PLANT BACTERIA. VOL. 3. 



PLATE 43. 



Shoot of Datura stramonium attacked by the Granville tobacco wilt. 



The infection took place through broken roots as the result of transplanting to a bed in which diseased tobacco plants had been buried. The 

 vessels of this plant, especially in the lower part of the stem, were swarming with the bacteria (see fig. 125; Photographed Aug. 1008. 



