788 



ARBORETUM ET FRUTICETUM BRITANNICUM. 



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160. S. cordifo'lia Pursh (Sal. Wob., No. 143., a leaf; and /g. 143. in 

 p. 818.) is described in our first edition. 



Group xxii. Herbdcece Borrer, ! 



Verj/ low Shrubs, scarcely rising an inch above the Ground. Prin. sp. 161. and 162. ' 



There are only two species in this group, the characteristics of which will be \ 

 found in their specific characters. 1 



-1* 161. (S. HERBA^CEA Z(. The herbaccous-foo^Mig Willow. 



Jdentijlcation. 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 Ahbild., and 



Host Sal. Austr. ; in Eng. Bot., tlie 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. ; a.-aAfig. 62. in p. 803. 



Spec. Char., ^c. Leaves orbicular, serrated, reticulated 

 with veins ; very glabrous and shining on botii sides. 

 Ovary stalked, ovate-lanceolate, glabrous. (Smith.) A 

 diminutive shrub. Britain, on the Welsh and High- 

 land mountains. Height 1 in. to 3 in. in a wild 

 state, but much higher in a state of culture. Flowers 

 yellow ; June. 



iS*. 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. ; ouxfigs. 1486. and 1487. ; and,/f^. 63. in p. 803. 



Spec. Char., Sfc. Leaves ovate, very obtuse, nearly entire, glabrous. Catkins 

 of few flowers. Stem filiform, or thread-shaped. (IVahkn- 

 berg.) A diminutive shrub. Lapland. Height 1 in. to 3 in. 

 Introduced in 1820. Flowers yellpw ; April, and again in 

 July. 



The branches and leaves of this species are more tender , 

 during the spring than those of 5. herbacea; the stem is " ""' 

 almost filiform. 



1485. 



1486. 



Group xxiii. Hastatce Borrer. 



Low Shrubs, with very broad Leaves, and exceedingly shaggy and siflcy Catkina*, 

 (Hook Br. Fl.) Prin. sp. 163. and 164. 



s2 163. iS. HASTA^TA L. Ihe \\2L\bevd-leaved WiWow . 



Identification. Lin. Sp. P1.,"I443.; Fl. Lapp., ed. 2., 293. ; Willd. Sp. PI., 4. p. 664 

 The Sexes. The female is described and figured in Sal. Wob. 



Erigravings. Lin. Fl. Lapp., ed. 2. t. S. f. 9. ; Sal. Wob., No. 35. ; our fig. 1488. ; and fig. 3^ 

 p. 799. 



Spec. Char., c^r. Leaves ovate, acute, serrated, undulated, crackling, g1i| 

 brous ; heart-shaped at the base, glaucous beneath. Stipules unequal); 



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