PL 200. 
GROVE OP BALSAM POPLARS IN THE WU TAI MOUNTAINS OP CHINA. POPULUS SUAVEOLENS, 
S. P. I. No. 22861', 
This species, which is a native of Siberia and China, is used extensively by the Chinese for 
planting at the mouths of ravines to bind the stones and sand and prevent the mountain torrents 
from carrying their debris down over the cultivated fields below. It grows successfully at 
elevations of 8,000 feet. It is a white-barked species and its leaves when young have a balsamic 
odor. It may find a use in America similar to that made of it in China. Photographed (P5417FS) 
by F. N. Meyer, Wutaishan, Shansi, China, February 27, 1908. 
