1'574

ARBORETUM AND FRUT1CETUM.

PART I)].

when young, afterwards glabrous, or nearly so, and shining, green, or tinged,especially in the female, with brown. Petioles downy, spreading, ratherlong. Leaves by no means remarkably thin ; ovate or more or less rhomboid,and having a short, decurved, somewhat twisted point; on strong youngshoots more oblong; dark green above and moderately shining; glaucousbeneath ; sprinkled, when young, on both surfaces with appressed hairs,some of which remain in the advanced state; veins sunken on the uppersurface, very prominent on the under one ; margin rather closely serrate, orrather crenate, especially about the middle of the leaf, with a glandulartooth in the notches. Stipules small, except on very vigorous shoots, half-heart-shaped, pointed, serrated, beset with glands on the edges and on thelower part of the disk. Catkins appearing in May, before the expansion ofthe leaves; cylindrical, about 1 in. long when in full flower. Flowers closelyimbricated. Stamens thrice as long as the bractea.” There are plants atWoburn, Henfield, and Flitwick, and also in the Goldworth Arboretum.

? Variety. Mr. Borrer states that he has, in his collection at Henfield, fromthe same locality as the species, what seems a variety of it; having silkyhairs on the upper half of the ovary and towards the base of its stalk. Thisis, perhaps, the plant mentioned in the Flora Britannica , as deserving furtherinvestigation. ( Borrer in Eng. Bot. Suppl .)

a 31 121. S. propi'nqtja Borr. The nearly related, or flat-leaved, upright,Mountain Willow.

Idenifficaiion. Borr. in Eng. Bot. Suppl., t. 2729.; Hook. Br. FI., ed. 3.

The Sexes. The female is described in the Specific Character > and described and figured in Eng.Bot. Suppl.

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

Spec. Char., fyc. Upright. Young shoots pubescent with minute down.Leaves elliptical, obscurely crenate, nearly flat, nearly glabrous on bothsurfaces; veins slightly sunken; under surface pale green. Stipules small,vaulted, glanded. Ovaries stalked, silky towards the point. Style longerthan the notched stigmas. ( Borrer in Eng. Bot. Supjil.) Finding in thissome apparently distinctive characters, we venture, after much hesitation,to add another presumed species to a section of the genus, of which almostevery species is doubtful. It was discovered in Britain by Mr. Anderson,and we know it only from plants received from him. Planted by the sideof 8. petrae'a, it has attained, in the same period, scarcely half the height ofthat. ( Ibid .) S. petrse'a is, in some instances, more than 15 ft. high. Thereare plants at Henfield, and in the Goldworth Arboretum.

st 122. S. petr-e'a Anders. The Rock Sallow, or Willow.

Identification. First distinguished by Mr. G. Anderson, who is understood to have given to it thename of S. petras'a. ( Borrer in Eng. Bot. Suppl.) Forbes in Sal. Wob., No. 97. > Borrer in Eng-Bot. Suppl., t. 2725. j Hook. Br. FI., ed. 3.

Synonymes. S. arbuscula Wahlenb., Koch Comm p. 45., where Koch has remarked that he has thus* adjudged the S. petrje'a Anderson from a specimen derived from Anderson. “ It is surely by error. that Koch has placed S. petrse'a under his S. arbtiscula, with S. phylicifblia Smith , and not underhis own &/?hylicif61ia, with S. Ammanmawa and its allies.” ( Borrer in Eng. Bot. Suppl.) _u hocnhad known the S. petrae'a in the living plant, I believe that he would have referred it toniown S. phylicifblia. (Borrer in a letter.)

The 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 our fig. 97. in p. 1620.

Spec. Char., §c. Upright. Young shoots densely hairy. Leaves oblong, ser-rated, carinate, twisted, reticulated with deeply sunken veins; beneath, hairyglaucous, at length pale green. Stipules large, half-heart-shaped, flatfish,having few glands. Ovary stalked, naked, wrinkled towards the point. Styledivided, longer than the cloven stigmas. S. petrae'a is nearly allied to »■hirta Smith Eng. Bot., t. 1404.; and still more nearly, perhaps, to S. sty-laris of Seringe Monogr, des Saules de la Suisse, p. 62. {Borr. in Eng. oo-Suppl!) A British kind of willow, first distinguished by the late Mr.Anderson, who communicated the plants from which our figure wasWe have wild specimens from the mountains of Breadalbane. The km3 shrub, in some instances upwards of 15 ft. high, with crooked ash-coloure