Inventory 44, Seeds and Plants Imported. 



Plate IX. 



The Ullucu, Ullucus tuberosus Caldas, One of the Mountain Root 

 Crops of Peru and Bolivia. (See S. P. I. Nos. 41 177 to 41 184.) 



In Peru the ullucu, or papal isa, ranks next in popularity tothepotato, being used largely in making 

 soups. The tubers resemble the potato very closely, 'except thai the skins are smoother and the 

 colors brighter, running from white through various intermediate shades to deep yellows and 

 reds. _ There are also varieties spotted white and pink or light yellow and pink. The tla\ oi is 

 peculiar and may not lie attractive to American palates, but as the tubers are produced in abun- 

 dance, the possibilities of utilization should becarefullj studied. ( Photograj bed by G. B.Gilbert 

 for the Yale-National Geographic Society Peruvian Expedition, Santa Rosa, Peru, -\pril 12, PJ15; 

 natural size; P17784CA.) 



