504 CXXVII. SALICACE^. Salis. 



18. S. LUCiDA. Muhl. 



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

 sftp. oblong, serrate ; ameMifs triandrous; scales lanceolate, obtuse, serrate and 

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

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

 States, Mich, and British Am. Trunk 13— 15f high, 3—4' diam. Branches 

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

 tapering to a long point. May. 



19. S. NIGRA. Marshall. Bla^k 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, veiy villous ; fil. 3 — 6 (generally 5), bearded at base ; 

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

 banks 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 wherL 

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

 }tva. glabrous, pedicellate ; sty. short. — Readily recognized by its very long, ial- 

 cate leaves and the broad persistent stipules. Grows in swamps and margini-, 

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

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

 S— 8' long. Aments 2' long. 



§ 6. AlbEjE. Borrer. Trees of the largest size, with lanceolate, serrate haves, ths 

 serratures glandular, loicer surface clothed loith long, oppressed, silky liairs, often 

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

 2. Ovaries glabrous. 



21. S. Ai.BA. Wiite 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 th-a- 

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

 (^Emerson) and probably in other states-. 



/?. c(0rulea. {Blue Willmc.) Lvs. of a bluish hue, less silky beneath. — Atreer 

 of rapid growth, completely naturalized in Mass. Emerson 



22. S. viTELLiNA. Yellow Willmv. Golden Osier. 



Lvs. lanceolate, acuminate, with thickened serratures, smooth above, pale? 

 and somewhat silky beneath ; stip.O; aments cyMndiic; scaZes ovate-lanceolate. 

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

 —This willow was probably inti-oduced, but is now very common by roadsides,. 

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



23. S. Babtlonica. Babylonian or Weeping WilUw. 



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

 sl'ip. roundish, oblique, acuminate ; ova. sessile, ovate, smooth. — This elegant 

 .-pecies 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 Linnsgu^ 

 by the 137th Psalm: 



" By the rivers o? Baiylon there we sat down : 



Yea, we wept, when we remembered Zion. 



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



§ 7. FuLviE. Borrer. 



2-1:. S. eostrata. Richardson. Beaked Willow. 



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

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

 pubescent beneath ; slip, semicordate, dentate ; avieoits short, cyiindric, dense, the 

 fertile ones becoming very long and 'oose ; scales oblong, membranous, hairy aA 



