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SALIX SALICACE A 619 
elosely sessile: style evident; stigmas linear, several times longer than 
thick. On sand bars along rivers, Oregon and Washington. 
S. macrostachya Nutt. |. c. A shrub or small tree 3-18 feet high, of- 
ten in dense thickets. with light brown bark and cinereous branches, the 
young branchlets villous: leaves 2-3 inches long, sessile, oblanceolate to 
elliptical, acute at both ends, more or less villous-pubescent, entire or 
nearly so: stipules obsolete: aments on short leafy lateral branchlets, ap- 
pearing after the leaves, 1-2 inches long: lower half of the filaments crisp- 
villous: capsule closely sessile, clothed with long lax hairs: style evident; 
stigmas linear. Margins of ponds, Oregon to California. 
§ 3 Shrubs or small trees. Scales of the aments persistent, 
darker at the apex. 
S Scouleriana Barratt in Hook. Fl. ii, 145. S. flavescens Nutt. A 
shrub or small tree 10-50 feet high, with light gray bark and cinereous 
branchlets: leaves oblanceolate to oblong or elliptic, obtuse to acute or 
acuminate, narrowed below to short petioles, entire or serrulate, 1-6 inches 
long, glabrous and dark green above, pale and more or less pubescent and 
becoming rusty in age beneath: stipules ovate to oblong, large and persis- 
tent on vigorous shoots: aments appearing long before the leaves, very 
densely flowered; staminate aments sessile, about an inch long and half as 
thick, the orbicular to oblong scales black or red at the apex, densely 
woolly with long white hairs: stamens 2, distinct; the filaments glabrous: 
_ pistillate aments short-peduncled, 1-2 inches long when mature, the scales 
oblong to lanceolate, silky with long white hairs: capsule oblong with a 
stout beak, pubescent, on pedicels a line or more long, maturing before the 
leaves appear; stigma sessile. Common from Brit. Columbia to California 
and the Rocky Mountains. 
S. bella Piper Bull. Torr. Bot. Club xxvii, 399. A shrub or tree 6-12 
feet high with slender erect branches and smooth gray bark: branchlets 
shining yellow, usually glabrous, very brittle: leaves lanceolate to oblong 
or oblong-obovate, acute, 1-3 inches long, green and glabrate above, densely 
silvery-woolly beneath, entire or nearly su, short-petioled: stipules lunate, 
usually persistent: aments appearing before the leaves; staminate sessile, 
short and thick, 6-12 lines long; scales acute, black, densely villous: sta- 
mens 2: pistillate aments short-peduncled, 6-18 lines long; scales black, 
obtuse, densely villous: capsules silky-hairy, nearly sessile: style about a 
line long. Along the Palouse river eastern Washington. 
S. Geyeriana Anders. Sal. Monogr. 86, fig. 50. A shrub 10-15 feet 
high, the branchlets usually covered with a glaucous bloom: leaves lanceo- 
late, acute at both ends 2-3 inches long by 4-6 lines wide, downy above, 
grayish beneath with soft silky hairs, entire: stipules none: aments at first 
small, subglobose, nearly equaled by the 8 or 4 silky bracts at their base, 
becoming short-peduncled in fruit: scales tawny, obtuse, sparingly villous: 
capsule tapering from an ovate base, silky tomentose: pedicels slender, 
puberuient, 4-5 times as long as the nectary : stigmas sessile, bifid. Oregon 
to California and the Rocky Mountains. 
S. Hookeriana Barratt 1. c. 445. A large shrub or small tree 10-50 
feet high, with dark rough bark and gray pubescent branchlets: leaves 
lanceolate to oblong or eiliptic, 1-5 inches long, green and smooth above, 
densely tomentose beneath, entire, rounded at base, short-petioled : aments 
appearing before the leaves, the staminate very densely flowered, 1-3 inches 
long, the scales densely tomentose with long white hairs. Along the coast, 
Oregon and Washington. 
S. rostrata Richardson Franklin Journ. App. 753. A much branched 
shrub 6-9 feet high, with elongated branchlets: leaves oblong to lanceolate 
