PINACEAE 299 



PINUS — continued 



P.parviflora. Japanese White Pine. 40. E. Branchlets minutely downy; 



buds \. Ls. 2. Cone 3 X f , in whorls in great profusion. Japan. 



(Fig. 46 J.) 

 P.Peuke. Macedonian Pine. 100. E. Narrow tree. Branchlets green, glossy, 



hairless. Ls. 4, crowded, stiff, rough-edged. Cone 5Xi|. Balkan 



Mountains. 

 P. Strobus. Weymouth Pine. 80. E. Bark smooth and silver-grey on young 



trees. Branchlets with tufts of hairs at first below insertion of Is., not 



glaucous. Ls. 5, light green or bluish green, drooping, rough edged. 



Cone 8x1, curved. East North America. 



PsEUDOLARix FoRTUNEi. Golden Larch. 100. D. Branches whorled. Ls. 

 linear, 2, pale green, in clusters at end of short curved side shoots; alternate and 

 spirally arranged on leading shoots. Male fls. yellow, in clusters at end of short 

 side shoots; female solitary. Cone 2, roundish egg-shaped, woody, falling to 

 pieces when ripe. China. (Fig. 47 b.) 



PSEUDOTSUGA. Douglas Fir. Tall evergreen trees with pointed crowns. 

 Bark grey or greenish, smooth on young trees, thick and furrowed later. Branches 

 whorled, but not so regularly as in the spruces and silver firs. Terminal buds long, 

 narrow, and pointed. Ls. alternate, linear, i, spirally arranged, imperfectly 2- 

 ranked on older branchlets; round slightly raised scars left by fall of Is. Male fls. 

 solitary in 1. -axils; female terminal on short branchlets. Fruit a woody cone, 2x1, 

 hanging; scales with protruding 3-pronged bract. 



P. Doiiglasii [Abies Douglasii). Oregon Douglas Fir. 250. Buds bright chest- 

 nut brown, beech-like, not resinous. Ls. green on upper side. West 

 North America. (Fig. 47 a.) 



P. glaiica. Colorado Douglas Fir. 150. Buds coated with resin. Ls. covered 

 with bluish grey bloom. Colorado, 



P. japonica. Japanese Douglas Fir. 100. Ls. notched at apex. Japan. 



SciADOPiTYS VERTiciLLATA. Umbrella Pine. 100. Ls. linear, 4, grooved below, 

 in whorls. Male fls. in terminal racemes; female solitary, terminal. Cone 3x2, 

 scales with recurved margins. Japan. (Fig. 47 c.) 



SEQUOIA. Tall narrow evergreen trees with pointed crowns and uniform outline. 

 Bark reddish, thick, soft and spongy. Ls. alternate, awl-shaped or linear, lower part 

 adhering to stem. Fruit a woody cone with diamond-shaped scales. 



S. {Wellingtonia) gigantea. Mammoth Tree. 300. Ls. awl-shaped, i, pointed. 



Cone 3x2. California. (Fig. 47 e.) 

 S. sempervirens. Redwood. 300, Ls. linear, lane, f, 2-ranked except on 



leading shoots where they are similar to those of preceding species. 



Cone I X |. California. (Fig. 47 d.) 



* Taiwania cryptomerioides. 150. E. Ls. in young trees alternate, awl- 

 shaped, I, spine-tipped, keeled on both sides; in older trees scale-like, closely 

 pressed to stem. Cone |, egg-shaped, terminal, with numerous rounded over- 

 lapping scales (Bean). Formosa. (Fig. 47 G.) 



Taxodium DISTICHUM. Deciduous Cypress, Swamp Cypress. 100. D. Trunk 

 buttressed at base. In wet places the roots send up hollow protuberances known as 

 'knee-roots.' Ls. alternate, linear, |, 2-ranked, the whole shoot falling off in 



