. 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. 282 The Oaks. Fig. 234. — Red Oak. tree. The bark is up to 4 cm. thick, shallowly furrowed into low rounded ridges slightly broken into close plates, dark reddish brown; on younger trunks and on branches it is smooth and gray to brown. The twigs are slender, Ught green and shining, be- coming dark green or reddish, and finally dark brown. The winter buds are ovoid, 6 mm. long, narrowed upward to a sharp point and light br
. 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. 282 The Oaks. Fig. 234. — Red Oak. tree. The bark is up to 4 cm. thick, shallowly furrowed into low rounded ridges slightly broken into close plates, dark reddish brown; on younger trunks and on branches it is smooth and gray to brown. The twigs are slender, Ught green and shining, be- coming dark green or reddish, and finally dark brown. The winter buds are ovoid, 6 mm. long, narrowed upward to a sharp point and light brown. The leaves are oval, ovate or obovate in outline, 10 to 20 cm. long, the 5 to 7 lobes ascending, entire or with a few bristle- tipped teeth, their sinuses rounded and ex- tending about half-way to the midrib, base wedge-shaped or obtuse. They are thin but firm, dull green, Uttle shining, with prominent yellow, or often red midrib above, pale and smooth, except for tufts of hairs in the axils of the veins, and with a yellow midrib beneath, turning dull yellow or Ught brown and fall ofif early in autumn. The leaf-stalk is 3 to 5 cm. long, usually red or yellow. The flowers appear when the leaves are about half unfolded, the staminate in clustered slender hairy catkins about i dm. long, scattered on short pedicels; the calyx is deeply lobed, with 4 or 5 rounded lobes; the stamens 4 or 5, exserted, their anthers large, oblong, notched, and smooth. The pistillate flowers are few together on short smooth stalks; involucre-scales ovate, mostly blunt, reddish brown; floral bracts longer than the scales of the involucre; calyx-lobes lanceolate, sharp-pointed; styles 3, spreading, Ught green. The fruit ripens in the autumn of the second season, one or two together, on stalks about 6 nun. long; its nut is ovoid, to 3 cm. long, flat at the base, tipped at apex, the interior of the shell velvety; cup flat, saucer-shaped, to cm. across, hairy within, Ught reddish brown out
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Keywords: ., bookcentury1900, bookdecade1900, bookpublishernewyorkhholtandco
