250 horticulturist's rule-book. 



Bean, Lima. — About 500 years ; South America. 

 Blackberry. — About 40 years ; North America. 

 Buckwheat. — Less than 2000 years ; Mandschuria, central 



Siberia. 

 Buckwheat, Tartarian. — Less than 2000 years ; Tartary, 



Siberia to Dahuria. 

 Cabbage. — Over 4000 years ; Europe. 

 Carrot. — Over 2000 years ; Europe, western temperate Asia 



Celery. — Over 2000 years ; Europe, Asia, and Africa. 



Cherry. — More than 2000 years ; temperate Europe and Asia. 



Chestnut. — (?); from Portugal to Caspian Sea, eastern Al- 

 geria. 



Chives. — Less than 2000 years ; temperate and northern 

 Europe. 



Citron. — Over 2000 years ; India. 



Corn-salad. — Less than 2000 years ; Sardinia, Sicily. 



Cotton, Herbaceous. — Over 2000 years ; India. 



Cranberry. — About 50 years ; North America. 



Cress. — Over 2000 years ; Persia (?). 



Cucumber. — Over 4000 years ; India. 



Currant, Black. — Less than 2000 years ; Europe, western 

 Himalayas. 



Currant, Red. — Less than 2000 years ; Europe to Himalayas. 



Date-palm. — Over 4000 years ; western Asia and Africa. 



Egg-plant. — Over 4000 years ; India. 



Endiv.e. — Less than 2000 years ; Mediterranean basin. 



Fig. — Over 4000 years ; south of Mediterranean basin. 



Garlic. — Over 2000 years ; desert of the Kirghis. 



Gooseberry. — Less than 2000 years ; temperate Europe, 

 western Himalayas. Houghton and Downing are from a 

 native species. 



Grape. — European or wine grape (the grape of history) , over 

 4000 years ; western Asia and Mediterranean basin. 

 American grapes are natives, and have come into cultiva- 

 tion within this century. 



Hop. — Less than 2000 years ; Europe, Asia, United States. 



