Table 1 Summary of percentage of variance explained by ANOVAs performed for each variable separately: Leaf area (LA), length–width ratio (LW), index of lobation (ILB), leaf mass per area (LMA) and altogether (PC1 scores from FAMD). Each row represents a separate ANOVA. All models include all factors: macroclimate, subgenus and section nested in subgenus. Number of asterisks represents the level of significance (P < 0.001 ***, P < 0.01 **, P < 0.05 *). The proportion of variance is calculated dividing the sum squares for each factor by the total sum of squares

From: Oak leaf morphology may be more strongly shaped by climate than by phylogeny