. 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. Nashville Thorn 469 calyx-lobes erect, persistent; flesh thick, yellow, acid, often quite edible; it contains 3 to s nutlets 7 to 9 mm. long, grooved and ridged on the back, the nest 7 to 9 mm. thick. This species is quite variable; the typical form has about ten stamens. C. lohulata Sargent is a form with more deeply cut leaves; C. polita Sargent, a smoother, and C. exclusa Sargent, a more hairy form; C. neo-londonensis
. 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. Nashville Thorn 469 calyx-lobes erect, persistent; flesh thick, yellow, acid, often quite edible; it contains 3 to s nutlets 7 to 9 mm. long, grooved and ridged on the back, the nest 7 to 9 mm. thick. This species is quite variable; the typical form has about ten stamens. C. lohulata Sargent is a form with more deeply cut leaves; C. polita Sargent, a smoother, and C. exclusa Sargent, a more hairy form; C. neo-londonensis Sargent, and C. HUlii Sargent, are twenty stamened forms with rougher leaves. 32. BUCKLEY'S THORN — OratsBgua texana Buckley Buckley's thorn occurs in the rich bottom lands of central and western Texas. It is a tree sometimes 10 meters high, with ascending branches forming a broad round-topped crown; the bark is scaly; the twigs are hairy, becoming smooth, dull reddish brown, and bear occasional chestnut-brown spines about 5 cm. long. The leaves are broadly ovate, 5 to 10 cm. long, 3 to 8 cm. broad, pointed or rounded at the apex, wedge-shaped at the base, doubly toothed, sometimes sUghtly lobed and the base square cut, hairy when young, becoming dark green and smooth above, paler beneath; leaf- stalks slightly hairy, winged above, i to 3 cm. long. The flowers are about 2 cm. wide, in many-flowered woolly- hairy corymbs; calyx-tube and ovate long-pointed lobes densely woolly- hairy, lobes sharply glandular-toothed; stamens about 20; anthers dark pink; ^^°- ^^^'^ - Buckley's Thom. styles about 5. The fruit ripens about the last of October; it is short-oblong to pear-shaped, 12 to 18 mm. thick, bright scarlet, hairy; calyx-lobes erect; flesh soft and thick,^ellow, sweet and edible; it contains 5 nutlets 7 to 9 nun. long, ridged on the back, the nest of nutlets 8 to 10 mm. thick. 33. NASHVILLE THORN — Crataegus gravida Beadle Limestone hills about Nashville, Tennessee, are th
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