PL 200. 



GROVE OF BALSAM POPLARS IN THE WU TAI MOUNTAINS OF 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 ravjnes 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. 



