278 INDEX TO AMERICAN BOTANICAL LITERATURE 
Johnson, D. S. The influence of insolation on the distribution 
and on the developmental sequence of the flowers of the 
giant cactus of Arizona. Ecology 5: 70-82. f. 1-4. Ja 1924. 
Kenoyer, L. A. Plant life of British India. Sci. Mo. 18: 48- 
65. Ja 1924. [Illust.] 
Leighty, C. E., & Taylor, J. W. Electrochemical treatment of 
seed wheat. U.S. Dept. Agr. Circular 305: 1-7. f. z. F 
1924. 
Leonian, L. H. A study of factors promoting pycnidium- 
formation in some Sphaeropsidales. Am. Jour. Bot. 11: 
19-50.. “Ja” 7 F 1924 
Levine, M. Studies on plant cancers—VI. Further studies on 
the behavior of crown gall on the rubber plant, Ficus elastica. 
Mycologia 16: 24-29. pl. 6. 19 Ja 1924. 
Lowry, R.B. The American lotus (Nelumbo lutea). Fl. Grow. 
1-4. Ja. 1924. [Illust.] 
MacRae, J. D. The X-ray study of flowers. Am. Forests and 
Forest Life 30: 31-33. Ja 1924. [Illust.] 
McAdow, M.A. Palms. Florida Grower 29:5, 25. 19 Ja 1924. 
McMurray, N. Green Rudbeckias. Am. Bot. 30: 28-29. Ja 
1924. 
McMurray, N. Indian strawberry. Am. Bot. 30: 27-28. Ja 
1924. 
Merrill, E. D. Plants from Banguey Island. Philippine Jour. 
Sci. 24: 113-116. Ja 1924. 
Including descriptions of I new variety and I new species. 
Moir, W. 8. White-pine blister-rust in western Europe. U. S. 
Dept. Agr. Bull. 1186: 1-31. f. 7-15. 8 F 1924. 
Munns, E. N. The biotic factor in forestry. Sci. Mo. 18: 
322-330. Mr 1924. [Illust.] 
Murrill, W. A. Cocoa and sata Jour. New York Bot. 
Gard. 253 17°14. "Ja" 
