322 



SAL1CACEAE ( WILLOW FAMILY) 



644. S. lucida. 



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

 (544. Var. ANGUSTIFOMA Anders. Leaves glabrous, elongate- 

 lanceolate, 1-1.6 cm. broad. Nfd. and e. Can. 



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

 surfaces of the elliptic-lanceolate attenuate-based leave* /<>/- 

 ma'nently pubescent with sordid or rufous hairs. Que., N. B., 

 and n. and w. N. E. 



M- *-< 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. 



645. S 



-- 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) taih 

 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 & alba. (Nat. 

 from Eu.) FIG. 646. 



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

 pale icith 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- / 



TKI.UNA (L.) Koch, with yellow or reddixlt 

 branchlets and the old leaves glabrous, white 

 beneath, is a familiar large tree of rapid growth, 

 commonly planted and freely spreading. Var. 

 CAERULEA (Sm.) Koch is similar, but with 

 branchlets and bluish-green leaves. Hybridizes with 



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



'.. S. BABYLONICA L. (WEEPING W.) Leaves at first silky, 



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



l>r< 'd<l. r,r 1 1 slender-attenuate, sharply toothed ; aments 1.5-2 cm. long ; 



the sessile plump c<ij>snl<'x 1-1.5 mm. long. Planted for ornament, 



and locally spread along river-banks and lake-shores, particularly C4S. s. 



from Ct. westw. and south w. (Nat. from Eu.) FIG. 648. 



647. s. alba. 



G46. S. fragilis. 



louica. 



