654 



BOTANY 



TART II 



Bajoura has thick-skinned fruits from which citron is obtained. Citrus Aurantium 

 occurs in two distinct forms, C. (Aurantium) vulgaris (Fig. 678) and C. (Auran- 

 tium} sinensis. Citrus nobilis, the Mandarin, is also of Chinese origin. Chimaeras, 

 called Bizzaria, have been obtained by grafting between Citrus Aurantium and 

 C. Limonum. Pilocarpus jaborandi, a tree-like shrub with large, imparipinnate 

 leaves, native of Eastern Brazil. 



FIG. 679. Quassia amara. (Nat. size. After BERG and SCHMIDT.) 



OFFICIAL. Citrus Aurantium, var. Bigaradia, yields AURANTII CORTEX 

 SICCATUS, AURANTII CORTEX RECENS, and AQUA AURANTii FLORis. Citrus medica, 

 var. limonum, gives LIMONIS CORTEX, and LIMONIS succus. Aegle marmelos 

 yields BELAE FRUCTUS. BUCHU FOLIA are obtained from Barosma betulina. 



Family 6. Simarubaceae. Contain bitter principles. Quassia amara 

 (Surinam) (Fig. 679), a small tree with beautiful leaves and showy flowers. 



OFFICIAL. QUASSIAE LIGNUM from Picrasma excelsa (West Indies). 



