Stasis and convergence characterize morphological evolution in eupolypod II ferns.

@article{Sundue2014StasisAC,
  title={Stasis and convergence characterize morphological evolution in eupolypod II ferns.},
  author={Michael A. Sundue and Carl J. Rothfels},
  journal={Annals of botany},
  year={2014},
  volume={113 1},
  pages={
          35-54
        }
}
BACKGROUND AND AIMS Patterns of morphological evolution at levels above family rank remain underexplored in the ferns. The present study seeks to address this gap through analysis of 79 morphological characters for 81 taxa, including representatives of all ten families of eupolypod II ferns. Recent molecular phylogenetic studies demonstrate that the evolution of the large eupolypod II clade (which includes nearly one-third of extant fern species) features unexpected patterns. The traditional… 

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