54 OUR NATIVE FERNS AND THEIR ALLIES 



Peronosporece. 



FARLOW (W. G.). Enumeration of the Peronosporeae of the 

 United States. In Botanical Gazette, vill, 305-315, 327-337 

 (Oct. and Nov. 1883). 



Additions to the Peronosporeae of the United States. 

 Ibid., IX, 37-40 (Mar. 1884). 



^ Perisporiacece. 



BESSEY (C. E.). The Erysiphei. In Biennial Report Iowa 

 Agric. Coll. 1877, 185-204 (1-20). 2 plates. 



BURRILL (T. J.) and EARLE (F. S.). Parasitic Fungi of Il- 

 linois. Part II, Erysipheae. In Bull. III. State Lab. Nat. Hist., 

 n, 387-433 (1877). 



Helvellacece. 



COOKE (M. C.). Mycographia, seu Icones Fungorum. 

 Vol. i. Discomycetes. 4to. London, 1879. 



Pyrenomycetes. 



TULASNE (L. and C. R.). Selecta Fungorum Carpologia. 3 

 vols. 4to. Paris, 1861, 1863, 1865. This classic work, with truly 

 elegant plates, treats also of the Perisporiacece and some other 

 ascomycetous fungi. 



SACCARDO (P. A.), BERLESE (A. N.), and VOGLINO (P.). 

 Sylloge Fungorum omnium hucusque cognitorum. Vols. I-v 

 already issued. 8vo. Padua, 1882-1887. This extensive work 

 is a compilation of all the described fungi of the world. The 

 first two volumes only treat of the Pyrenomycetes. The work 

 is a library in itself, and will stand as a monument of patient 

 and exhaustive labor.* 



Lichenes. 



WlLLEY (H.). An Introduction to the Study of the Li- 

 chens. Pamphlet. New Bedford, Mass., 1887. This will serve 



* The student of Pyrenomycetes as well as other difficult groups will need 

 to have reference to the valuable set of North American Fungi prepared by 

 J. B. Ellis. 1900 specimens are already issued, 



