HYPERTROPHY. 421 



becomes apparent. A swollen bud or bulbil in this 

 situation is not uncommon in some cultivated tulips 

 and lilies. The presence of small tubers in the axils 

 of the leaves in the potato, as shown in fig. 201, is also 

 not unfrequent. 



Enlargement of the flower-stalk. The cauliflower and 

 broccoli afford famihar illustrations of hypertrophy of 

 the flower- stalk, accompanied by a corresponding 



Fia. 202. Inflorescence of ash (Fraxinus), with liyperti-opliied 

 pedicels, -flowers absent. 



