Kukwa, M. & Motiejūnaitė, J. 2012. Revision of the lichen genera Cetrelia and Punctelia (Lecanorales, Ascomycota) in Lithuania with implications for their conservation. — Herzogia 25: 5 –14.
A revision of all available specimens has shown that the genus Cetrelia in Lithuania is represented by two species, C. monachorum and C. olivetorum. One specimen belonged to Punctelia jeckeri. The distribution and status of both genera in Lithuania are reviewed, distribution maps are provided, and the merits of the segregates for conservation measures are discussed. Cetrelia monachorum and Punctelia jeckeri are reported for the first time from Lithuania and from the Baltic states.