Table I. θ of water (θ_w), glycerol (θ_g), and diiodomethane (θ_d) with the adaxial and abaxial surface of young and mature holm oak leaves.

Leaf Age	θw		θg		θd
	Adaxial	Abaxial	Adaxial	Abaxial	Adaxial	Abaxial
	°
Young	40.7 ± 3.8	130.1 ± 6.5	50.2 ± 5.1	141.4 ± 4.4	56.6 ± 4.9	128.4 ± 6.5
	91.1 ± 6.0s		143.5 ± 6.0s
Mature	55.5 ± 5.1	134.3 ± 10.1	68.6 ± 5.9	142.5 ± 3.9	59.1 ± 4.1	119.3 ± 10.2

^aInitial θ of water and glycerol when deposited onto the adaxial, young leaf surfaces. The remaining θ values were recorded when the drops were stable and did not vary when deposited on to the surfaces.