84 Walter H. Burkholder 



The morphology and the cultural characteristics of each pathogene 

 are given. Phyt. viridiflava, Phyt. vignae var. legumino'phila, and Phyt. 

 medicaginis var. phaseolicola belong to the green-fluorescent group of 

 bacterial plant pathogenes; Phyt. phaseoli and its variety fuscans belong 

 to the Camyestre group; and Phyt. flaccumfaciens belongs to the Stewarti 

 group. 



The pathogenes vary in their host range over a dozen leguminous plants 

 which were used in a series of inoculation experiments. 



Control measures for the diseases are discussed. 



REFERENCES 



The following list of articles by no means contains all the references to 

 the bacterial diseases of the bean. It does contain the more important 

 ones, together with certain foreign references which would help in determin- 

 ing the distribution of the various diseases. American literature is full 

 of short descriptions and paragraphs mentioning bacterial affections of 

 this crop. Such articles are disregarded here unless they have con- 

 tributed something to our knowledge of the subject. Other articles and 

 books listed, which do not have a direct bearing on the diseases under 

 discussion, contain descriptions of methods and technic which have been 

 used in this work. 



Bailey, L. H. Manual of cultivated plants, p. 1-851. 1924. 



Barlow, B. A bacterial disease of beans. In Some bacterial diseases 

 of plants prevalent in Ontario, by F. C. Harrison and B. Barlow. On- 

 tario Agr. Coll. Bui. 136:9-13. 1904. 



Beach, S. A. Bean blight. In Report of the Horticulturist. New 

 York [Geneva] Agr. Exp. Sta. Ann. rept. 11 :(1892) : 553-555. 1893. 



Benians, T. H. C. Relief staining for bacteria and spirochaetes. British 

 med. journ. 2:722. 1916. 



Burkholder, Walter H. The bacterial blight of the bean: a systemic 

 disease. Phytopath. 11 : 61-69. 1921. 



Varietal susceptibility among beans to the bacterial blight. 



Phytopath. 14:1-7. 1924. 



— Variations in a member of the genus Fusarium grown in 

 culture for a period of five years. Amer. journ. bot. 12:245-253. 1925. 



A new bacterial disease of the bean. Phytopath. 16 : 915-927. 



1926. 



