LLUSTRATIONS. 



PLATES. 



Page. 



Plate I. Glomerella asci and ascospores from various hosts 110 



II. Glomerella cingulata asci and ascospores from different hosts 110 



III. Glomerella cingulata asci from three different hosts 110 



IV. Pomelo leaves showing colonies of Glomerella cingulata 110 



V. Pomelo leaves, one showing localization of numerous points of infec- 

 tion and the other apparently not infected 110 



VI. Glomerella cingulata on orange leaves and on a rubber-plant leaf 110 



VII. Glomerella lindemuthianum cultures from bean 110 



VIII. Glomerella cingulata cultures from Persea — 1 110 



IX. Glomerella cingulata cultures from Persea — II 110 



X. Glomerella cingulata cultures from Persea — III 110 



XI. Glomerella cingulata cultures from Persea — IV 110 



XII. Glomerella cingulata cultures from Persea — V 110 



XIII. Glomerella cingulata cultures from Persea — VI 110 



XIV. Glomerella cingulata cultures from Persea — VII 110 



XV. Glomerella cingulata cultures from Persea — VIII 110 



XVI. Willow Twig apples inoculated with conidia of Glomerella cingulata 



from different hosts 110 



XVII. Figs 13 days after inoculation with conidia of Glomerella cingulata 



from a rubber plant 110 



XVIII. Watermelon inoculated with conidia of Glomerella cingulata from 110 



gua va 110 



TEXT FIGURES. 



Fig. 1. An apparently healthy fruiting branch of an orange infected with 



Glomerella cingulata 21 



2. Germinating conidia of Glomerella cingulata from a culture from pear. . 65 



3. Germinating ascospores of Glomerella cingulata from cultures from 



gooseberry 65 



4. Germinating chlamydospore, or appressorium, of Glomerella cingulata 



from a culture from gooseberry 65 



252 9 



