@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 {3035,
	title = {Neunte Wanderversammlung der botanischen Section der schlesischen Gesellschaft f{\"u}r vaterl{\"a}ndische Cultur},
	journal = {Jahresber. Schles. Ges. Vaterl. Cult..},
	volume = {57},
	year = {1879},
	month = {1879///},
	pages = {291 - 298},
	author = {Eidam, ?}
}
