730 Journal of Agricultural Research Voi.xx.No.g 



strain 429 



Plates 1 to 4 were transfers from mycelium on corn meal agar. 



Plates 5 to 8 were transfers from spores on corn meal agar. 



Plates 9 to 12 were transfers from mycelium on green bean plugs. 



Plates 13 to 16 were transfers from mycelium on glucose-potato agar. 



Plates 17 to 20 were transfers from mycelium on lactose-beef agar. 



Plates 21 to 24 were transfers from mycelium on oatmeal agar (spores). 



Plates 25 to 30 were transfers from mycelium on oatmeal agar (mycelium). 



On November 22 the final notes taken on the foregoing cultures were as follows: 



Plates 1 to 4. White, woolly fungal growth covering the medium. Plate No. 4 was 

 distinctly zoned; spores in center of culture. 



Plates 5 to 8. White, scanty fungal growth, which gave the culture a granular ap- 

 pearance; spores in center of culture. 



Plates 9 to 12. White, cottony growth, not zoned, but in two plates there was con- 

 siderable dark mycelial growth; spores in center of culture. 



Plates 13 to 16. Very scanty white mycelial growth; few spores. 



Plates 17 to 20. White, cottony growth; no spores. 



Plates 21 to 24. A membrane-like growth over the entire surface. Very little aerial 

 growth ; few spores. 



Plates 25 to 30. White, scanty growth of a granular appearance; zoned. 



STRAIN 561 



Cultures made on glucose potato agar, December 18, 1917. 



Plates 1 to 5 were transfers from corn meal agar. 



Plates 6 to 10 were transfers from glucose-potato agar. 



Plates 11 to 15 were transfers from oatmeal agar. 



The final notes were taken on December 28, 191 7. 



Plates 1 to 5. There is a gray, woolly aerial mycelium; growth in medium is dark 

 In plate 1 there is a white sector; no aerial growth but abundant spore production. 



Plates 6 to 10. The growth is white, apprest, wet-looking; no spores. 



Plates 11 to 15. No aerial mycelium, zoned, growth in medium white; good spore 

 production on surface. 



STRAIN 560 



Cultures were made on Petri dishes, poured with corn meal agar December 5, 1917. 



Plates 1 to 3 transferred from corn meal agar tubes. 



Plates 4 to 6 transferred from green bean plug. 



Plates 7 to 9 transferred from glucose-potato agar. 



Plates 10 to 12 transferred from lactose-beef agar. 



Plates 13 to 15 transferred from oatmeal agar. 



On December 17 the final notes taken on the foregoing cultures were as follows: 



Plates 1 to 3. White growth in medium; good spore production. 



Plates 7 to 9. White growth in medium; no aerial growth; no spores. 



Plates 10 to 12. White, woolly aerial growth; no spores. 



Plates 13 to 15. Growth in medium, dark; very scant aerial growth; no spores. 



STRAIN 990 



On October 16, 1917, corn meal agar plates were inoculated with strain 990, the 

 transfers being made from the various media. 



Plates 1 to 4 transferred from corn meal agar tube. 



Plates 5 to 8 transferred from green bean plug. 



Plates 9 to 12 transferred from glucose-potato agar tube. 



