@article {246,
	title = {Crossability, Cytogenetics, and Reproductive Pathways in Rudbeckia Subgenus Rudbeckia},
	journal = {HortScience},
	volume = {44},
	year = {2009},
	pages = {44-48},
	chapter = {44},
	author = {Irene E. Palmer and Thomas G. Ranney and Nathan P. Lynch and Richard E. Bir}
}
