@article {3180,
	title = {Phylogenetics of Dioscoreales based on combined analyses of morphological and molecular data},
	journal = {Bot. J. Linn. Soc.},
	volume = {138},
	year = {2002},
	month = {2002///},
	pages = {123 - 144},
	author = {Caddick, L. R. and Rudall, P. J. and Wilkin, P. and Hedderson, T. A. J. and Chase, M. W.}
}
@article {3173,
	title = {Yams reclassified: a recircumscription of Dioscoreaceae and Dioscoreales},
	journal = {Taxon},
	volume = {51},
	year = {2002},
	month = {2002///},
	pages = {103 - 114},
	author = {Caddick, L. R. and Wilkin, P. and Rudall, P. J. and Hedderson, A. J. and Chase, M. W.}
}
