THE WILLOWS OF OHIO. ola 
The Broad—leaved Willow is a species of the Great Lake ba- 
sin and in Ohio is confined to the northern part of the state. It 
is common along the western portion of the Lake Shore but pro- 
bably does not extend beyond Cleveland. 
Salix glaucophylia at times seems to grade into Salix cordata 
by what are probably a series of hybrids. In other cases it is 
very difficult to separate from S. discolor with which it also pro- 
bably hybridises. 
MYRTILLOIDES. BOG WILLOWS. 
Low shrubs with mostly elliptical, glaucous, glabrous leaves 
strongly reticulate veined and purplish green; aments and bracts 
usually reddened, small, few flowered; filaments often partially 
united showing their affinity with the following group; a group of 
three or four species all very similar to the European Salix 
myrtilloides. 
SALIX PEDICELLARIS (Anders). AMERICAN BocG WILLow. 
A low shrub seldom reaching a height of 1 meter, aereal 
shoots erect, slender, supported in the sphagnum by long creep- 
ing stems which run far down into the bog putting out numerous 
rootlets along their length. Leaves when fully grown sometimes 
9 cm. long and 20-25 mm. broad, but ordinarily smaller, elliptical, 
oblong, spatulate or rarely obovate, pointed at both ends, entire, 
slightly revolute, dark purplish-green above, slightly glaucous 
below, not hairy unless when very young, nearly sessile, venation 
conspicuously reticulate with meshes large and coarse consider- 
ing the size of the leaf. Catkins appearing with the leaves, 
loosely flowered, not more than 25 mm. long in flower, but occa- 
sionally 5 cm. in fruit, scale short, often no longer than the nec- 
tary, as broad as long, filaments often more or less united; cap- 
sules long pedicelled, nearly always glabrous, short conic to cylin- 
dric-conic, obtuse, sometimes 8 mm. long in fruit, with a decided 
tendency to turn red or purple. 
Salix pedicellaris is a northern species growing in cold peat 
bogs where it may be easily recognized by its small size and pe- 
Flate XVI. Salix purpurea (left) and Salix pedicellaris (right.) 
S. purpurea. Typical branch with opposite and scattered leaves; 
flowers and fruit typical, the latter from a European specimen; natural 
size; staminate flower and capsule enlarged three times, photographed 
and brightened. 
S. pedicellaris. Typical summer branch with small ovate leaf from: 
the base of a twig to its left; staminate and carpellate flowers and fruit 
typical, the latter not ripe; natural size; staminate flowers and capsules 
enlarged three times, one of them, marked M, between the leaves of S, 
purpurea. + , 
