322 



SALJCACEAE Q WILLOW FAMILY) 



644. S. lucida. 



645. S. serissima. 



banks of streams, Nfd. to Man., s. to Pa., HI., and Neb. FIG. 

 644. Var. AXGcstirdLiA Anders. Leaves glabrous, elongate- 

 lanceolate, 1-1.5 cm. broad. Nfd. and e. Can. 



Var. intonsa Fernald. Branchlets of the first year and under 

 surfaces of the elliptic-lanceolate attenuate-based leaves per- 

 manently pubescent with sordid or rufous hairs. Que., N. B., 

 and n. and w. N. E. 



*+ ++ Leaves pale or white beneath ; fruit 

 mature in autumn. 



6. S. serissima (Bailey) Fernald. (AU- 

 TUMN W.) Leaves elliptic-lanceolate or ob- 

 long-lanceolate, short-acuminate, in maturity 

 coriaceous, 4-8 cm. long, 1-3 cm. broad, closely 

 serrulate; staminate aments 1-1.5 cm. long, 

 1-1.2 cm. thick ; the fertile becoming loosely 

 flowered, 2-3.5 cm. long ; the olive- or brown- 

 tinged finally lustrous indurated capsule conic- 

 subulate, 7-10 mm. long, the pedicel twice 

 exceeding the gland ; tall shrub. Mossy 

 swamps, mostly in calcareous regions, e. Que. 

 to Alb., s. to w. Ct., n. N. J., w. N. Y., and 

 the Great Lakes. FIG. 645. 



* * Stamens 2. 

 - Leaves lanceolate or ovate-lanceolate, long-acuminate, closely serrate. 



7. S. FRAGILIS L. (CRACK W.) Leaves glabrous from the first, green both 

 sides, or only slightly paler beneath, in maturity 1-1. 5 dm. long, 2.5-4 cm. broad, 

 rather coarsely undulate-serrate, with about 5 (4-7) teeth 

 to each cm. of the margin ; stipules when present half- 

 cordate ; aments slender ; the staminate 

 3-5 cm. long ; the fertile becoming 5-7 

 cm. long ; capsule subulate-conical, 5 mm. 

 long, short-pediceled. A large tree, early 

 planted, and now established, Que. to Ky. 

 Freely hybridizing with S. alba. (Nat. 

 from Eu.) FIG. 646. 



8. S. ALBA L. (WHITE W.) Leaves 

 pale with silky pubescence on both sides, 

 in maturity 5-12 cm. long, 1-3 cm. broad, 

 finely serrulate, with about 9 (6-12) teeth 

 to each cm. of margin ; stipules ovate- 

 lanceolate, deciduous ; capsule ovoid-coni- 

 cal, 3-5 mm. long, sessile or nearly so. 

 The typical tree, with greenish branch- 

 lets and leaves permanently silky, is sometimes planted and 

 rarely established in Am. FIG. 647. Var. vi- 

 TELLINA. (L.) Koch, with yellow or reddish 

 branchlets and the old leaves glabrous, white 

 beneath, is a familiar large tree of rapid growth, 

 646 s fraeilis commonly planted and freely spreading. Var. 



CAERCLEA (Sm.) Koch is similar, but with 

 olive-green branchlets and bluish-green leaves. Hybridizes with 

 S. fragilis, S. lucida, etc. (Nat. from Eu.) 



9. S. BABYLdNicA L. (WEEPING W.) Leaves at first silky, 

 quickly glabrate, pale beneath, in maturity 6-12 cm. long, 0.5-1.5 cm. 

 broad, very slender-attenuate, sharply toothed ; aments 1.5-2 cm. long ; 

 the sessile plump capsules 1-1.5 mm. long. Planted for ornament, 

 and locally spread along river-banks and lake-shores, particularly 648. 8. baby 

 from Ct westw. and southw. (Nat from Eu.) FIG. 648. lonica. 



9. alb*. 



