344 



Mycologia 



Fulton, H. R. Decline of Pseudomonas citri in the soil. Jour. 



Agr. Research 19 : 207-223. 1 Je 1920. 

 Gardner, M. W. Peronospora in turnip roots. Phytopath. 10: 



321, 322. pi. 12. Je 1920. 

 Harter, L. L. and Weimer, J. L. Sweet potato rot and tomato 



wilt. Phytopath. 10: 306, 307. 1920. 

 Heere, A. C. Hints for lichen studies. Bryologist 23 : 26, 27. 



26 My 1920. 



Hungerford, C. W. Rust in seed wheat and its relation to seed- 

 ling infection. Jour. Agr. Research 19 : 257-277. pi. 38-48. 

 15 Je 1920. 



Jackson, H. S. New or noteworthy North American Ustilagi- 

 nales. Mycologia 12: 149^156. 1920. 



Urocystis Trillii sp. nov. and two new combinations in Ustilaginaceae. 



Lee, H. A. Behavior of the citrus-canker organism in the soil. 

 Jour. Agr. Research 19: 189-205. pi. 36, 37. 15 My 1920. 



Lloyd, C. G. Mycological notes 60 : 862-876. /. 1 463-1 496. Au 

 1919, with, photograph of Charles E. Fairman ; 62: 904-944. /. 

 1 598-1 7 47. Ja 1920, with an account of the life of Dr. J. C. 

 Arthur and notes on the genera Thamnomyces, Cordyceps, 

 Echinodontium, Aleurodiscus, Poronia, and others. 



Mackie, W. W. Head smut in sorghum and maize. Phytopath. 

 10 • 3°7, 308. 1920. 



McCubbin, W. A. The brown rot of stone fruits. Pa. Dept. Agr. 

 Bull. 340: 3-8, pi. 1 & /. J. 1920. 



Meinecke, E. P. Facultative heteroecism in Peridermium cere- 

 brum and P. harknessii. Phytopath. 10: 279-297. /. /, 2. 1920. 



Murrill, W. A. Another new truffle. Mycologia 12: 157-158. /. 

 1. 1920. 



Nowell, W. Report of an investigation of froghopper pest and 



diseases of sugar-cane in Trinidad. Trinidad & Tobago Dept. 



Agr. Bull. 18: 57-69. 1919. 

 Nowell, W. A root disease of cacao in Trinidad. Rosellinia 



pepo. Trinidad & Tobago Dept. Agr. Bull. 18: 178-199. /. 1-5. 



1919. 



Noyes, H. A. Bacteria in frozen soil. Proc. Indiana Acad. Sci. 

 1918 : 1 10-1 16. 1919. 



