230 



Mycologia 



Stakman, E. C, & Levine, M. N. Effect of certain ecological 



factors on the morphology of the urediniospores of Puccinia 



graminis. Jour. Agr. Research i6: 43-77. 13 Ja 1919. 

 Stevens, F. L. Two Illinois rhubarb diseases. Illinois Agr. 



Exp. Sta. Bull. 213: 299-312. /. i-ip. Ja 1919. 

 Stevenson, J. A. Catalogo de las enfermedades fungosas y no- 



parasiticas que atacan las plantas economicas de Puerto Rico. 



Rev. Agr. Puerto Rico 2 : 19-27. D 1918; 22-33. 1919. 

 Stevenson, J. A. La enfermedad del mosaico de tabaco. Rev. 



Agr. Puerto Rico 2 : 39-^44. D 1918. 

 Stewart, A. A consideration of certain pathologic conditions in 



Ambrosia trifida. Am. Jour. Bot. 6: 34-46. pi. 6-{-f. i. i F 



1919. 



Swingle, D. B., & Morris, H. E. Plum pocket and leaf gall on 

 American plums. Montana Agr. Exp. Sta. Circ. 77: 153-164. 

 /. 1-6. F 1918. 



Tanaka, T. New Japanese fungi. Notes and translations — VI. 



Mycologia 11 : 80-86. 17 Mr 191 9. 

 Taubenhaus, J. J. Pink root of onions. Science II. .49 : 217, 



218. 28 F 1919. 

 Temple, C. E. Report of the State pathologist. Maryland Agr. 



Soc. Rep. 2: 161-169. I Mr 1918. 

 Waksman, S. A. Studies on the proteolytic enzymes of soil fungi 



and Actinomycetes. Jour. Bact. 3 : 509-530. N 1918. 

 Weir, J. R. Concerning the introduction into the United States 



of extralimital wood-destroying fungi. Mycologia 11: 58-65. 



17 Mr 1919. 



Weir, J. R., & Hubert, E. E, The influence of thinning on 

 western hemlock and grand fir infected with Echinodontiuni 

 fiucforum. Jour. Forest. 17: 21-^35. /. i. Ja 1919. 



Zeller, S. M. Fungi found on C odium mucronatiim. Puget 

 Sound Biol. Sta. Publ. 2: 121-123. 26 D 1918. 



Chytridium codicola, Rhiaophidium codicola and Stemphylium Codii, spp. 

 nov. are described. 



