a.91) CLASSIFICATION AND DESCRIPTION 165 
7. Salix pentdudra, L. (LaureEt- 
LEAVED OR Bay WILLOW.) Leaves 
ovate, taper-pointed, erenate, glandu- 
lar, smooth, glossy, bright deep green 
on both sides, strongly fragrant when 
bruised. Catkins large, fragrant, gol- 
den-yellow, with 4 to 12 (commonly 
5) stamens to each flower. June, af- 
ter the leaves are expanded. A small 
handsome tree, 15 to 20 ft. high, from 
Europe, which should be more ex- 
tensively cultivated in damp soils, as 
its form, flowers, and foliage are all 
beautiful. S. penténdra. 
8. Salix cordata, Miihl. (Hreart-LEAVED WILLOW.) Leaves lan- 
ceolate or ovate-lanceolate, heart-shaped, truncate or sometimes 
acute at base, taper-pointed, sharply serrate, smooth above, pale- 
downy beneath; stipules often large, kidney-shaped, and toothed, 
S. cordata, Var. rufescens, 
sometimes small and entire. Catkins appearing with or before the 
leaves along the sides of the stem; stamens 2; scales dark or black, 
hairy, persistent. Shrub or small tree, 8 to 20 ft. high, very common 
in low and wet places. Many named varieties are found. 
Var. rigida has large, thick, coarse-toothed 
leaves; vars. myricoides and angustata have 
narrower, finely serrate leaves, almost or fully 
acute at base. 
9. Salix purptrea, L. (PURPLE WILLOW.) 
Leaves lanceolate, pointed, partly opposite, 
minutely serrate, smooth. Twigs olive-color 
