1546 ARBORETUM AND FRUTICETUM. PART III. 
barren as well as fertile individuals, of both species, agreeing exactly together 
in other respects, and differing alike from correlative ones of the other spe- 
cies, are now well known. In size and general habit, this most resembles 
S. glaica; but their discriminative marks are clearly discernible. The leaves 
of S. arenaria are rather smaller and shorter, more precisely ovate, with a 
little sharp point; their upper surface dark green, reticulated with sunk 
veins, and clothed with thin cottony down, more dense and soft upon the 
young ones; the under side pure white, with dense cottony wool ; the veins 
prominent; midrib reddish ; the young leaves, as well as the floral ones, beau- 
tifully silky beneath. (Jd.) Mr. Forbes states that he has plants of this willow 
with leaves not above half the size of those of others, owing to their being 
planted in a different soil; which will show, he says, “how much culture 
improves the size of these species of plants.” 
? Variety. 
& S.a. ? leucophilla; S. leucoph¥lla Schleicher. (Borrer in a letter.) — 
Koch has cited S. leucophylla Willd. Enum. Suppl., p.66., Berl. 
Baumz., p. 444. t. 6. f.3., as a state of S. limésa Wahlenb., distin- 
guished by having the under surface of the leaves less snowily 
tomentose : perhaps this is the same as Schleicher’s. 
x 66.°S. opova‘ta Pursh. The obovate-leaved, or Labrador, Willow. 
Identification. Pursh Fl. Amer, Sept., 2. p. 611.; Smith in Rees’s Cyclo., No. 91.; Forbes in Sal. 
Wob., No. 144 
The Sexes. The male is noticed in the specific character. 
Engravings. Sal.Wob., No. 144., a leaf; and fig. 144. in p, 1630. 
Spec. Char., &c. Stem diffuse, Leaves obovate, obtuse, entire; glabrous above, clothed with silky 
hairs beneath. Stipulesnone. Catkins sessile. Bracteas obovate, black and hairy attheend. Native 
to Labrador, and to the north-western coast of America. Flowering in May. Allied to S. arenaria 
L., and somewhat inclined to be upright. Stamens two. (Pursh.) Whether introduced, or not, 
is uncertain. 
? w? % 67. S. cANE’scENS Willd. The greyish Willow. 
Identification. Willd. Sp. Pl. 4. p. 687.; ? Enum. ; Smith in Rees’s Cyclo., No, 86. 
Synonyme. S. limdsa Wahlenb. var., Koch Comm., p. 55. 
The Sexes. The female is noticed in Willdenow’s description. 
Spec. Char., &c. Leaves oblong-lanceolate, acute, slightly serrated in the middle part’; glabrous and 
glossy on the upper surface, white and tomentose on the under one. Capsules ovate, tomentose. 
(Wilid.) Willdenow describes it more particularly from a female dried specimen, as follows : — 
Branches brown, rather downy when young. Leaves 2in. to 3in.long when young; canescent on 
the upper surface. Stipules not apparent. Catkin of the female cylindrical, lin. long. Capsule 
sessile. Native country not known with certainty ; though in Sweet’s Hort. Brit., ed. 1830, S. 
canéscens Willd. Enum. is stated to be a native of Germany, introduced into Britain in 1815. 
% 68. S. Stuarti4‘Né Smith. Stuart’s, or the smaill-leaved 
shaggy, Willow. 
Identification. Smith Eng. Bot., t. 2586.; Smith in Rees’s Cyclo., No. 84. ; Eng. Fl., 4. p. 203. ; Forbes 
in Sal. Wob., No. 72. ; Hook. Br FI., ed. 2., p. 419. 
Synonymes. S. arenaria masculina Smith Fl. Brit., p. 1059., Eng. Bot., t.1809. the text ; S. Lap- 
ponum Walker; S.limdsa Wahi. var. foliis angustiéribus lanceolatis Koch Comm., p. 55. 
Derivation. S. Stuartiana “‘ was named in compliment to one of the best men, and most learned 
ee that Scotland has produced, the late Rev. Dr. Stuart of Luss.” (Hook. Br. Fi., ed. 2., 
The Seaes. Both sexes are described in Eng. Flora: the female is figured iu Eng. Bot., and in Sal. 
Wob. 
Engravings. Eng. Bot.,t. 2586. ; Sal. Wob., No, 72, ; and jig. 72. in p. 1617. 
Spec. Char., §c. Leaves nearly entire, ovate-lanceolate, acute; shaggy above, 
densely silky, somewhat cottony, beneath. Style as long as the almost ses- 
sile woolly germen. Stigmas capillary, deeply divided, the length of the 
style. (Smith E.F.) A native of Scotland, on the Breadalbane Mountains ; 
where it flowers in June, and, in gardens, in July and August. Bushy, and 
copiously branched ; 2 ft. or 3ft., or rather more, in height. The branches 
dark brown ; downy when young, and leafy, cottony or silky at the tops. 
Leaves scarcely half the size of those of S. glaica and S.arenaria,and more 
lanceolate; rarely somewhat obovate, sharp-pointed; sometimes slightly 
wavy or toothed; the upper surface greyish green, shaggy or silky, partly 
denudated by culture, always very even, not wrinkled or veiny ; the under 
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