1524

ARBORETUM AND FRUTICETUM.

FART III,

all comparison with that of the common white willow, and even ex-ceeding that of S. Russelk'a«a (No. 24. in p. 1517,). The wood ?bark are at least equal in quality to those of S. alba. The toliafis distinguished by its great luxuriance, more azure hue, anaalmost entire want of the hairs from the under side of the aleaves. Mr. Crowe thought the stipules might afford distincuo ,but we find them too variable,” (&». in Rees’s Cych., vol. xxxn •140.) Mr. Forbes says Although this plant has been rein#with S. alba, it appears to me to be sufficiently distinct, andrecommended for the quickness of its growth; the leaves we, >much larger than the last when cut down, and, as well as the yjg 1are of a darker hue.” In the parish of Waterbeach, CambTJage^^^there are numerous trees of S. alba, the vigorous shoots and braof which, and especially those of pollard trees, have red bar",when the trees are leafless in winter, are very conspicuous.