Phylogenetic analysis of monilophyte plastid genes. The trees shown were generated by maximum likelihood (left) or Bayesian (right) inference of a data set containing 49 plastid protein genes from 32 vascular plants. Thick branches represent clades with 100% bootstrap support or >0.99 posterior probability. Lower support values are indicated near each node. Trees were rooted on lycophytes. Both trees were drawn to the same scale shown at bottom right.