4.M 



ORIGIN OF CULTiVATiiD PLANTS. 



SPECIES OP AMERICAN ORIGIN. 

 Cultivated for the Underground Parts. 



New Granada (?). 



Arraoacha — Arracacha esculenta, ^ 



(1). 

 Jerusalem Artichoke — Helianthus 



tuberosus, "y:. 

 Potato — Solanum tuberosum, ^. 

 Sweet Potato— Convolvulus batatas, 



J' 

 Manioo — Manihot utilissima, 3. 



Arrowroot— Maranta arundinacea, f 



E. 



E.(?) 



E. 

 D. 



E. 



(?) 



North America (Indiana). 



Chili, Peru (?). 



Tropical America (where ?). 



East of tropical Brazil. 

 Tropical (continental ?) 

 America. 



