@article {729,
	title = {New Lichens and Other Additions to the Lichen Flora of the Philippine Islands},
	journal = {The Bryologist},
	volume = {54},
	number = {4},
	year = {1951},
	pages = {283-290},
	url = {http://www.jstor.org/stable/pdfplus/3240007.pdf},
	author = {Herre, Albert W.C.T.}
}
@article {751,
	title = {The Lichens of Bermuda},
	journal = {Bulletin of the Torrey Botanical Club},
	volume = {43},
	number = {3},
	year = {1916},
	month = {03/1916},
	pages = {145-160},
	url = {http://www.jstor.org/stable/pdfplus/2479626.pdf},
	author = {Riddle, Lincoln Ware}
}
@article {728,
	title = {Lichens: Collema and Leptogium},
	journal = {The Bryologist},
	volume = {7},
	number = {3},
	year = {1904},
	pages = {46-48},
	url = {http://www.jstor.org/stable/pdfplus/3238276.pdf},
	author = {Carolyn W. Harris}
}
@book {52,
	title = {The Lichen Genus Collema with Special Reference to the Extra-European Species},
	year = {1974},
	publisher = {ofters tryckeri ab, {\"O}stervala},
	organization = {ofters tryckeri ab, {\"O}stervala},
	address = {Stockholm},
	issn = {91-554-0250-x},
	author = {Degelius, Gunnar}
}
@book {47,
	title = {The Lichen Flora of Great Britian and Ireland},
	year = {1992},
	publisher = {Natural History Museum Publications},
	organization = {Natural History Museum Publications},
	address = {London},
	author = {O.W. Purvis and D.M. Moore and B.J. Coppins and D.L. Hawksworth and P.W. James}
}
@article {679,
	title = {The Macrolichen Flora of South Korea},
	journal = {The Bryologist},
	volume = {93},
	number = {2},
	year = {1990},
	pages = {105-160},
	url = {http://www.jstor.org/stable/pdfplus/3243619.pdf},
	author = {Park, Yun Sil}
}
@book {1153,
	title = {Macrolichens of the Pacific Northwest},
	year = {1997},
	publisher = {Oregon State University Press},
	organization = {Oregon State University Press},
	address = {Corvallis},
	author = {Bruce McCune and Linda Geiser}
}
@book {1453,
	title = {Lichens},
	series = {The new naturalist},
	year = {2000},
	pages = {288},
	publisher = {HarperCollins},
	organization = {HarperCollins},
	address = {London},
	isbn = {0002200821},
	author = {Oliver Gilbert}
}
@article {54,
	title = {The Epiphytic Lichens on Quercus in Sardinia (Italy) and Their Value as Ecological Indicators},
	journal = {Englera},
	volume = {24},
	year = {2002},
	pages = {3-457},
	url = {http://www.jstor.org/stable/3776783},
	author = {Zedda, Luciana}
}
@book {53,
	title = {Lichens of North America},
	year = {2001},
	publisher = {Yale University Press},
	organization = {Yale University Press},
	issn = {0300082495},
	author = {Brodo, Irwin M and Sylvia Duran Sharnoff and Susan Laurie-Bourque and Stephen Sharnoff}
}
@article {68,
	title = {Cyanolichens and conifers: implications for global conservation},
	journal = {For. Snow Landsc. Res.},
	volume = {75},
	number = {3},
	year = {2000},
	pages = {303-318},
	chapter = {303},
	url = {http://www.cmiae.org/_PDF/reference149.pdf},
	author = {Trevor Goward and Andr{\'e} Arsenault}
}
@article {70,
	title = {Heuristic model for identifying the habitats of <em>Erioderma pedicellatum</em> and other rare cyanolichens in Nova Scotia, Canada},
	journal = {The Bryologist},
	volume = {111},
	number = {4},
	year = {2008},
	pages = {650-658},
	chapter = {650},
	author = {Robert P. Cameron and Thomas Neily}
}
@article {732,
	title = {Index Fungorum [taxonomy information]},
	year = {2008},
	url = {http://www.indexfungorum.org/Names/Names.asp}
}
@book {1154,
	title = {The Macrolichens of New England},
	series = {Memoirs of the New York Botanical Garden},
	volume = {96},
	year = {2007},
	publisher = {The New York Botanical Garden Press},
	organization = {The New York Botanical Garden Press},
	address = {China},
	author = {James W. Hinds and Patricia L. Hinds}
}
