@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.}
}
@book {472,
	title = {Flora de Gran Canaria, tomo 1},
	year = {1974},
	month = {1974///},
	publisher = {Ediciones del Excmo. Cabildo Insular de Gran Canaria},
	organization = {Ediciones del Excmo. Cabildo Insular de Gran Canaria},
	address = {Las Palmas},
	author = {Kunkel, G.}
}
