CHAP. CIII. SALICA‘CEH. PO’PULUS. 1671 
Synonymes. P. anguldsa Michz. Fl. Bor. Amer., 2. p. 243.; P. heteroph¥lla Du Roi Harbk., 2. 
p. 150., Manch Weissenst., 80., Wangenh. Amer., 85. ; P. macropbflla Lodd. Cat., edit. 1836; 
P. balsamifera Mill. Dict., No. 5.; Mississippi Cotton Tree, Amer. J f 
The Sexes. A plant at Ampton Hall, Suffolk, and one in the London Horticultural Society’s arbo- 
retum, are both of the male sex. Michaux the elder has briefly described the flowers of both sexes, 
in his Fl. Bor. Amer. ; but, as Michaux the son states, in his North Amer. Sylva, that his father 
had confounded P. angulata and P. canadénsis together in his Flora, we cannot be sure that the 
part descriptive of the Sewer under P. angulata relates to this. Itis given below, in the supposition 
that it may. 
Engravings. Michx. Arb., 3. t. 12. ; North Amer. Sylva, 2. t. 94.; Du Ham. Arb., 2. t. 39. f.9.; 
atesb. Carol., 1. t. 39.; our fig. 1533. ; and the plates of this tree in our last Volume. 
Spec. Char., §c. Bud not resinous, green. Shoot angled, with wings. 
Disk of leaf ovate, deltoid, acuminate, toothed with blunt teeth that have 
the point incurved, glabrous: upon the more vigorous shoots, the disk is 
heart-shaped, and very large. (Pursh, and Miche. jun.) The elder Michaux’s 
description of the flowers under P. angulata is as follows : —“ Male flowers 
polyandrous ; female flowers rather distantly placed upon the rachis, glabrous ; 
the ovary subglobose.” This description is liable to the exception above 
noted. In Martyn’s Miller, the male catkins are said to be like those of P. 
nigra, and the anthers purple. P. angulata,in North America, is, according 
to Pursh, a tree about 80 ft. high; its branches are very brittle, and its leaves 
are very large. It is wild in morasses on the banks of rivers between Virginia 
and Florida, and on the Mississippi. Introduced into England in 1738, and 
flowering in March. 
Varieties. 
¥ P. a. 2 nova Audibert. — The plant of this variety in the London Hor- 
ticultural Society’s Garden being only 2 ft. high, we are unable to 
state in what respect it differs from the species. 
* P. a. 3 Medisz Booth. — A plant in Messrs. Loddiges’s collection, 
received under this name, in 1836, from Messrs. Booth of Hamburg, 
is not yet quite 1 ft. in height. 
Description, §c. The shoots of this species, when young, are extremely 
succulent; and, as they continue growing late in the summer, they are 
frequently killed down several inches by the autumnal frosts. After the 
tree has attained the Ae 
height of 20 ft. or CT aK at 
30 tt, which, in the __ a) ‘s a xy 
climate of London, it ; ; <G 
does in five or six = ) 
years, this isno longer X. 
the case; because the SY 
shoots produced are i | XA 
shorter and less suc- 1533 a 
culent, and, of course, better ripened. According to Michaux, the leaves, 
when they first unfold, are smooth and brilliant, 7in. to 8 in. long on young 
plants, and as much in breadth ; while on trees 30 ft. or 40 ft. high they 
are only one fourth the size. The petiole, compressed in the upper part, 
renders the leaves easily agitated by the wind. ‘“ The annual shoots on 
young trees are very thick, distinctly striated, and of a green colour spotted 
with white; on branches of the second, third, and even of the seventh or 
eighth, years, the traces of the furrows are still observable: they are indicated 
by prominent red lines in the bark, terminating at the insertion of the young 
shoots, which ultimately disappear with the growth of the branches. This 
character belongs also to the cotton-wood (P. canadénsis); but, besides the 
difference of their general appearance, the two species are distinguished by 
their buds : those of the Carolina poplar (P. angulata) are short, of a deep 
green, and destitute of the resinous substance which covers those of the 
cotton-wood (P. canadénsis), and of which the vestiges remain till late in the 
season. The wood of P. angulata is white, soft, and considered of little use 
in North America. 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. In the climate of Paris, the points of the shoots of the ter- 
