@article {4099,
	title = {Caloplaca citrina and C. lactea are incorrectly understood in the British Isles},
	journal = {British Lichen Society Bulletin},
	volume = {109},
	year = {2011},
	pages = {25-30},
	author = {Powell, M. and Vondr{\'a}k, J.}
}
@article {2025,
	title = {Yellow sorediate crusts called "Caloplaca citrina" in England},
	journal = {British Lichen Society Bulletin},
	volume = {110},
	year = {2012},
	pages = {20-24},
	author = {Powell, M. and Vondr{\'a}k, J.}
}
@article {2019,
	title = {Italian balustrade at Cliveden hosts Italian lichens?},
	journal = {British Lichen Society Bulletin},
	volume = {110},
	year = {2012},
	pages = {11-14},
	author = {Powell, M. and Vondr{\'a}k, J.}
}
