. 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. 472 The Thorn Trees toothed, densely white woolly-hairy on the lower surface, with rigid appressed hairs on the upper surface when immature, be- coming merely rough, dark green above, half-leathery; leaf-stalks wooUy-hairy, 5 to 25 mm. long. The flowers, about 2 mm. broad, are in many-flowered white woolly- hairy corymbs; calyx densely woolly-hairy, the lobes ovate, long-pointed, glandular- toothed; stamens about 20; anth
. 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. 472 The Thorn Trees toothed, densely white woolly-hairy on the lower surface, with rigid appressed hairs on the upper surface when immature, be- coming merely rough, dark green above, half-leathery; leaf-stalks wooUy-hairy, 5 to 25 mm. long. The flowers, about 2 mm. broad, are in many-flowered white woolly- hairy corymbs; calyx densely woolly-hairy, the lobes ovate, long-pointed, glandular- toothed; stamens about 20; anthers pink; style 5. The fruit, ripening the last of October, is subglobose to short-oblong, about 15 mm. thick, bright cherry-red, woolly-hairy on the ends, its calyx-lobes spreading; flesh orange, dry and mealy, con- taining 5 nutlets, 6 to 8 mm. long, grooved on the back, the nest of nutlets 8 to 11 mm. thick, with a deep sinus between Fig. 426. — Woolly Thorn. 37. WASHINGTON THORN — Cratagus Phanopyrum (Linnaeus fils) Medicus Cratcegus cordata Aiton, not Mespilus cordata Miller. Mespilus Phcenopyrum Linnaeus fils This species grows in moist, rich soil along streams, from Virginia, south along the foothills of the Appalachian Mountains to northern Georgia and Alabama, and from the lower Wabash valley in Illinois to south- em Missouri and northwestern Arkansas. It is often cultivated, and has become natural- ized as far north as Delaware and eastern Pennsylvania. It is frequently a large, spreading shrub, and sometimes becomes a tree 9 meters high, with nearly erect branches forming an oblong head; the bark is grayish brown, scaly; the twigs are chestnut-brown, smooth, bearing slightly curved spines 2 to 5 cm. long. The leaves are broadly ovate to triangu- lar, 2 to 8 cm. long, 2 to 8 cm. wide, pointed or long-pointed at the apex, rounded or heart-shaped at the base, 3- to 7-lobed, 3 of the lobes generally strongly marked, toothed or doubly toothed, with pointed t
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