31 KRAMEBIA IXINA 



from the Peruvian rhatany is of a red colour, whilst the pre- 

 cipitates formed in both the other tinctures are clear violet. 



Per. Mat. Med., vol. ii, pt. 2, p. 570 ; Per. Mat. Med., by B. & R., 

 p. 930 ; Pharmacographia, p. 76 ; U. S. Disp., by W. & B., p. 

 515; Pharm. Journ., vol. xvi, 1st ser., pp. 29 and 132; Han- 

 bury, in Pharm. Journ., vol. vi, 2nd ser., p. 460 ; Fliickiger, in 

 Pharm. Journ., vol. i, 3rd ser., p. 84, and vol. vi, 3rd ser., p. 21. 



DESCRIPTION OF PLATE. 



Drawn from a Mexican specimen collected by Pavon in the British Museum. 



1. A branch with flowers and fruit. 



2. Front view of a flower. 



3. Section of the same. 



4. One of the anterior petals. 



5. Fruit. 



6. Section of the same. 



7. One of the hooked spines. 



8. Root. 



(2-4 and 7 enlarged.) 



