WILLOW FAMILY. 505 
32. Salix myrtilloides L. Bog Willow. (Fig. 1204.) 
Salix myrtilloides I. Sp. Pl. 1019. 1753. 
An erect slender glabrous shrub, 1°-3° high, the 
twigs light brown, terete. Leaves oblong, elliptic 
or somewhat obovate, obtuse or acute at the apex, 
entire, mostly narrowed at the base, 1/-214’ long, 
4/’-S’’ wide, short-petioled, bright green above, 
pale or glaucous beneath, their margins slightly 
revolute; aments expanding with the leaves, leafy- 
bracted at the base, rather dense, 1’ or less long, 
or the pistillate longer in fruit; scales persistent, 
obtuse, slightly villous; stamens 2; filaments gla- 
brous; style shorter than or equalling the stigmas; 
capsule oblong-conic, obtuse, glabrous, 24’ long, 
2-3 times as long as the filiform pedicel which 
slightly exceeds the scale. 
In bogs, New Brunswick and Quebec to British 
Columbia, south to New Jersey and Iowa. Also in 
northern Europe. April-May. 
Salix myrtilloides pedicellaris Anders. Mon. Sal. 96. 1867. 
Leaves narrower, oblong-linear or oblanceolate; pedicels sometimes longer. Range of the type. 
33. Salix Uva-ursi Pursh. Bearberry Willow. (Fig. 1205.) 
Salia Uva-urst Pursh, Fl. Am. Sept. 610. 1814. 
Salix Cutleri Tuckerm. Am. Journ, Sci. 45: 36. 1843. 
A depressed or prostrate glabrous shrub, the 
terete brown branches 6’-12’ long, diffuse from a 
deep central root. Leaves oboyate or elliptic, ob- 
tuse or acute at the apex, narrowed at the base, 
crenulate-denticulate or entire, 4/’—10’’ long, 2//— 
5’’ wide, prominently veined, deep green and 
shining above, pale beneath; petioles 1’/’-2’’ long; 
aments leafy-bracted at the base, dense, about 14’ 
long in flower, the pistillate 1/-2’ long in fruit; 
scales persistent, obovate, obtuse, densely silky; 
stamens usually solitary, rarely 2; filaments gla- 
brous; style short; capsule ovoid-conic, acute, 
glabrous, very short-pedicelled. 
Labrador and Hudson Bay, south to the summits of 
the mountains of New York and New England. 
May-June. 
Se AY 
34. Salix herbacea L. Dwarf Willow. 
(Fig. 1206.) 
Salix herbacea \,. Sp. Pl. 1018. 1753. 
A depressed matted shrub, with very slender angled 
twigs 1/-6’ long, the yourgest foliage somewhat 
pubescent. Mature leaves glabrous, suborbicular, 
rounded or retuse at the apex, cordate or rounded at 
the base, thin, crenulate-denticulate all around, finely 
reticulate-veined, bright green and shining on both 
sides, 5’’-10’’ in diameter; petioles very slender, 2’/- 
4’ long; aments terminating 2-leaved branchlets, 4- 
1o-flowered, 2’’-4’’ long; scales obovate, obtuse, per- 
sistent, glabrous or nearly so; stamens 2; filaments 
glabrous; style rather longer than the 2-cleft stigmas; 
capsule narrowly conic, glabrous, nearly sessile. 
Labrador and Quebec, through arctic America, and on 
the White Mountains of New Hampshire and Mt. Katah- 
din, Maine. Alsoin Europe and Asia. Summer. 
