XIX 



THE CLASSIFICATION OF PLANTS 



255 



is gamosepalous. The corolla is polypetalous and consists of a 

 standard, wings, and keel The 10 stamens are either dia- 

 delphous or monadelphous. The pistil is monocarpous. The 

 fruit is a legume while the seeds are exalbuminous. 



Floral formula. K(5), 5, A(Q) + I or (10), G. 



Description of a typical plant of the Leguminosse. 

 (Pisum Sativum, Garden Pea). - 



FIG. 247. A, leaf and flower of Pea ; B, a side view of flower ; C, flower from 

 above ; D, longitudinal section of flower ; i, standard ; 2, 2', wings ; 3, the two 

 petals which form the keel. 



Habit. A weak annual plant which climbs by means of 

 tendrils. 



