Walnut 257 
H. minima Britt. (112) (@mara), Bitternut, native in Canada, 
which is of very upright habit and elegant foliage, with close, finely- 
fissured bark. It is adaptive to swampy conditions. 
H{. Pecan Britt. (113) (oléveformis), of more southern distribution, 
is similar to the former, but still loftier. It is hardy as far north as 
New York. 
HZ. ovata Britt. (114), Shellbark, hardy in the North and also suitable 
for southern planting. H. laciniosa Sarg. (115) (sulcata), Shagbark, 
named from its flaky bark, often developing a narrow elliptical form 
with pendulous branches, is most valuable for its fruit. 
Hf. alba Britt. (116) (tomentosa), Mockernut, thrives in the poor- 
est soils. 
Hi. myristiceformis (117), Nutmeg Hickory, a small tree, with small, 
elegant, deep green foliage, golden-yellow underneath when grown in 
rich soil, deserves attention, especially for small places. It is, how- 
ever, of southern range, hence its hardiness is doubtful. 
WALNUT 
Juglans. Of the ten species of large, medium, and small trees, 
three or four deserve attention, although none of them is of very high 
ornamental value, both foliage and branch system being rather coarse, 
and outlines irregular. Their leaf period is especially shoit. Having 
tap-roots, they are rather difficult to transplant, and need a deep, rich 
soil for good development. They have the advantage of being free 
from insects. 
The largest and handsomest of this group is the native 
species — 
J. migra Linn. (118), Black Walnut, hardy as far as Ottawa, a very 
large tree, growing rapidly, of spreading habit, and varying outline, 
with blackish, strongly fissured bark and dark green, large, rather dig- 
nified foliage; with a short leaf period at both ends, and no interesting 
autumn colors. It is an unneighborly tree, being very greedy and 
shady, its coarse foliage decaying slowly, as well as being rather un- 
clean. It is fit only for wide spaces, singly or in groups, when the shade 
and light effects in its foliage are pleasing, and its sturdy growth, bold 
ramifications and noble stateliness are effective. 
J. cinerea Linn. (119), Butternut or White Walnut. A smaller tree 
(up to one hundred feet), of more northern range and less choice of 
