822 



SALICACEAE Q WILLOW FAMILY) 



S. lucida. 



645. S. serissima. 



banks of streams, Nfd. to Man., s. to Pa., 111., and Neb. FIG. 

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

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



Var. int6nsa 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. 



H. *- 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. 



1. 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-i cm. broad, 

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

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

 cordate ; ameiits 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, 

 commonly planted and freely spreading. Var. 

 CAERtLEA (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. BABYLONICA 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-shbres, particularly 

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



647. S.alba. 



646. S. fragilis. 



V 



648. 8. baby 

 lonica. 



