Fig. 3 in Headspace GC-MS analysis of differences in intra- and interspecific Terpene profiles of Picea pungens Engelm. and P. abies (L.) Karst

Fig. 3. Sample GC traces of blue spruce (B1), Norway spruce (N1), and cedar of Lebanon (C1). Compounds were identified by retention indices, mass spectra (NIST library), and reference comparisons. Identified compounds are: (1) tricyclene, (2) α-pinene, (3) camphene, (4) sabinene, (5) β-pinene, (6) β-myrcene, (7) 3-carene, (8) limonene, (9) β-phellandrene (coeluting with limonene), (10) 1,8-cineole, (11) γ-terpinene, (12) terpinolene, (13) camphor, (14) α-terpineol, and (15) β-caryophyllene.