322 DESCRIPTIONS OF THE SHHUBS 



E. Leaves 1-lJ inches wide, briglit but not glossy green above, 

 white below ; buds very large and nearly black ; shrub or tree 

 to 25 feet. Glaucous Willow — Salix discolor. 



E. Leaves 1-lJ inches wide, smooth dark green above, whitened 

 and very net^veined below. A willow, 4^10 feet high, of 

 the North (Labrador, etc.). Balsam Willow (575) — Salix 

 balsamifera. 



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

 stems J-^ 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 (576) — Salix Cdprea. 



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

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

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

 Slender Willow (577) — Salix petiolaris. 



D. leaves, though lighter below, are green on both sides. (P.) 



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 Idcida. 

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

 are fully grown. Bay-leaved or LAnEEL-LEAVED Willow 

 (679) — Salix penttodra. . 

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

 blunt at tip. A willow often used for stock for grafting, 12-25 

 feet high. Goat Willow (576) — Salix Ciprea. 

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

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

 streams. Silky Willow (580) — Salix serfcea. 

 P. Leaves under J inch wide ; plants generally 5-1.5 feet high. (H.) 

 H. Leaves 2-3 inches long, about J as wide, sometimes heart- 

 shaped at base; stipules large and usually persistent. A 

 very variable small willow of the watercourses, spreading at 

 base into long flexible branches. Heakt-leaved Willow 

 (581) — Salix cordata. 

 H. Leaves 3-6 inches long and about I as wide, often appearing 

 opposite. Plant spreading at base with long flexible branches, 

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

 ptodula, with drooping branches. Purple Willow (582) 

 — Salix purpurea. 

 H. Leaves 2-6 inches long and very narrow, usually less than 



