50 



THE FUNGI WHICH CAUSE PLANT DISEASE 



bordered by numerous fine filamentous outgrowths. Growth on 

 slant agar gray. It is reported as the cause of vegetable rot.^""^ 



B. tabacivonis Del. is recorded on tobacco stems.' 

 B. tabificans Del.^''* which perhaps belongs to the genus Bac- 

 terium is reported as the cause of a beet disease in France. 

 B. tracheiphUus, E. F. Sm. (Group number 222. 03-.) 



