@article {255,
	title = {Potamogeton pectinatus L. x P. vaginatus Turcz. (P. x bottnicus Hagstr.), a newly identified hybrid in the British Isles},
	journal = {Watsonia},
	volume = {22},
	year = {1998},
	pages = {69-82},
	author = {Preston, C.D. and Hollingsworth, P.M. and Gornall, R.J.}
}
