@book {34,
	title = {The World of Magnolias},
	year = {1999},
	pages = {260},
	publisher = {Timber Press},
	organization = {Timber Press},
	edition = {Third edition},
	address = {Portland},
	author = {Dorothy Callaway}
}
@article {33,
	title = {The Genera of Magnolieae},
	journal = {Bulletin of Miscellaneous Information, Royal Gardens, Kew},
	volume = {1927},
	year = {1927},
	pages = {8},
	chapter = {257},
	author = {James Dandy}
}
@article {32,
	title = {New or noteworthy plants from Colombia and Central America},
	journal = {Contributions from the United States National Herbarium},
	volume = {13},
	year = {1910},
	chapter = {93},
	url = {http://biodiversitylibrary.org/page/368046},
	author = {Henry Pittier}
}
