100 SALICACE.E. Salix. 



Pacific region, — valleys of the Sacramento River, California, and the 

 Colorado River, Arizona. 



A small tree, sometimes 15 to 18 metres in height, with a trunk rarely 

 0.60 metre in diameter, or in southern Florida reduced to a low shrub ; 

 banks of streams ; most common in the basin of the Mississippi River, and 

 reaching its greatest development on the rich bottom-lands of the Colorado 

 and other rivers of eastern Texas ; varying greatly in the size and shape 

 of the leaves (vars. angustifolia, longifolia. latlfolia, etc., Anders.), length 

 and habit of the aments, etc. (vars. marginata and Wrightil, Anders., var. 

 Wardii, Bebb). 



Wood light, soft, weak, close-grained, checking badly in drying ; med- 

 ullary rays obscure ; color brown, the sap-wood nearly white. 



The tonic and astringent bark is used domestically as a popular febrifuge, 

 containing, in common with all the species of the genus, salicylic acid, — 

 a powerful antipyretic now successfully used in the treatment of acute cases 

 of gout, rheumatism, typhoid fever, etc. 



307. Salix amygdaloides, Anders. 

 Willow. 



Shores of the great lakes (New York and Ohio), west to the valley 

 of the Saskatchewan, and southward through the Rocky Mountain 

 region to southern New Mexico; banks of the lower Columbia River, 



Oregon. 



•A small tree, rarely 9 to 12 metres in height, with a trunk 0.15 to 

 0.30 metre in diameter ; borders of streams. 



Wood light, soft, not strong, close-grained, checking in drying ; color 

 light brown, the sap-wood nearly white. 



308. Salix laevigata, Bebb. 



WIUoip. 



California, — Sierra County and the valley of the Sacramento River 

 to the southern boundary of the State. 



A tree sometimes 15 metres in height, with a trunk 0.30 to 0.G0 metre 

 in diameter; borders of streams and bottom-lands. Forms varying in the 

 shape of the leaves, length of aments, etc., are vars. angustifolia and 

 congesta, Bebb. 



Wood light, soft, not strong, brittle, close-grained, compact; medullary 

 rays numerous, very thin ; color light brown tinged with red. 



309. Salix lasiandra, Benth. 

 Willow. 



British Columbia, south to the valley of the Sacramento River. Cali- 

 fornia ; mountains of Utah, Colorado to New Mexico (var. FendUriana). 



