~ 
174 SALICACEAE 
rarely escaped. Twigs very slender, green, flexible. Leaves linear Jance- 
shaped, tapering about equally toward both ends; 3 to 6 in. long; borders 
scarcely toothed or notched, smooth, dark green above, silver white and 
silky beneath. Pedicel of capsule wanting or very short. 
20. §. adenophylla, Hook. (Fig. 9, pl. 23a.) Furry WiLLow. Shrub 
3 to 9 ft. high, with broadly lance-shaped or egg-shaped leaves. The twigs, 
leaves and stipules clothed, even when the leaves are fully grown, with a 
dense covering of long silky hairs. Leaves 1 to 2 in. long, sharply pointed 
at apex, rounded at base, with close and fine serrations at the borders. 
Stipules heart-shaped at base, conspicuous. Catkins long, densely flow- 
ered. Lake and river shores, throughout our region. 
21. §. cordata, Muhl. (Fig. 3, pl. 22.) HEART-LEAVED WILLOW. 
Shrub 5 ft. or more high, rarely 10 or 12 ft. high. Leaves broad lance- 
shaped, often heart-shaped at base, 13 to 3 in, long, sparingly or not at 
all notched, both upper and lower surface nearly green. Pedicel of 
capsule less than } the length of capsule and style. In wet soil, common. 
22. §. phylicifolia, L. (Fig. 16, pl. 23a.) TEA-LEAVED WILLOW. 
Shrub, 1 to 10 ft. high; leaves broad lance-shaped or elliptic, tapering 
nearly alike at both ends; smooth both sides, the lower lighter in color 
than the upper, 14 to 3 in. long. Pedicel of capsule very short. Moist 
ravines toward the summit of the White Mountains. 
23. §S. balsamifera, Barratt. (Fig. 10, pl. 23a.) Batsam WILLow. 
Shrub with egg-shaped leaves rounded or somewhat heart-shaped at base, 
2 to 3 in. long. Pedicel of capsule about as long as capsule and style. 
Swamps in the northern section of our region. 
24. §. candida, Fluegge. (Fig. 11, pl. 23a.) Hoary WitLow. Small 
shrub, 2 to 5 ft. high. Young twigs white, hairy, later becoming red or 
purple. Leaves with smooth borders or sparingly toothed, narrow or 
elliptic-lance-shaped, persistently white and silky beneath, green and some- 
what silky above, 2 to 4 in. long. Pedicel of capsule very short. In 
swamps, most of our area. 
25. §. tristis, Ait. (Fig. 12, pl. 23a.) Sacre WitLtow. Shrub 1 to 2 
ft. high. Twigs hairy. Leaves lance-shaped, broadest toward apex; bor- 
ders smooth, white silky beneath, light green above, 1 to 2 in. long. Cat- 
kins with few flowers. Pedicel of capsule about 4 the length of capsule 
and style. Dry soil, our area. 
26. §. coactilis, Fernald. (Fig. 15, pl. 23a.) Large shrub with 
coarse branchlets, the younger downy. Leaves oblong or narrow egg- 
shaped, remotely toothed, with lustrous reddish-white down at first, later 
velvety. Stipules half-egg-shaped, persistent. Banks of Penobscot river, 
Maine. 
27. S.argyrocarpa, Anders. (Fig. 14, pl. 23a.) Srtver WILtLow. 
Diffuse shrub, 4 to 2 ft. high. Twigs shining. Leaves 1 to 2 in. long, ob- 
long and widest toward the apex, white silky beneath, bright green above. 
Catkins few flowered. Pedicel as long as the silvery capsule and the style. 
On the White Mountains. 
28. §. myrtilloides, L. (Fig. 13, pl. 23a.) Boa Wittow. Shrub 1 
to 3 ft. high. Twigs brown. Leaves elliptic or egg-shaped, 1 to 2 in. long, 
tapering nearly equally toward each end. Apex obtuse or somewhat 
