@inbook {19781,
	title = {Historia Natural. Tomo XI. Botanica},
	booktitle = {Historia fisica, politica y natural de la isla de Cuba},
	volume = {11},
	year = {1850},
	publisher = {Arthus Bertrand},
	organization = {Arthus Bertrand},
	address = {Paris},
	url = {http://www.biodiversitylibrary.org/item/5985$\#$page/3/mode/1up},
	author = {Sagra, Ram{\'o}n de la}
}
