NOTE TO STUDENTS 



The books and papers consulted in the preparation of this 

 work are all cited in the text. Students are especially referred 

 to the following important works on Lichenology : — 



Hepp, p., Flechten Europas. Abbildungen und Beschreibung der Sporen^ 

 Nos. 1-962. Zuricb, 1853-67. 



Nylandeb, W., Synopsis Lichenum. Paris, 1858-60. (Incomplete.) 



Fries, Tn. M., Lichenographia Scandinavica. Upsala, 1871-4. 



Sydow, p., Die Flechten Deutschlands. Berlin, 1887, 



BoiSTEL, A., Nouvelle Flore des Lichens. Paris, 1896. 



Schneider, A., A Text-Book of General Lichenology. Binghampton,. 

 New York, 1897. 



Olivier, H., Expose Systematique et Description des Lichens de I'Ouest 

 et du Nord-Ouest de la France. Paris, 1897. 



FuNFSTucK, M., & A. Zahlbruckner, in Engler & Prantl, Die Natiirlichen 

 Pflanzenfamilien 1, 1*. 1898-1907. 



Jatta, a., Sylloge Lichenum Italicorum. Trani, 1900. 



Jatta, a., Flora Italica Cryptogama, Pars III., Lichenes. Rocca S. 

 Casciano, 1909-11. (In progress.) 



