Fig. 1

A Map of three study sites located along gradients of temperature and precipitation in central Chile. Wood sections of K. angustifolia, B transversal (10x, bar = 500 µm), C tangential (40x, bar = 100 µm µm), and D radial (40x, bar = 100 µm). E Vessel element (2,200x, bar = 100 µm) showing the simple perforation plate and alternate inter-vessel pits