282 WOODY PLANTS OF MASSACHUSETTS. 
worms. Perrottet brought it from Manilla to Senegal in 1821, 
and, some years afterwards, to Europe. It has been extensively 
propagated in this country, and affords a great abundance of 
more delicate leaves than those of any other mulberry; and the 
silk formed by worms feeding on them, is considered very ex- 
cellent, perhaps superior to any other. 
The Paper Mulberry, Broussonetia papyrifera, so much re- 
sembles a mulberry tree in its general appearance, that it has 
until recently been included in that genus. It is a low, thick- 
branched tree, with large, light colored, downy or hairy leaves, 
and dark scarlet fruit. It is very hardy, grows rapidly, has 
considerable beauty, and might be introduced as an ornamental 
tree, but 1s of no value for 1ts wood. It receives its specific 
name from the fact that, in Japan and China, of which it is a 
native, its bark is manufactured into paper. In the South Sea 
Islands, where also it is found, the bark 1s made into the curi- 
ous dresses which we sometimes see imported thence. 
Tat Osacz Orance, Maclira aurantiaca, isa native of the 
banks of the Arkansas, and other regions west of the Missis- 
Sippi. Its name was given by Nuttall in honor of William 
Maclure, a liberal and distinguished patron of the Natural 
Sciences in North America. It is a beautiful, low, spreading, 
round-headed tree, with the port and splendor of an orange 
tree. Its oval, entire, pointed leaves, have the polished, shining 
green of natives of warmer regions, aud 1s curiously tesselated, 
succulent, compound fruit, the size and golden color of an or- 
ange. 
The male and female flowers, which are green and incon- 
Spicuous, are found on different trees; and different kinds 
must grow in immediate vicinity, in order that the fruit may be 
fertile. In the neighborhood of Philadelphia, I saw, in the Au- 
tummn of 1839, some fine specimens of this tree, several of 
which were loaded with fruit. Ihave rarely seen an object in 
the vegetable world more strikingly beautiful. 
It was first introduced into St. Louis from the country of the 
Osage Indians, and thence received the name, which it well de- 
serves, of Osage Orange. It has since been cultivated in many 
