@article {3387,
	title = {Plant Notes. <i>Calystegia</i>},
	journal = {Proc. Soc. Brit. Isles},
	volume = {2},
	number = {22-23},
	year = {1956},
	keywords = {Calystegia sepium, Calystegia sylvestris},
	author = {Walters, S. M. and Webb, D. A.}
}
