Caloplaca flavocitrina. This species was fairly recently split from Caloplaca citrina. The thallus is made up of areoles, which are frequently seen and not covered with soralia, the margins of the areolae breaking into coarser granules than in C. citrina. It is frequently fertile, the discs being fairly dark orage, and the apothecial margins either lacking any powdery soralia, but if sorediate, the granules are considerably coarser than in C. citrina. It is a common species of similar habitats to C. citrina with which it often grows. This photograph was taken at Fliquet Bay in Jersey.