652 Order 122.— SALIOACE^. 



1 S. trfstis Ait. Sage Willow. I/os. linear-lanceolate or oblanoeolate, cuneate 

 at base, entire or remotely undulate-toothed, margin subrevolute, apex acute or 

 obtusiali ; stip. minute, narrow-lanceolate, cadticous ; amenta very small ; scales or>- 

 bicular-oblong, hairy at the margin ; ova. with grayish, silky pubescence ; siy. 

 short. — ^Sandy or dry fields, borders of woods, pastures, N. Eng. to "Wis. and Car. 

 A small, downy shrub, with a profusion of naked aments. Leaves at length nu- 

 merous, often crowded and rosulate at the ends of the branches, 1 — 2' long, ta{>er- 

 ing from above the middle to a very short petiole, the margin often revolute, 

 under surface glaucous, often pubescent. Varies with the twigs and the dimin- 

 ished Ivs. grayish white. 



2 S. Muhlenberghi^na Barratt. Lvs. oblanceolate, remotely serrate, glabrous 

 above, pubescent and not rugous beneath ; young branches smooth ; stip. lunate, 

 aubdentate ; cmienis precociou,?, diandrous ; scales lanceolate, obtuse, villous ; ova. 

 pedicellate, lanceolate, silky ; sty. long, bifid ; siig. 2-lobed. — A shrub in dry 

 soils, N., Mid. and W. States, 4 — 8f high, with brown twigs. On the ends of 

 these, cone-like excrescences are often produced by the punctures of inseeta 

 Aments, covered with very hairy scales, appearing before the leaves in April. 

 (S. humilis Marshall? S. conifera Muhl.) 



3 S. Candida "VVilld. "White Willow. Lvs. lanceolate or linear-lanceolate, 

 veiy long, obscurely serrulate at the summit, pubescent above, hoary-tomefitous 

 beneath, revolute on the margin ; stip. lanceolate, as long as the petioles ; amenta 

 cylindrio; scales obovate, obtuse, very long, hairy; stig. 2-lobed. — A beautiful 

 species in shady woods. Mid. and W. States. Stems 4 — 6f high. Leaves 8 — 12' 

 by 1 — 2'. Catkins dense, white with dense wool. Styles and stigmas dark red, 

 ^' in length. Apr., May. 



4 S. discolor Muhl. Branches pubescent when, young, bro'wnish or greenish; 

 lvs. oblong or obovatc-nhloug, acute or rather acuminate, remotely serrulate- 

 toothed, pube.soent wliLu young, glaucous beneath; strip, lunate, entire, or with 

 obtuse teeth; amente oblong-cylindric, silky, erect; scales very hairy, oblanceolate, 

 acute ; ovaries on short pedicels, densely silky. — Shrub or small tree, T to 15f 

 high, in wet places, N. Eng. to 111. and Car. Lvs. 2 to 5' long, finally glabrous, 

 the stipules usually conspicuously toothed at base. Aments 1' to 18" in flower, 

 tlie fertile at length 2' or more. Sterile dense, silky white. 



5 Seriocephala Mx. Woolly-headed Swamp Willow. Branchlets very pu- 

 bescent, brown or purplish ; lvs. lauceolate-eUiptio or oblong, cuneate at base, 

 entire or remotely serrulate above, under surface glaucous or ferruginous, both 

 surfaces pubescent when young, at length the upper surface green and nearly 

 smooth; stip. semicordate, with sharp serraiures, aments oval-oblong, densely vii- 

 ious; scales obovate, obtuse. — A small tree, putting forth its large and exceedingly 

 woolly catkins in Apr. Grows in swamps, N. Eng. 



6 S. sensitiva Barratt. Frost or Tender Willow. Lvs. ovate-lanceolate, 

 acuminate, cuneate and entire at base, finely serrate at the apex, and more dis- 

 tantly and strongly serrate towards the base, glabrous and rather thin ; stip. sub- 

 falcate, serrate ; S aments rather lax ; scales rather lax, lightly clothed with grayish 

 black hairs. — A small tree about 15f high, found in various parts of N. Bug., &0. 

 The aments and twigs are frequently destroyed by frost at flowering time, being 

 thinly protected with hairs. Lvs. smooth, 3 to 5' by IJ to 2'. Aments l-J-' 

 long. 



7 S. serioea Marsh. Gray Willow. Lvs. lanceolate, serrulate, acuminate, 

 smooth above, siiky beneath ; stip. ovate-oblong, denticulate, deflected, deciduous ; 

 scales oblong, hairy, black at the tip, rather longer than the pedicel of the oblong, 

 silky ovary ; stig. sessile, obtuse. — A shrub 6 to 8f high, in inundated meadows, 

 N. Eng. to Wis. and Va. Branches purplish, long and slender, very tough, ex- 

 cept at the base, where they are very brittle. Lvs. 2 to 4' by J to 1'. S Amenta 

 very abundant, J' long. (S. grisea Willd.) 



8 S. petiol^ris Smith. Long-stalked Greeu Osiek. Lvs. lanceolate, serrate, 

 acuminate, smooth, glaucous beneath, silky at base, mostly inequilateral ; stip. In- 

 nate, dentate ; aments appearing before the leaves ; scales lax, obovate, obtuse, 

 hairy, black, shorter than the pedicel of the ovoid-acv,minaie, silky ovary ; stigma 

 2-lobed, slwrt-styled. — Low grounds, banks of streams, Conn, to 111. and S. Cet 



