552 



BACTERIAL DISEASES OF PLANTS 



B 



iFo. 415. J.. Polythalamous very leafy gall on sweetbriar (Rosa rubiginosa) 

 due to Rhodites rosae L. B. Vertical section passing through some of the larval 

 chambers. The felted mass consists of finely dissected green leaves of a type 

 totally unlike the normal leaves of the plant. 



