Inventory 44, Seeds and Plants Imported. 



Plate VII. 



I 



Plant of the Oca, Oxalis tuberosa Molina, from the Mountains of 

 Peru and Bolivia. Showing the Rootstocks and the Typical Oxalis 

 Foliage. (See S. P. I. Nos. 41 168 to 41 176.) 



This plant, which has the general appearance of a large heep orrel, attains a heighl of a fool or 



more and bears 20 or more thickened rootstocks, which air largely used lor fond, being s md 



only in importance to potatoes in some districts of Peruand Bolivia. Theplanl maj l>«> suit- 

 able for acid soils, ascertain related species are, and the tubers may have value lor salads or 

 pickles, if not for general use as a vegetable. The rool stocks sometimes a Main a leu ;th ol 

 3 inches, with a diameter of V, inches, and vary greatlj in form and color, bul are generallj 

 attractive in appearance. (Photographed by G. B.Gilbert for the Yale-National Geographic 

 Society Peruvian Expedition, Sicuani, 1 era, A] ril 10, J;d.">; about one-fourth natural size; 

 P17751CA.) 



