. 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. Foxtail Pine 19 they are sharply small-toothed, marked by 3 to 6 rows of conspicuous stomata on each face, and contain resin passages in the pulpy tissue and 2 fibrovascular bun- dles; they are thinly distributed along the twigs and persist for about four years. The flowers appear in July; the staminate in crowded clusters, are oval, about 6 mm. long, with yellow anthers. The pistillate flowers are nearly terminal, stout-
. 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. Foxtail Pine 19 they are sharply small-toothed, marked by 3 to 6 rows of conspicuous stomata on each face, and contain resin passages in the pulpy tissue and 2 fibrovascular bun- dles; they are thinly distributed along the twigs and persist for about four years. The flowers appear in July; the staminate in crowded clusters, are oval, about 6 mm. long, with yellow anthers. The pistillate flowers are nearly terminal, stout- stalked, oval, about 8 mm. long, their scales yellowish and long-pointed. The cones, which do not ripen until the end of the third autumn, are broadly ovoid, 4 to 6 cm. long, sharp-pointed, horizontal or somewhat ascending, short-stalked, brown and shining, their scales thin and flat, about 8 mm. wide, very httle thickened or keeled, and terminated by an oblong, paler knob, surmounted by a small, often deciduous spine; the lower scales are sterile and remain closed, the unexposed portion being purple; seeds oval, rounded at apex, pointed at the base, about 4 mm. long, dark brown, the wing thin, light brown, about 8 mm. long. The wood is soft, durable, brittle, close-grained and orange colored; its specific gravity is about 12. FOXTAIL PINE — Pinus Balfouriana A. Murray A tree of rocky slopes and ridges of the Mt. Shasta region of northern Cali- fornia to the southern Sierra Nevada, occurring at altitudes of from 1500 to about 3400 meters, where it is often reduced to a shrub. Its maximum height is 30 meters, with a trunk diameter of meters. The branches are short, stout, and outspreading in regular whorls, forming a narrow compact cone; on very old trees the branches frequently develop into ir- regular, often picturesque heads. The bark is about 18 nun. thick, deeply fis- sured into broad, coimected, flat ridges, which are broken crosswise into thick, nearly square
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