Figure 4.

(A) Natural logarithm of area (cm²) vs. natural logarithm of total major vein length. Total major vein length (cm) was calculated by combining the length of the proximal, distal, and midvein. (B) Residuals from the model of natural logarithm of area (cm²) vs natural logarithm of total major vein length, as indicated in panel A, vs. distal lobing. In both panels, each leaf (n = 2632) is plotted with the color of the point indicating the distal lobing value. The natural log of leaf area varies significantly as a function of the natural log of total major vein length, and residuals from that model vary significantly as a function of distal lobing. The adjusted R ² for each model is indicated on the plots.