Fig. 8.

Relationship between the first two principal components (PC1 vs. PC2) of the principal component analysis (PCA) computed on the functional traits obtained for the seven studied Q. ilex provenances. Variables: leaf area (LA), major vein density (MVD), leaf area ratio (LAR), relative water content at the turgor loss point (RWC_TLP), water potential at the turgor loss point (Ψ_TLP), osmotic potential at full turgor (Π₀), the maximum bulk modulus of elasticity (ε_max), specific hydraulic conductivity (K_S), leaf specific conductivity (LSC) and the 50 % loss of hydraulic conductivity (PLC₅₀). Morphotypes are as indicated in the key.