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 @article{douglas_wall_xiang_hoffmann_wentworth_gray_hohmann_2011, title={Recent vicariance and the origin of the rare, edaphically specialized Sandhills lily, Lilium pyrophilum (Liliaceae): evidence from phylogenetic and coalescent analyses}, volume={20}, DOI={10.1111/j.1365-294x.2011.05151.x}, number={14}, journal={Molecular Ecology}, author={Douglas, N. A. and Wall, W. A. and Xiang, Q. Y. and Hoffmann, W. A. and Wentworth, T. R. and Gray, J. B. and Hohmann, M. G.}, year={2011}, pages={2901–2915} }
 @article{douglas_spellenberg_2010, title={A new tribal classification of Nyctaginaceae}, volume={59}, number={3}, journal={Taxon}, author={Douglas, N. and Spellenberg, R.}, year={2010}, pages={905–910} }
 @article{wall_douglas_xiang_hoffmann_wentworth_hohmann_2010, title={Evidence for range stasis during the latter Pleistocene for the Atlantic Coastal Plain endemic genus, Pyxidanthera Michaux}, volume={19}, DOI={10.1111/j.1365-294x.2010.04793.x}, number={19}, journal={Molecular Ecology}, author={Wall, W. A. and Douglas, N. A. and Xiang, Q. Y. and Hoffmann, W. A. and Wentworth, T. R. and Hohmann, M. G.}, year={2010}, pages={4302–4314} }
 @article{douglas_2008, title={Tripterocalyx carneus (Nyctaginaceae) is self-compatible}, volume={53}, DOI={10.1894/DW-117.1}, number={3}, journal={Southwestern Naturalist}, author={Douglas, N. A.}, year={2008}, pages={403–406} }