830 ARBORETUM ET FRUTICETUM BRITANNICUM. 
¥ 14, P. Batsam‘FERA L. The Balsam-bearing Poplar, or Tacamahac 
Tree. 
Identification. Lin. Syst. Veg., 45.; Mich. North Amer. Sylva, 2. p. 237. t.98.; Pursh Sept., 2. 
. 618, 
son y P. T. haca Mill. Dict., No. 6.; the Tacamahac, Amer. ; le Baumier, Fv.; Peu- 
plier liard, and also T'acamahac, in Canada; Balsam Pappel, Ger. 
The Sexes. Plants of the male are in English gardens, and trees are occasionally found with male 
and female flowers on the same catkin. 
Engravings. Michx. North Amer. Sylva, 2. t.98. f.1.; Du Ham. Arb., ed. nov., 2. t. 50.; Pall. 
FI. Ross., 1. t. 41.; the plate of this tree in Arb. Brit., Ist edit., vol. vii. ; and our figs. 1507. and 
1508., and jig. 1509. from Pall. Ross. 
Spec. Char.,§c. Shoot round. Bud very gummy. Petiole round. Disk of 
leaf ovate-acuminate, or ovate-lanceolate, serrated with depressed 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. (Michr.) A 
tree of the middle size. North America, in the most northern parts, and 
in Dahuria and Altai. Height 40 ft. to 50 ft. ; in America, 80 ft. Introduced 
in 1692. Flowers purplish ; March and April. Decaying leaves brown 
and black. 
1507, 1508, 1509. P. balsamifera. 
Varieties, 
¥ P.b. 2 viminalis. P. viminalis Lodd. Cat. ed. 1836; P. salicifolia 
Hort.; P. longifolia Fischer, Pall. Ross. t. 41. B. (Our fig. 1510. 
from a living plant.) — A native of Altai, with 
slender twiggy branches, and leaves nearly 
lanceolate. Lodd. 
+ P. 8.3 latifolia Hort. —Leaves rather broader 
than those of the species. H.S. 
¥ P. 6. 4 intermédia Hort., Pall. Fl. Ross t. 41. 
A. — Anative of Dahuria, with stout, short, 
thick branches knotted with wrinkles; and 
ovate, long, and rather narrow leaves ; and 
generally attaining only the height of a large 
shrub. Hort. Soc. Garden. 
= P. 6.5 suaveolens. P. suaveolens Fischer, and 
Lodd. Cat. ed. 1836. ; the new sweet-scented 
Poplar of the nurseries. — Said to be more 1510. P. b. viminalis. 
_ _ fragrant than any other form of the species. 
¥ P. 6. 6 foliis variegatis Miller. — Leaves variegated. Hort. Soc. Gard. 
The balsam poplar, inthe climate of London, is the very first tree that comes 
