PIE-PLAWT 



culent petiole, heavy with malic and citric acid, that has culi- 

 nary value. 



The Rhubarb of the materia medica is the root of one or more 

 species of Rheum growing in China. This first came into Europe 

 by way of Turkey, then through Russia, and it is now exported 

 directly from China. Rheum palm&tum, a species with palmately 

 lobed leaves, is believed to produce the larger part of the world's 

 supply. 



