The lichen flora of the United States - Fink, Bruce, 1861 -1927 (University of Michigan Press, 1935)

The Lichen Genus Peltigera (Lichenized Ascomycetes) in Alberta - Provincial Museum of Alberta. Natural History Section. (Curatorial Section, Provincial Museum of Alberta, 1994)

Lichenaea Africana - Stizenberger, Ernst, 1827 -1895 (In Commission bei A. & J. Köppel, 1890)

Die lichenen Heidelbergs nach dem systeme und den bestimmungen Dr. William Nylanders - Zwackh-Holzhausen, Wilhelm Ritter von. (G. Weiss, 1883)

Lichenes Americani : quos partim in Flora Indiae Occidentalis descripsit, partim e regionibus diversis Americae obtinuit - Sturm, Jakob, 1771 -1848 (J. Sturm, 1811)

Lichenes Daniae eller Danmarks Laver - Rostrup, E. (Emil), 1831 -1907 (G.E.C. Gads, 1869)

Lichenes exotici a professore W. Nylander descripti vel recogniti : et in herbario Musei Parisiensis pro maxima parte asservati in ordine systematico dispositi sunt - Hue, A. M. (Auguste Marie), 1840 -1907 (apud G. Masson, 1892)

Lichenographia europaea reformata. : Praemittuntur lichenologiae fundamenta. Compendium in theoreticum et practicum lichenum studium - Fries, Elias, 1794 -1878 (typis Berlingianis, venditur apud E. Mauritium, Gryphiae, 1831)

Lichenographia Thomsoniana : North American lichenology in honor of John W. Thomson - Thomson, John Walter, 1913 - (Mycotaxon, Ltd, 1998)