@article {412,
	title = {Rhodora; Journal of the New England Botanical Club. Cambridge, MA},
	volume = {45(539)},
	year = {1943},
	author = {Fernald}
}
@article {138,
	title = {Bull. Torrey Bot. Club},
	volume = {70},
	year = {1943},
	author = {Cronquist}
}
