1522 ARBORETUM AND FRUTICETUM, PART III. 



V 25. S, lYusiu i\\vj Borrer. Pursh*s Willow. 



Mr. Borrer suggests that this species maybe called S. Pursht'dno, as there is an 

 older S amblgua. [Borrer in .1 letter.) 



S amWgua Pursk FL Amer. Sept., 2. p. tU7.. Smith in /iVr.s-V Cyclo., 36., Forbes in SaZ. 

 , N i . Hook. Br. 17., ed.2., incidentally under S. amblgua Ehrh. 

 I le male is described in Sal. fFoA. 



., Ac. Leaves lanceolate, pointed, serrated, glabrous ; shining above, 

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

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

 Stamens 2. Bracteas rounded and concave. (Sal. fVob, s p. 282.) A native 

 of Ninth 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 5 in. to 6 in. long, and about 1^ in. 

 in breadth, somewhat resembling those of S. RusseUiana, but much broader, 

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

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

 underneath ; the 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 .V. ambigua in the Hackney and Goldworth arboretuins ; also at Woburn 

 Abbey, and llenfield. 



App. i. Fragile* introduced, but not yet described, or of doubtful 



Identity. 



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

 Eng. Bot. and Sal. Wob. S. bigimmis Lodd. 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. daphnoldes Hilars. S. decipiens, fern., Lodd. Cat., ed. 1836. S. 

 frugilis anil S. munna Lodd. Cat., ed. 1836. S. rubra G. Lodd. 



App. ii. Fragiles described, bid not yet introduced, or of doubtful 

 Identity with introduced Species. 



S.friigiin, mas ct fern., Host Sal. Aust., 1. p 5. t. 18, 19., Fl. Aust., 2. p. 635. S.fragilior, mas et 

 fem., Host Sal. Aust., 1. p. 6. t. 20, 21., Fl. Aust., 2. p. 6:16. S. fragilissima, mas et fern., Host Sal. 

 Aust., 1. p. 6 t.22, 2.3., Fl. Aust., 2. p. G36. ; synon. S. fragilis Host Syn., p. 527. S. palvstris, mas 

 et Kin., Host Sal. Aust., 1. p. 7. I. 'J+, [25., Fl. Aust., 2. p. 637. S. capensis Thunb. Fl. Cap., 1. 

 ]• 1 ,'., Smith in Reet'S Cyclo., under No. 42., resembles S. babylonica, and is probably a variety 

 of that species. S. subserrata Willd. Sp. l'l.,4. p. 671., Smith in Rees's Cyclo., No. 45. {S. Safsaf 

 l,u II, di lor>k. Cat. PI. /Egypt, 76.), is described as having a leaf very like that of S. babylonica. 

 {/ices'* Cyclo.) 



Group vi. Alb(E Borrer. 



Tree* of the largest Size, with the general Aspect of the Foliage whitish. 



1_ 



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

 i.iu. Leaves lanceolate, serrated with glauded serratures; hairy, espe- 

 cially while young, with apprcsscd silky hairs, which give to the foliage ;i 

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



lapted.) 



Id, S. \\v.\L. The whitish-leaved , or common white, Willow. 



n j/m Sp, PL, L440.J Willd. Sp. PL, 4. p. 710. ; 8m, Eng. not., t. 2430. ; Eng. FL.4 

 i -,,i. Wob , ■•• 13ft , Hook. I5r. PL, ed. :',. -, Mackay Fl. Hibern., pt. J. p. 247. ; 

 Hosl Sal Aust., I p. 9. ; Punh Fl. Amer. Sept,, 2. p. 616. 

 / /„ il, , tier. Etnac.. I >''i with a fig. ; .v. alba, part of, Koch Comm., 



don, or Swallow-tailed, Willow. [Pontey's Prof. Planter, ed. 1816, p. 92.) 



Both "<■ detcribed in Eng. F*/., and both figured in Eng. 

 W •,!, , Host Sai Aust., and Haunt Abblld. 

 i ,,/ Bot .' 2*30 ; Sal Wob '•< 13fl , Host Sal. Aust., 1. 1. 32. 33. j Hayne Abblld., 

 , in p 1629 and the plates of tbii tree in Our last Volume. 



