@article {20271,
	title = {Studies of American plants - III},
	journal = {Wrightia},
	volume = {4},
	year = {1971},
	month = {03/1971},
	pages = {153-170},
	chapter = {153},
	url = {http://www.biodiversitylibrary.org/item/15466$\#$page/166/mode/1up},
	author = {Lundell, Cyrus L.}
}
