788 ARBORETUM ET FRUTICETUM BRITANNICUM. 
160. S. cornpiFO'LIA Pursh (Sal. Wob., No. 143., a leaf; and fig. 143. in 
p. 818.) is described in our first edition. 
Group xxii. Herbdcee Borrer. 
Very low Shrubs, scarcely rising an inch above the Ground. Prin. sp. 161. and 162. 
lL 
There are only two species in this group, the characteristics of which will be 
found in their specific characters. 
« 161, S. nwEerBa‘ces L. The herbaceous-looking Willow. 
Identification. Lin. Sp. Pl., 2445. ; Eng. FL. 4. p. 199. ; Hook. Br. Fl., ed. 3. 
The Sexes. Both sexes are described in Eng. Fl. and figured in Sal. Wob., Hayne Abbild., and 
Host Sal. Austr.; in Eng. Bot., the female in fruit and flower, and bractea (scale) of the male. 
Both sexes were living, in 1836, in the Twickenham Botanic Garden. 
Engravings. Eng. Bot., t. 1907.; Sal. Wob., No. 62.; and Host Sal. Austr., 1. t. 104.; our 
(fig. 1485. ; and fig. 62. in p. 803. 
Spec. Char.,§c. Leaves orbicular, serrated, reticulated 
with veins ; very glabrous and shining on both sides. 
Ovary stalked, ovate-lanceolate, glabrous. (Smith.) A 
diminutive shrub. Britain, on the Welsh and High- 
land mountains. Height lin. to 3 in. in a wild 
state, but much higher in a state of culture. Flowers 
yellow ; June. 
S. herbacea is the least of British willows, and, ac- 
cording to Sir J. E. Smith, the least of all shrubs. 
Dr. Clarke, in his Scandinavia, calls it a perfect tree in 
miniature; so small, that it may be taken up, and root, 
trunk, and branches spread out in a small pocket-book. 
162, S. PoLa‘ris Wahlenb. The Polar Willow. 
Identification, Wahlenb. Suec., p. 636.; Fl. Lapp., p. 261.; Koch Comm., p. 64. 
The Sexes. The female is described and figured in Sal. Wob. 
Engravings. Wahl. Fl. Lapp., t. 13, f. 1.; our figs. 1486. and 1487. ; and fig. 63. in p. 803. 
Spec. Char., §c. Leaves ovate, very obtuse, nearly entire, glabrous. Catkins 
oy of few flowers. Stem filiform, or thread-shaped. (Wahlen- 
berg.) A diminutive shrub. Lapland. Height 1 in. to 3in. _§ Y 
Introduced in 1820. Flowers yellow ; April, and again in ~ 
July. 
The branches and leaves of this species are more tender 
during the spring than those of S.herbacea; the stem is 
almost filiform. 
1485. S. herbacea. 
1486. 1487. S.polaris 
Group xxiii. Hastate Borrer. 
Low Shrubs, with very broad Leaves, and exceedingly shaggy and silky Catkins. 
(Hook Br, Fl.) Prin. sp. 163. and 164. 
aA 
2 163. S.wasta‘ta DL. The halberd-leaved Willow. 
Identification. Lin. Sp. Pl., 1443.; Fl. Lapp., ed. 2., 293.3; Willd. Sp. Pl, 4. p. 
The ates. The female is described and figured in Sal. Wob. 5 en 
ee Lin. Fl. Lapp., ed. 2. t.8, f.9,; Sal. Wob., No. 35.; our fig. 1488. ; and fig. 35. in 
Spec. Char., &c. Leaves ovate, acute, serrated, undulated, crackling, gla- 
brous ; heart-shaped at the base, glaucous beneath. Stipules unequally 
