@article {4371,
	title = {rDNA ITS and β-tubulin gene sequence analyses reveal two monophyletic groups within the cosmopolitan lichen Parmelia saxatilis},
	journal = {Mycological Research},
	volume = {106},
	year = {2002},
	pages = {788-795},
	issn = {09537562},
	doi = {10.1017/S095375620200610X},
	url = {http://linkinghub.elsevier.com/retrieve/pii/S0953756208601173},
	author = {Crespo, A. and Molina, M. Carmen and Blanco, O. and Schroeter, B. and Sancho, L.G. and Hawksworth, D.L.}
}
@article {2492,
	title = {Ribosomal DNA and beta-tubulin data do not support the separation of the lichens Usnea florida and U. subfloridana as distinct specie},
	journal = {Mycological Research},
	volume = {106},
	year = {2002},
	pages = {412-418},
	doi = {10.1017/S0953756202005},
	author = {Articus, K. and Mattson, J.-E. and Tibell, L. and Grube, M. and Wedin, M.}
}
