@article {3377,
	title = {A Monograph of the Genus Philadelphus},
	journal = {Journal of the Arnold Arboretum},
	volume = {36},
	year = {1950},
	note = {Maps},
	pages = {52-109},
	keywords = {Flora -- Classification and description, Shrubs},
	url = {http://biostor.org/cache/pdf/fa/55/58/fa555889be6075c41bd07cf578e0ff4b.pdf},
	author = {Hu, Shiu-Ying}
}
