. North American trees : being descriptions and illustrations of the trees growing independently of cultivation in North America, north of Mexico and the West Indies . Trees. Red Pine 23 nearly terminal, usually in pairs, short-stalked, broadly oblong, about 8 mm. long, their scales dark purple, long-pointed, refiexed. The cones are horizontal, oval, 5 to 6 cm. long, bright red- brown and shining; scales somewhat concave, the apex transversely ridged and much thickened into a stout knob, armed by a short curved prickle, dull and red-brown on the upper and dark purple or brown on the under side
. North American trees : being descriptions and illustrations of the trees growing independently of cultivation in North America, north of Mexico and the West Indies . Trees. Red Pine 23 nearly terminal, usually in pairs, short-stalked, broadly oblong, about 8 mm. long, their scales dark purple, long-pointed, refiexed. The cones are horizontal, oval, 5 to 6 cm. long, bright red- brown and shining; scales somewhat concave, the apex transversely ridged and much thickened into a stout knob, armed by a short curved prickle, dull and red-brown on the upper and dark purple or brown on the under side of the unexposed parts; seed about 3 mm. long, rounded below, sHghtly flattened toward the apex; wing many times longer than the seed, broadest near the middle, oblique, 4 to 6 mm. wide, thin, hght brown. The wood is soft, weak, somewhat brittle and close- , ,. , , ,, Fig. 16. — Arizona Yellow Pine. gramed, hght red or yellow- ish with very resinous bands and passages; its specific gravity is It is occasionally sawed into lumber, especially in 16. RED PINE — Pinus resinosa Solander Of the American pines this is the closest related to the common European or Scotch pine ^ Pinus sylvestris L., so often seen in cultivation in the eastern United States. It is a northern tree, occurring from Nova Scotia to Manitoba southward to the mountains of northern Pennsylvania and central Minnesota, reaching a maximum height of 45 meters, with a trunk diameter of m. The trunk is taU and straight, its branches stout, spreading, more or less pen- dulous, forming a broad, irregular cone; when very old the lower branches have disappeared and some of the upper ones have enlarged, forming an irregular round open head. The bark is often 3 cm. thick, sHghtly and shallowly fissured into broad, flat ridges covered with loose, hght reddish scales. The twigs are stout, smooth, except for the persistent bases of the bud-scales, purplish brown, finally hght reddish brown; the win
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