Trees, Shrubs and Vines 
53. Orange. (Citrus trifoliata.) 
LEAF: trifoliate, alternate; leaflets, 2’, blunt-elliptical, stem- 
less ; the leaf-stalk winged. FLOWER: creamy-white (petals 4- 
8, linear-oblong, thick, stamens usually many, their filaments 
somewhat united) ; May; fruit orange-yellow, small; low tree or 
shrub, spiny. Japan. (Pl. III.) 
54. Spanish Pine. (Pinus mugho.) 
LEAF: 2’, in twos, needle-like, sharp-pointed ; cone, 2', oval, 
horizontal, often 2—3-clustered, scales prickly at apex; tree and 
shrub, 
55. Scotch Pine. (Pinus sylvestris.) 
LEAF: 2-4’, in twos, rather flat, bluish-white; cone tapering, 
the scales with tubercle-like tips ; dark reddish on upper part of 
trunk; prevalent in Northern Europe. 
56. Austrian Pine. (Pinus austriaca.) 
LEAF: 4'-6', in twos, rigid, slender, dark green ; cone conical, 
3' or less; large tree, with rough bark. 
57. Himalayan White Pine. (Pinus excelsus.) 
LEAF: 6'-8’', in fives, whitish, slender, in large pendent tufts, 
nearly twice as long as in native white pine; cones large, 6'-10' 
long. 
58. Swiss, Stone, or Cembra Pine. (Pinus cembra.) 
LEAF: 3'-4', in fives, 4-angled, green, crowded, on erect 
branches; cone somewhat roundish, 2’ long, erect, with round 
seeds the size of peas; small tree from the higher Alps. 
59. Cedar of Lebanon. (Cedrus Libani.) 
LEAF: 1’, much as in larch (whorled), but stiff, evergreen, and 
dark ; cone large, globular; branches stiff and horizontal. (PI. 
IV.) 
60. Himalayan Cedar. (Cedrus atlantica.) 
LEAF: less than 1’, short and clustered as in larch, stiff, ever- 
green, the outer ones always smailer; flat-3-angled, bluish green ; 
cone 4’ or more. 
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