668 



BOTANY 



PART II 



Senegal (Soudan and Senegambia) and of other species, ACACIAE GUMMI is obtained. 

 This exudes from wounds as a thick fluid and hardens in the air. A. arabica, 

 A. catechu and A. decurrens are also official. 



Family 2. Caesalpiniaeeae. Trees or shrubs with pinnate or 

 bipinnate leaves. Flowers usually somewhat dorsiventral. Corolla 



FIG. 705. Krameria triandra. (f nat. 

 size. After A. MEYER and SCHU- 

 MANN.) OFFICIAL. 



FIG. 704. Tamarindus in- 

 dica. Fruit in longitu- 

 dinal section. M , the fleshy 

 mesocarp. (After BERG 

 and SCHMIDT.) OFFICIAL. 



FIG. 706. Floral diagrams of Papilionaceae. 

 A, Vicia Faba. B, Laburnum vulgare. (After EICHLER.) 



with ascending imbricate aestivation (Fig. 701) or wanting. Typical 

 floral formula :K5, C 5, A5 + 5, G- 1. The number of petals and 

 stamens is often incomplete. Embryo straight. 



Abundantly represented in the tropics and sub-tropics. 



In Cassia angustifolia the sepals and petals are both five in number and free 



