@book {5816,
	title = {Manual of the botany of the northern United States: including Virginia, Kentucky, and all east of the Mississippi},
	year = {1856},
	month = {1856},
	pages = {1 - 739},
	publisher = {George P. Putnam \& Co.},
	organization = {George P. Putnam \& Co.},
	address = {New York},
	author = {Gray, A.}
}
@book {5672,
	title = {Museum Botanicum Lugduno-Batavum},
	volume = {2},
	year = {1856},
	month = {1856},
	pages = {1 - 256},
	publisher = {E. J. Brill},
	organization = {E. J. Brill},
	address = {Lugduno-Batavum},
	author = {Blume, C. L.}
}
