I2O 



Gardening 







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FIG. 71. The two kinds of flowers of a corn plant. At the left is the "tassel," 

 which bears the staminate flowers. At the right is the cluster of female 

 flowers that forms the immature ear. Each thread of this "silk" is a part 

 of a pistil, the portion outside of the husk being stigma. The pollen tubes 

 reach the ovules (which develop into the kernels) by growing down through 

 the silk. 



plants that differ markedly from one another. The wild 

 cabbage, now growing on the chalk cliffs of England and 

 elsewhere, is believed to be the ancestor of all the culti- 

 vated members of this group. It is a rather scrawny plant 

 with comparatively few leaves, but under cultivation in 

 various climates there have been developed from it : 



(1) kohl-rabi with its few leaves and thick, fleshy 

 stem; 



(2) kale, with many but separated leaves ; 



(3) cabbage, with the great bud on the top of the 

 stem developed as a compact head of leaves ; 



