200 
12. Downy mildew of grasses caused by Sclerospora graminicola (Sac- 
cardo) Schroeter. 
13. Hop mildew caused by Sphaerotheca Humuli (Fries) Burrill. 
14. Crown-rust of oats caused by Puccinia Lolit Nielson (= Puccinia 
coronata Corda.) 
15. Early blight of potatoes caused by Alterania Solani (Ellis and 
Martin) Jones and Grout (=Macrosporium Solani Ellis and Martin). 
16. Leaf-roll and curly-dwarf of potatoes, cause unknown. 
_ 17. Black leg of potatoes caused by Bacillus phytophthorus Appel 
(=Bacillus Solanisaprus Harrison, = Bacillus atrosepticus van Hall, = Bactl- 
lus melanogenes Pethybridge and Murphy). 
18. Potato scab caused by Actinomyces chromogenus Gasperini (= Strep- 
tothrix scabies (Thaxter) Cunningham,=Oospora scabies Thaxter). 
19. Black wart of potatoes caused by Chrysophlyctis endobiotica 
Schilbersky. 
20. Brown rot or wilt of Solanaceae (potatoes, tomatoes and tobacco) 
caused by Bacterium Solanacearum E. F. Smith (=Bacillus Solana- 
cearum E. F. Smith, = Bacillus Nicotianae Ueda). 
21. Rice blight or blast caused by Piricularia grisea (Cooke) Saccardo. 
22. Rice smut caused by Tilletia horrida Takahashi. 
23. Cobb’s sugar-cane disease caused by Bacterium vascularum (Cobb) 
G. Smith. 
24. Root disease of sugar-cane caused by Marasmius plicatus Wakker. 
25, Smuts of sorghum caused by Sphacelotheca Sorght (Link) Clinton, 
Ustilago cruenta Kithn and Sphacelotheca Reiliana (Kihn) Clinton. 
26. Timothy smut caused by Ustilago striaeformis (West.) Niessel. 
27. Timothy rust caused by Puccinia Phlet-pratensis Eriksson and 
Henning. 
28. Root-rot of tobacco caused by Thielavia basicola (Berkley and 
Broome) Zopf. 
29. Wheat scab caused by Fusarium cumorum (W. G. Smith) Saccardo. 
30. Flag-smut of wheat caused by Urocystis Tritict Kérnicke and the 
stem-smut of rye caused by Urocystis occulata (Wallroth) Rabenhorst. 
31. Take-all of wheat caused by Ophtobolus graminis Saccardo or 
Ophiobolus herpotrichus (Fries) Saccardo. 
32. The réle of insects in the dissemination of pathogenic fungi. 
FRUIT CROPS 
* 33. Fruit-spot of apple caused by Phoma Pomi Brooks (=Cylindro- 
sportum pomi Brooks). 
34. European apple tree canker caused by Nectria galligena Bresadola. 
35. Blister-canker of apple caused by Nummularia discreta (Schweinitz) 
Tulasne. 
36. Northwestern anthracnose of apple caused by Neofabrea malicorticis 
(Cordley) Jackson (=Gloeosporium malicorticis Cordley). 
:37- Apple rots caused by the following ascomycetous pathogenes; 
Alternaria sp., Cephalothecium roseum Corda., Volutella fructi Stevens and 
Hall, Endomyces Mali Lewis, Sclerotinia cinera (Bonorden) Schroeter. 
38. Water-core of apple, cause not definitely known. 
39. Crown-gall of apple and other fruit-trees caused by Bacterium 
tumefaciens E. F. Smith and Townsend. 
