116 FOREST TREES. 
once. Birds, too, are fond of the berries, and some- 
times devour them as fast as they ripen. 
Morus nigra—Black Mulberry. 
Leaves, cordate, rough, small. 
This species is a native ot Europe, and is cultivated 
there for its fruit, and als» in some parts of the 
United States. It is a small tree, not hardy in the 
most northern States. Its growth is slow, and its 
wood not valuable. Michaux says the fruit is three 
or four times as large as that of the Red Mulberry. 
Meehan, on the other hand, avers that it is smaller. 
Having never seen the tree in fruit, I cannot decide 
the question. 
Morus alba— White Mulberry. 
Leaves, obliquely heart-ovate, acute, serrate, some- 
times lobed, smooth and shining; fruit, whitish. 
. The White Mulberry is found in many parts of the 
United States. It was introduced from Europe for 
feeding silk worms, and is of little value for any other 
purpose. It grows to the height of twenty or thirty 
feet. 
NYSSA—TU PELO. 
Natural Order, Cornacee 
Calyx of staminate flowers, five-parted, without a 
corolla; stamens, five to ten; pistillate flowers, five- 
stamened; fruit, a one-seeded drupe; nut oval, 
striated. 
