Fig. 1

A 50% majority rule consensus tree summarising Bayesian MCMC analyses of Tordylieae and outgroups using MrBayes. Scatter plot represents correlation between median ages of corresponding nodes in primary (abscissa axis) and secondary (ordinate axis) calibrated trees. Solid and dashed violet lines represent major axis with 95% confidence interval compared to the blue line expected under assumption of no systematic bias in age estimations. A, B, and C are calibration points. Violet bars show 95% highest posterior density intervals for age distributions. Crown ages of selected clades are provided and marked with blue (woody), green (herbaceous), or black (woody and herbaceous life forms) dots. For clarity, only posterior probability values lower than 1.0 are shown. Woody (chamaephytic) species are in boldface, species considered for wood anatomy are marked with asterisks. The time scale is in million years ago. Major clades are bracketed. CDN stands for Capnophyllum–Dasispermum–Notobubon clade