LXVIII. SALICA‘CEZ: PO’PULUS. 829 
when they first un- 
fold are smooth and 
brilliant, 7in. to 8 in. 
long on young plants, 
and as much in 
breadth ; while on 
trees 30 or 40 feet 
high they are only 
one fourth the size. 
As an ornamental 
tree, it forms a very 
stately object ; but, from the brittleness of the branches, they are very liable 
to be torn off by high winds. The wood is of little use either in America or 
England. Propagated by layers, as it strikes less freely from cuttings than 
most of the other species. 
1505. P. angulata. 
¥ 13. P. uereropny’tia LZ. The various-shaped-leaved Poplar Tree. 
Identification. Lin. Sp. Pl., 1464.; Michx. Fl. Bor. Amer., 2. p. 244.; Pursh Sept., 2. p. 619, 
Synonymes. P. magna, foliis amplis, &e., Gron. Virg. 194. 157.; P. cordifolia Burgsdorf, Lodd. 
Cpe eats 1836; P. argéntea Miche. North Amer. Sylva 2. p. 235. t-97.; Cotton Tree, Michz. 
The Sexes. Only the male is in British gardens. 
Engiavings. Michx. North Amer. Sylva, 2. t. 97.; N. Du Ham., 2. t. 51. ; and our jig. 1506. 
Spec. Char., §c. Shoot round, tomentose. Leaf, while. young, tomentose ; 
afterwards less so, or glabrous. Petiole but slightly compressed. Disk 
roundish ovate, having a small sinus at the base, and being slightly auricled 
there (or, as Michaux, jun., has expressed it, with the lobes of the base 
lapped, so as to conceal the junction of the petiole), blunt at the tip, 
toothed ; the teeth shallow, and having incurved points. Male flowers 
polyandrous. Female flowers glabrous, situited distantly along the gla- 
brous rachis, and upon long pedicels. (Michx.) A tree. New York to 
Carolina, in swamps, and more particularly in the country of the Illinois, 
and on the western rivers. Height 70 ft. to 80 ft. in America; 8 ft. to 10 ft. 
in England. Introduced in 1765. Flowers reddish. Decaying leaves 
greenish yellow; April and May. 
We have never seen plants of this species higher than 5 or 6 feet ; though 
a specimen tree in the Mile End Nursery, and another at Syon, must have 
been planted more than 50 or 60 years; and though it is said by Bosc to be a 
lofty tree in the neighbourhood of Paris. 
It is a very remarkable species, from the 
particular character of its leaves, which, v. 
though as large as, or larger than, those hese 
of P. angulata, and something resembling , 
them in outline and in position on the a) 
branches, yet have nearly cylindrical foot- / ~~3 We = 
stalks, and their disks hanging down on a? 
ai 
-each side from the midrib in a flaccid Bi, 
Taanner, not observable in any other spe- 
cies of the genus. The young branches 
and the annual shoots are round, instead 
of being angular, like those of P. angulata, 
P. canadénsis, and P. monilifera. The 
leaves, while very young, are covered 
with a thick white down, which gradually 
disappears with age, till they at last 1506. P. heterophylla. 
become perfectly smooth above, and 
slightly downy beneath. Propagated by inarching on any of the varieties ot 
P. nigra. If this species were grafted at the height of 30 or 40 feet on P. 
monilifera, it would form a very singular and beautiful drooping tree. 
