KUNKEL: VIRUSES 



93 



Fig. 8. False blossom in Nicotiana gbitinosa. The flower at the left is healthy. The other 

 two flowers have false blossom. 



Fig. 9. False blossom in Nicotiana gbitinosa. The flowering branch at the left is healthy; 

 that at the right diseased, showing gigantism in flowers affected by the virus. (Photo- 

 graphs by J. A. Carlile.) 



