@article {6080,
	title = {Contributions to American botany},
	journal = {Proceedings of the American Academy of Arts and Sciences},
	volume = {17},
	year = {1882},
	month = {1882},
	pages = {316 - 383},
	author = {Watson, S.}
}
@article {5821,
	title = {Descriptions of new species of plants, with revisions of certain genera},
	journal = {Proc. Amer. Acad. Arts and Sciences},
	volume = {12},
	year = {1877},
	month = {1877},
	pages = {246 - 278},
	author = {Watson, S.}
}
