FIG. 228. Diagrams of typical flowers in vertical section, showing the 

 various relations of calyx, corolla, stamens, and carpels, as interpreted by 

 their development from the buds. 



Receptacle is dotted ; floral tube is lined lengthwise ; carpels are lined 

 crosswise. The parts in broken line do not fall in the median plane in a 3- 

 plan flower. 



Upper based on Scilla ; next on Hyacinth ; next on Snowdrop ; lower on 

 Narcissus. 



331 



