Frisch, Andreas, Klaus Kalb & Martin Grube. 2006. Contributions towards a new systematics of the lichen family Thelotremataceae. Bibliotheca Lichenologica 92: 1–556. J. Cramer in der Gebrüder Borntraeger Verlagsbuchhandlung, Berlin, Stuttgart, Germany. [ISBN 3-443-58071–8] Price € 88. Available from: http://www.schweizerbart.de.