FOREST TREES. 119 
appear in August. The wood is of little value, but 
for ornamental purposes, this tree well deserves 
notice. It is hardy much farther north than its 
native localities. 
PAULOWNIA. 
Natural Order—Scrophulariacee. 
Calyx, five-cleft; segments, equal, coriaceous, cov- 
ered with a rusty down; corolla, two-lipped, imbri- 
cated in its estivation, the two upper lobes external; 
fruit, ovate, with a sharp point. 
Paulownia imperialis is the only known species. 
It-is a native of Japan, and was introduced not more 
than twenty-five or thirty years since. It is a very 
rapid grower, with large, rough leaves, and large 
clusters of sky-blue flowers. These appear in June, 
and by their beauty compensate for the coarseness of 
their foliage. It is hardy about the city of New 
York, but farther north it is said that the blossom 
buds, which are quite conspicuous after the leaves 
have fallen, are often killed during the winter. In 
the rich soils of Northern Illinois it makes a rank, 
succulent growth, which is invariably killed to the 
ground the following winter. It will grow seven or 
eight feet the second year, from the seed, with leaves 
two feet broad. Where the climate is not too severe, 
it isa desirable tree. It is easily propagated by cut- 
tings of the roots, or by seed sown in spring. The 
seed is produced in a cone-shaped capsule, and is 
furnished with a membraneous wing. 
