482 SALICACE.E. (willow FAMILY.) 



♦ * Leaves remotely denticulate with projecting teeth; stamens 2; capsule glabrous 



or silky. 



4. S. longifolia, Muhl. Leaves linear-lanceolate, 2-4' long, tapering 

 at each end, nearly sessile, more or less silky when young, at length smooth 

 and green both sides; stipules small, lanceolate, deciduous; aments linear- 

 cylindric, often clustered at the ends of the branchlets ; capsule shortly pedi- 

 celled ; stigmas large, sessile. — Found sparingly along the Atlantic coast from 

 Maine to the Potomac ; common westward. A shrub, rooting extensively in 

 alluvial deposits and forming dense clumps. This species is a peculiar Amer- 

 ican type, and exceedingly variable ; the earliest leaves after germination 

 l)innately lobed. 



§ 2. Aments lateral or terminal, with or without bracts ; scales persistent, colored 

 at the tip ; stamens 2 {usually 1 in n. 19), with glabrous filaments {united and 

 hairy in S. purpurea) ; shrubs or small trees. 



* Capsules tomentose. 

 H- Pedicels 3-6 times the length of the gland ; style medium or none, 

 -t-^ Large shrubs or small trees {S-lo° high) ; leaves obovate or elliptic-lanceO' 

 late, 2-4' long, acute or acuminate, more or less obscurely and irregularly 

 serrate, thin becoming rigid, glaucous beneath ; fertile aments oblong-cylindric, ^ 

 2-3' long, loosely fiowered. 



5. S. rostrata, Kichardson. Leaves dull green and doicny above, stoutly 

 veined and soft-hairy beneath, serrate, crenate or subentire; stipules Avhen pres- 

 ent semi-cordate, toothed, acute ; aments appearing with the leaves, the sterile 

 narrowed at base, pale yellow ; capsiiles 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. livida, 

 var. occidentalis, f^rray.) — Moi.st or dry ground, N. Eng. to Penn., and far 

 west and northward. N. t spreading from the root but having rather the habit 

 of a small tree, with a distinct trunk. 



6. S. discolor, Muhl. {(tLAUCOUS W.) Leavrs smooth and bright green 

 above, soon smooth lnr<e ith, irregularly crenate-serrate, the serratures remote at 

 base, closer, finer and becoming obsolete toward the point ; stipules |' long or 

 more, and sharply toothed, or small and nearly entire; aments closely sessile, 

 thick, oblong-cylindrical, V long or more, appearing before the leaves in earliest 

 spring; scales dark rc^ or brown, becoming block, copiously clothed with long 

 glossy hairs ; style short but distinct. — Var. eriocephala, Anders. Aments 

 more densely flowered and more silvery silky ; leaves sometimes retaining a 

 ferruginous pubescence beneath even when fully grown. — Var. prixoides, 

 Anders. Aments more loosely flowered, less silky ; capsules more thinly to- 

 mentose ; style longer ; stigma-lobes laciniate ; leaves narrower. (S. prinoides, 

 Pursh.) Includes narrow-leaved forms of the type, and others which are prob- 

 ably hybrids with S. cordata. — Low meadows and river-banks, common. The 

 just expanding leaves are often overspread with evanescent ferruginous 

 hairs. 



++ 4.V Upland grayish shmibs, 1-8° high; leaves oblanceolate, pointed, the low- 

 est obtuse, downy above becoming glabrate, beneath glaucous, rugose-veined 

 and softly tomentose, the margin revolute, undulate-entire ; aments ovoid or 



