Lichenographia universalis. : In qua lichenes omnes detectos, adiectis observationibus et figuris horum vegetabilium naturam et organorum carpomorphorum structuram illustrantibus, ad genera, species, varietates - Acharius, Erik, 1757 -1819 (Apud Iust. Frid. Danckwerts, 1810)

Lichenographiae svecicae prodromus - Acharius, Erik, 1757 -1819 (D.G. Björn, 1798)

Lichens - Smith, Annie Lorrain, 1854 - (Univ. Press, 1921)

Lichens (29) : management recommendations for survey and manage - United States. Bureau of Land Management. (U.S. Department of Agriculture, Forest Service, 2000)

Lichens de la région d'Ottawa - National Museum of Natural Sciences (Canada) (Musée national des sciences naturelles, 1990)

Lichens du Mexique (états de Puebla et Michoacán) recueillis par le Frère G. Arsène Brouard. 1er supplément - Bouly de Lesdain, Maurice, 1869 -1965 (s.n, 1922)

Les lichens : étude sur l'anatomie, la physiologie et la morphologie de l'organisme lichénique - Acloque, A. (Alexandre), 1871 -1908 (J.B. Baillière et fils, 1893)

The lichens of Alaska - Cummings, Clara E. (Clara Eaton), 1855 -1906 (Smithsonian Institution, 1910)

Lichens of California, Oregon, and the Rocky mountains : so far as yet known : with an appendix - Tuckerman, Edward, 1817 -1886 (J.S. & C. Adams, 1866)

The lichens of Long Island, New York: a vegetational and floristic analysis - Brodo, Irwin M. (Irwin Murray), 1935 - (University of the State of New York, 1968)