47 BAROSMA SERRATIFOLIA 



Empleurum is quite different in floral structure, being apetalous, 

 with large erect red anthers, and a monocarpellary horn- 

 shaped fruit; it is well and completely figured in Berg and 

 Schmidt, t. 2 b. 



Harv. & Sond., 1. c., p. 393 ; Lindley, Fl. Med., p. 213. 



Official Part and Names. BUCHU FOLIA; the dried leaves of 

 Barosma betulina, Bart., Barosma crenulata, Hook., and Barosma 

 serratifolia, Willd. (B. P.). 'The dried leaves (Barosma; vel Buchu 

 Folia) of the above species of Barosma (I. P.). BUCHU; the 

 leaves of Barosma crenata, and of other species of Barosma 

 (U. S. P.). 



General Characters, Composition, and Commerce. The general 

 characters, composition, and commerce of Buchu have been 

 already given under Barosma betulina and Barosma crenulata. 

 The leaves of Barosma serratifolia, the species now under 

 notice, are not liable to any great variation in size and shape, 

 like those of the B. crenulata, and have been already fully 

 described. From their length they are known in commerce as 

 long buchu. In the British Pharmacopoeia their characters 

 are shortly given as follows : " From an inch to an inch and a 

 half long, linear-lanceolate, tapering at each end, sharply and 

 finely serrated, three-nerved." From the shape of the leaves, this 

 kind of Buchu is sometimes distinguished as linear-lanceolate 

 Buchu. 



Substitute. The leaves of Empleurum serrulatum, Ait., a small 

 shrubby plant, of the same natural order as Barosma, and inhabit- 

 ing the same district, are not unfrequently imported and sold 

 as Buchu. They are readily distinguished, as is indicated in 

 the accompanying plate of Barosma serratifolia, by being narrower 

 and longer ; and likewise by their different odour. They also 

 terminate in an acute point without an oil-gland; whereas the 

 leaves of Barosma serratifolia are blunt or somewhat truncate, 

 and always provided with an oil-gland at the apex. 



Medical Properties and Uses. Similar to the other species ; 



