PLATE 59 



A. — Leaves of Atalantia citrioides and A. ceylonica (center) from plants in the green- 

 house experiments, showing the canker spots typically produced on these plants. 

 Natural size. 



B. — Compoiind leaf of Hesperthusa crenulata from isolation field, with naturally 

 occiu-ring canker spots on two of the leaves. Natural size. 



C. — Leaves of Microcitrus Garrowayi from plants in the greenhouse experiments, 

 with different types of canker spots. These spots are characteristici of all found on 

 Microcitrus spp. X 2. 



D, E. — Infected leaves from twigs of Eremocitrus glauca from greenhouse plants, 

 showing the large flat spots on the leaves and the rather corky spots on the twig and 

 thorn. X 3- 



