1540

ARBORETUM AND FRUTICETUM.

PART III.

This species is readily distinguished from the remaining ones be-longing to this section (with the exception of S. ineubacea), by itsvery silvery leaves and upright mode of growth. Both sexes aredescribed in Eng. FI. ; the female is figured in Sal. Wob. and HaymAbbild. There are plants at Woburn Abbey , Henfield, and FlitwickHouse, and also in the Goldworth Arboretum.

* 53. S. Doxia'na Smith. Don ’s, or the rusty-branched, Willow.

Identification. Smith in Eng. FI., 4. p. 213.Forbes in Sal. Wob., No. 85.; Hook. Br. FI, ed.3.,p. 424.; Borrer in Eng. Bot. Suppl., t. 2599.

The Sexes. The female is described and figured in Sal. Wob. and Eng. Bot The male has not yetbeen discovered.

Engravings. Sal. Wob., No. 85.; Eng. Bot., t. 2599.; our Jig. 1322.; and Jig. 85. in p. 1618.

Spec. Char., fyc., Leaves obovate-lanceolate, partly opposite, acute, slightlyserrated, even ; livid and somewhat silky beneath. Stipules linear. Brancheserect. Catkins erect, cylindrical. Ovary stalked, silky, longer than theobovate bearded bractea. ( Smith and Borrer.') Sent fromScotland, as British, by the late Mr. George Don . Itflowers in May. Stem 5 ft. or 6 ft. high, with straight,wand-like, round, leafy branches, of a reddish or rustybrown, scarcely downy, except when very young. Leaves Amostly alternate, but several of the lowermost pairs oppo- fe f I /isite; all nearly upright,flat; 1J in. long, uniform; broadest, m

and most evidently serrated, in their upper part, towards »the point; green, minutely veiny, and glabrous above ; livid,or in some measure glaucous, as well as finely downy or silky, beneath,with a prominent reddish midrib, and slender veins; the silkiness less evi-dent on the older ones. Footstalks short, very broad at the base, palerthan the branches. Catkins of female flowers appearing before theleaves, on short lateral stalks. (> Smith.') S. Don iana, in the female, which isthe only sex at present known to British botanists, assimilates to the kindsof the group Purpureas, except S. rubra Huds., in the aspect of the branches,shoots, leaves, and catkins; in some of the leaves being opposite; and inthe old bark being internally yellow, though less remarkably so than that 01these kinds; but it differs from them in having its leaves silky beneath,and its ovary stalked, and Mr. Borrer believes that, in the relation otaffinity, it is nearest to S. fusca; but he notices that we are without themeans of proof, which the male flowers would afford. There are planteat Woburn Abbey , Henfield, and Flitwick House, and in the GoldworthArboretum.

Group xii. Ambigiice Borrer.

Shrubs.

S. fimnarchica Willd. has been added to kinds included in this group by MuBorrer.

-* a 54. S. amui'gua Ehrh., Borrer. The ambiguous Willow.

Identification.. Borrer in I\m, Bot Sunni I 9.7SS . who lias adduced there the following reference

Fing. FI. Germ., 2.561.” (

Synonymes. Some are cited under the varieties treated of below ; S. amblgua Keen, paComm., p. 49. ,

The Sexes. Both sexes of var. a,, the female of var. /3, the male of var. y, and the female

are figured in Eng. Bot. Suppl.

Engraving. Engl. Bot. Suppl., t. 2733. ad [joint;

Spec. Char., tyc. Leaves oval, obovate, or lanceolate, slightly toothed, and having a recurvP 0 ^

pubescent, somewhat rugose above, glaucous and having prominent veins beneath. gtvle veryovate, acute. Catkins stalked, upright, cylindrical. Ovary stalked, densely silky- j, ea tiis, inshort. Stigmas short, at length cloven. ( Borr. in Bot. Suppl.) Indigenous on grave r n r ^ijev,Sussex, Essex, and Suffolk; and has been observed in Perthshire, Anguss hire, Caitnn >