WHITE 309 



The White Mulberry Tree grows rapidly, 

 reaching a height of thirty or forty feet. It 

 is a native of China, and its leaves are ex- 

 tensively used as food for silkworms. The tree 

 was introduced into America when silkworm 

 raising was being tried in this country, and 

 occurs now spontaneously near houses, especially 

 in the vicinity of long-established silk manu- 

 facturing plants. 



SMALL MISTLETOE 



Razoumofskya pusilla Arceuthobium pusillum 



Mistletoe Family 



Fruit. — The ovoid-oblong berries are solitary 

 and grow on short recurved stems. They are 

 fleshy, with seeds inclosed in a sticky mucus. 

 They develop in the autumn, a year or more 

 after flowering. 



This is an inconspicuous parasite, drawing its 

 nourishment from branches of the fir. It is 

 olive green to brown in color, and the leaves 

 are obtuse and scale-like. 



