POPULUS nigra, var. Volga. This Poplar is, in form and appear- 
ance, identical with the Lombardy Poplar, but is distinct in lineage, 
being of Russian origin, is hardy, and, furthermore, holds its foliage 
until freezing weather. It is superseding the Lombardy by reason of 
its hardiness and longevity, and those desiring that type should plant 
the Volga. 
P. Can adensis, 
var. aurea Van 
Geertii. Golden 
Poplar. One of 
the finest golden- 
leaved trees for 
contrast groups, as 
it holds its color 
well throughout 
the season. Has 
all the fine, vigor- 
ous characteristics 
of the species. 
PRUNUS Padus. 
European Bird 
Cherry. A pretty, 
medium-sized tree, 
with glossy leaves 
and long clusters 
of small, fragrant 
white flowers in 
May. Theseare fol- 
lowed by black 
fruits, loved of all 
the birds. One of 
the earliest trees to 
leaf in the spring. 
Bechtel’s Flowering Crab 
P. Pissardi. PliR- 
PLE-LEAVED PLUM. 
Handsome form, 
with purple leaves 
and wine-red fruits; 
one of the best of 
the small purple- 
leaved trees, re- 
taining its color 
until fall. Hardy 
wherever the com- 
mon Plum stands. 
PTELEA trifoliata. Hop Tree. A round-headed, loosely branched 
tree, with glossy green foliage, which, if bruised, exhales a pleasant 
hop-like oclor ; covered in fall with numerous green fruit-pods, 
var. aurea. Golden Hop Tree. Resembles the Trifoliata, but has 
bright golden foliage, which retains its color until frost. 
PYRUS angustifolia. Bechtel’s Douhle-flowerino American 
Crab. One of the most beautiful of the many fine varieties of flower- 
Ornamental Trees H 
