196 THE BOTANICAL MAGAZINE. [Vo i. xxra. No. 274. 



grown in the northern extremity. The details in each letter 

 may be seen from the following translations. 



(1) Letter from Dr. M. Hanzawa in the Agricultural 

 college, Imprial University, Sapporo. 



" I beg to inform you that the trifoliata orange does not 



grow wild in Hokkaido, and that I have heard from Professor 

 Miyabe of our College that he had once tried to cultivate the 

 plant in the botanic garden here but without success. All the 

 specimens he had planted perished in winter from extreme cold. 

 At present we find no living specimens of this plant in Sapporo 

 and its vicinity. Professor Miyabe is of opinion that the plant 

 will likewise not thrive in Hakodate, Fukuyama, and Yesasi in 

 the southern parts of Hokkaido as in Sapporo." 



(2) Letter from Mr. Homma in South Tsugaru Agricultu- 

 ral School. 



" I have the honor to answer your postcard concerning the 

 northern limit of the distribution of the trifoliata orange, 

 instead of the former director of the school, Dr. Kusakawa, 

 who was called to the other situation and left here a few days 

 ago. I see here examples of Citrus trifoliata thriving in good 

 condition in South Tsugaru and producing perfect fruits. I 

 suppose that the plant will grow throughout Aomori-prefecture 

 even in the northern extremity. Of course in Sendai in Miyagi- 

 prefecture it attains to a considerable size and is utilized as 

 hedged of prison." 



(3) Letter from Dr. M. Nishida in the Akita Branch Office 

 of Forestry Department. 



" I have received your letter of 27th Sept. and have the 

 honor to answer you in the following lines. It is said that 

 until about the beginning of the Meiji era, the trifoliata orange 

 was much used as hedges in this city, but at present we can 

 see them no more. Among isolated specimens in house gardens 

 and public parks, we see very old ones measuring 3.7 inches in 

 diameter, and 18 feet in height or more. They flower and bear 

 fruits just as in Tokyo. I do not know that whether this tree 

 thrives in the colder mountainous regions in this district or 

 not." 



