942 



A TEXTBOOK OF THEORETICAL BOTANY 



Fig. 930. — Narcissus pseiido - narcissus. 

 Longitudinal section through a bulb 

 with a lateral offset showing adventi- 

 tious roots at the base and foliage 

 shoot above. 



Fig. 931. — Nerine capensis. Longitudinal 

 section of a bulb showing leaf base 

 scales and an offset developing from 

 one of the axillary buds. 



i 



I 



Fig. 932. — Lilium candidum. Bulb showing small 

 loosely arranged scales. 



only require to expand when the flowering season arrives. This expansion 

 is carried out at the expense of material stored in the scales, which con- 

 sequently shrivel, the outermost becoming dead and papery. After flowering 

 the foliage leaves persist and the food material they elaborate is sent down 



