@article {653,
	title = {The Lichen Family Heppiaceae in North America},
	journal = {Annals of the Missouri Botanical Garden},
	volume = {57},
	number = {2},
	year = {1970},
	pages = {158-209},
	chapter = {158},
	url = {http://www.jstor.org/stable/pdfplus/2395109.pdf},
	author = {Wetmore, Clifford M.}
}
