Teloschistaceae Caloplaca austrocitrina Growth type crustose Chemical results: K+ crimson Probably the most frequent of a group of species previously recorded as Caloplaca citrina Yellowish-green thallus, +/- covered by soredia. Apothecia frequent, discs yellow-orange with yellowish, sorediate margins.

Caloplaca austrocitrina
Corfe Mullen and Sturminster Marshall, Dorset. January 2014, March 2015