. 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. Arizona White Oak 315 about one third of the nut, covered with woolly scales, which are slightly thickened toward the base, thinner, and forming a slight fringe around the rim of the cup. Quercus minima (Sargent) Small and Q. succulenta Small, of Florida, and Q. jusiformis Small, of central Texas, are shrubby Live oaks not known to form trees. 32. ARIZONA WHITE OAK—Quercus amonica Sargent This is the most abundant White o
. 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. Arizona White Oak 315 about one third of the nut, covered with woolly scales, which are slightly thickened toward the base, thinner, and forming a slight fringe around the rim of the cup. Quercus minima (Sargent) Small and Q. succulenta Small, of Florida, and Q. jusiformis Small, of central Texas, are shrubby Live oaks not known to form trees. 32. ARIZONA WHITE OAK—Quercus amonica Sargent This is the most abundant White oak in southern New Mexico and Arizona, and occurs in adjacent Mexico. It grows at altitudes of 1500 to 3000 meters, and attains a maximum height of 18 meters, with a trunk diameter of m. The branches are stout, spreading horizontally and more or less ascending, forming a usually sjrmmetrical round-topped tree. The bark is about cm. thick, deeply and narrowly fissured into wide lidges, which are broken into long thick plates of a light gray color; that of younger stems is much thinner, with close thin scales. The twigs are stout, woolly at first, becoming less hairy, finally smooth and reddish brown. The leaves are oblong to ovate or obovate, 2 to 8 cm. long, sharp or slightly rounded at the apex, rounded or heart-shaped at the base, entire or wavy, or sometimes spinose-toothed toward the apex, thick and somewhat revolute on the margin; they are thick, stiff, rather dark green and smooth, or covered with stellate hairs, and with a yellowish midrib above, yellow-green or pale green and thickly yellowish-hairy, with a broad thick yel- low midrib and slender, coarsely netted venation beneath, persistent until the new leaves begin to unfold. The leaf- stalk is stout, slightly" flattened, woolly, 4 to 8 mm.'long. The flowers appear in A -1 TVT ii. i • i - 1 J Fig. 268. — Arizona White Oak. Apnl or May, the stanunate m slender hairy catkins 4 to 5 cm. long, their ca
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