@book{8283,
	author = {Tidestrom, Ivar,},
	title = {Botrychium virginianum and its forms.},
	publisher = {Govt. print. off.,},
	year = {1913.},
	series = {Smithsonian institution.  United States national museum.  Contributions from the United States national herbarium.},
	address = {Washington,},
	note = {"Bulletin of the United States national museum.  Issued December 29, 1913."}
}