1672 ARBORETUM AND FRUTICETUM. PART JII. 
minal branches of trees are liable to be injured by severe frost; but in the 
climate of London this chiefly applies to plants in the nurseries. The Caro- 
lina poplar roots from cuttings with some difficulty ; and, therefore, in British 
nurseries, it is commonly propagated by layers. In ornamental plantations, 
it ought always, as Miller advises, to be planted in situations where it will 
be sheltered by other trees; and, where it is wished to attain its full size, it 
ought always to be planted in good soil, and near water. In North America, 
where it grows in the swamps of Carolina, it is accompanied by the Taxo- 
dium distichum, Nyssa biflora, A’cer rubrum, Carya aquatica, Quércus lyrata, 
Pépulus canadénsis, and P. heterophylla. 
Statistics. Pépulus angulata in Britain. At Syon, it is 83ft. high, diameter of the trunk $ft., 
and of the head 61 ft.: see the plate of this tree in our last Volume. At Ham House, Essex, it is 
70 ft. high, diameter of the trunk 22 ft., and of the head 45ft. In Durham, at Southend, 15 years 
planted, it is 65 ft. high. In Suffolk, at Ampton Hall, 57 years planted, it is 64 ft. high ; the diameter 
of the trunk 2 ft. 3in., and of the head 95 ft. In Yorkshire, at Grimston, 12 years planted, it is 50 ft. 
high. In the Experimental Garden, Inverleith, 9 years planted, it is 15 ft. high. 
Populus angulata in Foreign Countries. In France, at Nantes, in the nursery of M. De Nerriéres, 
60 years old, it is 80 ft. high, with a trunk 12 ft. in diameter ; in the Botanic Garden at Avranches, 
24 years planted, it is 50 ft. high; the diameter of the trunk 13ft., and of the head 30 ft. In 
Austria, at Vienna, in the University Botanic Garden, 8 years planted, it is 24 ft. high; at Briick 
on the Leytha, 70 years old, it is 80ft. high, the diameter of the trunk 22 ft., and of the head 48 ft. 
In Bavaria, at Munich, in the English Garden, 16 years old, it is 15 ft. high. 
Commercial Statistics. Plants, in the London nurseries, are 1s. 6d. each ; at 
Bollwyller, 1 franc and 50 cents ; at New York, 20 cents. 
¥ 13. P. HETEROPHY’LLA L. The various-shaped-leaved Poplar Tree. 
Identification. Lin. Sp. Pl., 1464.; Ait. Hort. Kew., ed. 1., 3. p. 407., ed. 2., 5. p. 397.; Michx. Fl. 
Bor. Amer., 2. p. 244.; Willd. Arb., 233., Sp. Pl., 4. p. 806.; Pursh Fl. Amer. Sept., 2. p. 619. 5 
Spreng. Syst. Veg., 2. p. 244. 
Synonymes. P. magna, foliis amplis, aliis cordiformibus, aliis subrotundis, primoribus tomentosis 
Gron. Virg., 194. 157.; P. cordifolia Burgsdorf, Lodd. Cat., edit. 1836. ; P. argéntea Micha. North 
Amer. Sylva, 2. p. 235. t. 97.; Cotton Tree, Michx. N. A. S. 
The Sexes. Michaux the elder has noticed some characters of the flowers of both sexes in his cha- 
racter of the species in the FY. Bor. Amer.; and they will be found translated in our specific 
character, Only the male is in British gardens. 
Engravings. Michx. Arb., 3. t. 9.; Michx. North Amer. Sylva, 2. t. 97.; N. Du Ham., 2. t. 51. ; and 
our fig. 1534. 
Spec. Char., §c. Shoot round, tomentose. Leaf, while young, tomen- 
tose; 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 shal- 
low, and having incurved points. Male 
flowers polyandrous. Female flowers gla- 
brous, situated distantly along the glabrous 
rachis, and upon long pedicels. (Miche. 
sen., and Pursh.) A tree, a native of , 
North America, from New York to Caro- 
lina, in swamps, and more particularly in 
the country of the Illinois, and on the 
western rivers. It grows there to the 
height of 70 ft. or 80 ft.; flowering in 
April and May. It was introduced into 
England in 1765; but we have never seen 
plants of it higher than 5 ft. or 6 ft.; 
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 remark- 
able species, from the particular character of its leaves, which, though as large 
as, or larger than, those of P. angulata, and something resembling them in out- 
line and in position on the braitches, yet have nearly cylindrical footstalks, 
and their disks hanging down on each side from the midrib in a flaccid manner, 
not observable in any other species of the genus, According to Michaux, 
ge 5. 
