a1 Korean Lichen Research Institute, Sunchon National University, Sunchon 540-742, Republic of Korea. Email: firstname.lastname@example.org
a2 Botany Department, The Natural History Museum, Cromwell Road, London SW7 5BD, UK.
In 1915 Hue described Lecanora (sect. Placodium) aequata growing over quartzite rocks from Busan and the Kangwon Provinces of South Korea. Later Zahlbruckner (1931) transferred it to the genus Caloplaca. Careful examination of syntype material of L. aequata lodged at The Natural History Museum, UK (BM) demonstrates that the species is conspecific with C. cinnabarina (Ach.) Zahlbr. and we henceforth synonymize it with that species.
(Accepted December 09 2010)