Propagation by Detached Parts. 



189 



352. The Bulb is a very short stem containing a ter- 

 minal bud inclosed in scales (128 ). The scales are thick- 

 ened by a store of food, and in theii" 

 axils are smaller lateral buds. The 

 terminal bud usually develops into 

 a flower, and then perishes. One or 



Fig. 86. Vic.m. Fig. 88. Fig. 89. 



Fig. 86. Bulb of the coinmou onion, AlUuiii cepa, divided lengthwise. 

 B, buds. 



Fig. 87. Bulb of garlic, ,-t^/i"/» .idtiviim. It contains several smaller 

 bulbs (cloves). 



Fig. 88. Bulb of wild lily. 



Fig. SI). The same divided lengthwise, showing buds, B. 



more of the lateral buds may develop into flower-buds 

 for the next year, and thus continue the life of the plant, 

 as in the common oni(ni (Fig. S6); or the lateral buds 

 maj" develop at the ex])('nse of the parent, as in the po- 

 tato onion. 



353. Bulblets or 

 B u I b e I s are small 

 bulbs formed in the 

 axils of the leaves in 

 certain iilauts. as the 

 tigerlily,*(Pig. 90), 

 or at the apex of the 



Fig. 90. Bulblets in axils of lea^•es of tiger 

 lily. 



or bulb-bearing onion (Fig. 91). 



stem, as in the • 'top' 



* Lil/uin tifirinuin. 



