(a) Asymmetry of Bursera and Protium intercostal areas. The average asymmetry is plotted as a function of the normalized subtree degree d. Red solid line: Protium, cleaned. Red dashed line: Protium, full graph. Blue line: Bursera. Dark diamonds: random edges model. Dark circles: nested model. (b) Asymmetry of Protium intercostal segments. is plotted as a function of the normalized subtree degree d. Black dashed line: Protium, cleaned. Red, blue, green, magenta, cyan, yellow lines: Protium segments, colorcoded as in Fig. 8. Gray squares: average of segment asymmetry with standard error. (c) Adjusted cumulative size distribution, Bursera and Protium. Red solid line: Protium, cleaned. Red dashed line: Protium, full graph. Blue line: Bursera.