@inbook {4241,
	title = {Gyalecta},
	booktitle = {Lichens of Great Britain and Ireland},
	year = {2009},
	pages = {417-421},
	publisher = {British Lichen Society},
	organization = {British Lichen Society},
	address = {London},
	author = {Gilbert, O.L. and James, P.W. and Woods, R.G.}
}
