A PLANTSMAN'S DETECTIVE STORY 



Frontispiece. In Japan the skin of an orange called the Ynzu is widely used as a seasoning 

 for cooked foods, and the extracted juice serves as a condiment, much as we use vinegar. The 

 Yuzu is found semi-wild in southern Japan, and was long supposed to have been indigenous to 

 that region. 



Among the many plants discovered by Frank Meyer in China was a wild orange which he 

 called the Kansu orange, after the province of Central China in which it was found. Plants 

 of this orange were raised in the greenhouses of the United States Department of Agriculture 

 at Washington, and they were found to be surprisingly like the plants of the Yuzu growing 

 there. Examination of Meyer's photographs and botanic material revealed the interesting fact 

 that the Yuzu and the Kansu orange were identical, thus establishing the interesting fact that this 

 useful Japanese fruit had been imported from China a great many years ago. 



This is the field photograph made by Meyer of the fruit of the Kansu orange. (See text, p. 

 245.) 



