PLATE 63 



A. — Leaves and twigs of faustrime from greenhouse experiment with typical spots. 

 Compare with those on Microcitrus australis. 



B. — Types of spots found on Citrus nobilis (King of Siam, Naranjita, and tanger- 

 ine). XK- 



C. — Leaf of the citrangequat from greenhouse experiment. The spots here are 

 extremely small and never increase in size. This is one of the few leaves that have 

 been successfully inoculated. 



D. — Citrumelo leaf with typical canker spots. All hybrids of Poncirus trifoliata 

 have the same type of spot. 



E. — Upper and lower surface of a naturally infected leaf of Citrus mitis in the field. 

 Practically all spots occiur along the midrib. 



