24 LUTHER BURBANK 



at an altitude of about five thousand feet. He 

 declares that the fruit is popular, and that 

 efforts have been made to induce the Chinese to 

 make a business of growing it, but that hitherto 

 it has been necessary to depend entirely upon 

 plants growing wild in the mountains. 



The vine clambers over the underbrush on the 

 mountainside like a grapevine. It is, of course, 

 very hardy. The Chinese hairy plum, like its 

 more promising relative the A. argnta of Korea, 

 is dioecious; therefore it is necessary to have 

 both staminate and pistillate plants, else no fruit 

 is produced. The Korean species has borne fruit 

 abundantly here for several years. 



One of the attractive features of plants of this 

 tribe is the ease with which they may be propa- 

 gated. Not only can they be grown readily from 

 seed, usually producing new varieties, but they 

 grow also from soft or hard wood cuttings, from 

 tip cuttings, or by layering. 



When a new variety is produced of the de- 

 sired type, it can be multiplied indefinitely by 

 dividing any part of the plant into sections and 

 insuring conditions suitable for growth. 



Some of the plants of the genus are true climb- 

 ers. Many of them, however, trail upon the 

 ground. Those that climb are valuable for 

 covering screens, arbors, walls, and low build- 



