1524 



ARBORETUM AND FRUTICETUM. 



PART 111. 



all comparison with that of the common white willow, and even ex- 

 ceeding that of S. RusselhVma (No. 24. in p. 1517.). The wood and 

 bark are at least equal in quality to those of S. alba. The foliage 

 is distinguished by its great luxuriance, more azure hue, and the 

 almost entire want of the hairs from the under side of the adult 

 leaves. Mr. Crowe thought the stipules might afford distinctions, 

 but we find them too variable." (Sm. in Rees*s Cyclo., vol. xxxi. No. 

 140.) Mr. Forbes says : " Although this plant has been reunited 

 with S. alba, it appears to me to be sufficiently distinct, and to be 

 recommended for the quickness of its growth ; the leaves are, also, 

 much larger than the last when cut down, and, as well as the twigs, 

 are of a darker hue." In the parish of Waterbeach, Cambridgeshire, 

 there are numerous trees of S. alba, the vigorous shoots and branches 

 of which, and especially those of pollard trees, have red bark, which, 

 when the trees are leafless in winter, are very conspicuous. This 



