PLANT BACTERIA, VOL. 3. 



PLATE 1U. 



Cross-section of two spikelets of Dactylis glomrrata, showing the floral organs widely separated by the yellow 



slime of Aplaiwbacter rathayi EFS. 



All of the amorphous parts (B, B) are masses of the bacteria. Photographed with Zeiss planar lens. F 20. and Zetnow's fluid filter 

 screen. Slide 934 C 3, top row, second section from left. Stained with Ribbert's capsule stain. 



