374 ^^^ Trees of Great Britain and ^eland 



LARIX SIBIRICA, Russian Larch 



Larix sibirica, Ledebour, Fl. Alt. iv. 204 (1833); Willkomm, Forstliche Flora, 153 (1887); Kent, 



Veitch's Man. Conifera, 402 (1900); Mayr, Fremdldnd. Wald- u. Parkbdume, 311 (1906). 

 Larix intermedia, Lawson, Agric. Man. 389 (1836); Turczaninow, Bull. Soc. Nat. Mosc. xi. loi 



(1838). 

 Larix archangelica, Lawson, loc. cit. 



Larix europma, De Candolle, van sibirica, Loudon, Arb. et Frut. Brit. iv. 2352 (1838). 

 Larix rossica, Sabine, ex Loudon, Encyl. Trees, 1054 (1842); Trautvetter, Act, Hort. Petrop. ix. 



211 (1884). 

 Larix altaica. Nelson (Senilis), Pinacea, 84 (1866). 

 Larix decidua, Miller, vars. sibirica and rossica; Regel, Gartenflora, xx. loi, t. 684, ff. 1, 2, and 4 



(1871). 

 Pinus intermedia, Fischer, Scht. Am. Entdeck. Phys. Chem. Nat. et Techn. viii. 3. Heft. (183 1). (Not 



Wangenheim.) 

 Pinus Ledebourii, Endlicher, Syn. Conif. 131 (1847). 

 Abies Ledebourii, Ruprecht,^ Beit. Ffianz. Russ. Reich, ii. 56 (1845). 



A tree attaining in Siberia over 100 feet in height and 9 to 12 feet in girth. 

 Bark resembling that of the European larch. Young branchlets slender ; in 

 specimens from the Ural mountains and Tobolsk, pubescent with long hairs in the 

 furrows between the pulvini ; in specimens from the Altai, glabrous ; girt at the base 

 by a sheath of the previous season's bud-scales, within which a ring of pubescence is 

 visible. Branchlets of the second year glabrous, greyish-yellow, shining. Terminal 

 buds broadly conical, resinous, with ciliate scales. Lateral buds hemispherical, dark 

 brown, resinous. Apical buds of the short shoots broadly conical, girt at the base by 

 a dense ring of pubescence. Leaves soft in texture, very long and slender, up to 

 2 inches in length, narrower than in L. europcea, sharp-pointed, agreeing with that 

 species in the arrangement of the stomata, but more deeply keeled on the lower 

 surface. Staminate flowers as in the European larch. Pistillate flowers according to 

 Willkomm, ovoid, pale green. Cones, when unopened, cylindrical, with the terminal 

 scales not gaping and the bracts quite concealed ; variable in size, up to i^ inch long, 

 composed of five spiral rows of scales, five to six scales in each row. Scales convex 

 from side to side and also from the base to the apex, quadrangular, about as long as 

 broad (^ inch) ; upper margin rounded or truncate, thin, entire, not bevelled, inflected ; 

 outer surface finely striate, covered with a reddish-brown pubescence, which is most 

 marked towards the base of the scale. Bract ovate or oblong with a cuspidate point, 

 extending about one-third the height of the scale. Seeds lying on the scale in 

 shallow depressions, with their wings widely divergent and not extending to its 

 upper and outer margin. Seed \ inch long ; with its wing |- to f inch long ; wing 

 about \ inch in width, broadest about the middle. 



This species is amply distinct from L. europcsa, differing in the long and 

 slender leaves, which appear about ten days earlier in the spring ; anti in the 



This name is quoted wrongly as Larix Ledebourii, Ruprecbt, in Index Kewensis, ii. 31, and in Sargent, Silva N. 

 Amer. xii. 4. 



