614 



BOTANY 



the plant in India. The name was first applied to the Bitter-fruited Orange, 

 which found its way west much earlier that the sweet variety, and was sub- 

 sequently applied to the latter. Citrus nobilis, the 

 Mandarin, is also of Chinese origin. 



OFFICIAL. Citrus Aurantium, var. Bigaradia, yields 



AUKANTII CORTEX SICCATUS, AVRASTII CORTEX RECEXS, 



and AQUA AURANTII FLORis. Citrus medica, var. limonum, 

 gives LIMOXIS CORTEX, and LIMONIS succus. BUCHU FOLIA 

 are obtained from Barosma betulina. CUSPARIAE CORTEX 

 from Cusparia febnfuga. JABORANDI FOLIA from PH- 

 carpus jaborandi, a tree-like shrub with large, imparipinnate 

 leaves, native of Eastern Brazil. 



Family 9. Simambaceae. K5, C5, A 5 + 5, G5. 

 Carpels free. No oil glands. Contain bitter principles. 



OFFICIAL. QUASSIAE LIGXVM from Picrasma excelsa 

 (West Indies) and Quassia amara (Surinam). The latter 

 (Fig. 653) is a small tree with beautiful leaves and showy 

 flowers. 



Family 10. Burseraceae. Woody plants with resin 

 passages. Fruit, a drupe. Commiphora abyssinica and C. 



FIG. 054. Floral diagram of Polygda myrtifolia. (After EICHI.KR.) 



Fio. 6a5.l'olygala Senega. A, Flower ; a. small ; 'b, large sepals ; c, 



keel ; e, lateral sepals ; d, androeciuiii. D, androecinm ; h, .anthers FIG. 656. Polygala Stnega. 

 (magnified). (After BERG and SCHMIDT.) OFFICIAL. (J nat size). OFFICIAL. 



Schimperi are trees found in Arabian East Africa. Boswellia Carteri and B. Bhau 

 Dajianae are small trees (3) from the same region which yield OLIBANUM. Canarium. 



OFFICIAL. MYIIRHA, Myrrh, from Balsamodendron Afyrrha and other species. 



Family 11. Polygalaceae. Herbs or shrubs with small simple leaves and 



