NAMES, HISTORIES, AND CLASSIFICATION. 251 



Horseradish. Less than 2000 years; eastern temperate 

 Europe. 



Jerusalem Artichoke. Probably ancient ; United States. 



Kaki. Ancient ; Japan and China. 



Leek. Over 2000 years ; Mediterranean basin. 



Lemon. More than 2000 years ; India or China. 



Lettuce. Over 2000 years ; Europe, Asia, and Africa. 



Maize. Very ancient ; New Granada (?). 



Melon, Musk. Less than 2000 years ; India, Beluchistan, 

 Guinea. 



Mushroom. Less than 2000 years ; Northern hemisphere. 



Oats. Over 2000 years ; temperate Europe. 



Okra. Less than 2000 years ; tropical Africa. 



Olive. More than 4000 years ; Syria, etc. 



Onion. Over 4000 years ; Persia, Afghanistan, Beluchistan, 

 Palestine (?). 



Onion, Welsh. Less than 2000 years ; Siberia. 



Orach. Less than 2000 years ; northern Europe and Siberia. 



Orange. Less than 2000 years in Europe ; probably ancient 

 far East ; China. 



Parsley. Less than 2000 years; Europe, Algeria, and Leb- 

 anon. 



Parsnip. Less than 2000 years ; central and southern Europe. 



Pea. Over 2000 years ; Caucasus to Persia (?), India (?). 



Peach. Over 4000 years ; China. 



Pear. Over 4000 years ; temperate Europe and Asia. 



Pepper. Over 500 years ; Brazil (?). 



Pineapple. Over 500 years ; Mexico, Central America. 



Plum. Over 2000 years ; Anatolia, north of Persia. There are 

 also many varieties of native species. 



Pomegranate. More than 4000 years ; Persia, etc. 



Potato. Over 500 years ; Chile, Peru. 



Pumpkin and Squash. Over 500 years ; temperate North 

 America. 



Quince. Over 4000 years ; north of Persia, south of the Cau- 

 casus, Anatolia. 



Radish. Over 2000 years ; temperate Asia. 



