@article {ward_keys_1977,
	title = {Keys to the flora of Florida {\textendash} 3, Boraginaceae},
	journal = {Phytologia},
	volume = {36},
	number = {4},
	year = {1977},
	pages = {309{\textendash}323},
	url = {http://www.biodiversitylibrary.org/page/13783811},
	author = {Ward, D. F. and Fantz, P. R.}
}
@book {473,
	title = {Endemismos canarios. Inventario de las plantas vasculares end{\'e}micas de la Provincia de Las Palmas},
	year = {1977},
	month = {1977///},
	publisher = {Ministerio de Agricultura, Instituto Nacional para la Conservaci{\'o}n de la Naturaleza},
	organization = {Ministerio de Agricultura, Instituto Nacional para la Conservaci{\'o}n de la Naturaleza},
	address = {Madrid},
	author = {Kunkel, G.}
}
