504 CXXVII. SAL1CACE.E. SALIX. 



18. S. LUCIDA. Muhl. 



Lvs. ovate-lanceolate, long-pointed, rounded at base, smooth and shining ; 

 stip. oblong, serrate ; aments triandrous ; scales lanceolate, obtuse, serrate and 

 smooth at the tip, hairy at the base ; ovaries lanceolate-subulate, smooth ; style 

 bifid; stigmas obtuse. A small and beautiful tree, common in N. Eng., Middle 

 States, Mich, and British Am. Trunk 13 15f high, 3 1' diam. Branches 

 smooth, dark, shining green. Leaves broad and glossy, dark green above, 

 tapering to a long point. May. 



19. S. NIGRA. Marshall. Black Willow. 



Lvs. lanceolate, acute at each end, serrulate, smooth and green on both 

 sides, petiole and midvein above tomentose ; stip. dentate ; aments erect, cylin- 

 dric, villous ; scales oblong, very villous ; fit. 3 6 (generally 5), bearded at base ; 

 ova. pedicellate, ovoid, smooth ; sty. very short ; stig. bifid. A small tree, on the 

 btnks of rivers, chiefly in N. Y. and Penn. Branches very brittle at base, pale 

 yellow. The trunk has a blackish bark. Sterile aments 3' long. May. 



20. S. PURSHIANA. Spreng. (S. falcata. Hook.) Pursh's Willow. 



Lvs. very long, lance-linear, often falcate, gradually attenuate to the apex, 

 acute at base, finely dentate-serrate, smooth on both sides, silky pubescent when 

 young ; stip. somewhat lunate or obliquely reniform-cordate, dentate, reflexed ; 

 ova. glabrous, pedicellate ; sty. short. Readily recognized by its very long, fal- 

 cate leaves and the broad persistent stipules. Grows in swamps and margins 

 of ponds, Middle States, N. Eng., Western States, Can. It is a shrub orsmall 

 tree, with a slender trunk sometimes 30 or 40f high. Leaves green both sides, 

 68' long. Aments 2' long. 



6. ALBEJE. Borrer. Trees of the largest size, with lanceolate, serrate leaves, the 

 serratures glandular, lower surface clothed with long, appressed, silky hairs, often 

 the upper also, giving to the foliage a whitish or bluish hue. Aments lax. Stamens 

 2. Ovaries glabrous. 



21. .S. ALBA. White Willow. 



Lvs. elliptic-lanceolate, regularly glandular-serrate, silky beneath, often 

 above, acute at apex ; ova. ovoid, acuminate, glabrous, subsessile ; stig. short, 

 recurved, deeply cleft ; sta. 2, with hairy filaments ; scales short, pubescent at the 

 margin. A large tree of rapid growth* native of Europe, introduced in Mass. 

 (Emerson) and probably in other states. 



/?. cozruka. (Blue Willow.) Lvs. of a bluish hue, less silky beneath. A tree 

 of rapid growth, completely naturalized in Mass. Emerson 



22. S. VITELLINA. Yellow Willow. Golden Osier. 



Lvs. lanceolate, acuminate, with thickened serratures, smooth above, paler 

 and somewhat silky beneath ; stip. ; aments cylindric ; scales ovate-lanceolate, 

 pubescent outside ; ova. sessile, ovate-lanceolate, smooth ; stig. subsessile, 2-lobed. 

 This willow was probably introduced, but is now very common by roadsides, 

 &c. It is a tree of moderate height, with shining yellow branches. May. 



23. S. BABYLONICA. Babylonian or Weeping Willow. 



Branches pendulous ; Ivs. lanceolate, acuminate, smooth, glaucous beneath , 

 stip. roundish, oblique, acuminate ; ova. sessile, ovate, smooth. This elegant 

 species has been introduced from the East, and cultivated until nearly natural- 

 ized. The long, slender, drooping branchlets very naturally indicate the Eng- 

 lish name of the tree, and give it a place in the church-yard to " weep" over the 

 remains of the departed. The Latin name was happily suggested to Linnaeus 

 by the 137th Psalm: 



" By the rivers of Babylon there we sat down : 



Yea, we wept, when we remembered Zion. 



We hanged our harps upon the willows in the midst thereof." 



7. FULVJE. Borrer. 



24. S. ROSTRATA. Richardson. Beaked Willow. 



Branches erect, straight, pubescent, at length smooth ; Ivs. broadly or obo- 

 vate-lanceolate, acute, subentire, at length coriaceous, smooth above, glaucous- 

 pubescent beneath ; stip. semicordate, dentate ; aments short, cylindric, dense, the 

 fertile ones becoming very long and loose ; scales oblong, membranous, hairy at 



