WEATHERWAX: MORPHOLOGY OF FLOWERS OF ZEA Mays’ 143 
9. In flowers of either sex the rudimentary organs of the 
opposite sex may be replaced by organs of normal appearance. 
In many instances these are not functional, but pistils are regularly 
functional in the tassels of some varieties of pod corn. 
10. Except in pod corn the glumes do not enclose the caryopsis 
as in most grasses. 
UNIVERSITY oF INDIANA, 
BLOOMINGTON, INDIANA 
LITERATURE CITED 
. Harshberger, J. W. Maize, or Indian corn. Cyclopedia of 
American Agriculture. Fourth Edition. 2: 398-402. 1912. 
. Montgomery, E.G. What is an ear of corn? Pop. Sci. Mo. 
68: 55-62. f. I-14. 1906.. 
. Montgomery, E.G. Perfect flowers in maize. Pop. Sci. Mo. 
79: 346-349. f. 1-6. I9QII. 
Baillon, H. Histoire des plantes. 12. Paris. 1894. 
. Bentham, G., & Hooker, J. D. Genera plantarum. 3. 
London. 1862. 
Hunt, T. F. Cereals in America. London. 1912. 
Wood, A. Botanist and florist. New York. 1870(?). 
Crozier, A. A. Silk seeking pollen. Bot. Gaz. 13: 242. 1888. 
True, R. H. On the development of the caryopsis. Bot. 
Gaz. 18: 212-226, pl. 24-26. 1893. 
10. Guignard, L. La double fécondation dans le mais. Jour. de 
Bot. 15: 37-50. I90I. 
11. Poindexter, C. C. The development of the spikelet and grain of 
corn. Ohio Nat. 4: 3-9. f. I-11. 1901. 
12, Sturtevant, E. L. Notes on maize. Bull. Torrey Club 21: 319- 
343. 1894. A similar article by the same author was pub- 
lished as Bull. 57, Bureau of Plant Industry, Washington. 
13. Stewart, A. The pistillate spikelet in Zea Mays. Science, 
II. 42: 694. 1915. 
. Kempton, J. H. Floral abnormalities in maize. 
Agr. Bur. Pl. Ind. Bull. 278. 1913. 
Collins, G. N. A variety of maize with silks maturing before the 
U. S. Dept. Agr. Bur. Pl. Ind. Circ. 107. 1913. 
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U. S. Dept. 
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tassels. 
