326 



SALICACEAE (WLLLUW FAMILY) 



ameiits ovoid-cylindric, at first 1-2 cm. long, in fruit broad and loose from the 

 lengtliening of the pedicels, becoming 2-4 cm. long ; capsule rostrate from an 

 ovoid base, blunt. — Low shrub of damp soil, N. B. to the Great Lake region 

 and Man., s. to Tenn. Fig. 659. 



= = Mature leaves pubescent at least beneath. 



a. Aments sessile on the old wood, naked at base, appearing before the leaves. 



1. Leaves dull, grayish-tomentose, undulate-crenate or subentire; capsules slen- 



der-beaked. 



|/21. S. himilis Marsh. (Praikie W.) Leaves oblanceolate or oblong-lan- 

 ceolate, rarely obovate, 5-15 cm. long, above downy becoming glabrate, beneath 

 glaucous, rugose-veined and softly tomentose, the margin revo- 

 lute, undulate-entire ; stipules medium-sized, semi-ovate, entire 

 or oftener toothed ; petioles distinct ; aments ovoid or ellipsoid, 

 often recurved, 1.5-4 cm. long. — Dry plains and barrens, Nfd. 

 to Minn, and N. C. — A shrub, 1-3 m. high, vary- 

 ing much in the size and shape of the leaves. 

 Fig. 660. 



Var. rigidiiiscula Anders. Leaves narrowly 

 oblanceolate to lance-ublong, 0.5-1 dm. long, rigid, 

 strongly ascending, very rugose and glabrescent 

 beneath. — 0. to Ga. and Kan.- — Shrub or small 

 tree. 

 660. S, liumills. £-^ 22. S. tristis Ait. (Dwakf Gray W.) Leaves 

 similar to those of the last, small (1-5 cm. long), 

 crowded, linear-oblanceolate, tapering to a very short petiole ; 5gj_ g_ \i\s^ 

 itipules minute, deciduous ; aments very small, globular or ovoid, 

 1-1.5 cm. long in fruit. — Sandy plains or on tlie borders of hillside thickets, 

 N. E. to Minn, and southw., mostly near the coast. — A tufted shrub, 0.5 m. 

 high. Fig. 661. 



2. Leaves lustrous beneath loith minute silky pubescence, Jine-serrate ; capstiles 



blunt. 



23. S. serlcea Marsh. (Silky W.) Leaves narrowly lanceolate, 0.4-1 dm. 

 long, 1-2.5 cm. broad, finely serrate, at first (principally beneath) very silky, 

 turning black in drying ; stipules narrow, deciduous ; aments nar- 

 rowly cylindrical, the fertile densely flowered, in maturity 2—3 cm. 

 long; capsule sericeous, ovoid-oblong, round-tipped, its pedicel 

 about equaling the short-hairy scale and twice exceeding the gland. 

 — Large shrub of wet places, N. B. to N. C. and Mich. Fig. 662. 



b. Aments leafy-bracted at base, appearing with the 



1. Leaves strongly rugose in age, grayish-pubes- 

 cent or glabrate beneath; capsule gray-pubes- 

 cent, its pedicel several times exceeding the 

 subtending scale. 



24. S. rostrkta Richards. Leaves obovate to 

 elliptic-lanceolate, .3-10 cm. long, acute or acumi- 

 nate, dull green and minutely downy above, serrate, 

 crenate, or subentire, thin, becoming rigid ; stipules when pres- 

 ent semi-cordate, toothed, acule ; sterile aments narrowed at 

 base, the /erti7e loosely flowered, 2-6 cm. long; capsules tapering 

 to a very long slender beak ; pedicels thread-like, much exceeding 

 the pale rose-tipped linear thinly villous scales ; style scarcely 

 any ; stigma lobes entire or deeply parted. {S. Bebbiana Sarg.) 

 — Shrub or small tree of moist or dry ground, Nfd. to Alaska, 

 s. to N, J., Pa-, III, la., etc, Fig. 6(i3. 



leaves. 



