@book {433,
	title = {Manual of the vascular plants of Texas},
	year = {1970},
	month = {1970///},
	publisher = {Texas Research Foundation},
	organization = {Texas Research Foundation},
	address = {Renner, Texas},
	author = {Correll,D.S. and Johnston,M.C.}
}
@article {381,
	title = {Boraginaceae in Flora of Guatemala - part IX, numbers 1 and 2.},
	journal = {Fieldiana, Botany},
	volume = {24},
	year = {1970},
	month = {1970///},
	pages = {111 - 167},
	author = {Gibson,D.N.}
}
