4 



1522 ARBOIlF.rUM AND FKUTICETUM. PART III. 



$ 25. S. Pvrshia'NA Borrer. Pursh's Willow. 



Identification. Mr. Borrer suggests that this ei>ccics may be called S. Purshidno, as there is an 



older S. ambigua. (Borrer in a letter.; 

 Synonyme. S. amb(gua Pursli Fl. Amcr. Sept., 2. p. 617., Smith in Rees's Cuclo., 36., Forbes in Sal. 



M'oA., No. l;"^ , Hook. Br. I'l., ed. 2., incidentally under S. ambigua Ehrh. 

 The Sexes. The male is describetl in Sat. Hob. 



Spec. Char.,Sfc. Leaves lanceolate, pointed, serrated, glabrous; shining above, 

 glaucous underneath. Footstalks stout, glandular at the summit. Stipules 

 hall-heart-shaped, serrated, deciduous. Catkins accompanying the leaves. 

 Stamens 2. Bracteas rounded and concave. {Sal. Wob., p. 28-2.) A native 

 of North America, in low grounds ; and flowering in March and April. 

 This appears to be a rapid-growing tree, with round, greenish-brown, 

 smooth branches. The leaves are from oin. to Gin. long, and about 1^ in. 

 in breadth, somewhat resembling those of S. Russell/aHa, but much broader, 

 and more obtuse at the base ; wherein they resemble those of S. fragilis ; 

 they, however, difter from this species by their very white glaucous hue 

 underneath ; tiie serratures are, likewise, much coarser, and they are glandu- 

 lar, which is very obvious in the young leaves, that are generally furnished 

 with two obtuse glands at the insertion of the footstalks, which sometimes 

 run into small leaflets. Footstalks stout, glabrous. Catkins appearing 

 with the leaves. Stamens 2 in a flower. There are plants under the name 

 of S. ambigua in the Hackney and Goldvvorth arboretums ; also at Wobum 

 Abbey, and Henfield. 



A pp. i. Fidgiles introduced, but not yet described, or of doubtful 



Identity. 



Sk adscendens in Donald's Nursery. This kind is extremely dissimilar to the S. adscendens of 

 Ene. Bot. and Sal. Wob. S. bigemmis'l^oAA. Cat., ed. 1836. Specimens were received from the 

 Hackney and Goldworth arboretums, which appear quite different from the S. bigemmis of Hoff- 

 mann, which is identified with S. rfaphniiides I'Ulars. S. dccipiens, fem., Lodd. Cat., ed. 1836. S. 

 fragilis and S. murina Lodd. Cat, ed. 18j6. S. rhbra G. Lodd. 



App. ii. Fragile.<; described, but not yet introduced, or of doubtful 

 Identity 'with inti-oduced Species. 



S. fragilis, mas et fern., Host SaL Aust., 1. p. 5. t. 18, 19., FI. Aust, 2. p. 635. S.fragilior, mas et 

 fern., Host Sal. Aust., 1. p. 6. t. 20, 21., Fl. Aust., 2. p. 636. S. fragilissima, mas et fem , Host Sal. 

 Aust, 1. p. 6. t. 22, 23., Fl. Aust, 2. p. 636. ; synon. S. fragilis Host Syn., p. 527. S. palustris, mas 

 et fem.. Host Sal. Aust, 1. p. 7. t 24, 'J5. ; Fl. Aust., 2. p. 637. S. capinsis Thunb. Fl. Cap., 1. 

 p i:i9 ,' Smith in Bees's Cyclo., under No. 42., resembles S. babylonica, and is probably a variety 

 of that species. S. subserrlita Willd. Sp. PL, 4. p. 671., Smith in Bees's Cyclo., No. 45. (S. Sdfsaf 

 bce'lledi Forsk. Cat PI. iEgypt., 76.), is described as having a leaf very like that of S. babyl<jnica. 

 (Rees's Cyclo.) 



Group vi. A'lbce Boner. 

 Ti'eet ojttie largest Size, with the general Aspect of the Foliage whitish. 



m 



ij 



J 



Stamens 2 to a flower. Ovary glabrous. Flowers loosely disposed in the 

 catkin. Leaves lanceolate, serrated with glanded serratures; hairy, espe- 

 cially while young, with appressed silky hairs, which give to the foliage a 

 light or whitish hue. Plants trees of considerable height. {Hook. Br. FL, 

 ed. 2., adapted.) 



It 26. S. a'lba L. The whitish-leaved, or common white. Willow. 



JderUitlcation. Lin. Sp. PI., 1449. ; Willd. Sp. PI., 4. p. 710. ; Sm. Eng. Hot, t 2430. ; Eiig. Fl., 4. 



p. '231. ; *"orbcs in Sal. Wob., No. 136. ; Hook. I5r. Fl., ed. 3. ; Mackay Fl. Hibern., pt 1. p. 247. ; 



Ylayne AbbiUl., p. 254. ; Host Sal. Aust., 1. p. 9. ; Pursh Fl. Amcr. Sept, 2. p. 6ia 

 Synonymes. .S'ihx Baii Syn., 447., Gcr. Emac, 1389. with a fig. ; S alba, part of, Koch Comm., 



p. 16. ; the Huntingdon, or Swallow-tailcd Willow. (Pontey's Prof. Planter, ed. 1816, p. 92.) 

 The Sexes. Neither is rare in England. Both are describetl in Eng. Fl., and both figured in Eng. 



Hot., Sal. M'ob., Host Sal. Aust., and Hayne Abbild. 

 Engravings. Eng. Bot, t 2430. ; Sal. Wob., No. 1.36. ; Host Sal Aust, 1. 1. 32, .33. ; Hayne Abbild., 



t 197. ; our Jigs. 1314. and 1315. ; Jig. 136. in p. 1629. ; and the plates of this tree in our last 



Volume. 



