Otte, V., Yakovchenko, L., Clerc, P. & Westberg, M. 2013. Candelariella commutata sp. nov. for C. unilocularis auct. medioeur. — an arctic-alpine lichen on calcareous substrata from the Caucasus and Europe. - Herzogia 26: 217–222.
A new Candelariella species is described and reported from the Caucasus, the Alps, Scandinavia and Novaya Zemlya. It grows on calcareous ground and partly comprises what has earlier been named C. unilocularis.