Giralt, M/ Nimis, PL/ Poelt, J 1992: Studien über den Formenkreis von Caloplaca flavorubescens in Europa. - Cryptogamie, Bryologie-Lichénologie13(3): 261-273. [RLL List # 149 / Rec.# 6710] Keywords: CALOPLACA/ EUROPE
Abstract: 5 fig. [Three species and one variety are recognized in the Caloplaca flavorubescens group. New: C. aegatica sp. nov., C. alnetorum sp. nov., C. flavorubescens var. quercina (Flagey) comb. nov.]