SALICACEE. SILVA OF NORTH AMERICA. 115 
SALIX LASIANDRA. 
Black Willow. 
Leaves lanceolate, taper-pointed, often pale or glaucous on the lower surface ; 
petioles glandular. 
Salix lasiandra, Bentham, Pl. Hartweg. 335 (1857).— Salix Hoffmanniana, Hooker & Arnott, Bot. Voy. Beechey, 
Torrey, Pacific R. R. Rep. iv. pt. v. 188. — Newberry, 159 (not Smith) (1833). 
Pacific R. RK. Rep. vi. pt. iii. 89.— Bebb, Brewer & Salix arguta lasiandra, Andersson, Svensk. Vetensk. Akad. 
Watson Bot. Cal. ii. 84; Bot. Gazette, xvi. 103. — Sar- Handl. ser. 4, vi. 33 (Monographia Salicum) (1867) ; De 
gent, Forest Trees N. Am. 10th Census U. S. ix. 167. — Candolle Prodr. xvi. pt. ii. 206. 
Mayr, Wald. Nordam. 288.— Greene, Man. Bot. Bay Salix lasiandra, var. typica, Macoun, Cat. Can. Pl. 449 
Region, 299. * (1886). 
A tree, often sixty feet in height, with a trunk from two to three feet in diameter, and straight 
ascending branches which form an open irregular head and usually bear the largest leaves at their 
extremities ; or toward the southern limits of its range and in the interior of the continent much 
smaller and sometimes shrubby. The bark of the trunk is from one half to three quarters of an inch 
in thickness, dark brown slightly tinged with red, and divided by shallow fissures into broad flat scaly 
ridges broken by cross fissures into oblong plates. The branchlets are rather stout, and when they first 
appear are dark purple, reddish brown, or yellow, pilose with scattered hairs, or pubescent or tomentose, 
and often covered with a glaucous bloom, becoming before the end of the first season dark purple, 
bright reddish brown, or light orange-color. The buds are broadly ovate, acute, ight chestnut-brown 
and lustrous above the middle, pale at the base, and nearly a quarter of an inch in length. The leaves 
are involute in the bud, linear-lanceolate, long-pointed, gradually rounded at the narrowed base, and 
finely serrate with minute glandular teeth; when they unfold they are pilose on the upper surface 
and pubescent or tomentose on the lower, and at maturity are dark green and lustrous above, pale or 
glaucous below, conspicuously venulose, four or five inches long and from half an inch to an inch wide, 
with broad orange-colored midribs, slender arcuate veins, and glabrous or pubescent petioles from one 
quarter to one half of an inch in length, and furnished at the apex with two or more large dark glands. 
The first leaves are obovate or coated with thick lustrous white or rufous tomentum and fall soon 
after their appearance when they are only about an inch in length; those immediately above them and 
those on the flowering branches are oblong-obovate, gradually narrowed at the base and sessile or short- 
stalked, while those above these gradually assume the lanceolate form of the later leaves. The stipules 
are semilunar, glandular-serrate, small and deciduous or, on vigorous young shoots, usually large and 
foliaceous. The aments are terminal and pedunculate on leafy branches, arcuate, cylindrical, and from 
an inch and a half to two inches long, the staminate being sometimes a third of an inch in diameter 
when the flowers are expanded and nearly twice as broad as the pistillate aments; the scales are 
obovate, yellow, more or less villous below the middle, and glandular-dentate, especially those of the 
staminate ament, those of the pistillate being narrower and sometimes nearly entire. The stamens vary 
from five to nine in number, with free filaments hairy at the base. The ovary is cylindrical, lanceolate, 
glabrous, short-stalked, and tipped with a short style and spreading slightly emarginate stigmatic lobes. 
The capsule is light reddish yellow and about a quarter of an inch in length. A form of this species, 
Salix lasiandra, var. Lyall,’ varies in its longer leaves, tapering from the rounded or subcordate base, 
Sargent, Garden and Forest, viii. 463 (1895). Saliz lucida angustifolia lasiandra, Andersson, Ofvers. Vetensk. 
Salix speciosa, Nuttall, Sylva, i. 58, t.17 (uot Hooker & Ar- Akad. Forhandl. xv. 115 (Bidr. Nordam. Pilarter) (not Salix an- 
nott) (1842). gustifolia, Willdenow) (1858) ; Proc. Am. Acad. iv. 54. 
