@book {20310,
	title = {Nomenclator botanicus},
	volume = {2},
	year = {1841},
	publisher = {J. G. Cotta},
	organization = {J. G. Cotta},
	edition = {2},
	address = {Stuttgart, T{\"u}bingen},
	url = {http://www.biodiversitylibrary.org/item/11567$\#$page/2/mode/1up},
	author = {Steudel, Ernst G.}
}
@book {19901,
	title = {The Botany of Captain Beechey{\textquoteright}s Voyage},
	year = {1841},
	pages = {485},
	publisher = {Henry G. Bohn},
	organization = {Henry G. Bohn},
	address = {London},
	url = {http://www.biodiversitylibrary.org/item/148263$\#$page/9/mode/1up},
	author = {Hooker, William J and Arnott, George AW}
}
