Fig. 6

Mean vulnerability curves for three species showing the percentage of loss of hydraulic conductivity (%) in the xylem as a function of xylem pressure (Mpa). Open circles represent raw data; shaded bands represent standard errors; and a 50% loss in conductivity is indicated by a horizontal dotted line for Gustavia hexapetala (red; n = 3), the most resistant species in our dataset, Chrysophyllum sanguinolentum (blue; n = 5), an intermediately-resistant species, and Lecythis poiteaui (green; n = 4), the least resistant species