Table 2. Mean content of terpenes (PPM) (±1 SE) of lodgepole and jack pine trees.

Terpene	P-valuea	Mean content (ppm)
		Lodgepole pine	Jack pine
Borneol	P < 0.001	14.67 ± 3.18	4.18 ± 1.64
Bornyl acetate	P = 0.004	45.95 ± 12.55	42.52 ± 3.41
Camphene	P < 0.001	88.47 ± 8.30	30.32 ± 4.51
Camphor	P = 0.041	6.69 ± 1.93	2.21 ± 0.85
3-Carene	P < 0.001	1738.14 ± 321.80	226.99 ± 44.95
α-Caryophyllene	P < 0.001	16.02 ± 3.32	5.47 ± 2.24
α-Copaene	P < 0.001	13.70 ± 2.68	1.09 ± 0.78
α-Cubebene	P = 0.273	2.50 ± 1.46	0.79 ± 0.63
p-Cymene	P < 0.001	32.06 ± 5.11	2.90 ± 1.71
α-Humulene	P < 0.001	42.35 ± 7.30	3.19 ± 1.42
Limonene	P < 0.001	848.64 ± 164.35	203.25 ± 48.89
Linalool	P = 0.220	64.73 ± 9.02	117.74 ± 16.68
Myrcene	P < 0.001	435.45 ± 45.48	100.18 ± 15.71
Ocimene	P < 0.001	31.75 ± 8.21	0.00 ± 0.00
α-Phellandrene	P < 0.001	175.77 ± 17.93	1.62 ± 1.38
β-Phellandrene	P < 0.001	9096.72 ± 960.59	157.21 ± 40.39
α-Pinene	P < 0.001	949.81 ± 132.72	2518.14 ± 328.27
β-Pinene	P < 0.001	921.46 ± 127.02	283.98 ± 43.68
Pulegone	P = 0.039	30.21 ± 6.81	107.13 ± 22.81
Sabinene	P < 0.001	141.94 ± 17.74	7.12 ± 2.17
α-Terpinene	P < 0.001	15.39 ± 2.95	0.00 ± 0.00
γ-Terpinene	P < 0.001	23.81 ± 5.42	0.00 ± 0.00
Terpineol	P < 0.001	53.64 ± 8.55	16.50 ± 6.59
Terpinolene	P < 0.001	352.79 ± 48.44	47.07 ± 13.04
α-Thujone	P = 0.122	2.25 ± 0.84	1.85 ± 1.20
Total	P < 0.001	15144.92 ± 1463.47	3881.44 ± 395.26

^aDifferences between species as determined by a Wilcoxon rank sum test (α = 0.05, significant differences in bold).