@article {643,
	title = {A correlation of the taxonomy and the floral anatomy of certain of the Boraginaceae},
	journal = {American Journal of Botany},
	volume = {24},
	year = {1937},
	pages = {433{\textendash}444},
	doi = {10.2307/2436428},
	url = {http://www.jstor.org/stable/2436428},
	author = {Lawrence, Julia Ruth}
}
@article {633,
	title = {Phylogeny of Lamiidae},
	journal = {American Journal of Botany},
	volume = {101},
	year = {2014},
	pages = {287{\textendash}299},
	issn = {0002-9122, 1537-2197},
	doi = {10.3732/ajb.1300394},
	url = {http://www.amjbot.org/content/101/2/287},
	author = {Refulio-Rodriguez, Nancy F. and Olmstead, Richard G.}
}
@article {493,
	title = {A palynological investigation of genus Tournefortia (Boraginaceae)},
	journal = {American Journal of Botany},
	volume = {61},
	year = {1974},
	month = {1974///},
	pages = {1021 - 1036},
	isbn = {0002-9122},
	url = {://A1974U536900011},
	author = {Nowicke, J. W. and Skvarla, J. J.}
}
@article {389,
	title = {A systematic analysis of Heliotropium, Tournefortia, and allied taxa of the Heliotropiaceae (Boraginales) based on ITS1 sequences and morphological data},
	journal = {American Journal of Botany},
	volume = {89},
	year = {2002},
	month = {2002///},
	pages = {287 - 295},
	url = {http://www.amjbot.org/content/89/2/287},
	author = {Diane, N. and F{\"o}rther, H. and Hilger, Hartmut H.}
}
