1574- ARBORETUM AND FRUTICETUM. PART 111. 



when young, afterwards glabrous, or nearly so. and shining, green, or tinged, 

 especially in the female, with brown. Petioles downy> spreading, rather 

 long. Leaves by no means remarkably thin ; ovate or more or less rhomboid, 

 and having a short, decurved, somewhat twisted point; on strong you nil 

 shoots more oblong ; dark green above and moderately shining ; glaucous 

 beneath ; sprinkled, when young, on both surfaces with appressed hairs, 

 some of which remain in the advanced state; veins sunken on the upper 

 surface, very prominent on the under one ; margin rather closely serrate, or 

 rather crenate, especially about the middle of the leaf, with a glandular 

 tooth in the notches. Stipules small, except on very vigorous shoots, half- 

 heart-shaped, pointed, serrated, beset with glands on the edges and on the 

 lower part of the disk. Catkins appearing in May, before the expansion of 

 the leaves; cylindrical, about 1 in. long when in full flower. Flowers closely 

 imbricated. Stamens thrice as long as the bractea." There are plants at 

 Woburn, Henfield, and Flitwick, and also in the Uoldworth Arboretum. 



? Variety. Mr. Borrer states that he has, in his collection at Henfield, from 

 the same locality as the species, what seems a variety of it ; having silky 

 hairs on the upper half of the ovary and towards the base of its stalk. This 

 is, perhaps, the plant mentioned in the Flora Britannica, as deserving further 

 investigation. (Borrer in Eng. Sot. Suppl.) 



a 121. S. PROPI'NQUA Borr. The nearly related, or fiat-leaved, upright, 

 Mountain Willow. 



Iilentificaiion. Borr. in Eng. Hot. Suppl., t. 2729. ; Hook. Br. Fl., ed. 3. 



The Sexes. The female is described in the Specific Character , and described and figured \nEng. 



Bot. Suppl. 

 Engraving. Eng. Bot. Suppl., t. 2729. 



Spec. Char., $c. Upright. Young shoots pubescent with minute down. 

 Leaves elliptical, obscurely crenate, nearly flat, nearly glabrous on both 

 surfaces; veins slightly sunken ; under surface pale green. Stipules small, 

 vaulted, glanded. Ovaries stalked, silky towards the point. Style longer 

 ; than the notched stigmas. (Borrer in Eng. Bot. Suppl.) Finding in this 

 some apparently distinctive characters, we venture, after much hesitation, 

 to add another presumed species to a section of the genus, of which almost 

 every species is doubtful. It was discovered in Britain by Mr. Anderson, 

 and we know it only from plants received from him. Planted by the side 

 of S. petrae v a, it has attained, in the same period, scarcely half the height of 

 that. (Ibid.} S. petrse v a is, in some instances, more than 15ft. high. There 

 are plants at Henfield, and in the Gpldworth Arboretum. 



* 122. S. PETRJE'A Anders. The Rock Sallow, or Willow. 



Identification. First distinguished by Mr. G. Anderson, who is understood to have given to it the 

 name of S. petraTa. (Borrer in Ens. Bot. Suppl.) Forbes in Sal. Wob., No. 97. ; Borrer in Eng 

 Bot Suppl., t. 272*;. j Hook. Br. Fl, ed. 3. 



Sijnonymes. S. arbuscula Wahlnib., Koch Comm., p. 45., where Koch has remarked that he has thus 

 adjudged the S. petraj v a Antterson from a specimen derived from Anderson. " It is surely by error 

 that Koch has placed S. pctra'a under his S. arbCiscula, with S. phylicifolia Smith, and not under 

 hU own S.7>hylicifolia,with S. AmmanniAna and its allies." (Borrer in Eng.. Bot. Suppl.) If Koch 

 had known the S. petrae x a in the living plant, I believe that he would have referred it to his 

 own S. phylicifdlia. (Borrer in a letter.) 



Tfie Sexes. The female is described and figured in Eng. Bot. Suppl., and in Sal. Wob. 



Engravings. Sal. Wob., No. 97.; Eng. Bot. Suppl., t. 2725. ; and OUT fig. 97. in p. l(i'2<). 



Spec. Char., $c. Upright. Young shoots densely hairy. Leaves oblong, ser- 

 rated, carinate, twisted, reticulated with deeply sunken veins ; beneath, hairy, 

 glaucous, at length pale green. Stipules large, half-heart-shaped, flattish, 

 having few glands. Ovary stalked, naked, wrinkled towards the point. Style 

 divided, longer than the cloven stigmas. S. petra3 v a is nearly allied to S. 

 hfrta Smith Eng. Bot., t. 1404. ; and still more nearly, perhaps, to S. sty- 

 laris of Seringe Monogr. dcs Saulcs de Ifi Suissc, p. 62. (Borr. in Eng. Bot. 

 Suppl.) A British kind of willow, first distinguished by the late Mr. G. 

 Anderson, who communicated the plants from which our figure was drawn. 

 We have wild specimens from the mountains of Breadalbane. The kind is 

 3. shrub, in some instances upwards of 15 ft. high, with crooked ash-coloured 



