Table 2. Summary of PGLS models of xylem tracheid characters as functions of MAT, MAP and their interaction, with models’ R2 for phylogeny and climate partitioned by the method of Ives (2019). MAT, mean annual temperature; MAP, mean annual precipitation. Multivariate models included climatic variable interactions, i.e., MAT*MAP. For tracheid length (CL) in both earlywood and latewood, the interaction was not significant, as marked by a “*” next to the AIC-value. Models with the highest R2 for each trait were bold and italicized. Acronyms of tracheid characters are according to Table 1.