830 



ARBORETUM ET FRUTICETUM BRITANNICUM. 



14. P. BALSAMI'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. 



p. 618. 

 Synoni/mes. P. Tacamahdca Mill. Diet., No. 6. ; the Tacamahac, Amer. ; le Baumier, Fr. ; Peu- 



plief Hard, and also Tacamahac, 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. 



Fl. Ross., 1. t. 41. ; the plate of this tree in Arb. Brit., 1st edit, vol. vii. ; and our figs. 1507. and 



1508, andyfe. 1509. from Pall. Ross. 



Spec. C/iar., $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. {Michx.) 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 Apiil. Decaying leaves brown 

 and black. 



ISO", 108, 1509. P. halsamifera. 



Vai iel'tes. 



P. b. 2 



vimindlis. P. viminalis Load. Cat. ed. 1836 ; P. salicifolia 



Hort.-, P. longifolia Fischer, Pall. Ross. t. 41. B. (Our Jig. 1510. 



from a living plant.) A native of Altai, with 



slender twiggy branches, and leaves nearly 



lanceolate. Lodd. 

 ^ P. b. 3 latifdlia Hort. Leaves rather broader 



than those of the species. H.S. 

 * P. b. 4 intermedia Hort., Pall. Fl. Ross t. 41. 



A. A native 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. 

 *t P. 6. 5 suavcolens. P. suaveolens Fischer, and 



Lodd. Cat. ed. 1836. ; the new sweet-scented 



Poplar of the nurseries. Said to be more 



fragrant than any other form of the species. 

 $ P. b. Qfoliis variegatis Miller. Leaves variegated. Hort. Soc. Gard. 

 The balsam poplar, in the climate of London, is the very first tree that comes 



