Index to American Mycological Literature 355 



veroorzaakt door Sclerotium coffeicolum nov. spec. Dept. 



Landb. Suriname Bull. 42: 1-34. pi. 1-11. Ja 1921. 

 Stevens, F. L. Bacteriology in plant pathology. Trans. Am. 



Micro. Soc. 36: 5-12. Ja 1917. 

 Stevens, F. L. The relation of plant pathology to human welfare. 



Am. Jour. Bot. 8: 315-322. 1921. 

 Sydow, H. & P. Notizen fiber einige interessante oder wenig 



bekannte Pilze. Ann. Mycol. 18: 178-187. Ap 1921. 



Includes Rhizogene gen. nov. 



Thaxter, R. Preliminary descriptions of new species of Rickia 

 and Trenomyces. Proc. Am. Acad. Arts & Sci. 48 : 365-386. 

 S 1912. 



Includes new American species in Rickia (i), and Trenomyces (4). 



Tisdale, W. H., & Griffiths, M. A. Flag smut of wheat and its 

 control. U. S. Dept. Agr. Farm. Bull. 1213: 1-6. /. 1, 2. 

 My 1921. 



Tisdale, W. H., & Jenkins, J. M. Straighthead of rice and its 

 control. U. S. Dept. Agr. Farm. Bull. 1212 : 1-16. f. 1-6. Je 

 1921. 



Weimer, J. C, & Harter, L. L. Glucose as a source of carbon for 



certain sweet potato . storage-rot fungi. Jour. Agr. Res. 21: 



189-210. 16 My 1921. 

 Weir, J. R., & Hubert, E. E. Forest disease surveys. U. S. Dept. 



Agr. Bull. 658: 1-23. /. 1-23. 12 Je 1918. 

 Weiss, H. B. Diptera and fungi. Proc. Biol. Soc. Washington 



34: 85-88. 30 Je 1921. 

 Weston, W. H. The occurrence of wheat downy mildew in the 



United States. U. S. Dept. Agr. Circ. 186: 1-6. Je 1921. 

 Zundel, G. L. Smuts and rusts of northern Utah and southern 



Idaho. Mycologia 13 : 179-183. 1921. 



