Model Intercept (95% CI) Slope (95% CI) r2 (P) Slope.test= 1 r (P) Y~X+ Leaf habit (P) Y~X+ Leaf habit (P) Y~X + Growth form (P) Y~X + Growth form (P) Y/X – RGR (P) Figures
Slope homogeneity Elevation homogeneity Slope homogeneity Elevation homogeneity
Plant total stomatal area ~ Stem xylem area
2.52 (0.50, 4.55)
1.29 (1.14, 1.47)
0.81***
0.51***
ns
ns
ns
ns
ns
Fig. 2a
Plant total stomatal area ~ Stem xylem conductance area
3.76 (1.70,5.82)
1.22 (1.06, 1.41)
0.77***
0.39**
ns
ns
ns
ns
ns
Fig. 2b
Leaf total stomatal area ~ Midvein xylem area
4.78 (3.16, 6.39)
1.30 (1.13, 1.49)
0.79***
0.50***
ns
ns
ns
ns
ns
Fig. 3
Leaf total stomatal number ~ Midvein xylem area
-1.48 (-3.09, 0.13)
1.32 (1.16, 1.51)
0.79***
0.53***
ns
ns
ns
ns
ns
Fig. 4a
Leaf total stomatal number ~ Average leaf area
5.38 (5.02, 5.74)
0.97 (0.91, 1.04)
0.94***
-0.12ns
ns
ns
**
ns
Stomatal cell area ~ Midvein xylem area
8.08 (7.47, 8.68)
-0.22 (-0.30, 0.17)
0.01 ns
Fig. 4b
Stomatal cell area ~ Average leaf area
6.93 (6.66, 7.20)
-0.16 (-0.22,-0.13)
0.006ns
Plant minor vessel number ~ Stem xylem area
-2.73 (-3.86, -1.61)
0.88 (0.79, 0.98)
0.87***
ns
**
ns
**
**
Fig. 4c
Plant minor vessel number ~ Total leaf area
3.17 (2.24, 4.10)
0.69 (0.57, 0.83)
0.62***
ns
**
ns
ns
**
Minor vessel area ~ Stem xylem area
4.91 (4.08, 5.74)
-0.23 (-0.31, -0.17)
0.003ns
Fig. 4d
Minor vessel area ~ Total leaf area
3.46 (3.04, 3.88)
-0.19 (-0.25, -0.14)
0.01ns
Plant total stomatal number ~ Plant minor vessel number
0.19 (-2.10, 2.47)
1.51 (1.25, 1.82)
0.62***
ns
ns
ns
ns
Fig. 5a
Stomatal cell area ~ Minor vessel area
3.48 (2.71, 4.24)
1.22 (0.91, 1.62)
0.05ns
Fig. 5b