotype in point B, was, however, present in small quantities in all of the other samples, while \(\gamma\)-cadinene was detected in consistent percentages in the three morphotypes of points C and D.  
Other terpenic compounds resulted in being typical of a single geographical area of origin such as \(\gamma\)-muurolene and trans-\(p\)-menth-2-en-7-ol in the morphotypes in point A or even of a single morphotype of a single collection point such as \(\alpha\)-longiphene for the white morphotype in point D. White and deep pink morphotypes from point B were the only morphotypes with high percentages of germacene D.  
Noteworthy is the fact that the main mono- and sesquiterpenes (\(\beta\)-pinene, 1,8-cineole, sabinene, and \(\beta\)-caryophyllene) identified in the Italian morphotypes of white, pink, and deep pink _A. millefolium_ were, in general, the same as the essential oils obtained from the corresponding Lithuanian morphotypes and investigated by direct injection [20; 22; 24]. In addition, \(\beta\)-pinene was the most abundant terpene in the white morphotypes of collection points C and D, followed by the deep pink and pink morphotypes, as for the samples analyzed by [PERSON] et al. [24]. Figure 2: Heatmap of the three morphotypes of _A. millefolium_ collected in different points. (**A**) Chemical volatile composition of _A. millefolium_ morphotypes collected at point A. (**B**) Chemical volatile composition of _A. millefolium_ morphotypes collected at point B. (**C**) Chemical volatile composition of _A. millefolium_ morphotypes collected at point C. (**D**) Chemical volatile composition of _A. millefolium_ morphotypes collected at point D.  
Figure 3: _Cont_. Figure 4: _Cont_.