@article {Yuan:2008p172,
	title = {A species-level phylogenetic study of the Verbena complex (Verbenaceae) indicates two independent intergeneric chloroplast transfers},
	journal = {Molecular Phylogenetics and Evolution},
	volume = {48},
	number = {1},
	year = {2008},
	pages = {23{\textendash}33},
	author = {YW Yuan and RG OLMSTEAD}
}
