Table 2.

Quantitative limitation analysis of the leaf mesophyll conductance to CO₂ (g_m) for D. antarctica and C. quitensis from King George (KGI) and Lagotellerie Island (LAG) due to different anatomical components of the diffusion pathway: intercellular spaces (l_ias), cell wall (l_cw), plasmalemma (l_pl), and inside the cell (l_{cel, tot})

	D. antarctica		C. quitensis
	KGI	LAG	KGI	LAG
l ias (%)	1.1 ± 0.1 a	1.7 ± 0.2 a	2.5 ± 0.4 a	4.6 ± 0.1 b
l cw (%)	34.4 ± 1.3 a	27.4 ± 2.1 b	35.4 ± 5.4 a	49.5 ± 6.2 a
l pl (%)	2.3 ± 0.1 a	2.3 ± 0.2 a	2.0 ± 0.3 a	3.3 ± 0.1 b
l cel, tot (%)	62.3 ± 1.5 a	68.4 ± 2.1 a	59.8 ± 5.4 a	42.5 ± 6.1 b

Values are means ± SE (n=4–10).

Different letters indicate statistically significant differences between populations for each species (P<0.05).