120 Gardening 
—<s 
= NSGERE Oe c 
Fic. 71. he 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. Itisarather scrawny plant 
with comparatively few leaves, but under cultivation in 
various climates there have been developed from it: 
(x) 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; 
