ARBORETUM ET FKUTICETUM BHITANNICUM. 



3fe 53. S. DoxiA^NA Smith. Don's, or the rusty -branched, Willow. 

 Identification. Smith in Eng FL, 4. p. 213. ; Hook. Br. Fl., ed. 3., p. 424. ; Borrer in Eng. Bot- 

 Thelexes 1 .' The female is described and figured in Sal. Wob. and Eng. Bot. The male has not yet 

 Engravings.^'. Wob., No. 85. ; Eng. Bot., t. 2599. ; our fig. 1454. ; and fig- 85. in p. 806. 



Spec. Char., $c. Leaves obovate-lanceolate, partly opposite, 

 acute, slightly serrated, even; livid and somewhat silky 

 beneath. Stipules linear. Branches erect. Catkins erect, 

 cylindrical. Ovary stalked, silky, longer than the obovate 

 bearded bractea. (Smith.) A shrub, with straight, wand-like, 

 round, leafy branches, of a reddish or rusty brown, scarcely 

 downy, except when very young. Scotland, on moun- 

 tains. Height 5 ft. to 6 ft. Flowers yellow ; May. 



Group xii. Ambigua Borrer. 

 Shrubs. Prin. sp. 54. and 58. 



S. finmarchica Willd. has been added to the kinds included in this group by 

 Mr. Borrer. 



~* tt 54. S. AMBI'GUA Ehrh., Borrer. The ambiguous Willow. 



Identification. Borrer in Eng. Bot. Suppl., t. 2733. ; Hook. Br. Fl., ed. 2., p. 418. 



Synonymes. Some are cited under the varieties treated of below ; S. ambigua Koch, part of, Koch 



Com?n., p. 49. 

 The Sexes. Both sexes of var. , the female of var. ft, the male of 



var. y, and the female of var. S are figured in Eng. Bot. Suppl. 

 Engravings. Eng. Bot. Suppl., t. 2733. ; and our fig. 1455. 



Spec. Char., fyc. Leaves oval, obovate, or lan- 

 ceolate, slightly toothed, and having a recurved 

 point j pubescent, somewhat rugose above, glau- 

 cous and having prominent veins beneath. 

 Stipules half-ovate, acute. Catkins stalked, 

 upright, cylindrical. Ovary stalked, densely 

 silky. Style very short. Stigmas short, at 

 length cloven. (Borr.) A small decumbent 

 shrub. Sussex, Essex, and Suffolk ; and various 

 parts of Scotland. Height 6 in. to 1 ft. Flowers 

 yellow ; May. 



It varies much in the procumbent, ascending, or more erect manner of its 

 growth, in the paler or darker brown tinge of the twigs, and in the quantity 

 of pubescence. 

 Varieties. 



-* j S. a. 1 vulgdris. S. a. JBorr. in Eng. Sot. Suppl. t. 2733., 5 figures 

 of the two sexes, and description. A small straggling shrub, with 

 branches sometimes procumbent, sometimes rising 1 or 2 feet from 

 fche ground. 



Sfe S. a. 2 major. S. a. j8 major Borrer in Eng. Bot. Suppl. t. 2733., 3 

 figures of the female, and description ; ? S. ambigua Hook. Br. Fl. 

 ed. 2. p. 418. ; S. versifolia Sering. Saules de la Suisse No. 66., 

 Monogr. 40. (Borrer.) Foliage silvery. 



S. a. 3 spathulata. S. a. 7 spathulata Bor. in Eng. Bot. Suppl. t. 2733., 

 where 3 specimens of the male plant are figured and described ; 

 S. ambigua 7 Hook. Br. Fl. ed. 2. p. 418. ; S. spathulata Willd. Sp. 

 PI. 4. 700. ; S. spathulata Willd. Scarcely differs from S. ambigua 

 vulgaris, except in the narrower base of the leaf. 



1455. S. ambigua. 



