A total of 438 lichen-forming taxa have been reported in the literature from Nebraska. Based on current taxonomic concepts and synonymy we recognized 312 lichen species in this catalog for the state. Published reports oflichen species citing specific collection localities are listed from only 31 counties. These records are concentrated in eastern Nebraska with the largest numbers of species listed from localities in Cass, Lancaster, Saunders, Richardson, and Sarpy counties
Egan, Robert S.; Witt, Richard C.; Peck, Yolanda E.; Goeden, John P.; and Cherney, Teresa L., "A Preliminary Catalog of the Lichen-Forming Fungi of Nebraska" (1995). Biology Faculty Publications. 39.