72 



THE FRUIT -BUD 



are on different plants. Plants are said to be 

 monoecious when the stamens and pistils are 

 separate on the same plant, and dioecious when 

 they are on different plants. In both cases, it 

 is necessary that the inquirer should find two 

 kinds of blossom -buds, if he desires to locate 

 the parts. Fig. 64 is a twig from a filbert 

 taken in winter. The catkins, or flower -clus- 

 ters, are two at each 

 joint. With the first 

 warmth of spring, the cat- 

 kins elongate and dangle 

 in the wind. But they 

 bear only staminate or 

 male flowers. The pistil- 

 late or fruit-bearing flow- 

 ers are hidden in short, 

 rounded buds, and the 

 pistils do not protrude un- 

 til spring. Fig. 65 shows 

 a twig of hazel (filberts 

 and hazels are very closely 

 allied) taken in early 

 spring, and the styles of 

 the pistillate flowers are protruding from 65. Pistn- 

 the two lower buds. Other monoecious 

 fruit plants } are the walnuts, butter- 

 nut, hickories, and chestnuts, but chestnuts pro- 

 duce their flowers in summer, and the buds from 

 which fruits are to come cannot be so well dis- 



64. Winter cat- 

 kins of filbert. 



