ILLUSTRATIONS, 



Plate I. Coffee branch attacked by thread blight {Pellicularia koleroga), show- 

 ing characteristic suspension of leaves by threads of the fungus 8 



II. Coffee leaves attacked by the leaf spot fungus {Stilhella flavida) 8 



III. Fig. 1. — Coffee tree attacked by the root disease fungus {Rosellinia sp.) 



Fig. 2. — Imperfect form of root disease fungus {Dematophora sp.) on 

 Petiveria plants 16 



IV. Coffee leaves attacked by the zonal leaf spot {Cephalosporium sp.), 



showing upper and lower surfaces 16 



V. Trunk of coffee tree with Fusarium disease produced by inoculation. . 24 

 VI. Root of coffee tree. Roughened bark due to nematodes. Roots 



killed by "white " root fungus 24 



VII. A. — Spot on leaf showir^ fruiting bodies of Stilhella flavida. B. — En- 

 larged head of fruiting body of Stilhella flavida. C and D . — ^Threads 



of Pellicularia koleroga, showing brandling 24 



VIII. A. — Ascus and spores of Rosellinia sp. B. — Hyphse and spores of 



Dematophorasp. C. — Hyphse and spores of Cephalosporium s^ .. . 24 

 (6) 



