1590 ARBORETUM AND FRUTICETUM. PART III. 



showing parallel veins, and being less shining. Introduced in 1823. There 

 are plants at Wobnrn, Henfield, and Flitwick. 



jM 158. S. UVa-u'rsi Piirsh. The J^cvLxhevry -leaved Willow. 



Identification. Pursh Fl. Amer. Sept., 2. p. 610. ; Smith in Uees's Cycle, No. 77. ; Forbes in Sal. 



Wob., No. 151. 

 Si/nonymcs. ? Identical with .5. Kitaibcli"d»a. {Borrer in his list.) It is probable that S. U'va-flrsi 



is only a variety of .S. rettisa L. {Id.) 

 The Sens. The female is noticed in the Spec. Char., S[c., below. 

 Engravings. SaJ. Wob., No. 151. ; and our Jig. 151. in p. 1G30. 



Spec. Cliar.y Sfc. Stem depressed. Leaves spathulate-obovate, obtuse 

 entire, glabrous ; shining above, glandular at the margin beneath. Stipules 

 none. Catkins lax. Bractea.s oblong, fringed. Ovary stalked, ovate, 

 glabrous. Style deeply divided. Stigmas two-lobed. A beautiful little 

 species, with all the appearance of y/rctostiiphylos I va-ursi in habit, as well 

 as in the form of its leaves. {Pursh.) A native of Labrador. Introduced 

 in ? 1811, and flowering in April and May. This was possessed alive by 

 Mr. G. Anderson. 



jc 159. S. s^ERPYLLiFO^LiA 800}^. The Wild-Thyme-leaved Willow. 



Identification. Scop. Cam., No. 1207.; Willd. Sp. PI., 4. p.684. ; Hayne Abbild., p. 325. ; Smith in 



Rees's Cyclo., No. 71. ; Forbes in Sal. Wob., No. 65. 

 Synoni/t/u's. S. retClsa A'ocA, y Koc/i Comm.,i>.t]3. It is probable that S. «erpyllifulia .Sco/J. is only a 



variety ofS. retOsa L. {Borrer in his list.) 

 The Sexes. The male is figured in Sal. Wob., the female in Hayne Abbild. 

 Engravings. Scop. Carn., t. 6!. "Scopoli's figure throws no great light on the " species. {Smith m 



Bees's Cyclo.) Sal. Wob., No. 65. ; our figs. 13+7, 1318. ; and fig. 65. in p. 1616. 



Spec. Char., Sfc. Leaves ovate, or ovate-lanceolate, acute, entire, 

 glabrous, shining above. Catkins oblong, of few flowers. Cap- 

 sules elliptic, glabrous. Stigmas sessile, (Smith in '^ 

 Rees's Cyclo.) A native of the high mountains of 

 France, Italy, and Switzerland; flowering in May. 

 Introduced in 1818. Haller, AUioni, Villars, and 

 other botanists, took this for a variety of S. retusa; 104.0 



but it appears to be widely different, the leaves being nearly 

 three times smaller, and always acute. A very curious little plant, only 

 1 in. or 2 in. high, of which there are specimens at Henfield, in the Chelsea 

 Botanic Garden, and in the arboretum of Messrs. Loddiges. 



jc 160. S. CORDIFO^LIA Pursh. The heart-leaved Labrador Willow. 



Identification. Pursh Fl. Amer. Sept., 2. p. 611. ; Smith in Rees's Cyclo., No. 72. ; Forbes in Sal. 

 Wob., No. 1«. p. 277. 



Engravings. Sal. Wob., No. 143., a leaf ; and fig. HI. in p. 1630. 



Spec. Char., *c. Stem depressed. Leaves oval, rather acute, entire, reticulated with veins, heart- 

 shaped at the base ; glabrous above, pale, with a hairy rib and ma-.-gin beneath. Stipules half- 

 heart-shaped. Native of Labrador. In general habit it resembles S. il/yrsinites. {Pursh.) A 

 native of North America, in Labrador. Introduced in 1811, and flowering from April till June. 

 Koch observes of this species, that it is very similar to S. Waldsteiniii nn Willd., and differs only 

 in the leaves being strictly entire. The leaves, when young, are sprinkled with villose hairs, but 

 soon become glabrous, except at the edge. 



Group xxii. Herhdcecc Borrer. 

 Very loiu Shrubs, scarcely rising an Inch above the Ground. 



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

 found in their specific characters. 



j» 161. 5". HERBA^CEA L. The herbaceous-Zoo/t/H"^ Willow. 



Jdentificalion. Lin. Sp. PI, 2+t;".. ; Willd. Sp. PI., 4. p. 683. ; rtavnc Abbild., p. 2.33. ; Smith in 

 Rees's Cycle, No. 66. ; Koch Comni., p. 6.3. ; Smith Eng. Bot., t. liK)7. ; Eng. Fl., 4. p. 199. ; 

 Forbes in Sal. Wob., No. 63. ; Hook. Br. Fl., ed. 3.; Mackay Fl. Hibern., pt. 1. p. 253. ; Host 

 Sal. Austr., 1. p. 32. ; Pursh Fl. Amor. Sept., 2. p. 617. 



The Saxet. Both sexes are described in Eng. Ft., and figured in Sal. Wob., Hayne Abbild., and 



