SEED-BEARING PLANTS 449 



400. Complete Flowers. — In the majority of Angio- 

 sperms the flower, in addition to the essential organs, 



■ Fig. 333. — Arrow-leaf (5agj<tona). At the left, branches with staminate 

 flowers only; in the middle, branches with pistillate flowers only; at the 

 right, pistillate branch, bearing fruit. 



possesses a calyx or a corolla, or both. Flowers possessing 

 both kinds of floral envelopes and both kinds of essential 

 organs are called complete. 

 29 



