1842 The Trees of Great Britain and Ireland 



specimens collected by Przewalsky in the Ordos territory in Mongolia, seems to be 

 a variety with quite glabrous branchlets and petioles, 



P. suaveolens appears to be confined ^ to western and northern Siberia, and to 

 Mongolia. It has sweet-scented foliage, resembling in this respect P. trichocarpa. 

 Introduced in 1834, it has apparently never thriven in this country, where we have 

 seen no living specimens, except small stunted trees at Kew. It appears to thrive 

 better in Spath's nursery at Beriin, from which we have received specimens, showing 

 healthy foliage and vigorous shoots. Elwes found a fine tree of it in the rich 

 arboretum at Gisselfeld in Denmark, the property of Count Danneskjold-Samso. It 

 measured 65 ft. by 4 ft., and bore the name of P. Simonii. (A. H.) 



POPULUS LAURIFOLIA 



Populus laurifolia, Ledebour, Fl. Alt. iv. 297 (1833), and Icon. Fl. Ross,\. t. 479 (1834) ; Fischer, in 

 Allgem. Gartenzeit. ix. 404 (1841); Schneider, Laubholzkunde, i. 16 (1904); Dode, in Mim. 

 Soc. Hist. Nat. Autun, xviii. 59 (1905) ; Gombocz, in Math. Termes. Kozl. xxx. 102 (191 1). 



Populus balsamifera, Linnaeus, var. viniinalis, Loudon, Arb. et Frut. Brit. iii. 1673 (1838). 



Populus balsamifera, Linnaeus, var. laurifolia, Wesmael, in De Candolle, Prod. xvi. 2, p. 330 (1868). 



Populus Lindleyana? Carribre, in Rev. Hort. 1867, p. 380 (not Booth, ex Loudon, op. cit. 1657); 

 Dode, op. cit. 59. 



A tree, attaining 40 ft. in height. Young branchlets greyish yellow, pubescent 

 especially near the apex, angled with five ridges, which are very prominent in the 

 second year ; lenticels few, scattered, lanceolate. Buds elongated, acute, parallel but 

 not appressed to the twig, exuding a brownish strong-smelling resin. Leaves (Plate 

 410, Fig. 30) on long shoots, 3 to 5 in. long and i to 2 in. broad, lanceolate, 

 rounded at the base, gradually tapering to an acuminate apex ; margin finely and 

 regularly glandular - serrate and ciliate ; upper surface green, pubescent on the 

 midrib; lower surface whitish, with scattered pubescence, most marked on the 

 midrib ; petiole short, terete, but channelled above, pubescent. Leaves on short 

 shoots, smaller, oval, abruptly acuminate at the apex, rounded at the base, on long 

 petioles, which are often two-thirds the length of the blade. 



Staminate catkins (described from a tree at Kew) about 2 in. long, with a 

 greenish white densely pubescent axis, bearing about thirty flowers ; scales large, 

 with about ten densely fringed lobes, and covered with long hairs on both surfaces ; 

 stamens about sixty, with short white filaments and red anthers, on a shallow oblique 

 disc, which is entire and ciliate in margin, glabrous on both surfaces, nearly orbicular, 

 and with a projecting point on one side ; pedicel ^ in., with a few scattered hairs. 

 Pistillate flowers not seen. Fruit two- to three-valved, slightly pubescent. 



1 p. suaveolens is the poplar referred to by Gmelin, Fl. Sibirica, i. 152, fig. 33 (174.7), who says that it grows in most 

 places on the rivers emptying into Lake Baikal, being a little less in size than the tree willow ; while in the upper regions of 

 the Lena, Yenesei, and other northern rivers, it assumes a dwarf form, not exceeding 3.ft. in height. 



2 Dode keeps this distinct, though it is identical in foliage, on account of its pubescent capsules. Wild specimens of P. 

 laurifolia, which I have seen, appear, however, to have pubescent capsules. 



