;;_':.' DKSCKIITIOVS OF THK snuri;s 



E. Leaves 1-1! indies wide, bright but not glossy green above, 

 while below; buds \ery large and nearly black ; shrub or tree 

 In L'.'I feei. (ii.\i (<>[ * \Vn.i.ow Salix dfseolor. 



E. Leaves 1-1 '. inches \\ ide, smoot h dark green above, whitened 

 and very nel-veined below. A willow, 4-K) feet high, of 

 the North ( Labrador, etc.). T. u > \ M WILLOW (575) Salix 

 balsamffera. 



E. Leaves 1-3 inches wide, rough above, thickish and with stout 

 stems ;}-.! inch long. A plant often used as stock upon which 

 to graft other willows to make such weeping trees as the Kil- 

 marnock willows. GOAT WILLOW (57<i) Salix Caprea. 



E. Leaves less than an inch wide, dark green above and glaucous 

 below, leaf steins nearly -J inch long. A slender-growing plant 

 5-12 feet. high found in the swamps of the North and West, 

 SLENI>I:I; U'n.i.ow (577) Salix pet.ioliiris. 



D. Leaves, though lighter below, are green on both sides. (F.) 



F. Leaves glossy green on both sides, fragrant when bruised, 

 usually over 1 inch wide, leaf-stalk with conspicuous glands. 

 These two are among the finest willows in cultivation and grow 

 from 8-20 feet high. (G.) 



G. Catkins large and conspicuous appearing with the leaves. 



SHINING WILLOW (578) Salix lucida. 



G. Catkins rather small and appearing after many of the leaves 

 are fully grown. I>AV-LKAVI:I> or LAII;I:L-LKAVLI> WILLOW 

 (579) Salix pentandra. 



F. Leaves rough above, soft with hairs below, 1-3 inches wide, 

 blunt at tip. A willow often used for stock for grafting, Ili-25 

 feet high. (;<>AT WILLOW (57(5) Salix Caprea. 

 F. Leaves smooth, silky and dark green above at least when young, 

 \-\ inch wide; shrub or tree 5-12 feet high growing along 

 streams. SILKY WILLOW (580) Salix serfcea. 

 F. Leaves under \ inch wide ; plants generally 5-15 feet high. (H.) 

 H. Leaves 2-15 inches long, about \ as wide, sometimes heart- 

 sha.ped at base; stipules large and usually persistent. A 

 very variable small willow of the watercourses, spreading at 

 base into long flexible branches. HEART-LI; \\i;i> WILLOW 

 (5X1) _ Salix cordata. 



H. Leaves :!-(> indies long and about ,'. as wide, often appearing 

 opposite riant spreading at base with long flexible branches, 

 so sometimes used as a basket willow. There is a variety, 

 pendula. with drooping branches. 1'ritri.ic WILLOW (5X2) 



. '.abx purpiirea. 

 H. Leaves 2-(i inches long and very narrow, usually less than 



