110 OXALIDACEyE. 



bears tubers like a potato, and is one of the plants called Arracacba : the 

 tubers are insipid, and not worth cultivation : the stalks of the leaves are 

 intensely acid, and make an agreeable preserve. Another species, the Oxa- 

 lis Deppei, has, however, fleshy roots, quite free from acidity, and abound- 

 ing in a matter analogous to that of salep. These roots are as large as 

 small parsnips, and are becoming esteemed for culinary purposes." Lindl. 

 The tubers of 0. crassicaulis, which resemble Jerusalem artichokes, of O. 

 esculenta, &c., possess similar qualities. 



