@article {5762,
	title = {Contributions to the botany of North America},
	journal = {Proceedings of the American Academy of Arts and Sciences},
	volume = {12},
	year = {1876},
	month = {1876},
	pages = {51 - 85},
	author = {Gray, A.}
}
@article {4097,
	title = {Botanical contributions},
	journal = {Proceedings of the American Academy of Arts and Sciences},
	volume = {15},
	year = {1879},
	month = {1879///},
	pages = {25 - 52},
	author = {Gray, A.}
}
@article {3415,
	title = {Characters of new plants of California and elsewhere, principally of those collected by H. N. Bolander in the State Geological Survey},
	journal = {Proceedings of the American Academy of Arts and Sciences},
	volume = {7},
	year = {1868},
	month = {1868///},
	pages = {327 - 401},
	author = {Gray, A.}
}
