@article {510,
	title = {Phylogeny and Evolution of Ferns (Monilophytes) with a focus on the early Leptosporangiate Divergences.},
	journal = {American Journal of Botany},
	volume = {91},
	year = {2004},
	chapter = {1582},
	author = {Pryer, K.M.},
	editor = {Schuettpelz, E. and Wolf, P.G. and Schneider, H. and Smith, A.R. and Cranfill, R.}
}
@article {509,
	title = {Fern Phylogeny},
	journal = {Biology and Evolution of Ferns and Lycophytes},
	year = {2008},
	author = {Schuettpelz, E. and Pryer, K.M.}
}
