@article {6901,
	title = {Natural hybridization in Ipomoea (Convolvulaceae)},
	journal = {Amer. J. Bot.},
	volume = {60},
	year = {1973},
	month = {1973///},
	pages = {33 - 34},
	author = {Abel, W.E. and Austin, D.F.}
}
