@article {4358,
	title = {The Lecanactis grumulosa group (Opegraphaceae) in the Mediterranean region},
	journal = {Plant Systematics and Evolution},
	volume = {187},
	year = {1993},
	pages = {103-114},
	issn = {0378-2697},
	doi = {10.1007/BF00994093},
	url = {http://link.springer.com/10.1007/BF00994093},
	author = {Egea, J.M. and Torrente, P. and Manrique, E.}
}
