CHAP. CIII. SALICA CEE. PO’PULUS. 1673 
the trunks of trees of this kind, in North America, are covered with a very 
thick and deeply furrowed bark. The young branches and the annual 
shoots are round, instead of being angular, like those of P. angulata, P. 
canadénsis, and P. monilffera. The leaves, while very young, are covered 
with a thick white down, which gradually disappears with age, till the leaves 
at last become perfectly smooth above, and slightly downy beneath. They 
are borne on long petioles; the disks are often 6 in. in length, and as much in 
breadth ; of a thick nature, denticulated and heart-shaped, with the lobes of 
the base lapped, so as to conceal the junction of the petiole. The catkins 
are drooping, and about 3 in. long, which is about half the length of those of 
P. angulata. “ The wood,” Michaux adds, “is soft and light, with the heart 
yellowish, and inclining to red; and the young branches are filled with a pith 
of the same colour. The tree is said to flourish in France, where, as in 
America, its wood is held in little esteem. Both in French and British nur- 
series, it is propagated only by inarching and by layers. It well deserves 
culture as an ornamental tree, in rich moist soil, in a sheltered situation, 
where its large leaves will not be in danger of being torn by the wind. The 
male catkins are produced in great abundance ; and, being very thick, though 
not very long, they make a fine appearance, from their rich brownish red and 
yellow colour. Plants,in the London nurseries, are 2s. 6d. each; at Boll- 
wyller, 2 francs ; and at New York, 20 cents. 
¥ 14. P. Bausami’reERA L. The balsam-bearing Poplar, or Tacamahac 
Tree. 
Identification. Lin. Syst. Vég., 45., Mat. Med., 215.; Pall. Fl. Ross., 1. p. 67. t. 41.; Ait. Hort. Kew., ed. 
2., 5. p. 397. ; Willd. Arb., 230., Sp. Pl., 4. p. 805. ; Michx. Arb., 3.; North Amer. Sylva, 2. p. 237. 
t. 98.; Pursh Fl. Amer. Sept., 2. p. 618. 
Synonymes. P. Tacamahdaca Mill. Dict., No. 6.; the Tacamahac, Amer. ; le Baumier, Fr. ; Peuplier 
liard, and also Tacamahac, in Canada ; Balsam Pappel, Ger. 
The Sexes. Plants of the male are in English gardens. The female is figured in Pallas’s Flora Ros- 
sica, |. t.41. One or two flowers, clearly bisexual, have been found in a catkin of otherwise male 
flowers, borne by a tree in the Botanic Garden at Bury St. Edmunds, previously to 1830, which 
bore, at the same time, other catkins of male flowers. Miller mentions that a tree in the Chelsea 
Botanic Garden also produced both male and female flowers. 
Engravings. Michx. Arb., 3, t. 13. f. 1.; North Amer. Sylva, 2. t. 98. f. 1.; Du Ham, Arb., ed. nov., 
2. t. 50.; Pall. FL Ross., 1. t. 41.; Wangh. Amer., t. 28. f. 59.; Trew Ehret., t. 46. ; Catesb. Car., 
1. t. 34.; Gmel. Sib., 1. t. 53. ; Pluk. Alm., t. 281. f. 1. ; our sig. 1535. of the male plant ; fig. 1536. of 
the female ; and the plate of this tree in our last Volume. 
Spec. Char., §c. Shoot round. Bud very gummy. Petiole round. ‘Disk of 
leaf ovate-acuminate, or ovate-lanceolate, serrated with adpressed teeth; 
deep green on the upper surface, whitish on the under one, and tomentose 
there, but rather inconspicuously so, and netted with glabrous veins. Sti- 
pules subspinescent, bearing gum. Stamens 16, or more. (Willd., Michzx. 
jun., and obs.) A tree, a native of North America, and in Dahuria and 
Altai. It was cultivated in England as early as 1692, in the Royal Gardens 
at Hampton Court. (Ait. Hort. Kew.) It flowers in March, in North 
America (Pursh); in April, in England (Ait. Hort. Kew.); and the 
female, in Dahuria, in May. (Padlas.) In the climate of London, according 
to Miller, the male flowers come out in long catkins in April and May, and 
fall off soon after: their stamens are numerous, irregular in height, and 
crowned with bearded anthers of a purple colour. The hermaphrodite 
flowers are produced at the end of the shoots, upon long slender peduncles, 
in very loose catkins, having a leafy involucre under each, which is oval 
and entire; and from the bosom of that arises the peduncle, which is very 
short. Upon the top is placed the petal, or calyx (or nectary, according 
to Linnzeus), shaped like a wide cup, having a style in the centre, and two 
stamens on one side, terminated by pyramidal purple anthers. The female 
flowers are succeeded by oval capsules, terminating in a point, and en- 
closing downy seeds. (Mart, Mill.) 
Varieties. 
¥ P. b. 2 viminalis ; P. viminalis Lodd. Cat., ed. 1836; P. salicifolia Hort. ; 
P. longifolia Fischer, Pall, Ross., t. 41. B; is anative of Altai, with 
