Poelt, J/ Hafellner, J 1980: Zur Verbreitung und Biologie der Flechte Caloplaca anularis. - Studia Geobotanica1: 223-229. [RLL List # 114-67 / Rec.# 14733] Keywords: CALOPLACA/ ALPS/ BALKAN PENINSULA
Abstract: [This species is reported for the first time from the Eastern Alps and the Balkan peninsula. The rosette-like growth form is apparently related to the deposition of excreted material in the medulla and hypothallus.]