@article {677,
	title = {Survey of the Lichen Family Pannariaceae on the American Continent, North of Mexico},
	journal = {The Bryologist},
	volume = {103},
	number = {4},
	year = {2000},
	pages = {670-704},
	chapter = {670},
	url = {http://www.jstor.org/stable/pdfplus/3244332.pdf},
	author = {Per M. J{\o}rgensen}
}
