. 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. Fig. 420. — Eggert's Thom. Cratmgus dilatata Sargent is an eastern form, with bright red fruit and larger corymbs. 31. PRINGLE'S THORN - Crataegus Pringlei Sargent Pringle's thorn grows from western New England southward to Pennsylvania and westward to southern Ontario, Michigan, and northern Illinois. It is a tree sometimes 8 meters high, with ascending branches forming a broad roimd-topped crown; the bark is thin, scaly
. 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. Fig. 420. — Eggert's Thom. Cratmgus dilatata Sargent is an eastern form, with bright red fruit and larger corymbs. 31. PRINGLE'S THORN - Crataegus Pringlei Sargent Pringle's thorn grows from western New England southward to Pennsylvania and westward to southern Ontario, Michigan, and northern Illinois. It is a tree sometimes 8 meters high, with ascending branches forming a broad roimd-topped crown; the bark is thin, scaly and red-brown; the twigs are chestnut-brown, hairy, becoming gray and smooth, the curved chestnut-brown spines from 3 to 5 cm. long. The leaves are ovate-oval, 3 to 9 cm. long, to 8 cm. wide, broadly pointed at the apex, rounded or abruptly wedge- shaped at the base, doubly toothed, the terminal leaves often with several pairs of bro^-pointed or pointed lobes, bronze- green and hairy when young, becoming bright yellow-green and smooth above, paler beneath, hairy along the veins, be- coming nearly smooth, thin; leaf-stalks hairy, glandular, i to 3 cm. long. The flowers are about 2 cm. wide, in many- flowered, hairy (sometimes nearly smooth) corymbs; calyx-tube slightly hairy, the lan- ceolate long-pointed lobes nearly smooth, glandular-toothed; stamens 5 to 20; an- , . , , , r -A. • Fig. 421. — Pringle's Thom. thers pmk; styles 3 to 5. The fruit npens about the first of October; it is short-oblong, about 15 mm. thick, red and hairy;. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Britton, Nathaniel Lord, 1859-1934; Shafer, John Adolph. New York : H. Holt and Co.
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