EUCALYPTUS TREES, 611 
chell.)—South Africa. This willow might be intro- 
duced on account of its resemblance to the ordinary 
Weeping willow. S. daphnoides, Vill., of Europe and 
Asia, 8. petiolaris, Smith, S. cordata, Muehlenb., S. 
tristis, Aiton, of North America, are among the best 
for binding sand. S. longifolia, Muehlenb., also North 
American, is among those which form long, flexible 
withes. 
Salix Humboldtiana, Willdenow.—Through a great 
part of South America. This willow is of pyramidal 
habit; attains a height of 50 feetand more. The wood 
ismuch in use for yokes and other implements. Many 
kinds of willow can be grown for consolidating shift- 
ing sand-ridges. 
Santalum album, Linné.—India, ascending to the 
temperate elevations of Mysore. A small or middle- 
sized tree, famed for its fragrant wood and roots. In 
the drier and stony parts of ranges the greatest fra- 
grance of the wood is generated. S. Freycenetianum, 
Gaudichaud, produces sandal-wood on the mountains 
of the Sandwich Islands, up to 3,000 feet. Several 
other species occur in Polynesia. The precious sandal 
oil is obtained by slow distillation from the heartwood 
and root, the yield being about 23 per cent. 
Santolina cyparissias, Linné.—Countries near the 
Mediterranean Sea. A very aromatic and handsome 
bush, of medicinal value. There are several allied 
species, 
Saxono-Gotha conspicua, Lindley.—The Mahin of 
Southern Chile. A middle-sized tree, with fine-grain- 
ed, yellowish timber. 
Sassafras officinale, Hayne.—From Canada to the 
Gulf of Mexico and the Missouri States. - The great- 
