PINACEAE 295 



LARIX — continued 



round or cylindrical; female catkins round, red or purple, erect. Cones small, 



woody, 



L. americana {L.laricina). Tamarack. 80. Branchlets reddish brown. Ls. 1,3- 

 sided, very narrow, bright green. Cone i, egg-shaped. East North America. 



L. europaea {L. decidua). Common Larch. 150. Branchlets yellowish grey, 

 hairless. Ls. 1 1, bright green, soft. Female catkins purple. Cone i|. 

 Europe. (Fig. 45 A.) 



L. Griffithii. Sikkim Larch. 60. Branchlets long and drooping. Ls. i. Female 

 catkins purple. Cone 3x1. East Himalaya. 



L. leptolepis {L. Kaempferi). Japanese Larch. 100. Branchlets reddish brown. 

 Ls. I h, with two white bands below. Female catkins red. Cone i x i . Japan. 



L. occidentalis. 200. Bark reddish. Ls. i^. Cone i|xf, with conspicuous 

 bracts. West North America. (Fig. 45 B.) 



LiBOCEDRUS DECURRENS. Inccnsc Cedar. 120. E. A tall narrow tree with erect 

 branches and dense foliage. Bark chocolate colour, scaling off in small rectangles. 

 Branchlet systems flattened, green on both sides, set in vertical plane. Ls. in fours, 

 scale-like, with long tapering bases, dark green. Cone f , erect, elongated, 4-scaled, 

 seeds winged. West North America. (Fig. 44 u.) 



PICEA. Spruce. Tall narrow evergreen trees with pointed crowns. Bark scaly, 

 grey or greenish, often with a bronze or pinkish tinge ; branches whorled in young 

 trees, main branchlets opposite. Ls. alternate, linear, leaving small pegs on the 

 branchlet when they fall. Male catkins in 1. -axils at end of shoots, yellow or red; 

 female terminal, green or purple. Cones hanging. 



{a) Ls. flattened or distinctly 2-edged, with grey lines 



on one side only 



P. brachytyla. 80. Ls. on upper side of shoot only, f , dark green above, 

 bluish grey below. Cone 4x2, scales not toothed. China. 



P. Breweriana. Weeping Spruce. 100. End of branchlet hangs perpendicu- 

 larly. Ls. I, radially arranged. Cone 3, light orange-brown, scales 

 rounded and entire. West North America. (Fig. 45 g.) 



P. jezoensis {P. ajanensis). Yeddo Spruce. 150. Ls. on upper side of shoot 

 only, I, blunt, dark green above, vividly blue-white below. Cone 2x1, 

 scales toothed. Japan. 



P. Oniorika. Serbian Spruce. 100. Buds enclosed by ring of awl-shaped 

 scales. Ls. i, thick, directed at different angles on central upper part of 

 shoot. Cone 2, egg-shaped, scales toothed. South-west Serbia. (Fig. 45 c.) 



P. sitchensis [Abies Menziesii). Sitka Spruce. 200. Branchlets very stiff, 

 yellowish brown, hairless. Ls. i, stiff and prickly-pointed, radially 

 arranged, green on one side, silvery on the other. Cone 4x1, blunt, pale 

 brown. West North America. (Fig. 45 f.) 



{h) Ls. quadrangular in section ; grey lines on both sides 



P. alba {P. glauca). White Spruce. 100. Branchlets hairless. Ls. |, with 

 pale bluish green bloom. Cone 2, cylindrical; scales very thin, nearly 

 entire. North America. (Fig. 45 d.) 



P. asperata. 100. Branchlets yellowish grey. Ls. f , radially arranged, leaving 

 large pegs. Cone 4 X i|, scales entire, China, 



