Plate iv. 



Fie. i. A porti m of a leaf of su mi cane shewing the ring spots produced 

 by the fungus. 



Fig, -. An ascus with spores. 



Fig. _>. Two -.pores more highly magnified. 

 /'..'. /. 



Fig. .;. The apex of a shoot of sugar cane showing the apical l< 

 converted into a black, whip-like structure. 



Fig. >. Two spores. 

 Marasmius Seu h i , 



Fig. 6. The base of a cane bearing toadstools of different a 



Fig. 7. Two spores. 



rficium javanicum. 



Fig. 8. Shewing the hymenium of the fungus. 



Fig. 9. Two basidiospores. 



Plate V. 



Diplodia cacaoicola. 



FlG. r. The stem of a cacao plant shewing the perithecia of the fungus 

 erumpent in groups through the surface of the bark. 



Fk;. 2. The Fusarium-iorm which appears on the stroma in which the 

 perithecia are embedded. 



Fig. 3. Two mature conidia of the Fusarium-ioxm highly magnified. 



Fig. 4. A stroma with two perithecia embedded in it. 



Fig. 5. Two spores highly magnified. 

 Peslalozzia Palmarwn 



Fig. 6a. Two conidia. 



Fig. 6b A raised spot from which a curved tendril of conidia is oozing out. 

 Ramttlaria necator. 



Fig. 7. Fertile hyphse bearing conidia. 



Plate VI. 



Colletotrichtim luxificum . 



Fig. i. Section of a pod shewing an acervulus. 

 Colletotrichtim Cradivickii. 



Fig. 2. A pod of cacao shewing the acervuli of the fungus. 



Fig. 3. Section of a pod shewing an acervulus. 

 Colletotrichum falcattim. 



FlG. 4. Setae, conidiophores and conidia. 

 Colletotrichtim incarnatum. 



Fig. 5 Section of a pod shewing an acervulus. 

 Hemileia vastatrix. 



Fig. 6. Portion of a leaf of coffee shewing a pale-coloured spot with 

 pustules. 



Fig. 7. Two conidia viewed from different sides. 



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