A synopsis of the North American lichens

Species plantarum

Carl Linnaeus

Trouble with Lichen

John Wyndham

Natural history of the Danish lichens

Olaf Galløe

Mosses and lichens

Nina L. Marshall

Photometric researches

Raymond Smith Dugan

The biology of lichens

Mason E. Hale

The lichen flora of the United States

Fink, Bruce

The lichen book

G. G. Nearing

Lichenes rariores et critici exsiccati

Syo Kurokawa