@article {1947,
	title = {Essential Oil Variability of Thymus-Hyemalis Growing Wild in Southeastern Spain},
	journal = {Biochemical systematics and ecology},
	volume = {23},
	year = {1995},
	note = {PT: J},
	month = {1995/06//},
	pages = {431 - 438},
	abstract = {Essential oils obtained by steam-distillation of individual samples of Thymus hyemalis were examined for variability in their volatile components by means of gas chromatography (GC) and gas chromatography-mass spectrometry (GCMS). The thymol chemotype is widespread and is found in most of the vegetal formations where Thymus hyemalis is predominant and does not interact with other species. The carvacrol chemotype is found in isolated individual plants among those containing thymol. Although the chemotypes are usually mutually exclusive, the two phenols occasionally found with similar quantities in the same plant. The linalool chemotype has not previously been described for Thymus hyemalis. Other nonphenolic compounds (1,8-cineole, borneol, cc-pinene) are present in low to medium percentages that reflect localized interactions with other species of thyme (Thymus vulgaris, Thymus baeticus) that sometimes produce hybridized or introgressive, morphologically distinguishable individuals. This chemical variability is analyzed by Principal Component Analysis (PCA) and Cluster Analysis (CA), a closely-related phenolic group of samples being revealed separated from less well represented non-phenolic chemotypes or mixed chemotypes. Multidimensional Scaling Analysis (MDS) based on percentage concentration was used to show the relationships between the most important components of the essential oil, the opposite orientation of vectors that represent phenolic compounds (and their precursors) and linalool, being of note. The data set presents positive correlation between camphor and altitude.},
	author = {Saez, F}
}
@article {1948,
	title = {Volatile oil variability in Thymus serpylloides ssp. gadorensis growing wild in Southeastern spain},
	journal = {Biochemical Systematics and Ecology},
	volume = {29},
	year = {2001},
	note = {From Duplicate 1 (                           Volatile oil variability in Thymus serpylloides ssp. gadorensis growing wild in Southeastern spain                         - Saez, F )                
},
	month = {2001/02//},
	pages = {189 - 198},
	address = {Affiliation: Geology Department, Fac. of Math. and Natural Sciences, Bergen University, Allégaten 41, 5007-Bergen, Norway},
	abstract = {Volatile oils from single plants of Thymus serpylloides ssp. gadorensis were collected from Southeastern Spain and studied to check for chemical variability using gas chromatography (GC) and gas chromatography-mass spectrometry (GC-MS). Many of the samples showed a phenolic chemotype, while another important group had significant levels of linalool. Geraniol, myrcene, caryophyllene oxide, terpinen-4-o1 and 1,8-cineole were commonly present. Principal Component Analysis (PCA) and Cluster Analysis (CA) of this chemical variability separated two groups of plants characterized by either phenols or linalool, and an isolated third type with geraniol. A few samples were found to have both phenolic and non-phenolic compounds in high quantities, thus showing a mixed chemotype. Multidimensional scaling analysis (MDS) of the percentage concentration for each component of the essential oil showed that thymol, linalool, 1,8-cineole, borneol and geraniol have clear divergent vectors. {\textcopyright} 2001 Elsevier Science Ltd.},
	keywords = {caryophyllene oxide, Essential oil, Geraniol, Lamiaceae, Linalool, Myrcene, Thymol, Thymus serpylloides ssp. gadorensis},
	url = {http://www.scopus.com/scopus/inward/record.url?eid=2-s2.0-0035177231\&partnerID=40\&rel=R6.5.0},
	author = {Saez, F}
}
